git.sesse.net Git - ffmpeg/blob - ffmpeg.c

   1 /*
   2  * ffmpeg main
   3  * Copyright (c) 2000-2003 Fabrice Bellard
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "config.h"
  23 #include <ctype.h>
  24 #include <string.h>
  25 #include <math.h>
  26 #include <stdlib.h>
  27 #include <errno.h>
  28 #include <signal.h>
  29 #include <limits.h>
  30 #include <unistd.h>
  31 #include "libavformat/avformat.h"
  32 #include "libavdevice/avdevice.h"
  33 #include "libswscale/swscale.h"
  34 #include "libavutil/opt.h"
  35 #include "libavcodec/audioconvert.h"
  36 #include "libavutil/audioconvert.h"
  37 #include "libavutil/parseutils.h"
  38 #include "libavutil/samplefmt.h"
  39 #include "libavutil/colorspace.h"
  40 #include "libavutil/fifo.h"
  41 #include "libavutil/intreadwrite.h"
  42 #include "libavutil/dict.h"
  43 #include "libavutil/mathematics.h"
  44 #include "libavutil/pixdesc.h"
  45 #include "libavutil/avstring.h"
  46 #include "libavutil/libm.h"
  47 #include "libavformat/os_support.h"
  48 #include "libswresample/swresample.h"
  49
  50 #include "libavformat/ffm.h" // not public API
  51
  52 #if CONFIG_AVFILTER
  53 # include "libavfilter/avcodec.h"
  54 # include "libavfilter/avfilter.h"
  55 # include "libavfilter/avfiltergraph.h"
  56 # include "libavfilter/buffersink.h"
  57 # include "libavfilter/vsrc_buffer.h"
  58 #endif
  59
  60 #if HAVE_SYS_RESOURCE_H
  61 #include <sys/types.h>
  62 #include <sys/time.h>
  63 #include <sys/resource.h>
  64 #elif HAVE_GETPROCESSTIMES
  65 #include <windows.h>
  66 #endif
  67 #if HAVE_GETPROCESSMEMORYINFO
  68 #include <windows.h>
  69 #include <psapi.h>
  70 #endif
  71
  72 #if HAVE_SYS_SELECT_H
  73 #include <sys/select.h>
  74 #endif
  75
  76 #if HAVE_TERMIOS_H
  77 #include <fcntl.h>
  78 #include <sys/ioctl.h>
  79 #include <sys/time.h>
  80 #include <termios.h>
  81 #elif HAVE_KBHIT
  82 #include <conio.h>
  83 #endif
  84 #include <time.h>
  85
  86 #include "cmdutils.h"
  87
  88 #include "libavutil/avassert.h"
  89
  90 const char program_name[] = "ffmpeg";
  91 const int program_birth_year = 2000;
  92
  93 /* select an input stream for an output stream */
  94 typedef struct StreamMap {
  95     int disabled;           /** 1 is this mapping is disabled by a negative map */
  96     int file_index;
  97     int stream_index;
  98     int sync_file_index;
  99     int sync_stream_index;
 100 } StreamMap;
 101
 102 typedef struct {
 103     int  file_idx,  stream_idx,  channel_idx; // input
 104     int ofile_idx, ostream_idx;               // output
 105 } AudioChannelMap;
 106
 107 /**
 108  * select an input file for an output file
 109  */
 110 typedef struct MetadataMap {
 111     int  file;      ///< file index
 112     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
 113     int  index;     ///< stream/chapter/program number
 114 } MetadataMap;
 115
 116 static const OptionDef options[];
 117
 118 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
 119
 120 static int frame_bits_per_raw_sample = 0;
 121 static int video_discard = 0;
 122 static int same_quant = 0;
 123 static int do_deinterlace = 0;
 124 static int intra_dc_precision = 8;
 125 static int loop_input = 0;
 126 static int loop_output = AVFMT_NOOUTPUTLOOP;
 127 static int qp_hist = 0;
 128 static int intra_only = 0;
 129 static const char *video_codec_name    = NULL;
 130 static const char *audio_codec_name    = NULL;
 131 static const char *subtitle_codec_name = NULL;
 132
 133 static int file_overwrite = 0;
 134 static int do_benchmark = 0;
 135 static int do_hex_dump = 0;
 136 static int do_pkt_dump = 0;
 137 static int do_psnr = 0;
 138 static int do_pass = 0;
 139 static const char *pass_logfilename_prefix;
 140 static int video_sync_method= -1;
 141 static int audio_sync_method= 0;
 142 static float audio_drift_threshold= 0.1;
 143 static int copy_ts= 0;
 144 static int copy_tb= 0;
 145 static int opt_shortest = 0;
 146 static char *vstats_filename;
 147 static FILE *vstats_file;
 148
 149 static int audio_volume = 256;
 150
 151 static int exit_on_error = 0;
 152 static int using_stdin = 0;
 153 static int run_as_daemon  = 0;
 154 static volatile int received_nb_signals = 0;
 155 static int64_t video_size = 0;
 156 static int64_t audio_size = 0;
 157 static int64_t extra_size = 0;
 158 static int nb_frames_dup = 0;
 159 static int nb_frames_drop = 0;
 160 static int input_sync;
 161
 162 static float dts_delta_threshold = 10;
 163
 164 static int print_stats = 1;
 165
 166 static uint8_t *audio_buf;
 167 static uint8_t *audio_out;
 168 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
 169
 170 static void *samples;
 171 static uint8_t *input_tmp= NULL;
 172
 173 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 174
 175 typedef struct InputStream {
 176     int file_index;
 177     AVStream *st;
 178     int discard;             /* true if stream data should be discarded */
 179     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
 180     AVCodec *dec;
 181
 182     int64_t       start;     /* time when read started */
 183     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
 184                                 is not defined */
 185     int64_t       pts;       /* current pts */
 186     double ts_scale;
 187     int is_start;            /* is 1 at the start and after a discontinuity */
 188     int showed_multi_packet_warning;
 189     AVDictionary *opts;
 190 } InputStream;
 191
 192 typedef struct InputFile {
 193     AVFormatContext *ctx;
 194     int eof_reached;      /* true if eof reached */
 195     int ist_index;        /* index of first stream in input_streams */
 196     int buffer_size;      /* current total buffer size */
 197     int64_t ts_offset;
 198     int nb_streams;       /* number of stream that ffmpeg is aware of; may be different
 199                              from ctx.nb_streams if new streams appear during av_read_frame() */
 200     int rate_emu;
 201 } InputFile;
 202
 203 typedef struct OutputStream {
 204     int file_index;          /* file index */
 205     int index;               /* stream index in the output file */
 206     int source_index;        /* InputStream index */
 207     AVStream *st;            /* stream in the output file */
 208     int encoding_needed;     /* true if encoding needed for this stream */
 209     int frame_number;
 210     /* input pts and corresponding output pts
 211        for A/V sync */
 212     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
 213     struct InputStream *sync_ist; /* input stream to sync against */
 214     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
 215     AVBitStreamFilterContext *bitstream_filters;
 216     AVCodec *enc;
 217     int64_t max_frames;
 218
 219     /* video only */
 220     int video_resample;
 221     AVFrame resample_frame;              /* temporary frame for image resampling */
 222     struct SwsContext *img_resample_ctx; /* for image resampling */
 223     int resample_height;
 224     int resample_width;
 225     int resample_pix_fmt;
 226     AVRational frame_rate;
 227     int force_fps;
 228     int top_field_first;
 229
 230     float frame_aspect_ratio;
 231
 232     /* forced key frames */
 233     int64_t *forced_kf_pts;
 234     int forced_kf_count;
 235     int forced_kf_index;
 236
 237     /* audio only */
 238     int audio_resample;
 239     int audio_channels_map[SWR_CH_MAX];  ///< list of the channels id to pick from the source stream
 240     int audio_channels_mapped;           ///< number of channels in audio_channels_map
 241     int resample_sample_fmt;
 242     int resample_channels;
 243     int resample_sample_rate;
 244     float rematrix_volume;
 245     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
 246     FILE *logfile;
 247
 248     struct SwrContext *swr;
 249
 250 #if CONFIG_AVFILTER
 251     AVFilterContext *output_video_filter;
 252     AVFilterContext *input_video_filter;
 253     AVFilterBufferRef *picref;
 254     char *avfilter;
 255     AVFilterGraph *graph;
 256 #endif
 257
 258     int64_t sws_flags;
 259     AVDictionary *opts;
 260     int is_past_recording_time;
 261     int stream_copy;
 262     const char *attachment_filename;
 263     int copy_initial_nonkeyframes;
 264 } OutputStream;
 265
 266
 267 #if HAVE_TERMIOS_H
 268
 269 /* init terminal so that we can grab keys */
 270 static struct termios oldtty;
 271 #endif
 272
 273 typedef struct OutputFile {
 274     AVFormatContext *ctx;
 275     AVDictionary *opts;
 276     int ost_index;       /* index of the first stream in output_streams */
 277     int64_t recording_time; /* desired length of the resulting file in microseconds */
 278     int64_t start_time;     /* start time in microseconds */
 279     uint64_t limit_filesize;
 280 } OutputFile;
 281
 282 static InputStream *input_streams = NULL;
 283 static int         nb_input_streams = 0;
 284 static InputFile   *input_files   = NULL;
 285 static int         nb_input_files   = 0;
 286
 287 static OutputStream *output_streams = NULL;
 288 static int        nb_output_streams = 0;
 289 static OutputFile   *output_files   = NULL;
 290 static int        nb_output_files   = 0;
 291
 292 typedef struct OptionsContext {
 293     /* input/output options */
 294     int64_t start_time;
 295     const char *format;
 296
 297     SpecifierOpt *codec_names;
 298     int        nb_codec_names;
 299     SpecifierOpt *audio_channels;
 300     int        nb_audio_channels;
 301     SpecifierOpt *audio_sample_rate;
 302     int        nb_audio_sample_rate;
 303     SpecifierOpt *rematrix_volume;
 304     int        nb_rematrix_volume;
 305     SpecifierOpt *frame_rates;
 306     int        nb_frame_rates;
 307     SpecifierOpt *frame_sizes;
 308     int        nb_frame_sizes;
 309     SpecifierOpt *frame_pix_fmts;
 310     int        nb_frame_pix_fmts;
 311
 312     /* input options */
 313     int64_t input_ts_offset;
 314     int rate_emu;
 315
 316     SpecifierOpt *ts_scale;
 317     int        nb_ts_scale;
 318     SpecifierOpt *dump_attachment;
 319     int        nb_dump_attachment;
 320
 321     /* output options */
 322     StreamMap *stream_maps;
 323     int     nb_stream_maps;
 324     AudioChannelMap *audio_channel_maps; ///< one info entry per -map_channel
 325     int           nb_audio_channel_maps; ///< number of (valid) -map_channel settings
 326     /* first item specifies output metadata, second is input */
 327     MetadataMap (*meta_data_maps)[2];
 328     int nb_meta_data_maps;
 329     int metadata_global_manual;
 330     int metadata_streams_manual;
 331     int metadata_chapters_manual;
 332     const char **attachments;
 333     int       nb_attachments;
 334
 335     int chapters_input_file;
 336
 337     int64_t recording_time;
 338     uint64_t limit_filesize;
 339     float mux_preload;
 340     float mux_max_delay;
 341
 342     int video_disable;
 343     int audio_disable;
 344     int subtitle_disable;
 345     int data_disable;
 346
 347     /* indexed by output file stream index */
 348     int   *streamid_map;
 349     int nb_streamid_map;
 350
 351     SpecifierOpt *metadata;
 352     int        nb_metadata;
 353     SpecifierOpt *max_frames;
 354     int        nb_max_frames;
 355     SpecifierOpt *bitstream_filters;
 356     int        nb_bitstream_filters;
 357     SpecifierOpt *codec_tags;
 358     int        nb_codec_tags;
 359     SpecifierOpt *sample_fmts;
 360     int        nb_sample_fmts;
 361     SpecifierOpt *qscale;
 362     int        nb_qscale;
 363     SpecifierOpt *forced_key_frames;
 364     int        nb_forced_key_frames;
 365     SpecifierOpt *force_fps;
 366     int        nb_force_fps;
 367     SpecifierOpt *frame_aspect_ratios;
 368     int        nb_frame_aspect_ratios;
 369     SpecifierOpt *rc_overrides;
 370     int        nb_rc_overrides;
 371     SpecifierOpt *intra_matrices;
 372     int        nb_intra_matrices;
 373     SpecifierOpt *inter_matrices;
 374     int        nb_inter_matrices;
 375     SpecifierOpt *top_field_first;
 376     int        nb_top_field_first;
 377     SpecifierOpt *presets;
 378     int        nb_presets;
 379     SpecifierOpt *copy_initial_nonkeyframes;
 380     int        nb_copy_initial_nonkeyframes;
 381 #if CONFIG_AVFILTER
 382     SpecifierOpt *filters;
 383     int        nb_filters;
 384 #endif
 385 } OptionsContext;
 386
 387 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
 388 {\
 389     int i, ret;\
 390     for (i = 0; i < o->nb_ ## name; i++) {\
 391         char *spec = o->name[i].specifier;\
 392         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
 393             outvar = o->name[i].u.type;\
 394         else if (ret < 0)\
 395             exit_program(1);\
 396     }\
 397 }
 398
 399 static void reset_options(OptionsContext *o, int is_input)
 400 {
 401     const OptionDef *po = options;
 402     OptionsContext bak= *o;
 403
 404     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
 405     while (po->name) {
 406         void *dst = (uint8_t*)o + po->u.off;
 407
 408         if (po->flags & OPT_SPEC) {
 409             SpecifierOpt **so = dst;
 410             int i, *count = (int*)(so + 1);
 411             for (i = 0; i < *count; i++) {
 412                 av_freep(&(*so)[i].specifier);
 413                 if (po->flags & OPT_STRING)
 414                     av_freep(&(*so)[i].u.str);
 415             }
 416             av_freep(so);
 417             *count = 0;
 418         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
 419             av_freep(dst);
 420         po++;
 421     }
 422
 423     av_freep(&o->stream_maps);
 424     av_freep(&o->audio_channel_maps);
 425     av_freep(&o->meta_data_maps);
 426     av_freep(&o->streamid_map);
 427
 428     memset(o, 0, sizeof(*o));
 429
 430     if(is_input) o->recording_time = bak.recording_time;
 431     else         o->recording_time = INT64_MAX;
 432     o->mux_max_delay  = 0.7;
 433     o->limit_filesize = UINT64_MAX;
 434     o->chapters_input_file = INT_MAX;
 435
 436     uninit_opts();
 437     init_opts();
 438 }
 439
 440 #if CONFIG_AVFILTER
 441
 442 static int configure_video_filters(InputStream *ist, OutputStream *ost)
 443 {
 444     AVFilterContext *last_filter, *filter;
 445     /** filter graph containing all filters including input & output */
 446     AVCodecContext *codec = ost->st->codec;
 447     AVCodecContext *icodec = ist->st->codec;
 448     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
 449     AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
 450     AVRational sample_aspect_ratio;
 451     char args[255];
 452     int ret;
 453
 454     ost->graph = avfilter_graph_alloc();
 455
 456     if (ist->st->sample_aspect_ratio.num){
 457         sample_aspect_ratio = ist->st->sample_aspect_ratio;
 458     }else
 459         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
 460
 461     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
 462              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
 463              sample_aspect_ratio.num, sample_aspect_ratio.den);
 464
 465     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
 466                                        "src", args, NULL, ost->graph);
 467     if (ret < 0)
 468         return ret;
 469 #if FF_API_OLD_VSINK_API
 470     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
 471                                        "out", NULL, pix_fmts, ost->graph);
 472 #else
 473     buffersink_params->pixel_fmts = pix_fmts;
 474     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
 475                                        "out", NULL, buffersink_params, ost->graph);
 476 #endif
 477     av_freep(&buffersink_params);
 478     if (ret < 0)
 479         return ret;
 480     last_filter = ost->input_video_filter;
 481
 482     if (codec->width  != icodec->width || codec->height != icodec->height) {
 483         snprintf(args, 255, "%d:%d:flags=0x%X",
 484                  codec->width,
 485                  codec->height,
 486                  (unsigned)ost->sws_flags);
 487         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
 488                                                 NULL, args, NULL, ost->graph)) < 0)
 489             return ret;
 490         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
 491             return ret;
 492         last_filter = filter;
 493     }
 494
 495     snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
 496     ost->graph->scale_sws_opts = av_strdup(args);
 497
 498     if (ost->avfilter) {
 499         AVFilterInOut *outputs = avfilter_inout_alloc();
 500         AVFilterInOut *inputs  = avfilter_inout_alloc();
 501
 502         outputs->name    = av_strdup("in");
 503         outputs->filter_ctx = last_filter;
 504         outputs->pad_idx = 0;
 505         outputs->next    = NULL;
 506
 507         inputs->name    = av_strdup("out");
 508         inputs->filter_ctx = ost->output_video_filter;
 509         inputs->pad_idx = 0;
 510         inputs->next    = NULL;
 511
 512         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
 513             return ret;
 514         av_freep(&ost->avfilter);
 515     } else {
 516         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
 517             return ret;
 518     }
 519
 520     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
 521         return ret;
 522
 523     codec->width  = ost->output_video_filter->inputs[0]->w;
 524     codec->height = ost->output_video_filter->inputs[0]->h;
 525     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
 526         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
 527         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
 528         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
 529
 530     return 0;
 531 }
 532 #endif /* CONFIG_AVFILTER */
 533
 534 static void term_exit(void)
 535 {
 536     av_log(NULL, AV_LOG_QUIET, "%s", "");
 537 #if HAVE_TERMIOS_H
 538     if(!run_as_daemon)
 539         tcsetattr (0, TCSANOW, &oldtty);
 540 #endif
 541 }
 542
 543 static volatile int received_sigterm = 0;
 544
 545 static void sigterm_handler(int sig)
 546 {
 547     received_sigterm = sig;
 548     received_nb_signals++;
 549     term_exit();
 550 }
 551
 552 static void term_init(void)
 553 {
 554 #if HAVE_TERMIOS_H
 555     if(!run_as_daemon){
 556     struct termios tty;
 557
 558     tcgetattr (0, &tty);
 559     oldtty = tty;
 560     atexit(term_exit);
 561
 562     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
 563                           |INLCR|IGNCR|ICRNL|IXON);
 564     tty.c_oflag |= OPOST;
 565     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
 566     tty.c_cflag &= ~(CSIZE|PARENB);
 567     tty.c_cflag |= CS8;
 568     tty.c_cc[VMIN] = 1;
 569     tty.c_cc[VTIME] = 0;
 570
 571     tcsetattr (0, TCSANOW, &tty);
 572     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
 573     }
 574 #endif
 575     avformat_network_deinit();
 576
 577     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
 578     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 579 #ifdef SIGXCPU
 580     signal(SIGXCPU, sigterm_handler);
 581 #endif
 582 }
 583
 584 /* read a key without blocking */
 585 static int read_key(void)
 586 {
 587     unsigned char ch;
 588 #if HAVE_TERMIOS_H
 589     int n = 1;
 590     struct timeval tv;
 591     fd_set rfds;
 592
 593     FD_ZERO(&rfds);
 594     FD_SET(0, &rfds);
 595     tv.tv_sec = 0;
 596     tv.tv_usec = 0;
 597     n = select(1, &rfds, NULL, NULL, &tv);
 598     if (n > 0) {
 599         n = read(0, &ch, 1);
 600         if (n == 1)
 601             return ch;
 602
 603         return n;
 604     }
 605 #elif HAVE_KBHIT
 606 #    if HAVE_PEEKNAMEDPIPE
 607     static int is_pipe;
 608     static HANDLE input_handle;
 609     DWORD dw, nchars;
 610     if(!input_handle){
 611         input_handle = GetStdHandle(STD_INPUT_HANDLE);
 612         is_pipe = !GetConsoleMode(input_handle, &dw);
 613     }
 614
 615     if (stdin->_cnt > 0) {
 616         read(0, &ch, 1);
 617         return ch;
 618     }
 619     if (is_pipe) {
 620         /* When running under a GUI, you will end here. */
 621         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
 622             return -1;
 623         //Read it
 624         if(nchars != 0) {
 625             read(0, &ch, 1);
 626             return ch;
 627         }else{
 628             return -1;
 629         }
 630     }
 631 #    endif
 632     if(kbhit())
 633         return(getch());
 634 #endif
 635     return -1;
 636 }
 637
 638 static int decode_interrupt_cb(void)
 639 {
 640     return received_nb_signals > 1;
 641 }
 642
 643 void av_noreturn exit_program(int ret)
 644 {
 645     int i;
 646
 647     /* close files */
 648     for(i=0;i<nb_output_files;i++) {
 649         AVFormatContext *s = output_files[i].ctx;
 650         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
 651             avio_close(s->pb);
 652         avformat_free_context(s);
 653         av_dict_free(&output_files[i].opts);
 654     }
 655     for(i=0;i<nb_input_files;i++) {
 656         av_close_input_file(input_files[i].ctx);
 657     }
 658     for (i = 0; i < nb_input_streams; i++)
 659         av_dict_free(&input_streams[i].opts);
 660
 661     if (vstats_file)
 662         fclose(vstats_file);
 663     av_free(vstats_filename);
 664
 665     av_freep(&input_streams);
 666     av_freep(&input_files);
 667     av_freep(&output_streams);
 668     av_freep(&output_files);
 669
 670     uninit_opts();
 671     av_free(audio_buf);
 672     av_free(audio_out);
 673     allocated_audio_buf_size= allocated_audio_out_size= 0;
 674     av_free(samples);
 675
 676 #if CONFIG_AVFILTER
 677     avfilter_uninit();
 678 #endif
 679     avformat_network_deinit();
 680
 681     av_freep(&input_tmp);
 682
 683     if (received_sigterm) {
 684         av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
 685                (int) received_sigterm);
 686         exit (255);
 687     }
 688
 689     exit(ret); /* not all OS-es handle main() return value */
 690 }
 691
 692 static void assert_avoptions(AVDictionary *m)
 693 {
 694     AVDictionaryEntry *t;
 695     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 696         av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
 697         exit_program(1);
 698     }
 699 }
 700
 701 static void assert_codec_experimental(AVCodecContext *c, int encoder)
 702 {
 703     const char *codec_string = encoder ? "encoder" : "decoder";
 704     AVCodec *codec;
 705     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
 706         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
 707         av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
 708                 "results.\nAdd '-strict experimental' if you want to use it.\n",
 709                 codec_string, c->codec->name);
 710         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
 711         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
 712             av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
 713                    codec_string, codec->name);
 714         exit_program(1);
 715     }
 716 }
 717
 718 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
 719 {
 720     if(codec && codec->sample_fmts){
 721         const enum AVSampleFormat *p= codec->sample_fmts;
 722         for(; *p!=-1; p++){
 723             if(*p == st->codec->sample_fmt)
 724                 break;
 725         }
 726         if (*p == -1) {
 727             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
 728                 av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
 729             if(av_get_sample_fmt_name(st->codec->sample_fmt))
 730             av_log(NULL, AV_LOG_WARNING,
 731                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
 732                    av_get_sample_fmt_name(st->codec->sample_fmt),
 733                    codec->name,
 734                    av_get_sample_fmt_name(codec->sample_fmts[0]));
 735             st->codec->sample_fmt = codec->sample_fmts[0];
 736         }
 737     }
 738 }
 739
 740 static void choose_sample_rate(AVStream *st, AVCodec *codec)
 741 {
 742     if(codec && codec->supported_samplerates){
 743         const int *p= codec->supported_samplerates;
 744         int best=0;
 745         int best_dist=INT_MAX;
 746         for(; *p; p++){
 747             int dist= abs(st->codec->sample_rate - *p);
 748             if(dist < best_dist){
 749                 best_dist= dist;
 750                 best= *p;
 751             }
 752         }
 753         if(best_dist){
 754             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
 755         }
 756         st->codec->sample_rate= best;
 757     }
 758 }
 759
 760 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
 761 {
 762     if(codec && codec->pix_fmts){
 763         const enum PixelFormat *p= codec->pix_fmts;
 764         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
 765             if(st->codec->codec_id==CODEC_ID_MJPEG){
 766                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
 767             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
 768                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
 769             }
 770         }
 771         for(; *p!=-1; p++){
 772             if(*p == st->codec->pix_fmt)
 773                 break;
 774         }
 775         if (*p == -1) {
 776             if(st->codec->pix_fmt != PIX_FMT_NONE)
 777                 av_log(NULL, AV_LOG_WARNING,
 778                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
 779                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
 780                         codec->name,
 781                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
 782             st->codec->pix_fmt = codec->pix_fmts[0];
 783         }
 784     }
 785 }
 786
 787 static double get_sync_ipts(const OutputStream *ost)
 788 {
 789     const InputStream *ist = ost->sync_ist;
 790     OutputFile *of = &output_files[ost->file_index];
 791     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
 792 }
 793
 794 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc)
 795 {
 796     int ret;
 797
 798     while(bsfc){
 799         AVPacket new_pkt= *pkt;
 800         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
 801                                           &new_pkt.data, &new_pkt.size,
 802                                           pkt->data, pkt->size,
 803                                           pkt->flags & AV_PKT_FLAG_KEY);
 804         if(a>0){
 805             av_free_packet(pkt);
 806             new_pkt.destruct= av_destruct_packet;
 807         } else if(a<0){
 808             av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
 809                    bsfc->filter->name, pkt->stream_index,
 810                    avctx->codec ? avctx->codec->name : "copy");
 811             print_error("", a);
 812             if (exit_on_error)
 813                 exit_program(1);
 814         }
 815         *pkt= new_pkt;
 816
 817         bsfc= bsfc->next;
 818     }
 819
 820     ret= av_interleaved_write_frame(s, pkt);
 821     if(ret < 0){
 822         print_error("av_interleaved_write_frame()", ret);
 823         exit_program(1);
 824     }
 825 }
 826
 827 static void do_audio_out(AVFormatContext *s,
 828                          OutputStream *ost,
 829                          InputStream *ist,
 830                          unsigned char *buf, int size)
 831 {
 832     uint8_t *buftmp;
 833     int64_t audio_out_size, audio_buf_size;
 834     int64_t allocated_for_size= size;
 835
 836     int size_out, frame_bytes, ret, resample_changed;
 837     AVCodecContext *enc= ost->st->codec;
 838     AVCodecContext *dec= ist->st->codec;
 839     int osize = av_get_bytes_per_sample(enc->sample_fmt);
 840     int isize = av_get_bytes_per_sample(dec->sample_fmt);
 841     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
 842
 843 need_realloc:
 844     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
 845     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
 846     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
 847     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
 848     audio_buf_size*= osize*enc->channels;
 849
 850     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
 851     if(coded_bps > 8*osize)
 852         audio_out_size= audio_out_size * coded_bps / (8*osize);
 853     audio_out_size += FF_MIN_BUFFER_SIZE;
 854
 855     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
 856         av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
 857         exit_program(1);
 858     }
 859
 860     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
 861     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
 862     if (!audio_buf || !audio_out){
 863         av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
 864         exit_program(1);
 865     }
 866
 867     if (enc->channels != dec->channels
 868      || enc->sample_fmt != dec->sample_fmt)
 869         ost->audio_resample = 1;
 870
 871     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
 872                        ost->resample_channels    != dec->channels   ||
 873                        ost->resample_sample_rate != dec->sample_rate;
 874
 875     if ((ost->audio_resample && !ost->swr) || resample_changed || ost->audio_channels_mapped) {
 876         if (resample_changed) {
 877             av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
 878                    ist->file_index, ist->st->index,
 879                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
 880                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
 881             ost->resample_sample_fmt  = dec->sample_fmt;
 882             ost->resample_channels    = dec->channels;
 883             ost->resample_sample_rate = dec->sample_rate;
 884             swr_free(&ost->swr);
 885         }
 886         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
 887         if (audio_sync_method <= 1 && !ost->audio_channels_mapped &&
 888             ost->resample_sample_fmt  == enc->sample_fmt &&
 889             ost->resample_channels    == enc->channels   &&
 890             ost->resample_sample_rate == enc->sample_rate) {
 891             //ost->swr = NULL;
 892             ost->audio_resample = 0;
 893         } else {
 894             ost->swr = swr_alloc2(ost->swr,
 895                                   enc->channel_layout, enc->sample_fmt, enc->sample_rate,
 896                                   dec->channel_layout, dec->sample_fmt, dec->sample_rate,
 897                                   ost->audio_channels_mapped ? ost->audio_channels_map : NULL,
 898                                   0, NULL);
 899             av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
 900             if (ost->audio_channels_mapped) {
 901                 av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0);
 902                 av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0);
 903             }
 904             av_opt_set_int(ost->swr, "ich", dec->channels, 0);
 905             av_opt_set_int(ost->swr, "och", enc->channels, 0);
 906             if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0);
 907             if(ost->swr && swr_init(ost->swr) < 0){
 908                 av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n");
 909                 swr_free(&ost->swr);
 910             }
 911
 912             if (!ost->swr) {
 913                 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
 914                         dec->channels, dec->sample_rate,
 915                         enc->channels, enc->sample_rate);
 916                 exit_program(1);
 917             }
 918         }
 919     }
 920
 921     av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 922
 923     if(audio_sync_method){
 924         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
 925                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
 926         double idelta= delta*dec->sample_rate / enc->sample_rate;
 927         int byte_delta= ((int)idelta)*2*dec->channels;
 928
 929         //FIXME resample delay
 930         if(fabs(delta) > 50){
 931             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
 932                 if(byte_delta < 0){
 933                     byte_delta= FFMAX(byte_delta, -size);
 934                     size += byte_delta;
 935                     buf  -= byte_delta;
 936                     av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta);
 937                     if(!size)
 938                         return;
 939                     ist->is_start=0;
 940                 }else{
 941                     input_tmp= av_realloc(input_tmp, byte_delta + size);
 942
 943                     if(byte_delta > allocated_for_size - size){
 944                         allocated_for_size= byte_delta + (int64_t)size;
 945                         goto need_realloc;
 946                     }
 947                     ist->is_start=0;
 948
 949                     memset(input_tmp, 0, byte_delta);
 950                     memcpy(input_tmp + byte_delta, buf, size);
 951                     buf= input_tmp;
 952                     size += byte_delta;
 953                     av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", (int)delta);
 954                 }
 955             }else if(audio_sync_method>1){
 956                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
 957                 av_assert0(ost->audio_resample);
 958                 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
 959                        delta, comp, enc->sample_rate);
 960 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
 961                 swr_compensate(ost->swr, comp, enc->sample_rate);
 962             }
 963         }
 964     }else
 965         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
 966                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
 967
 968     if (ost->audio_resample) {
 969         buftmp = audio_buf;
 970         size_out = swr_convert(ost->swr, (      uint8_t*[]){buftmp}, audio_buf_size / (enc->channels * osize),
 971                                          (const uint8_t*[]){buf   }, size / (dec->channels * isize));
 972         size_out = size_out * enc->channels * osize;
 973     } else {
 974         buftmp = buf;
 975         size_out = size;
 976     }
 977
 978     av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 979
 980     /* now encode as many frames as possible */
 981     if (enc->frame_size > 1) {
 982         /* output resampled raw samples */
 983         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
 984             av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
 985             exit_program(1);
 986         }
 987         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
 988
 989         frame_bytes = enc->frame_size * osize * enc->channels;
 990
 991         while (av_fifo_size(ost->fifo) >= frame_bytes) {
 992             AVPacket pkt;
 993             av_init_packet(&pkt);
 994
 995             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
 996
 997             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
 998
 999             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
1000                                        (short *)audio_buf);
1001             if (ret < 0) {
1002                 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1003                 exit_program(1);
1004             }
1005             audio_size += ret;
1006             pkt.stream_index= ost->index;
1007             pkt.data= audio_out;
1008             pkt.size= ret;
1009             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1010                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1011             pkt.flags |= AV_PKT_FLAG_KEY;
1012             write_frame(s, &pkt, enc, ost->bitstream_filters);
1013
1014             ost->sync_opts += enc->frame_size;
1015         }
1016     } else {
1017         AVPacket pkt;
1018         av_init_packet(&pkt);
1019
1020         ost->sync_opts += size_out / (osize * enc->channels);
1021
1022         /* output a pcm frame */
1023         /* determine the size of the coded buffer */
1024         size_out /= osize;
1025         if (coded_bps)
1026             size_out = size_out*coded_bps/8;
1027
1028         if(size_out > audio_out_size){
1029             av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
1030             exit_program(1);
1031         }
1032
1033         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1034         ret = avcodec_encode_audio(enc, audio_out, size_out,
1035                                    (short *)buftmp);
1036         if (ret < 0) {
1037             av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1038             exit_program(1);
1039         }
1040         audio_size += ret;
1041         pkt.stream_index= ost->index;
1042         pkt.data= audio_out;
1043         pkt.size= ret;
1044         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1045             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1046         pkt.flags |= AV_PKT_FLAG_KEY;
1047         write_frame(s, &pkt, enc, ost->bitstream_filters);
1048     }
1049 }
1050
1051 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1052 {
1053     AVCodecContext *dec;
1054     AVPicture *picture2;
1055     AVPicture picture_tmp;
1056     uint8_t *buf = 0;
1057
1058     dec = ist->st->codec;
1059
1060     /* deinterlace : must be done before any resize */
1061     if (do_deinterlace) {
1062         int size;
1063
1064         /* create temporary picture */
1065         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1066         buf = av_malloc(size);
1067         if (!buf)
1068             return;
1069
1070         picture2 = &picture_tmp;
1071         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1072
1073         if(avpicture_deinterlace(picture2, picture,
1074                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1075             /* if error, do not deinterlace */
1076             av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1077             av_free(buf);
1078             buf = NULL;
1079             picture2 = picture;
1080         }
1081     } else {
1082         picture2 = picture;
1083     }
1084
1085     if (picture != picture2)
1086         *picture = *picture2;
1087     *bufp = buf;
1088 }
1089
1090 static void do_subtitle_out(AVFormatContext *s,
1091                             OutputStream *ost,
1092                             InputStream *ist,
1093                             AVSubtitle *sub,
1094                             int64_t pts)
1095 {
1096     static uint8_t *subtitle_out = NULL;
1097     int subtitle_out_max_size = 1024 * 1024;
1098     int subtitle_out_size, nb, i;
1099     AVCodecContext *enc;
1100     AVPacket pkt;
1101
1102     if (pts == AV_NOPTS_VALUE) {
1103         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1104         if (exit_on_error)
1105             exit_program(1);
1106         return;
1107     }
1108
1109     enc = ost->st->codec;
1110
1111     if (!subtitle_out) {
1112         subtitle_out = av_malloc(subtitle_out_max_size);
1113     }
1114
1115     /* Note: DVB subtitle need one packet to draw them and one other
1116        packet to clear them */
1117     /* XXX: signal it in the codec context ? */
1118     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1119         nb = 2;
1120     else
1121         nb = 1;
1122
1123     for(i = 0; i < nb; i++) {
1124         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1125         // start_display_time is required to be 0
1126         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1127         sub->end_display_time -= sub->start_display_time;
1128         sub->start_display_time = 0;
1129         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1130                                                     subtitle_out_max_size, sub);
1131         if (subtitle_out_size < 0) {
1132             av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1133             exit_program(1);
1134         }
1135
1136         av_init_packet(&pkt);
1137         pkt.stream_index = ost->index;
1138         pkt.data = subtitle_out;
1139         pkt.size = subtitle_out_size;
1140         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1141         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1142             /* XXX: the pts correction is handled here. Maybe handling
1143                it in the codec would be better */
1144             if (i == 0)
1145                 pkt.pts += 90 * sub->start_display_time;
1146             else
1147                 pkt.pts += 90 * sub->end_display_time;
1148         }
1149         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1150     }
1151 }
1152
1153 static int bit_buffer_size= 1024*256;
1154 static uint8_t *bit_buffer= NULL;
1155
1156 static void do_video_resample(OutputStream *ost,
1157                               InputStream *ist,
1158                               AVFrame *in_picture,
1159                               AVFrame **out_picture)
1160 {
1161 #if CONFIG_AVFILTER
1162     *out_picture = in_picture;
1163 #else
1164     AVCodecContext *dec = ist->st->codec;
1165     AVCodecContext *enc = ost->st->codec;
1166     int resample_changed = ost->resample_width   != dec->width  ||
1167                            ost->resample_height  != dec->height ||
1168                            ost->resample_pix_fmt != dec->pix_fmt;
1169
1170     *out_picture = in_picture;
1171     if (resample_changed) {
1172         av_log(NULL, AV_LOG_INFO,
1173                "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1174                ist->file_index, ist->st->index,
1175                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1176                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1177         ost->resample_width   = dec->width;
1178         ost->resample_height  = dec->height;
1179         ost->resample_pix_fmt = dec->pix_fmt;
1180     }
1181
1182     ost->video_resample = dec->width   != enc->width  ||
1183                           dec->height  != enc->height ||
1184                           dec->pix_fmt != enc->pix_fmt;
1185
1186     if (ost->video_resample) {
1187         *out_picture = &ost->resample_frame;
1188         if (!ost->img_resample_ctx || resample_changed) {
1189             /* initialize the destination picture */
1190             if (!ost->resample_frame.data[0]) {
1191                 avcodec_get_frame_defaults(&ost->resample_frame);
1192                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1193                                     enc->width, enc->height)) {
1194                     av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
1195                     exit_program(1);
1196                 }
1197             }
1198             /* initialize a new scaler context */
1199             sws_freeContext(ost->img_resample_ctx);
1200             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1201                                                    enc->width, enc->height, enc->pix_fmt,
1202                                                    ost->sws_flags, NULL, NULL, NULL);
1203             if (ost->img_resample_ctx == NULL) {
1204                 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1205                 exit_program(1);
1206             }
1207         }
1208         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1209               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1210     }
1211 #endif
1212 }
1213
1214
1215 static void do_video_out(AVFormatContext *s,
1216                          OutputStream *ost,
1217                          InputStream *ist,
1218                          AVFrame *in_picture,
1219                          int *frame_size, float quality)
1220 {
1221     int nb_frames, i, ret, format_video_sync;
1222     AVFrame *final_picture;
1223     AVCodecContext *enc;
1224     double sync_ipts;
1225     double duration = 0;
1226
1227     enc = ost->st->codec;
1228
1229     if (ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) {
1230         duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base));
1231         if(ist->st->avg_frame_rate.num)
1232             duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate));
1233
1234         duration /= av_q2d(enc->time_base);
1235     }
1236
1237     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1238
1239     /* by default, we output a single frame */
1240     nb_frames = 1;
1241
1242     *frame_size = 0;
1243
1244     format_video_sync = video_sync_method;
1245     if (format_video_sync < 0)
1246         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1247
1248     if (format_video_sync) {
1249         double vdelta = sync_ipts - ost->sync_opts + duration;
1250         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1251         if (vdelta < -1.1)
1252             nb_frames = 0;
1253         else if (format_video_sync == 2) {
1254             if(vdelta<=-0.6){
1255                 nb_frames=0;
1256             }else if(vdelta>0.6)
1257                 ost->sync_opts= lrintf(sync_ipts);
1258         }else if (vdelta > 1.1)
1259             nb_frames = lrintf(vdelta);
1260 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1261         if (nb_frames == 0){
1262             ++nb_frames_drop;
1263             av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1264         }else if (nb_frames > 1) {
1265             nb_frames_dup += nb_frames - 1;
1266             av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1267         }
1268     }else
1269         ost->sync_opts= lrintf(sync_ipts);
1270
1271     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1272     if (nb_frames <= 0)
1273         return;
1274
1275     do_video_resample(ost, ist, in_picture, &final_picture);
1276
1277     /* duplicates frame if needed */
1278     for(i=0;i<nb_frames;i++) {
1279         AVPacket pkt;
1280         av_init_packet(&pkt);
1281         pkt.stream_index= ost->index;
1282
1283         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1284             /* raw pictures are written as AVPicture structure to
1285                avoid any copies. We support temporarily the older
1286                method. */
1287             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1288             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1289             pkt.data= (uint8_t *)final_picture;
1290             pkt.size=  sizeof(AVPicture);
1291             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1292             pkt.flags |= AV_PKT_FLAG_KEY;
1293
1294             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1295         } else {
1296             AVFrame big_picture;
1297
1298             big_picture= *final_picture;
1299             /* better than nothing: use input picture interlaced
1300                settings */
1301             big_picture.interlaced_frame = in_picture->interlaced_frame;
1302             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1303                 if (ost->top_field_first == -1)
1304                     big_picture.top_field_first = in_picture->top_field_first;
1305                 else
1306                     big_picture.top_field_first = !!ost->top_field_first;
1307             }
1308
1309             /* handles same_quant here. This is not correct because it may
1310                not be a global option */
1311             big_picture.quality = quality;
1312             if (!enc->me_threshold)
1313                 big_picture.pict_type = 0;
1314 //            big_picture.pts = AV_NOPTS_VALUE;
1315             big_picture.pts= ost->sync_opts;
1316 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1317 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1318             if (ost->forced_kf_index < ost->forced_kf_count &&
1319                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1320                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1321                 ost->forced_kf_index++;
1322             }
1323             ret = avcodec_encode_video(enc,
1324                                        bit_buffer, bit_buffer_size,
1325                                        &big_picture);
1326             if (ret < 0) {
1327                 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1328                 exit_program(1);
1329             }
1330
1331             if(ret>0){
1332                 pkt.data= bit_buffer;
1333                 pkt.size= ret;
1334                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1335                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1336 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1337    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1338    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1339
1340                 if(enc->coded_frame->key_frame)
1341                     pkt.flags |= AV_PKT_FLAG_KEY;
1342                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1343                 *frame_size = ret;
1344                 video_size += ret;
1345                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1346                 //        enc->frame_number-1, ret, enc->pict_type);
1347                 /* if two pass, output log */
1348                 if (ost->logfile && enc->stats_out) {
1349                     fprintf(ost->logfile, "%s", enc->stats_out);
1350                 }
1351             }
1352         }
1353         ost->sync_opts++;
1354         ost->frame_number++;
1355     }
1356 }
1357
1358 static double psnr(double d)
1359 {
1360     return -10.0*log(d)/log(10.0);
1361 }
1362
1363 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1364                            int frame_size)
1365 {
1366     AVCodecContext *enc;
1367     int frame_number;
1368     double ti1, bitrate, avg_bitrate;
1369
1370     /* this is executed just the first time do_video_stats is called */
1371     if (!vstats_file) {
1372         vstats_file = fopen(vstats_filename, "w");
1373         if (!vstats_file) {
1374             perror("fopen");
1375             exit_program(1);
1376         }
1377     }
1378
1379     enc = ost->st->codec;
1380     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1381         frame_number = ost->frame_number;
1382         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1383         if (enc->flags&CODEC_FLAG_PSNR)
1384             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1385
1386         fprintf(vstats_file,"f_size= %6d ", frame_size);
1387         /* compute pts value */
1388         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1389         if (ti1 < 0.01)
1390             ti1 = 0.01;
1391
1392         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1393         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1394         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1395             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1396         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1397     }
1398 }
1399
1400 static void print_report(OutputFile *output_files,
1401                          OutputStream *ost_table, int nb_ostreams,
1402                          int is_last_report, int64_t timer_start, int64_t cur_time)
1403 {
1404     char buf[1024];
1405     OutputStream *ost;
1406     AVFormatContext *oc;
1407     int64_t total_size;
1408     AVCodecContext *enc;
1409     int frame_number, vid, i;
1410     double bitrate;
1411     int64_t pts = INT64_MAX;
1412     static int64_t last_time = -1;
1413     static int qp_histogram[52];
1414     int hours, mins, secs, us;
1415
1416     if (!print_stats && !is_last_report)
1417         return;
1418
1419     if (!is_last_report) {
1420         if (last_time == -1) {
1421             last_time = cur_time;
1422             return;
1423         }
1424         if ((cur_time - last_time) < 500000)
1425             return;
1426         last_time = cur_time;
1427     }
1428
1429
1430     oc = output_files[0].ctx;
1431
1432     total_size = avio_size(oc->pb);
1433     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1434         total_size= avio_tell(oc->pb);
1435
1436     buf[0] = '\0';
1437     vid = 0;
1438     for(i=0;i<nb_ostreams;i++) {
1439         float q = -1;
1440         ost = &ost_table[i];
1441         enc = ost->st->codec;
1442         if (!ost->stream_copy && enc->coded_frame)
1443             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1444         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1445             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1446         }
1447         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1448             float t = (cur_time-timer_start) / 1000000.0;
1449
1450             frame_number = ost->frame_number;
1451             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1452                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1453             if(is_last_report)
1454                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1455             if(qp_hist){
1456                 int j;
1457                 int qp = lrintf(q);
1458                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1459                     qp_histogram[qp]++;
1460                 for(j=0; j<32; j++)
1461                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1462             }
1463             if (enc->flags&CODEC_FLAG_PSNR){
1464                 int j;
1465                 double error, error_sum=0;
1466                 double scale, scale_sum=0;
1467                 char type[3]= {'Y','U','V'};
1468                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1469                 for(j=0; j<3; j++){
1470                     if(is_last_report){
1471                         error= enc->error[j];
1472                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1473                     }else{
1474                         error= enc->coded_frame->error[j];
1475                         scale= enc->width*enc->height*255.0*255.0;
1476                     }
1477                     if(j) scale/=4;
1478                     error_sum += error;
1479                     scale_sum += scale;
1480                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1481                 }
1482                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1483             }
1484             vid = 1;
1485         }
1486         /* compute min output value */
1487         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1488                                       ost->st->time_base, AV_TIME_BASE_Q));
1489     }
1490
1491     secs = pts / AV_TIME_BASE;
1492     us = pts % AV_TIME_BASE;
1493     mins = secs / 60;
1494     secs %= 60;
1495     hours = mins / 60;
1496     mins %= 60;
1497
1498     bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1499
1500     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1501              "size=%8.0fkB time=", total_size / 1024.0);
1502     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1503              "%02d:%02d:%02d.%02d ", hours, mins, secs,
1504              (100 * us) / AV_TIME_BASE);
1505     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1506              "bitrate=%6.1fkbits/s", bitrate);
1507
1508     if (nb_frames_dup || nb_frames_drop)
1509         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1510                 nb_frames_dup, nb_frames_drop);
1511
1512     av_log(NULL, AV_LOG_INFO, "%s    \r", buf);
1513
1514     fflush(stderr);
1515
1516     if (is_last_report) {
1517         int64_t raw= audio_size + video_size + extra_size;
1518         av_log(NULL, AV_LOG_INFO, "\n");
1519         av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1520                video_size/1024.0,
1521                audio_size/1024.0,
1522                extra_size/1024.0,
1523                100.0*(total_size - raw)/raw
1524         );
1525     }
1526 }
1527
1528 static void generate_silence(uint8_t *buf, enum AVSampleFormat sample_fmt, size_t size)
1529 {
1530     int fill_char = 0x00;
1531     if (sample_fmt == AV_SAMPLE_FMT_U8)
1532         fill_char = 0x80;
1533     memset(buf, fill_char, size);
1534 }
1535
1536 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1537 {
1538     int i, ret;
1539
1540     for (i = 0; i < nb_ostreams; i++) {
1541         OutputStream   *ost = &ost_table[i];
1542         AVCodecContext *enc = ost->st->codec;
1543         AVFormatContext *os = output_files[ost->file_index].ctx;
1544
1545         if (!ost->encoding_needed)
1546             continue;
1547
1548         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1549             continue;
1550         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1551             continue;
1552
1553         for(;;) {
1554             AVPacket pkt;
1555             int fifo_bytes;
1556             av_init_packet(&pkt);
1557             pkt.stream_index= ost->index;
1558
1559             switch (ost->st->codec->codec_type) {
1560             case AVMEDIA_TYPE_AUDIO:
1561                 fifo_bytes = av_fifo_size(ost->fifo);
1562                 ret = 0;
1563                 /* encode any samples remaining in fifo */
1564                 if (fifo_bytes > 0) {
1565                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1566                     int fs_tmp = enc->frame_size;
1567
1568                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1569                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1570                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1571                     } else { /* pad */
1572                         int frame_bytes = enc->frame_size*osize*enc->channels;
1573                         if (allocated_audio_buf_size < frame_bytes)
1574                             exit_program(1);
1575                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1576                     }
1577
1578                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1579                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1580                                               ost->st->time_base.num, enc->sample_rate);
1581                     enc->frame_size = fs_tmp;
1582                 }
1583                 if (ret <= 0) {
1584                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1585                 }
1586                 if (ret < 0) {
1587                     av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1588                     exit_program(1);
1589                 }
1590                 audio_size += ret;
1591                 pkt.flags |= AV_PKT_FLAG_KEY;
1592                 break;
1593             case AVMEDIA_TYPE_VIDEO:
1594                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1595                 if (ret < 0) {
1596                     av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1597                     exit_program(1);
1598                 }
1599                 video_size += ret;
1600                 if(enc->coded_frame && enc->coded_frame->key_frame)
1601                     pkt.flags |= AV_PKT_FLAG_KEY;
1602                 if (ost->logfile && enc->stats_out) {
1603                     fprintf(ost->logfile, "%s", enc->stats_out);
1604                 }
1605                 break;
1606             default:
1607                 ret=-1;
1608             }
1609
1610             if (ret <= 0)
1611                 break;
1612             pkt.data = bit_buffer;
1613             pkt.size = ret;
1614             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1615                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1616             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1617         }
1618     }
1619 }
1620
1621 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1622 static int output_packet(InputStream *ist, int ist_index,
1623                          OutputStream *ost_table, int nb_ostreams,
1624                          const AVPacket *pkt)
1625 {
1626     AVFormatContext *os;
1627     OutputStream *ost;
1628     int ret = 0, i;
1629     int got_output;
1630     void *buffer_to_free = NULL;
1631     static unsigned int samples_size= 0;
1632     AVSubtitle subtitle, *subtitle_to_free;
1633     int64_t pkt_dts = AV_NOPTS_VALUE;
1634     int64_t pkt_pts = AV_NOPTS_VALUE;
1635 #if CONFIG_AVFILTER
1636     int frame_available;
1637 #endif
1638     float quality = 0;
1639
1640     AVPacket avpkt;
1641     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1642
1643     if(ist->next_pts == AV_NOPTS_VALUE)
1644         ist->next_pts= ist->pts;
1645
1646     if (pkt == NULL) {
1647         /* EOF handling */
1648         av_init_packet(&avpkt);
1649         avpkt.data = NULL;
1650         avpkt.size = 0;
1651         goto handle_eof;
1652     } else {
1653         avpkt = *pkt;
1654     }
1655
1656     if(pkt->dts != AV_NOPTS_VALUE){
1657         if(ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1658             ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1659         pkt_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1660     }
1661     if(pkt->pts != AV_NOPTS_VALUE)
1662         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1663
1664     //while we have more to decode or while the decoder did output something on EOF
1665     while (avpkt.size > 0 || (!pkt && got_output)) {
1666         uint8_t *data_buf, *decoded_data_buf;
1667         int data_size, decoded_data_size;
1668         AVFrame *decoded_frame, *filtered_frame;
1669     handle_eof:
1670         ist->pts= ist->next_pts;
1671
1672         if(avpkt.size && avpkt.size != pkt->size)
1673             av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1674                    "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1675             ist->showed_multi_packet_warning=1;
1676
1677         /* decode the packet if needed */
1678         decoded_frame    = filtered_frame = NULL;
1679         decoded_data_buf = NULL; /* fail safe */
1680         decoded_data_size= 0;
1681         data_buf  = avpkt.data;
1682         data_size = avpkt.size;
1683         subtitle_to_free = NULL;
1684         if (ist->decoding_needed) {
1685             switch(ist->st->codec->codec_type) {
1686             case AVMEDIA_TYPE_AUDIO:{
1687                 if(pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1688                     samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
1689                     av_free(samples);
1690                     samples= av_malloc(samples_size);
1691                 }
1692                 decoded_data_size= samples_size;
1693                     /* XXX: could avoid copy if PCM 16 bits with same
1694                        endianness as CPU */
1695                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1696                                             &avpkt);
1697                 if (ret < 0)
1698                     return ret;
1699                 avpkt.data += ret;
1700                 avpkt.size -= ret;
1701                 data_size   = ret;
1702                 got_output  = decoded_data_size > 0;
1703                 /* Some bug in mpeg audio decoder gives */
1704                 /* decoded_data_size < 0, it seems they are overflows */
1705                 if (!got_output) {
1706                     /* no audio frame */
1707                     continue;
1708                 }
1709                 decoded_data_buf = (uint8_t *)samples;
1710                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1711                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1712                 break;}
1713             case AVMEDIA_TYPE_VIDEO:
1714                     if (!(decoded_frame = avcodec_alloc_frame()))
1715                         return AVERROR(ENOMEM);
1716                     avpkt.pts = pkt_pts;
1717                     avpkt.dts = pkt_dts;
1718                     pkt_pts = AV_NOPTS_VALUE;
1719                     if(pkt_dts != AV_NOPTS_VALUE && ist->st->codec->time_base.num != 0) {
1720                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1721                         pkt_dts += ((int64_t)AV_TIME_BASE *
1722                                           ist->st->codec->time_base.num * ticks) /
1723                             ist->st->codec->time_base.den;
1724                     }else
1725                         pkt_dts = AV_NOPTS_VALUE;
1726
1727                     ret = avcodec_decode_video2(ist->st->codec,
1728                                                 decoded_frame, &got_output, &avpkt);
1729                     quality = same_quant ? decoded_frame->quality : 0;
1730                     if (ret < 0)
1731                         goto fail;
1732                     if (!got_output) {
1733                         /* no picture yet */
1734                         av_freep(&decoded_frame);
1735                         goto discard_packet;
1736                     }
1737
1738                     if(decoded_frame->best_effort_timestamp != AV_NOPTS_VALUE)
1739                         ist->next_pts = ist->pts = decoded_frame->best_effort_timestamp;
1740
1741                     if (ist->st->codec->time_base.num != 0) {
1742                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1743                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1744                                           ist->st->codec->time_base.num * ticks) /
1745                             ist->st->codec->time_base.den;
1746                     }
1747                     avpkt.size = 0;
1748                     buffer_to_free = NULL;
1749                     pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1750                     break;
1751             case AVMEDIA_TYPE_SUBTITLE:
1752                 ret = avcodec_decode_subtitle2(ist->st->codec,
1753                                                &subtitle, &got_output, &avpkt);
1754                 if (ret < 0)
1755                     return ret;
1756                 if (!got_output) {
1757                     goto discard_packet;
1758                 }
1759                 subtitle_to_free = &subtitle;
1760                 avpkt.size = 0;
1761                 break;
1762             default:
1763                 return -1;
1764             }
1765         } else {
1766             switch(ist->st->codec->codec_type) {
1767             case AVMEDIA_TYPE_AUDIO:
1768                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1769                     ist->st->codec->sample_rate;
1770                 break;
1771             case AVMEDIA_TYPE_VIDEO:
1772                 if (ist->st->codec->time_base.num != 0) {
1773                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1774                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1775                                       ist->st->codec->time_base.num * ticks) /
1776                         ist->st->codec->time_base.den;
1777                 }
1778                 break;
1779             }
1780             avpkt.size = 0;
1781         }
1782
1783 #if CONFIG_AVFILTER
1784         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1785         for(i=0;i<nb_ostreams;i++) {
1786             OutputFile *of = &output_files[ost_table[i].file_index];
1787             if (of->start_time == 0 || ist->pts >= of->start_time) {
1788                 ost = &ost_table[i];
1789                 if (ost->input_video_filter && ost->source_index == ist_index) {
1790                     if (!decoded_frame->sample_aspect_ratio.num)
1791                         decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1792                     decoded_frame->pts = ist->pts;
1793
1794                     av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE);
1795                 }
1796             }
1797         }
1798 #endif
1799
1800         // preprocess audio (volume)
1801         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1802             if (audio_volume != 256) {
1803                 switch (ist->st->codec->sample_fmt) {
1804                 case AV_SAMPLE_FMT_U8:
1805                 {
1806                     uint8_t *volp = samples;
1807                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1808                         int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1809                         *volp++ = av_clip_uint8(v);
1810                     }
1811                     break;
1812                 }
1813                 case AV_SAMPLE_FMT_S16:
1814                 {
1815                     int16_t *volp = samples;
1816                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1817                         int v = ((*volp) * audio_volume + 128) >> 8;
1818                         *volp++ = av_clip_int16(v);
1819                     }
1820                     break;
1821                 }
1822                 case AV_SAMPLE_FMT_S32:
1823                 {
1824                     int32_t *volp = samples;
1825                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1826                         int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1827                         *volp++ = av_clipl_int32(v);
1828                     }
1829                     break;
1830                 }
1831                 case AV_SAMPLE_FMT_FLT:
1832                 {
1833                     float *volp = samples;
1834                     float scale = audio_volume / 256.f;
1835                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1836                         *volp++ *= scale;
1837                     }
1838                     break;
1839                 }
1840                 case AV_SAMPLE_FMT_DBL:
1841                 {
1842                     double *volp = samples;
1843                     double scale = audio_volume / 256.;
1844                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1845                         *volp++ *= scale;
1846                     }
1847                     break;
1848                 }
1849                 default:
1850                     av_log(NULL, AV_LOG_FATAL,
1851                            "Audio volume adjustment on sample format %s is not supported.\n",
1852                            av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1853                     exit_program(1);
1854                 }
1855             }
1856         }
1857
1858         /* frame rate emulation */
1859         if (input_files[ist->file_index].rate_emu) {
1860             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1861             int64_t now = av_gettime() - ist->start;
1862             if (pts > now)
1863                 usleep(pts - now);
1864         }
1865         /* if output time reached then transcode raw format,
1866            encode packets and output them */
1867         for (i = 0; i < nb_ostreams; i++) {
1868             OutputFile *of = &output_files[ost_table[i].file_index];
1869             int frame_size;
1870
1871             ost = &ost_table[i];
1872             if (ost->source_index != ist_index)
1873                 continue;
1874
1875             if (of->start_time && ist->pts < of->start_time)
1876                 continue;
1877
1878             if (of->recording_time != INT64_MAX &&
1879                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1880                               (AVRational){1, 1000000}) >= 0) {
1881                 ost->is_past_recording_time = 1;
1882                 continue;
1883             }
1884
1885 #if CONFIG_AVFILTER
1886             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1887                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1888             while (frame_available) {
1889                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1890                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1891                     if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1892                         goto cont;
1893                     if (!filtered_frame && !(filtered_frame = avcodec_alloc_frame())) {
1894                         ret = AVERROR(ENOMEM);
1895                         goto fail;
1896                     }
1897                     *filtered_frame= *decoded_frame; //for me_threshold
1898                     if (ost->picref) {
1899                         avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
1900                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1901                     }
1902                 }
1903 #else
1904                 filtered_frame = decoded_frame;
1905 #endif
1906                 os = output_files[ost->file_index].ctx;
1907
1908                 /* set the input output pts pairs */
1909                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1910
1911                 if (ost->encoding_needed) {
1912                     av_assert0(ist->decoding_needed);
1913                     switch(ost->st->codec->codec_type) {
1914                     case AVMEDIA_TYPE_AUDIO:
1915                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1916                         break;
1917                     case AVMEDIA_TYPE_VIDEO:
1918 #if CONFIG_AVFILTER
1919                         if (ost->picref->video && !ost->frame_aspect_ratio)
1920                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1921 #endif
1922                         do_video_out(os, ost, ist, filtered_frame, &frame_size,
1923                                      same_quant ? quality : ost->st->codec->global_quality);
1924                         if (vstats_filename && frame_size)
1925                             do_video_stats(os, ost, frame_size);
1926                         break;
1927                     case AVMEDIA_TYPE_SUBTITLE:
1928                         do_subtitle_out(os, ost, ist, &subtitle,
1929                                         pkt->pts);
1930                         break;
1931                     default:
1932                         abort();
1933                     }
1934                 } else {
1935                     AVPicture pict;
1936                     AVPacket opkt;
1937                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1938                     av_init_packet(&opkt);
1939
1940                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1941                         !ost->copy_initial_nonkeyframes)
1942 #if !CONFIG_AVFILTER
1943                         continue;
1944 #else
1945                         goto cont;
1946 #endif
1947
1948                     /* no reencoding needed : output the packet directly */
1949                     /* force the input stream PTS */
1950
1951                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1952                         audio_size += data_size;
1953                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1954                         video_size += data_size;
1955                         ost->sync_opts++;
1956                     }
1957
1958                     opkt.stream_index= ost->index;
1959                     if(pkt->pts != AV_NOPTS_VALUE)
1960                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1961                     else
1962                         opkt.pts= AV_NOPTS_VALUE;
1963
1964                     if (pkt->dts == AV_NOPTS_VALUE)
1965                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1966                     else
1967                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1968                     opkt.dts -= ost_tb_start_time;
1969
1970                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1971                     opkt.flags= pkt->flags;
1972
1973                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1974                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1975                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1976                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1977                        ) {
1978                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1979                             opkt.destruct= av_destruct_packet;
1980                     } else {
1981                         opkt.data = data_buf;
1982                         opkt.size = data_size;
1983                     }
1984
1985                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1986                         /* store AVPicture in AVPacket, as expected by the output format */
1987                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1988                         opkt.data = (uint8_t *)&pict;
1989                         opkt.size = sizeof(AVPicture);
1990                         opkt.flags |= AV_PKT_FLAG_KEY;
1991                     }
1992                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1993                     ost->st->codec->frame_number++;
1994                     ost->frame_number++;
1995                     av_free_packet(&opkt);
1996                 }
1997 #if CONFIG_AVFILTER
1998                 cont:
1999                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
2000                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
2001                 avfilter_unref_buffer(ost->picref);
2002             }
2003             av_freep(&filtered_frame);
2004 #endif
2005         }
2006
2007 fail:
2008         av_free(buffer_to_free);
2009         /* XXX: allocate the subtitles in the codec ? */
2010         if (subtitle_to_free) {
2011             avsubtitle_free(subtitle_to_free);
2012             subtitle_to_free = NULL;
2013         }
2014         av_freep(&decoded_frame);
2015         if (ret < 0)
2016             return ret;
2017     }
2018  discard_packet:
2019
2020     return 0;
2021 }
2022
2023 static void print_sdp(OutputFile *output_files, int n)
2024 {
2025     char sdp[2048];
2026     int i;
2027     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
2028
2029     if (!avc)
2030         exit_program(1);
2031     for (i = 0; i < n; i++)
2032         avc[i] = output_files[i].ctx;
2033
2034     av_sdp_create(avc, n, sdp, sizeof(sdp));
2035     printf("SDP:\n%s\n", sdp);
2036     fflush(stdout);
2037     av_freep(&avc);
2038 }
2039
2040 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2041                              char *error, int error_len)
2042 {
2043     InputStream *ist = &input_streams[ist_index];
2044     if (ist->decoding_needed) {
2045         AVCodec *codec = ist->dec;
2046         if (!codec) {
2047             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2048                     avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2049             return AVERROR(EINVAL);
2050         }
2051         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2052             snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2053                     ist->file_index, ist->st->index);
2054             return AVERROR(EINVAL);
2055         }
2056         assert_codec_experimental(ist->st->codec, 0);
2057         assert_avoptions(ist->opts);
2058     }
2059
2060     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2061     ist->next_pts = AV_NOPTS_VALUE;
2062     ist->is_start = 1;
2063
2064     return 0;
2065 }
2066
2067 static int transcode_init(OutputFile *output_files, int nb_output_files,
2068                           InputFile  *input_files,  int nb_input_files)
2069 {
2070     int ret = 0, i, j, k;
2071     AVFormatContext *os;
2072     AVCodecContext *codec, *icodec;
2073     OutputStream *ost;
2074     InputStream *ist;
2075     char error[1024];
2076     int want_sdp = 1;
2077
2078     /* init framerate emulation */
2079     for (i = 0; i < nb_input_files; i++) {
2080         InputFile *ifile = &input_files[i];
2081         if (ifile->rate_emu)
2082             for (j = 0; j < ifile->nb_streams; j++)
2083                 input_streams[j + ifile->ist_index].start = av_gettime();
2084     }
2085
2086     /* output stream init */
2087     for(i=0;i<nb_output_files;i++) {
2088         os = output_files[i].ctx;
2089         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2090             av_dump_format(os, i, os->filename, 1);
2091             av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2092             return AVERROR(EINVAL);
2093         }
2094     }
2095
2096     /* for each output stream, we compute the right encoding parameters */
2097     for (i = 0; i < nb_output_streams; i++) {
2098         ost = &output_streams[i];
2099         os = output_files[ost->file_index].ctx;
2100         ist = &input_streams[ost->source_index];
2101
2102         if (ost->attachment_filename)
2103             continue;
2104
2105         codec = ost->st->codec;
2106         icodec = ist->st->codec;
2107
2108         ost->st->disposition = ist->st->disposition;
2109         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2110         codec->chroma_sample_location = icodec->chroma_sample_location;
2111
2112         if (ost->stream_copy) {
2113             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2114
2115             if (extra_size > INT_MAX) {
2116                 return AVERROR(EINVAL);
2117             }
2118
2119             /* if stream_copy is selected, no need to decode or encode */
2120             codec->codec_id = icodec->codec_id;
2121             codec->codec_type = icodec->codec_type;
2122
2123             if(!codec->codec_tag){
2124                 if(   !os->oformat->codec_tag
2125                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2126                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2127                     codec->codec_tag = icodec->codec_tag;
2128             }
2129
2130             codec->bit_rate = icodec->bit_rate;
2131             codec->rc_max_rate    = icodec->rc_max_rate;
2132             codec->rc_buffer_size = icodec->rc_buffer_size;
2133             codec->extradata= av_mallocz(extra_size);
2134             if (!codec->extradata) {
2135                 return AVERROR(ENOMEM);
2136             }
2137             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2138             codec->extradata_size= icodec->extradata_size;
2139
2140             codec->time_base = ist->st->time_base;
2141             if(!strcmp(os->oformat->name, "avi")) {
2142                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2143                     codec->time_base = icodec->time_base;
2144                     codec->time_base.num *= icodec->ticks_per_frame;
2145                     codec->time_base.den *= 2;
2146                 }
2147             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2148                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2149                     codec->time_base = icodec->time_base;
2150                     codec->time_base.num *= icodec->ticks_per_frame;
2151                 }
2152             }
2153             av_reduce(&codec->time_base.num, &codec->time_base.den,
2154                         codec->time_base.num, codec->time_base.den, INT_MAX);
2155
2156             switch(codec->codec_type) {
2157             case AVMEDIA_TYPE_AUDIO:
2158                 if(audio_volume != 256) {
2159                     av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2160                     exit_program(1);
2161                 }
2162                 codec->channel_layout = icodec->channel_layout;
2163                 codec->sample_rate = icodec->sample_rate;
2164                 codec->channels = icodec->channels;
2165                 codec->frame_size = icodec->frame_size;
2166                 codec->audio_service_type = icodec->audio_service_type;
2167                 codec->block_align= icodec->block_align;
2168                 break;
2169             case AVMEDIA_TYPE_VIDEO:
2170                 codec->pix_fmt = icodec->pix_fmt;
2171                 codec->width = icodec->width;
2172                 codec->height = icodec->height;
2173                 codec->has_b_frames = icodec->has_b_frames;
2174                 if (!codec->sample_aspect_ratio.num) {
2175                     codec->sample_aspect_ratio =
2176                     ost->st->sample_aspect_ratio =
2177                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2178                         ist->st->codec->sample_aspect_ratio.num ?
2179                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2180                 }
2181                 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2182                 break;
2183             case AVMEDIA_TYPE_SUBTITLE:
2184                 codec->width = icodec->width;
2185                 codec->height = icodec->height;
2186                 break;
2187             case AVMEDIA_TYPE_DATA:
2188             case AVMEDIA_TYPE_ATTACHMENT:
2189                 break;
2190             default:
2191                 abort();
2192             }
2193         } else {
2194             if (!ost->enc)
2195                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2196             ist->decoding_needed = 1;
2197             ost->encoding_needed = 1;
2198             switch(codec->codec_type) {
2199             case AVMEDIA_TYPE_AUDIO:
2200                 ost->fifo= av_fifo_alloc(1024);
2201                 if (!ost->fifo) {
2202                     return AVERROR(ENOMEM);
2203                 }
2204                 if (!codec->sample_rate)
2205                     codec->sample_rate = icodec->sample_rate;
2206                 choose_sample_rate(ost->st, ost->enc);
2207                 codec->time_base = (AVRational){1, codec->sample_rate};
2208                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2209                     codec->sample_fmt = icodec->sample_fmt;
2210                 choose_sample_fmt(ost->st, ost->enc);
2211                 if (ost->audio_channels_mapped) {
2212                     /* the requested output channel is set to the number of
2213                      * -map_channel only if no -ac are specified */
2214                     if (!codec->channels) {
2215                         codec->channels       = ost->audio_channels_mapped;
2216                         codec->channel_layout = av_get_default_channel_layout(codec->channels);
2217                         if (!codec->channel_layout) {
2218                             av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n");
2219                             exit_program(1);
2220                         }
2221                     }
2222                     /* fill unused channel mapping with -1 (which means a muted
2223                      * channel in case the number of output channels is bigger
2224                      * than the number of mapped channel) */
2225                     for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++)
2226                         ost->audio_channels_map[j] = -1;
2227                 } else if (!codec->channels) {
2228                     codec->channels = icodec->channels;
2229                     codec->channel_layout = icodec->channel_layout;
2230                 }
2231                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2232                     codec->channel_layout = 0;
2233                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2234                 ost->audio_resample |=    codec->sample_fmt     != icodec->sample_fmt
2235                                        || codec->channel_layout != icodec->channel_layout;
2236                 icodec->request_channels = codec->channels;
2237                 ost->resample_sample_fmt  = icodec->sample_fmt;
2238                 ost->resample_sample_rate = icodec->sample_rate;
2239                 ost->resample_channels    = icodec->channels;
2240                 break;
2241             case AVMEDIA_TYPE_VIDEO:
2242                 if (codec->pix_fmt == PIX_FMT_NONE)
2243                     codec->pix_fmt = icodec->pix_fmt;
2244                 choose_pixel_fmt(ost->st, ost->enc);
2245
2246                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2247                     av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2248                     exit_program(1);
2249                 }
2250
2251                 if (!codec->width || !codec->height) {
2252                     codec->width  = icodec->width;
2253                     codec->height = icodec->height;
2254                 }
2255
2256                 ost->video_resample = codec->width   != icodec->width  ||
2257                                       codec->height  != icodec->height ||
2258                                       codec->pix_fmt != icodec->pix_fmt;
2259                 if (ost->video_resample) {
2260                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2261                 }
2262
2263                 ost->resample_height = icodec->height;
2264                 ost->resample_width  = icodec->width;
2265                 ost->resample_pix_fmt= icodec->pix_fmt;
2266
2267                 if (!ost->frame_rate.num)
2268                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2269                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2270                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2271                     ost->frame_rate = ost->enc->supported_framerates[idx];
2272                 }
2273                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2274                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2275                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2276                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2277                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2278                 }
2279                 for (j = 0; j < ost->forced_kf_count; j++)
2280                     ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2281                                                          AV_TIME_BASE_Q,
2282                                                          codec->time_base);
2283
2284 #if CONFIG_AVFILTER
2285                 if (configure_video_filters(ist, ost)) {
2286                     av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2287                     exit(1);
2288                 }
2289 #endif
2290                 break;
2291             case AVMEDIA_TYPE_SUBTITLE:
2292                 break;
2293             default:
2294                 abort();
2295                 break;
2296             }
2297             /* two pass mode */
2298             if (codec->codec_id != CODEC_ID_H264 &&
2299                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2300                 char logfilename[1024];
2301                 FILE *f;
2302
2303                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2304                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2305                          i);
2306                 if (codec->flags & CODEC_FLAG_PASS2) {
2307                     char  *logbuffer;
2308                     size_t logbuffer_size;
2309                     if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2310                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2311                                logfilename);
2312                         exit_program(1);
2313                     }
2314                     codec->stats_in = logbuffer;
2315                 }
2316                 if (codec->flags & CODEC_FLAG_PASS1) {
2317                     f = fopen(logfilename, "wb");
2318                     if (!f) {
2319                         av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2320                                logfilename, strerror(errno));
2321                         exit_program(1);
2322                     }
2323                     ost->logfile = f;
2324                 }
2325             }
2326         }
2327         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2328             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size (1664)*/
2329             int size= codec->width * codec->height;
2330             bit_buffer_size= FFMAX(bit_buffer_size, 7*size + 10000);
2331         }
2332     }
2333
2334     if (!bit_buffer)
2335         bit_buffer = av_malloc(bit_buffer_size);
2336     if (!bit_buffer) {
2337         av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2338                bit_buffer_size);
2339         return AVERROR(ENOMEM);
2340     }
2341
2342     /* open each encoder */
2343     for (i = 0; i < nb_output_streams; i++) {
2344         ost = &output_streams[i];
2345         if (ost->encoding_needed) {
2346             AVCodec *codec = ost->enc;
2347             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2348             if (!codec) {
2349                 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2350                          avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2351                 ret = AVERROR(EINVAL);
2352                 goto dump_format;
2353             }
2354             if (dec->subtitle_header) {
2355                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2356                 if (!ost->st->codec->subtitle_header) {
2357                     ret = AVERROR(ENOMEM);
2358                     goto dump_format;
2359                 }
2360                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2361                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2362             }
2363             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2364                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2365                         ost->file_index, ost->index);
2366                 ret = AVERROR(EINVAL);
2367                 goto dump_format;
2368             }
2369             assert_codec_experimental(ost->st->codec, 1);
2370             assert_avoptions(ost->opts);
2371             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2372                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2373                                              " It takes bits/s as argument, not kbits/s\n");
2374             extra_size += ost->st->codec->extradata_size;
2375
2376             if (ost->st->codec->me_threshold)
2377                 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2378         }
2379     }
2380
2381     /* init input streams */
2382     for (i = 0; i < nb_input_streams; i++)
2383         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2384             goto dump_format;
2385
2386     /* discard unused programs */
2387     for (i = 0; i < nb_input_files; i++) {
2388         InputFile *ifile = &input_files[i];
2389         for (j = 0; j < ifile->ctx->nb_programs; j++) {
2390             AVProgram *p = ifile->ctx->programs[j];
2391             int discard  = AVDISCARD_ALL;
2392
2393             for (k = 0; k < p->nb_stream_indexes; k++)
2394                 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2395                     discard = AVDISCARD_DEFAULT;
2396                     break;
2397                 }
2398             p->discard = discard;
2399         }
2400     }
2401
2402     /* open files and write file headers */
2403     for (i = 0; i < nb_output_files; i++) {
2404         os = output_files[i].ctx;
2405         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2406             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2407             ret = AVERROR(EINVAL);
2408             goto dump_format;
2409         }
2410 //        assert_avoptions(output_files[i].opts);
2411         if (strcmp(os->oformat->name, "rtp")) {
2412             want_sdp = 0;
2413         }
2414     }
2415
2416  dump_format:
2417     /* dump the file output parameters - cannot be done before in case
2418        of stream copy */
2419     for(i=0;i<nb_output_files;i++) {
2420         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2421     }
2422
2423     /* dump the stream mapping */
2424     av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2425     for (i = 0; i < nb_output_streams; i++) {
2426         ost = &output_streams[i];
2427
2428         if (ost->attachment_filename) {
2429             /* an attached file */
2430             av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
2431                    ost->attachment_filename, ost->file_index, ost->index);
2432             continue;
2433         }
2434         av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
2435                input_streams[ost->source_index].file_index,
2436                input_streams[ost->source_index].st->index,
2437                ost->file_index,
2438                ost->index);
2439         if (ost->audio_channels_mapped) {
2440             av_log(NULL, AV_LOG_INFO, " [ch:");
2441             for (j = 0; j < ost->audio_channels_mapped; j++)
2442                 if (ost->audio_channels_map[j] == -1)
2443                     av_log(NULL, AV_LOG_INFO, " M");
2444                 else
2445                     av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]);
2446             av_log(NULL, AV_LOG_INFO, "]");
2447         }
2448         if (ost->sync_ist != &input_streams[ost->source_index])
2449             av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2450                    ost->sync_ist->file_index,
2451                    ost->sync_ist->st->index);
2452         if (ost->stream_copy)
2453             av_log(NULL, AV_LOG_INFO, " (copy)");
2454         else
2455             av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2456                    input_streams[ost->source_index].dec->name : "?",
2457                    ost->enc ? ost->enc->name : "?");
2458         av_log(NULL, AV_LOG_INFO, "\n");
2459     }
2460
2461     if (ret) {
2462         av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2463         return ret;
2464     }
2465
2466     if (want_sdp) {
2467         print_sdp(output_files, nb_output_files);
2468     }
2469
2470     return 0;
2471 }
2472
2473 /*
2474  * The following code is the main loop of the file converter
2475  */
2476 static int transcode(OutputFile *output_files, int nb_output_files,
2477                      InputFile  *input_files,  int nb_input_files)
2478 {
2479     int ret, i;
2480     AVFormatContext *is, *os;
2481     OutputStream *ost;
2482     InputStream *ist;
2483     uint8_t *no_packet;
2484     int no_packet_count=0;
2485     int64_t timer_start;
2486     int key;
2487
2488     if (!(no_packet = av_mallocz(nb_input_files)))
2489         exit_program(1);
2490
2491     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2492     if (ret < 0)
2493         goto fail;
2494
2495     if (!using_stdin) {
2496         av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2497         avio_set_interrupt_cb(decode_interrupt_cb);
2498     }
2499
2500     timer_start = av_gettime();
2501
2502     for(; received_sigterm == 0;) {
2503         int file_index, ist_index;
2504         AVPacket pkt;
2505         int64_t ipts_min;
2506         double opts_min;
2507         int64_t cur_time= av_gettime();
2508
2509         ipts_min= INT64_MAX;
2510         opts_min= 1e100;
2511         /* if 'q' pressed, exits */
2512         if (!using_stdin) {
2513             static int64_t last_time;
2514             if (received_nb_signals)
2515                 break;
2516             /* read_key() returns 0 on EOF */
2517             if(cur_time - last_time >= 100000 && !run_as_daemon){
2518                 key =  read_key();
2519                 last_time = cur_time;
2520             }else
2521                 key = -1;
2522             if (key == 'q')
2523                 break;
2524             if (key == '+') av_log_set_level(av_log_get_level()+10);
2525             if (key == '-') av_log_set_level(av_log_get_level()-10);
2526             if (key == 's') qp_hist     ^= 1;
2527             if (key == 'h'){
2528                 if (do_hex_dump){
2529                     do_hex_dump = do_pkt_dump = 0;
2530                 } else if(do_pkt_dump){
2531                     do_hex_dump = 1;
2532                 } else
2533                     do_pkt_dump = 1;
2534                 av_log_set_level(AV_LOG_DEBUG);
2535             }
2536 #if CONFIG_AVFILTER
2537             if (key == 'c' || key == 'C'){
2538                 char buf[4096], target[64], command[256], arg[256] = {0};
2539                 double time;
2540                 int k, n = 0;
2541                 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2542                 i = 0;
2543                 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2544                     if (k > 0)
2545                         buf[i++] = k;
2546                 buf[i] = 0;
2547                 if (k > 0 &&
2548                     (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2549                     av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2550                            target, time, command, arg);
2551                     for (i = 0; i < nb_output_streams; i++) {
2552                         ost = &output_streams[i];
2553                         if (ost->graph) {
2554                             if (time < 0) {
2555                                 ret = avfilter_graph_send_command(ost->graph, target, command, arg, buf, sizeof(buf),
2556                                                                   key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2557                                 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2558                             } else {
2559                                 ret = avfilter_graph_queue_command(ost->graph, target, command, arg, 0, time);
2560                             }
2561                         }
2562                     }
2563                 } else {
2564                     av_log(NULL, AV_LOG_ERROR,
2565                            "Parse error, at least 3 arguments were expected, "
2566                            "only %d given in string '%s'\n", n, buf);
2567                 }
2568             }
2569 #endif
2570             if (key == 'd' || key == 'D'){
2571                 int debug=0;
2572                 if(key == 'D') {
2573                     debug = input_streams[0].st->codec->debug<<1;
2574                     if(!debug) debug = 1;
2575                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2576                         debug += debug;
2577                 }else
2578                     if(scanf("%d", &debug)!=1)
2579                         fprintf(stderr,"error parsing debug value\n");
2580                 for(i=0;i<nb_input_streams;i++) {
2581                     input_streams[i].st->codec->debug = debug;
2582                 }
2583                 for(i=0;i<nb_output_streams;i++) {
2584                     ost = &output_streams[i];
2585                     ost->st->codec->debug = debug;
2586                 }
2587                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2588                 fprintf(stderr,"debug=%d\n", debug);
2589             }
2590             if (key == '?'){
2591                 fprintf(stderr, "key    function\n"
2592                                 "?      show this help\n"
2593                                 "+      increase verbosity\n"
2594                                 "-      decrease verbosity\n"
2595                                 "c      Send command to filtergraph\n"
2596                                 "D      cycle through available debug modes\n"
2597                                 "h      dump packets/hex press to cycle through the 3 states\n"
2598                                 "q      quit\n"
2599                                 "s      Show QP histogram\n"
2600                 );
2601             }
2602         }
2603
2604         /* select the stream that we must read now by looking at the
2605            smallest output pts */
2606         file_index = -1;
2607         for (i = 0; i < nb_output_streams; i++) {
2608             OutputFile *of;
2609             int64_t ipts;
2610             double  opts;
2611             ost = &output_streams[i];
2612             of = &output_files[ost->file_index];
2613             os = output_files[ost->file_index].ctx;
2614             ist = &input_streams[ost->source_index];
2615             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2616                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2617                 continue;
2618             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2619             ipts = ist->pts;
2620             if (!input_files[ist->file_index].eof_reached){
2621                 if(ipts < ipts_min) {
2622                     ipts_min = ipts;
2623                     if(input_sync ) file_index = ist->file_index;
2624                 }
2625                 if(opts < opts_min) {
2626                     opts_min = opts;
2627                     if(!input_sync) file_index = ist->file_index;
2628                 }
2629             }
2630             if (ost->frame_number >= ost->max_frames) {
2631                 int j;
2632                 for (j = 0; j < of->ctx->nb_streams; j++)
2633                     output_streams[of->ost_index + j].is_past_recording_time = 1;
2634                 continue;
2635             }
2636         }
2637         /* if none, if is finished */
2638         if (file_index < 0) {
2639             if(no_packet_count){
2640                 no_packet_count=0;
2641                 memset(no_packet, 0, nb_input_files);
2642                 usleep(10000);
2643                 continue;
2644             }
2645             break;
2646         }
2647
2648         /* read a frame from it and output it in the fifo */
2649         is = input_files[file_index].ctx;
2650         ret= av_read_frame(is, &pkt);
2651         if(ret == AVERROR(EAGAIN)){
2652             no_packet[file_index]=1;
2653             no_packet_count++;
2654             continue;
2655         }
2656         if (ret < 0) {
2657             input_files[file_index].eof_reached = 1;
2658             if (opt_shortest)
2659                 break;
2660             else
2661                 continue;
2662         }
2663
2664         no_packet_count=0;
2665         memset(no_packet, 0, nb_input_files);
2666
2667         if (do_pkt_dump) {
2668             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2669                              is->streams[pkt.stream_index]);
2670         }
2671         /* the following test is needed in case new streams appear
2672            dynamically in stream : we ignore them */
2673         if (pkt.stream_index >= input_files[file_index].nb_streams)
2674             goto discard_packet;
2675         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2676         ist = &input_streams[ist_index];
2677         if (ist->discard)
2678             goto discard_packet;
2679
2680         if (pkt.dts != AV_NOPTS_VALUE)
2681             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2682         if (pkt.pts != AV_NOPTS_VALUE)
2683             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2684
2685         if(pkt.pts != AV_NOPTS_VALUE)
2686             pkt.pts *= ist->ts_scale;
2687         if(pkt.dts != AV_NOPTS_VALUE)
2688             pkt.dts *= ist->ts_scale;
2689
2690 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2691         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2692             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2693             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2694             int64_t delta= pkt_dts - ist->next_pts;
2695             if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2696                 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2697                  ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2698                 pkt_dts+1<ist->pts)&& !copy_ts){
2699                 input_files[ist->file_index].ts_offset -= delta;
2700                 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2701                        delta, input_files[ist->file_index].ts_offset);
2702                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2703                 if(pkt.pts != AV_NOPTS_VALUE)
2704                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2705             }
2706         }
2707
2708         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2709         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2710
2711             av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2712                    ist->file_index, ist->st->index);
2713             if (exit_on_error)
2714                 exit_program(1);
2715             av_free_packet(&pkt);
2716             continue;
2717         }
2718
2719     discard_packet:
2720         av_free_packet(&pkt);
2721
2722         /* dump report by using the output first video and audio streams */
2723         print_report(output_files, output_streams, nb_output_streams, 0, timer_start, cur_time);
2724     }
2725
2726     /* at the end of stream, we must flush the decoder buffers */
2727     for (i = 0; i < nb_input_streams; i++) {
2728         ist = &input_streams[i];
2729         if (ist->decoding_needed) {
2730             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2731         }
2732     }
2733     flush_encoders(output_streams, nb_output_streams);
2734
2735     term_exit();
2736
2737     /* write the trailer if needed and close file */
2738     for(i=0;i<nb_output_files;i++) {
2739         os = output_files[i].ctx;
2740         av_write_trailer(os);
2741     }
2742
2743     /* dump report by using the first video and audio streams */
2744     print_report(output_files, output_streams, nb_output_streams, 1, timer_start, av_gettime());
2745
2746     /* close each encoder */
2747     for (i = 0; i < nb_output_streams; i++) {
2748         ost = &output_streams[i];
2749         if (ost->encoding_needed) {
2750             av_freep(&ost->st->codec->stats_in);
2751             avcodec_close(ost->st->codec);
2752         }
2753 #if CONFIG_AVFILTER
2754         avfilter_graph_free(&ost->graph);
2755 #endif
2756     }
2757
2758     /* close each decoder */
2759     for (i = 0; i < nb_input_streams; i++) {
2760         ist = &input_streams[i];
2761         if (ist->decoding_needed) {
2762             avcodec_close(ist->st->codec);
2763         }
2764     }
2765
2766     /* finished ! */
2767     ret = 0;
2768
2769  fail:
2770     av_freep(&bit_buffer);
2771     av_freep(&no_packet);
2772
2773     if (output_streams) {
2774         for (i = 0; i < nb_output_streams; i++) {
2775             ost = &output_streams[i];
2776             if (ost) {
2777                 if (ost->stream_copy)
2778                     av_freep(&ost->st->codec->extradata);
2779                 if (ost->logfile) {
2780                     fclose(ost->logfile);
2781                     ost->logfile = NULL;
2782                 }
2783                 av_fifo_free(ost->fifo); /* works even if fifo is not
2784                                              initialized but set to zero */
2785                 av_freep(&ost->st->codec->subtitle_header);
2786                 av_free(ost->resample_frame.data[0]);
2787                 av_free(ost->forced_kf_pts);
2788                 if (ost->video_resample)
2789                     sws_freeContext(ost->img_resample_ctx);
2790                 swr_free(&ost->swr);
2791                 av_dict_free(&ost->opts);
2792             }
2793         }
2794     }
2795     return ret;
2796 }
2797
2798 static int opt_frame_crop(const char *opt, const char *arg)
2799 {
2800     av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
2801     return AVERROR(EINVAL);
2802 }
2803
2804 static int opt_pad(const char *opt, const char *arg)
2805 {
2806     av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
2807     return -1;
2808 }
2809
2810 static double parse_frame_aspect_ratio(const char *arg)
2811 {
2812     int x = 0, y = 0;
2813     double ar = 0;
2814     const char *p;
2815     char *end;
2816
2817     p = strchr(arg, ':');
2818     if (p) {
2819         x = strtol(arg, &end, 10);
2820         if (end == p)
2821             y = strtol(end+1, &end, 10);
2822         if (x > 0 && y > 0)
2823             ar = (double)x / (double)y;
2824     } else
2825         ar = strtod(arg, NULL);
2826
2827     if (!ar) {
2828         av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2829         exit_program(1);
2830     }
2831     return ar;
2832 }
2833
2834 static int opt_video_channel(const char *opt, const char *arg)
2835 {
2836     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2837     return opt_default("channel", arg);
2838 }
2839
2840 static int opt_video_standard(const char *opt, const char *arg)
2841 {
2842     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2843     return opt_default("standard", arg);
2844 }
2845
2846 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2847 {
2848     audio_codec_name = arg;
2849     return parse_option(o, "codec:a", arg, options);
2850 }
2851
2852 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2853 {
2854     video_codec_name = arg;
2855     return parse_option(o, "codec:v", arg, options);
2856 }
2857
2858 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2859 {
2860     subtitle_codec_name = arg;
2861     return parse_option(o, "codec:s", arg, options);
2862 }
2863
2864 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2865 {
2866     return parse_option(o, "codec:d", arg, options);
2867 }
2868
2869 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2870 {
2871     StreamMap *m = NULL;
2872     int i, negative = 0, file_idx;
2873     int sync_file_idx = -1, sync_stream_idx;
2874     char *p, *sync;
2875     char *map;
2876
2877     if (*arg == '-') {
2878         negative = 1;
2879         arg++;
2880     }
2881     map = av_strdup(arg);
2882
2883     /* parse sync stream first, just pick first matching stream */
2884     if (sync = strchr(map, ',')) {
2885         *sync = 0;
2886         sync_file_idx = strtol(sync + 1, &sync, 0);
2887         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2888             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2889             exit_program(1);
2890         }
2891         if (*sync)
2892             sync++;
2893         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2894             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2895                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2896                 sync_stream_idx = i;
2897                 break;
2898             }
2899         if (i == input_files[sync_file_idx].nb_streams) {
2900             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2901                                        "match any streams.\n", arg);
2902             exit_program(1);
2903         }
2904     }
2905
2906
2907     file_idx = strtol(map, &p, 0);
2908     if (file_idx >= nb_input_files || file_idx < 0) {
2909         av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2910         exit_program(1);
2911     }
2912     if (negative)
2913         /* disable some already defined maps */
2914         for (i = 0; i < o->nb_stream_maps; i++) {
2915             m = &o->stream_maps[i];
2916             if (file_idx == m->file_index &&
2917                 check_stream_specifier(input_files[m->file_index].ctx,
2918                                        input_files[m->file_index].ctx->streams[m->stream_index],
2919                                        *p == ':' ? p + 1 : p) > 0)
2920                 m->disabled = 1;
2921         }
2922     else
2923         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2924             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2925                         *p == ':' ? p + 1 : p) <= 0)
2926                 continue;
2927             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2928                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2929             m = &o->stream_maps[o->nb_stream_maps - 1];
2930
2931             m->file_index   = file_idx;
2932             m->stream_index = i;
2933
2934             if (sync_file_idx >= 0) {
2935                 m->sync_file_index   = sync_file_idx;
2936                 m->sync_stream_index = sync_stream_idx;
2937             } else {
2938                 m->sync_file_index   = file_idx;
2939                 m->sync_stream_index = i;
2940             }
2941         }
2942
2943     if (!m) {
2944         av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2945         exit_program(1);
2946     }
2947
2948     av_freep(&map);
2949     return 0;
2950 }
2951
2952 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2953 {
2954     o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2955                                 &o->nb_attachments, o->nb_attachments + 1);
2956     o->attachments[o->nb_attachments - 1] = arg;
2957     return 0;
2958 }
2959
2960 static int opt_map_channel(OptionsContext *o, const char *opt, const char *arg)
2961 {
2962     int n;
2963     AVStream *st;
2964     AudioChannelMap *m;
2965
2966     o->audio_channel_maps =
2967         grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
2968                    &o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
2969     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
2970
2971     /* muted channel syntax */
2972     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
2973     if ((n == 1 || n == 3) && m->channel_idx == -1) {
2974         m->file_idx = m->stream_idx = -1;
2975         if (n == 1)
2976             m->ofile_idx = m->ostream_idx = -1;
2977         return 0;
2978     }
2979
2980     /* normal syntax */
2981     n = sscanf(arg, "%d.%d.%d:%d.%d",
2982                &m->file_idx,  &m->stream_idx, &m->channel_idx,
2983                &m->ofile_idx, &m->ostream_idx);
2984
2985     if (n != 3 && n != 5) {
2986         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
2987                "[file.stream.channel|-1][:syncfile:syncstream]\n");
2988         exit_program(1);
2989     }
2990
2991     if (n != 5) // only file.stream.channel specified
2992         m->ofile_idx = m->ostream_idx = -1;
2993
2994     /* check input */
2995     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
2996         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
2997                m->file_idx);
2998         exit_program(1);
2999     }
3000     if (m->stream_idx < 0 ||
3001         m->stream_idx >= input_files[m->file_idx].nb_streams) {
3002         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
3003                m->file_idx, m->stream_idx);
3004         exit_program(1);
3005     }
3006     st = input_files[m->file_idx].ctx->streams[m->stream_idx];
3007     if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
3008         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
3009                m->file_idx, m->stream_idx);
3010         exit_program(1);
3011     }
3012     if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
3013         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
3014                m->file_idx, m->stream_idx, m->channel_idx);
3015         exit_program(1);
3016     }
3017     return 0;
3018 }
3019
3020 static void parse_meta_type(char *arg, char *type, int *index)
3021 {
3022     if (*arg) {
3023         *type = *arg;
3024         switch (*arg) {
3025         case 'g':
3026             break;
3027         case 's':
3028         case 'c':
3029         case 'p':
3030             if (*(++arg) == ':')
3031                 *index = strtol(++arg, NULL, 0);
3032             break;
3033         default:
3034             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3035             exit_program(1);
3036         }
3037     } else
3038         *type = 'g';
3039 }
3040
3041 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
3042 {
3043     MetadataMap *m, *m1;
3044     char *p;
3045
3046     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
3047                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
3048
3049     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
3050     m->file = strtol(arg, &p, 0);
3051     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
3052
3053     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
3054     if (p = strchr(opt, ':'))
3055         parse_meta_type(p + 1, &m1->type, &m1->index);
3056     else
3057         m1->type = 'g';
3058
3059     if (m->type == 'g' || m1->type == 'g')
3060         o->metadata_global_manual = 1;
3061     if (m->type == 's' || m1->type == 's')
3062         o->metadata_streams_manual = 1;
3063     if (m->type == 'c' || m1->type == 'c')
3064         o->metadata_chapters_manual = 1;
3065
3066     return 0;
3067 }
3068
3069 static int opt_map_meta_data(OptionsContext *o, const char *opt, const char *arg)
3070 {
3071     av_log(NULL, AV_LOG_WARNING, "-map_meta_data is deprecated and will be removed soon. "
3072                     "Use -map_metadata instead.\n");
3073     return opt_map_metadata(o, opt, arg);
3074 }
3075
3076 static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
3077 {
3078     char buf[128];
3079     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3080     struct tm time = *gmtime((time_t*)&recording_timestamp);
3081     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3082     parse_option(o, "metadata", buf, options);
3083
3084     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3085                                  "tag instead.\n", opt);
3086     return 0;
3087 }
3088
3089 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3090 {
3091     const char *codec_string = encoder ? "encoder" : "decoder";
3092     AVCodec *codec;
3093
3094     codec = encoder ?
3095         avcodec_find_encoder_by_name(name) :
3096         avcodec_find_decoder_by_name(name);
3097     if(!codec) {
3098         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3099         exit_program(1);
3100     }
3101     if(codec->type != type) {
3102         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3103         exit_program(1);
3104     }
3105     return codec;
3106 }
3107
3108 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3109 {
3110     char *codec_name = NULL;
3111
3112     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3113     if (codec_name) {
3114         AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3115         st->codec->codec_id = codec->id;
3116         return codec;
3117     } else
3118         return avcodec_find_decoder(st->codec->codec_id);
3119 }
3120
3121 /**
3122  * Add all the streams from the given input file to the global
3123  * list of input streams.
3124  */
3125 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3126 {
3127     int i, rfps, rfps_base;
3128     char *next, *codec_tag = NULL;
3129
3130     for (i = 0; i < ic->nb_streams; i++) {
3131         AVStream *st = ic->streams[i];
3132         AVCodecContext *dec = st->codec;
3133         InputStream *ist;
3134
3135         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3136         ist = &input_streams[nb_input_streams - 1];
3137         ist->st = st;
3138         ist->file_index = nb_input_files;
3139         ist->discard = 1;
3140         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3141
3142         ist->ts_scale = 1.0;
3143         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3144
3145         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
3146         if (codec_tag) {
3147             uint32_t tag = strtol(codec_tag, &next, 0);
3148             if (*next)
3149                 tag = AV_RL32(codec_tag);
3150             st->codec->codec_tag = tag;
3151         }
3152
3153         ist->dec = choose_decoder(o, ic, st);
3154
3155         switch (dec->codec_type) {
3156         case AVMEDIA_TYPE_AUDIO:
3157             if(!ist->dec)
3158                 ist->dec = avcodec_find_decoder(dec->codec_id);
3159             if(o->audio_disable)
3160                 st->discard= AVDISCARD_ALL;
3161             break;
3162         case AVMEDIA_TYPE_VIDEO:
3163             if(!ist->dec)
3164                 ist->dec = avcodec_find_decoder(dec->codec_id);
3165             rfps      = ic->streams[i]->r_frame_rate.num;
3166             rfps_base = ic->streams[i]->r_frame_rate.den;
3167             if (dec->lowres) {
3168                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3169             }
3170
3171             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3172
3173                 av_log(NULL, AV_LOG_INFO,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3174                        i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3175                        (float)rfps / rfps_base, rfps, rfps_base);
3176             }
3177
3178             if (o->video_disable)
3179                 st->discard= AVDISCARD_ALL;
3180             else if(video_discard)
3181                 st->discard= video_discard;
3182             break;
3183         case AVMEDIA_TYPE_DATA:
3184             break;
3185         case AVMEDIA_TYPE_SUBTITLE:
3186             if(!ist->dec)
3187                 ist->dec = avcodec_find_decoder(dec->codec_id);
3188             if(o->subtitle_disable)
3189                 st->discard = AVDISCARD_ALL;
3190             break;
3191         case AVMEDIA_TYPE_ATTACHMENT:
3192         case AVMEDIA_TYPE_UNKNOWN:
3193             break;
3194         default:
3195             abort();
3196         }
3197     }
3198 }
3199
3200 static void assert_file_overwrite(const char *filename)
3201 {
3202     if (!file_overwrite &&
3203         (strchr(filename, ':') == NULL || filename[1] == ':' ||
3204          av_strstart(filename, "file:", NULL))) {
3205         if (avio_check(filename, 0) == 0) {
3206             if (!using_stdin) {
3207                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3208                 fflush(stderr);
3209                 term_exit();
3210                 if (!read_yesno()) {
3211                     av_log(0, AV_LOG_FATAL, "Not overwriting - exiting\n");
3212                     exit_program(1);
3213                 }
3214                 term_init();
3215             }
3216             else {
3217                 av_log(0, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
3218                 exit_program(1);
3219             }
3220         }
3221     }
3222 }
3223
3224 static void dump_attachment(AVStream *st, const char *filename)
3225 {
3226     int ret;
3227     AVIOContext *out = NULL;
3228     AVDictionaryEntry *e;
3229
3230     if (!st->codec->extradata_size) {
3231         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3232                nb_input_files - 1, st->index);
3233         return;
3234     }
3235     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3236         filename = e->value;
3237     if (!*filename) {
3238         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3239                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3240         exit_program(1);
3241     }
3242
3243     assert_file_overwrite(filename);
3244
3245     if ((ret = avio_open (&out, filename, AVIO_FLAG_WRITE)) < 0) {
3246         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3247                filename);
3248         exit_program(1);
3249     }
3250
3251     avio_write(out, st->codec->extradata, st->codec->extradata_size);
3252     avio_flush(out);
3253     avio_close(out);
3254 }
3255
3256 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3257 {
3258     AVFormatContext *ic;
3259     AVInputFormat *file_iformat = NULL;
3260     int err, i, ret;
3261     int64_t timestamp;
3262     uint8_t buf[128];
3263     AVDictionary **opts;
3264     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3265
3266     if (o->format) {
3267         if (!(file_iformat = av_find_input_format(o->format))) {
3268             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3269             exit_program(1);
3270         }
3271     }
3272
3273     if (!strcmp(filename, "-"))
3274         filename = "pipe:";
3275
3276     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3277                     !strcmp(filename, "/dev/stdin");
3278
3279     /* get default parameters from command line */
3280     ic = avformat_alloc_context();
3281     if (!ic) {
3282         print_error(filename, AVERROR(ENOMEM));
3283         exit_program(1);
3284     }
3285     if (o->nb_audio_sample_rate) {
3286         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3287         av_dict_set(&format_opts, "sample_rate", buf, 0);
3288     }
3289     if (o->nb_audio_channels) {
3290         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3291         av_dict_set(&format_opts, "channels", buf, 0);
3292     }
3293     if (o->nb_frame_rates) {
3294         av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3295     }
3296     if (o->nb_frame_sizes) {
3297         av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3298     }
3299     if (o->nb_frame_pix_fmts)
3300         av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3301
3302     ic->video_codec_id   = video_codec_name ?
3303         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : CODEC_ID_NONE;
3304     ic->audio_codec_id   = audio_codec_name ?
3305         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : CODEC_ID_NONE;
3306     ic->subtitle_codec_id= subtitle_codec_name ?
3307         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : CODEC_ID_NONE;
3308     ic->flags |= AVFMT_FLAG_NONBLOCK;
3309
3310     if (loop_input) {
3311         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3312         ic->loop_input = loop_input;
3313     }
3314
3315     /* open the input file with generic libav function */
3316     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3317     if (err < 0) {
3318         print_error(filename, err);
3319         exit_program(1);
3320     }
3321     assert_avoptions(format_opts);
3322
3323     /* apply forced codec ids */
3324     for (i = 0; i < ic->nb_streams; i++)
3325         choose_decoder(o, ic, ic->streams[i]);
3326
3327     /* Set AVCodecContext options for avformat_find_stream_info */
3328     opts = setup_find_stream_info_opts(ic, codec_opts);
3329     orig_nb_streams = ic->nb_streams;
3330
3331     /* If not enough info to get the stream parameters, we decode the
3332        first frames to get it. (used in mpeg case for example) */
3333     ret = avformat_find_stream_info(ic, opts);
3334     if (ret < 0) {
3335         av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3336         av_close_input_file(ic);
3337         exit_program(1);
3338     }
3339
3340     timestamp = o->start_time;
3341     /* add the stream start time */
3342     if (ic->start_time != AV_NOPTS_VALUE)
3343         timestamp += ic->start_time;
3344
3345     /* if seeking requested, we execute it */
3346     if (o->start_time != 0) {
3347         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3348         if (ret < 0) {
3349             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3350                    filename, (double)timestamp / AV_TIME_BASE);
3351         }
3352     }
3353
3354     /* update the current parameters so that they match the one of the input stream */
3355     add_input_streams(o, ic);
3356
3357     /* dump the file content */
3358     av_dump_format(ic, nb_input_files, filename, 0);
3359
3360     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3361     input_files[nb_input_files - 1].ctx        = ic;
3362     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3363     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3364     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3365     input_files[nb_input_files - 1].rate_emu   = o->rate_emu;
3366
3367     for (i = 0; i < o->nb_dump_attachment; i++) {
3368         int j;
3369
3370         for (j = 0; j < ic->nb_streams; j++) {
3371             AVStream *st = ic->streams[j];
3372
3373             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3374                 dump_attachment(st, o->dump_attachment[i].u.str);
3375         }
3376     }
3377
3378     for (i = 0; i < orig_nb_streams; i++)
3379         av_dict_free(&opts[i]);
3380     av_freep(&opts);
3381
3382     reset_options(o, 1);
3383     return 0;
3384 }
3385
3386 static void parse_forced_key_frames(char *kf, OutputStream *ost)
3387 {
3388     char *p;
3389     int n = 1, i;
3390
3391     for (p = kf; *p; p++)
3392         if (*p == ',')
3393             n++;
3394     ost->forced_kf_count = n;
3395     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3396     if (!ost->forced_kf_pts) {
3397         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3398         exit_program(1);
3399     }
3400     for (i = 0; i < n; i++) {
3401         p = i ? strchr(p, ',') + 1 : kf;
3402         ost->forced_kf_pts[i] = parse_time_or_die("force_key_frames", p, 1);
3403     }
3404 }
3405
3406 static uint8_t *get_line(AVIOContext *s)
3407 {
3408     AVIOContext *line;
3409     uint8_t *buf;
3410     char c;
3411
3412     if (avio_open_dyn_buf(&line) < 0) {
3413         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3414         exit_program(1);
3415     }
3416
3417     while ((c = avio_r8(s)) && c != '\n')
3418         avio_w8(line, c);
3419     avio_w8(line, 0);
3420     avio_close_dyn_buf(line, &buf);
3421
3422     return buf;
3423 }
3424
3425 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3426 {
3427     int i, ret = 1;
3428     char filename[1000];
3429     const char *base[3] = { getenv("AVCONV_DATADIR"),
3430                             getenv("HOME"),
3431                             AVCONV_DATADIR,
3432                             };
3433
3434     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3435         if (!base[i])
3436             continue;
3437         if (codec_name) {
3438             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3439                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
3440             ret = avio_open(s, filename, AVIO_FLAG_READ);
3441         }
3442         if (ret) {
3443             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3444                      i != 1 ? "" : "/.avconv", preset_name);
3445             ret = avio_open(s, filename, AVIO_FLAG_READ);
3446         }
3447     }
3448     return ret;
3449 }
3450
3451 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3452 {
3453     char *codec_name = NULL;
3454
3455     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3456     if (!codec_name) {
3457         ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3458                                                   NULL, ost->st->codec->codec_type);
3459         ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3460     } else if (!strcmp(codec_name, "copy"))
3461         ost->stream_copy = 1;
3462     else {
3463         ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3464         ost->st->codec->codec_id = ost->enc->id;
3465     }
3466 }
3467
3468 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3469 {
3470     OutputStream *ost;
3471     AVStream *st = avformat_new_stream(oc, NULL);
3472     int idx      = oc->nb_streams - 1, ret = 0;
3473     char *bsf = NULL, *next, *codec_tag = NULL;
3474     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3475     double qscale = -1;
3476     char *buf = NULL, *arg = NULL, *preset = NULL;
3477     AVIOContext *s = NULL;
3478
3479     if (!st) {
3480         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3481         exit_program(1);
3482     }
3483
3484     if (oc->nb_streams - 1 < o->nb_streamid_map)
3485         st->id = o->streamid_map[oc->nb_streams - 1];
3486
3487     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3488                                 nb_output_streams + 1);
3489     ost = &output_streams[nb_output_streams - 1];
3490     ost->file_index = nb_output_files;
3491     ost->index = idx;
3492     ost->st    = st;
3493     st->codec->codec_type = type;
3494     choose_encoder(o, oc, ost);
3495     if (ost->enc) {
3496         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3497     }
3498
3499     avcodec_get_context_defaults3(st->codec, ost->enc);
3500     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3501
3502     MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3503     if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3504         do  {
3505             buf = get_line(s);
3506             if (!buf[0] || buf[0] == '#') {
3507                 av_free(buf);
3508                 continue;
3509             }
3510             if (!(arg = strchr(buf, '='))) {
3511                 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3512                 exit_program(1);
3513             }
3514             *arg++ = 0;
3515             av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3516             av_free(buf);
3517         } while (!s->eof_reached);
3518         avio_close(s);
3519     }
3520     if (ret) {
3521         av_log(NULL, AV_LOG_FATAL,
3522                "Preset %s specified for stream %d:%d, but could not be opened.\n",
3523                preset, ost->file_index, ost->index);
3524         exit_program(1);
3525     }
3526
3527     ost->max_frames = INT64_MAX;
3528     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3529
3530     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3531     while (bsf) {
3532         if (next = strchr(bsf, ','))
3533             *next++ = 0;
3534         if (!(bsfc = av_bitstream_filter_init(bsf))) {
3535             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3536             exit_program(1);
3537         }
3538         if (bsfc_prev)
3539             bsfc_prev->next = bsfc;
3540         else
3541             ost->bitstream_filters = bsfc;
3542
3543         bsfc_prev = bsfc;
3544         bsf       = next;
3545     }
3546
3547     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3548     if (codec_tag) {
3549         uint32_t tag = strtol(codec_tag, &next, 0);
3550         if (*next)
3551             tag = AV_RL32(codec_tag);
3552         st->codec->codec_tag = tag;
3553     }
3554
3555     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3556     if (qscale >= 0 || same_quant) {
3557         st->codec->flags |= CODEC_FLAG_QSCALE;
3558         st->codec->global_quality = FF_QP2LAMBDA * qscale;
3559     }
3560
3561     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3562         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3563
3564     av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3565     return ost;
3566 }
3567
3568 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3569 {
3570     int i;
3571     const char *p = str;
3572     for(i = 0;; i++) {
3573         dest[i] = atoi(p);
3574         if(i == 63)
3575             break;
3576         p = strchr(p, ',');
3577         if(!p) {
3578             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3579             exit_program(1);
3580         }
3581         p++;
3582     }
3583 }
3584
3585 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3586 {
3587     AVStream *st;
3588     OutputStream *ost;
3589     AVCodecContext *video_enc;
3590
3591     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3592     st  = ost->st;
3593     video_enc = st->codec;
3594
3595     if (!ost->stream_copy) {
3596         const char *p = NULL;
3597         char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3598         char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3599         char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3600         int i;
3601
3602         MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3603         if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3604             av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3605             exit_program(1);
3606         }
3607
3608         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3609         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3610             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3611             exit_program(1);
3612         }
3613
3614         MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3615         if (frame_aspect_ratio)
3616             ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3617
3618         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3619         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3620         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3621             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3622             exit_program(1);
3623         }
3624         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3625
3626         if (intra_only)
3627             video_enc->gop_size = 0;
3628         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3629         if (intra_matrix) {
3630             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3631                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3632                 exit_program(1);
3633             }
3634             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3635         }
3636         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3637         if (inter_matrix) {
3638             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3639                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3640                 exit_program(1);
3641             }
3642             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3643         }
3644
3645         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3646         for(i=0; p; i++){
3647             int start, end, q;
3648             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3649             if(e!=3){
3650                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3651                 exit_program(1);
3652             }
3653             /* FIXME realloc failure */
3654             video_enc->rc_override=
3655                 av_realloc(video_enc->rc_override,
3656                            sizeof(RcOverride)*(i+1));
3657             video_enc->rc_override[i].start_frame= start;
3658             video_enc->rc_override[i].end_frame  = end;
3659             if(q>0){
3660                 video_enc->rc_override[i].qscale= q;
3661                 video_enc->rc_override[i].quality_factor= 1.0;
3662             }
3663             else{
3664                 video_enc->rc_override[i].qscale= 0;
3665                 video_enc->rc_override[i].quality_factor= -q/100.0;
3666             }
3667             p= strchr(p, '/');
3668             if(p) p++;
3669         }
3670         video_enc->rc_override_count=i;
3671         if (!video_enc->rc_initial_buffer_occupancy)
3672             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3673         video_enc->intra_dc_precision= intra_dc_precision - 8;
3674
3675         if (do_psnr)
3676             video_enc->flags|= CODEC_FLAG_PSNR;
3677
3678         /* two pass mode */
3679         if (do_pass) {
3680             if (do_pass & 1) {
3681                 video_enc->flags |= CODEC_FLAG_PASS1;
3682             }
3683             if (do_pass & 2) {
3684                 video_enc->flags |= CODEC_FLAG_PASS2;
3685             }
3686         }
3687
3688         MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3689         if (forced_key_frames)
3690             parse_forced_key_frames(forced_key_frames, ost);
3691
3692         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3693
3694         ost->top_field_first = -1;
3695         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3696
3697         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3698
3699 #if CONFIG_AVFILTER
3700         MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3701         if (filters)
3702             ost->avfilter = av_strdup(filters);
3703 #endif
3704     }
3705
3706     return ost;
3707 }
3708
3709 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3710 {
3711     int n;
3712     AVStream *st;
3713     OutputStream *ost;
3714     AVCodecContext *audio_enc;
3715
3716     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3717     st  = ost->st;
3718
3719     audio_enc = st->codec;
3720     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3721
3722     if (!ost->stream_copy) {
3723         char *sample_fmt = NULL;
3724
3725         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3726
3727         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3728         if (sample_fmt &&
3729             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3730             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3731             exit_program(1);
3732         }
3733
3734         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3735
3736         ost->rematrix_volume=1.0;
3737         MATCH_PER_STREAM_OPT(rematrix_volume, f, ost->rematrix_volume, oc, st);
3738     }
3739
3740     /* check for channel mapping for this audio stream */
3741     for (n = 0; n < o->nb_audio_channel_maps; n++) {
3742         AudioChannelMap *map = &o->audio_channel_maps[n];
3743         InputStream *ist = &input_streams[ost->source_index];
3744         if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
3745             (map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
3746             (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
3747             if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
3748                 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
3749             else
3750                 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
3751                        ost->file_index, ost->st->index);
3752         }
3753     }
3754
3755     return ost;
3756 }
3757
3758 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3759 {
3760     OutputStream *ost;
3761
3762     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3763     if (!ost->stream_copy) {
3764         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3765         exit_program(1);
3766     }
3767
3768     return ost;
3769 }
3770
3771 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3772 {
3773     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3774     ost->stream_copy = 1;
3775     return ost;
3776 }
3777
3778 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3779 {
3780     AVStream *st;
3781     OutputStream *ost;
3782     AVCodecContext *subtitle_enc;
3783
3784     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3785     st  = ost->st;
3786     subtitle_enc = st->codec;
3787
3788     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3789
3790     return ost;
3791 }
3792
3793 /* arg format is "output-stream-index:streamid-value". */
3794 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
3795 {
3796     int idx;
3797     char *p;
3798     char idx_str[16];
3799
3800     av_strlcpy(idx_str, arg, sizeof(idx_str));
3801     p = strchr(idx_str, ':');
3802     if (!p) {
3803         av_log(NULL, AV_LOG_FATAL,
3804                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3805                arg, opt);
3806         exit_program(1);
3807     }
3808     *p++ = '\0';
3809     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3810     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
3811     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3812     return 0;
3813 }
3814
3815 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3816 {
3817     AVFormatContext *is = ifile->ctx;
3818     AVFormatContext *os = ofile->ctx;
3819     int i;
3820
3821     for (i = 0; i < is->nb_chapters; i++) {
3822         AVChapter *in_ch = is->chapters[i], *out_ch;
3823         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
3824                                       AV_TIME_BASE_Q, in_ch->time_base);
3825         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3826                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3827
3828
3829         if (in_ch->end < ts_off)
3830             continue;
3831         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3832             break;
3833
3834         out_ch = av_mallocz(sizeof(AVChapter));
3835         if (!out_ch)
3836             return AVERROR(ENOMEM);
3837
3838         out_ch->id        = in_ch->id;
3839         out_ch->time_base = in_ch->time_base;
3840         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3841         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3842
3843         if (copy_metadata)
3844             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3845
3846         os->nb_chapters++;
3847         os->chapters = av_realloc_f(os->chapters, os->nb_chapters, sizeof(AVChapter));
3848         if (!os->chapters)
3849             return AVERROR(ENOMEM);
3850         os->chapters[os->nb_chapters - 1] = out_ch;
3851     }
3852     return 0;
3853 }
3854
3855 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3856 {
3857     int i, err;
3858     AVFormatContext *ic = NULL;
3859
3860     err = avformat_open_input(&ic, filename, NULL, NULL);
3861     if (err < 0)
3862         return err;
3863     /* copy stream format */
3864     for(i=0;i<ic->nb_streams;i++) {
3865         AVStream *st;
3866         OutputStream *ost;
3867         AVCodec *codec;
3868         AVCodecContext *avctx;
3869
3870         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3871         ost   = new_output_stream(o, s, codec->type);
3872         st    = ost->st;
3873         avctx = st->codec;
3874
3875         // FIXME: a more elegant solution is needed
3876         memcpy(st, ic->streams[i], sizeof(AVStream));
3877         st->info = av_malloc(sizeof(*st->info));
3878         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3879         st->codec= avctx;
3880         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3881
3882         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
3883             choose_sample_fmt(st, codec);
3884         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
3885             choose_pixel_fmt(st, codec);
3886     }
3887
3888     av_close_input_file(ic);
3889     return 0;
3890 }
3891
3892 static void opt_output_file(void *optctx, const char *filename)
3893 {
3894     OptionsContext *o = optctx;
3895     AVFormatContext *oc;
3896     int i, err;
3897     AVOutputFormat *file_oformat;
3898     OutputStream *ost;
3899     InputStream  *ist;
3900
3901     if (!strcmp(filename, "-"))
3902         filename = "pipe:";
3903
3904     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
3905     if (!oc) {
3906         print_error(filename, err);
3907         exit_program(1);
3908     }
3909     file_oformat= oc->oformat;
3910
3911     if (!strcmp(file_oformat->name, "ffm") &&
3912         av_strstart(filename, "http:", NULL)) {
3913         int j;
3914         /* special case for files sent to ffserver: we get the stream
3915            parameters from ffserver */
3916         int err = read_ffserver_streams(o, oc, filename);
3917         if (err < 0) {
3918             print_error(filename, err);
3919             exit_program(1);
3920         }
3921         for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
3922             ost = &output_streams[j];
3923             for (i = 0; i < nb_input_streams; i++) {
3924                 ist = &input_streams[i];
3925                 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
3926                     ost->sync_ist= ist;
3927                     ost->source_index= i;
3928                     ist->discard = 0;
3929                     break;
3930                 }
3931             }
3932         }
3933     } else if (!o->nb_stream_maps) {
3934         /* pick the "best" stream of each type */
3935 #define NEW_STREAM(type, index)\
3936         if (index >= 0) {\
3937             ost = new_ ## type ## _stream(o, oc);\
3938             ost->source_index = index;\
3939             ost->sync_ist     = &input_streams[index];\
3940             input_streams[index].discard = 0;\
3941         }
3942
3943         /* video: highest resolution */
3944         if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3945             int area = 0, idx = -1;
3946             for (i = 0; i < nb_input_streams; i++) {
3947                 ist = &input_streams[i];
3948                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3949                     ist->st->codec->width * ist->st->codec->height > area) {
3950                     area = ist->st->codec->width * ist->st->codec->height;
3951                     idx = i;
3952                 }
3953             }
3954             NEW_STREAM(video, idx);
3955         }
3956
3957         /* audio: most channels */
3958         if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3959             int channels = 0, idx = -1;
3960             for (i = 0; i < nb_input_streams; i++) {
3961                 ist = &input_streams[i];
3962                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3963                     ist->st->codec->channels > channels) {
3964                     channels = ist->st->codec->channels;
3965                     idx = i;
3966                 }
3967             }
3968             NEW_STREAM(audio, idx);
3969         }
3970
3971         /* subtitles: pick first */
3972         if (!o->subtitle_disable && (oc->oformat->subtitle_codec != CODEC_ID_NONE || subtitle_codec_name)) {
3973             for (i = 0; i < nb_input_streams; i++)
3974                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3975                     NEW_STREAM(subtitle, i);
3976                     break;
3977                 }
3978         }
3979         /* do something with data? */
3980     } else {
3981         for (i = 0; i < o->nb_stream_maps; i++) {
3982             StreamMap *map = &o->stream_maps[i];
3983
3984             if (map->disabled)
3985                 continue;
3986
3987             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3988             if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
3989                 continue;
3990             if(o->   audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3991                 continue;
3992             if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3993                 continue;
3994
3995             switch (ist->st->codec->codec_type) {
3996             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
3997             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(o, oc);    break;
3998             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3999             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(o, oc);     break;
4000             case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
4001             default:
4002                 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
4003                        map->file_index, map->stream_index);
4004                 exit_program(1);
4005             }
4006
4007             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
4008             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
4009                                            map->sync_stream_index];
4010             ist->discard = 0;
4011         }
4012     }
4013
4014     /* handle attached files */
4015     for (i = 0; i < o->nb_attachments; i++) {
4016         AVIOContext *pb;
4017         uint8_t *attachment;
4018         const char *p;
4019         int64_t len;
4020
4021         if ((err = avio_open(&pb, o->attachments[i], AVIO_FLAG_READ)) < 0) {
4022             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
4023                    o->attachments[i]);
4024             exit_program(1);
4025         }
4026         if ((len = avio_size(pb)) <= 0) {
4027             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
4028                    o->attachments[i]);
4029             exit_program(1);
4030         }
4031         if (!(attachment = av_malloc(len))) {
4032             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
4033                    o->attachments[i]);
4034             exit_program(1);
4035         }
4036         avio_read(pb, attachment, len);
4037
4038         ost = new_attachment_stream(o, oc);
4039         ost->stream_copy               = 0;
4040         ost->source_index              = -1;
4041         ost->attachment_filename       = o->attachments[i];
4042         ost->st->codec->extradata      = attachment;
4043         ost->st->codec->extradata_size = len;
4044
4045         p = strrchr(o->attachments[i], '/');
4046         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
4047         avio_close(pb);
4048     }
4049
4050     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
4051     output_files[nb_output_files - 1].ctx       = oc;
4052     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
4053     output_files[nb_output_files - 1].recording_time = o->recording_time;
4054     output_files[nb_output_files - 1].start_time     = o->start_time;
4055     output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
4056     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
4057
4058     /* check filename in case of an image number is expected */
4059     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
4060         if (!av_filename_number_test(oc->filename)) {
4061             print_error(oc->filename, AVERROR(EINVAL));
4062             exit_program(1);
4063         }
4064     }
4065
4066     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
4067         /* test if it already exists to avoid loosing precious files */
4068         assert_file_overwrite(filename);
4069
4070         /* open the file */
4071         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
4072             print_error(filename, err);
4073             exit_program(1);
4074         }
4075     }
4076
4077     if (o->mux_preload) {
4078         uint8_t buf[64];
4079         snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
4080         av_dict_set(&output_files[nb_output_files - 1].opts, "preload", buf, 0);
4081     }
4082     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
4083
4084     if (loop_output >= 0) {
4085         av_log(NULL, AV_LOG_WARNING, "-loop_output is deprecated, use -loop\n");
4086         oc->loop_output = loop_output;
4087     }
4088
4089     /* copy chapters */
4090     if (o->chapters_input_file >= nb_input_files) {
4091         if (o->chapters_input_file == INT_MAX) {
4092             /* copy chapters from the first input file that has them*/
4093             o->chapters_input_file = -1;
4094             for (i = 0; i < nb_input_files; i++)
4095                 if (input_files[i].ctx->nb_chapters) {
4096                     o->chapters_input_file = i;
4097                     break;
4098                 }
4099         } else {
4100             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
4101                    o->chapters_input_file);
4102             exit_program(1);
4103         }
4104     }
4105     if (o->chapters_input_file >= 0)
4106         copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
4107                       !o->metadata_chapters_manual);
4108
4109     /* copy metadata */
4110     for (i = 0; i < o->nb_meta_data_maps; i++) {
4111         AVFormatContext *files[2];
4112         AVDictionary    **meta[2];
4113         int j;
4114
4115 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
4116         if ((index) < 0 || (index) >= (nb_elems)) {\
4117             av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps\n",\
4118                      (desc), (index));\
4119             exit_program(1);\
4120         }
4121
4122         int in_file_index = o->meta_data_maps[i][1].file;
4123         if (in_file_index < 0)
4124             continue;
4125         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
4126
4127         files[0] = oc;
4128         files[1] = input_files[in_file_index].ctx;
4129
4130         for (j = 0; j < 2; j++) {
4131             MetadataMap *map = &o->meta_data_maps[i][j];
4132
4133             switch (map->type) {
4134             case 'g':
4135                 meta[j] = &files[j]->metadata;
4136                 break;
4137             case 's':
4138                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
4139                 meta[j] = &files[j]->streams[map->index]->metadata;
4140                 break;
4141             case 'c':
4142                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
4143                 meta[j] = &files[j]->chapters[map->index]->metadata;
4144                 break;
4145             case 'p':
4146                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
4147                 meta[j] = &files[j]->programs[map->index]->metadata;
4148                 break;
4149             default:
4150                 abort();
4151             }
4152         }
4153
4154         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
4155     }
4156
4157     /* copy global metadata by default */
4158     if (!o->metadata_global_manual && nb_input_files){
4159         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
4160                      AV_DICT_DONT_OVERWRITE);
4161         if(o->recording_time != INT64_MAX)
4162             av_dict_set(&oc->metadata, "duration", NULL, 0);
4163     }
4164     if (!o->metadata_streams_manual)
4165         for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
4166             InputStream *ist;
4167             if (output_streams[i].source_index < 0)         /* this is true e.g. for attached files */
4168                 continue;
4169             ist = &input_streams[output_streams[i].source_index];
4170             av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
4171         }
4172
4173     /* process manually set metadata */
4174     for (i = 0; i < o->nb_metadata; i++) {
4175         AVDictionary **m;
4176         char type, *val;
4177         int index = 0;
4178
4179         val = strchr(o->metadata[i].u.str, '=');
4180         if (!val) {
4181             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
4182                    o->metadata[i].u.str);
4183             exit_program(1);
4184         }
4185         *val++ = 0;
4186
4187         parse_meta_type(o->metadata[i].specifier, &type, &index);
4188         switch (type) {
4189         case 'g':
4190             m = &oc->metadata;
4191             break;
4192         case 's':
4193             if (index < 0 || index >= oc->nb_streams) {
4194                 av_log(NULL, AV_LOG_FATAL, "Invalid stream index %d in metadata specifier.\n", index);
4195                 exit_program(1);
4196             }
4197             m = &oc->streams[index]->metadata;
4198             break;
4199         case 'c':
4200             if (index < 0 || index >= oc->nb_chapters) {
4201                 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
4202                 exit_program(1);
4203             }
4204             m = &oc->chapters[index]->metadata;
4205             break;
4206         default:
4207             av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
4208             exit_program(1);
4209         }
4210
4211         av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
4212     }
4213
4214     reset_options(o, 0);
4215 }
4216
4217 /* same option as mencoder */
4218 static int opt_pass(const char *opt, const char *arg)
4219 {
4220     do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 3);
4221     return 0;
4222 }
4223
4224 static int64_t getutime(void)
4225 {
4226 #if HAVE_GETRUSAGE
4227     struct rusage rusage;
4228
4229     getrusage(RUSAGE_SELF, &rusage);
4230     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
4231 #elif HAVE_GETPROCESSTIMES
4232     HANDLE proc;
4233     FILETIME c, e, k, u;
4234     proc = GetCurrentProcess();
4235     GetProcessTimes(proc, &c, &e, &k, &u);
4236     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
4237 #else
4238     return av_gettime();
4239 #endif
4240 }
4241
4242 static int64_t getmaxrss(void)
4243 {
4244 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
4245     struct rusage rusage;
4246     getrusage(RUSAGE_SELF, &rusage);
4247     return (int64_t)rusage.ru_maxrss * 1024;
4248 #elif HAVE_GETPROCESSMEMORYINFO
4249     HANDLE proc;
4250     PROCESS_MEMORY_COUNTERS memcounters;
4251     proc = GetCurrentProcess();
4252     memcounters.cb = sizeof(memcounters);
4253     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
4254     return memcounters.PeakPagefileUsage;
4255 #else
4256     return 0;
4257 #endif
4258 }
4259
4260 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
4261 {
4262     return parse_option(o, "q:a", arg, options);
4263 }
4264
4265 static void show_usage(void)
4266 {
4267     printf("Hyper fast Audio and Video encoder\n");
4268     printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
4269     printf("\n");
4270 }
4271
4272 static int opt_help(const char *opt, const char *arg)
4273 {
4274     int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
4275     av_log_set_callback(log_callback_help);
4276     show_usage();
4277     show_help_options(options, "Main options:\n",
4278                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
4279     show_help_options(options, "\nAdvanced options:\n",
4280                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
4281                       OPT_EXPERT);
4282     show_help_options(options, "\nVideo options:\n",
4283                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4284                       OPT_VIDEO);
4285     show_help_options(options, "\nAdvanced Video options:\n",
4286                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4287                       OPT_VIDEO | OPT_EXPERT);
4288     show_help_options(options, "\nAudio options:\n",
4289                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4290                       OPT_AUDIO);
4291     show_help_options(options, "\nAdvanced Audio options:\n",
4292                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4293                       OPT_AUDIO | OPT_EXPERT);
4294     show_help_options(options, "\nSubtitle options:\n",
4295                       OPT_SUBTITLE | OPT_GRAB,
4296                       OPT_SUBTITLE);
4297     show_help_options(options, "\nAudio/Video grab options:\n",
4298                       OPT_GRAB,
4299                       OPT_GRAB);
4300     printf("\n");
4301     show_help_children(avcodec_get_class(), flags);
4302     show_help_children(avformat_get_class(), flags);
4303     show_help_children(sws_get_class(), flags);
4304
4305     return 0;
4306 }
4307
4308 static int opt_target(OptionsContext *o, const char *opt, const char *arg)
4309 {
4310     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
4311     static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
4312
4313     if(!strncmp(arg, "pal-", 4)) {
4314         norm = PAL;
4315         arg += 4;
4316     } else if(!strncmp(arg, "ntsc-", 5)) {
4317         norm = NTSC;
4318         arg += 5;
4319     } else if(!strncmp(arg, "film-", 5)) {
4320         norm = FILM;
4321         arg += 5;
4322     } else {
4323         /* Try to determine PAL/NTSC by peeking in the input files */
4324         if(nb_input_files) {
4325             int i, j, fr;
4326             for (j = 0; j < nb_input_files; j++) {
4327                 for (i = 0; i < input_files[j].nb_streams; i++) {
4328                     AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
4329                     if(c->codec_type != AVMEDIA_TYPE_VIDEO)
4330                         continue;
4331                     fr = c->time_base.den * 1000 / c->time_base.num;
4332                     if(fr == 25000) {
4333                         norm = PAL;
4334                         break;
4335                     } else if((fr == 29970) || (fr == 23976)) {
4336                         norm = NTSC;
4337                         break;
4338                     }
4339                 }
4340                 if(norm != UNKNOWN)
4341                     break;
4342             }
4343         }
4344         if (norm != UNKNOWN)
4345             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
4346     }
4347
4348     if(norm == UNKNOWN) {
4349         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
4350         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
4351         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
4352         exit_program(1);
4353     }
4354
4355     if(!strcmp(arg, "vcd")) {
4356         opt_video_codec(o, "c:v", "mpeg1video");
4357         opt_audio_codec(o, "c:a", "mp2");
4358         parse_option(o, "f", "vcd", options);
4359
4360         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
4361         parse_option(o, "r", frame_rates[norm], options);
4362         opt_default("g", norm == PAL ? "15" : "18");
4363
4364         opt_default("b", "1150000");
4365         opt_default("maxrate", "1150000");
4366         opt_default("minrate", "1150000");
4367         opt_default("bufsize", "327680"); // 40*1024*8;
4368
4369         opt_default("b:a", "224000");
4370         parse_option(o, "ar", "44100", options);
4371         parse_option(o, "ac", "2", options);
4372
4373         opt_default("packetsize", "2324");
4374         opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
4375
4376         /* We have to offset the PTS, so that it is consistent with the SCR.
4377            SCR starts at 36000, but the first two packs contain only padding
4378            and the first pack from the other stream, respectively, may also have
4379            been written before.
4380            So the real data starts at SCR 36000+3*1200. */
4381         o->mux_preload = (36000+3*1200) / 90000.0; //0.44
4382     } else if(!strcmp(arg, "svcd")) {
4383
4384         opt_video_codec(o, "c:v", "mpeg2video");
4385         opt_audio_codec(o, "c:a", "mp2");
4386         parse_option(o, "f", "svcd", options);
4387
4388         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
4389         parse_option(o, "r", frame_rates[norm], options);
4390         parse_option(o, "pix_fmt", "yuv420p", options);
4391         opt_default("g", norm == PAL ? "15" : "18");
4392
4393         opt_default("b", "2040000");
4394         opt_default("maxrate", "2516000");
4395         opt_default("minrate", "0"); //1145000;
4396         opt_default("bufsize", "1835008"); //224*1024*8;
4397         opt_default("flags", "+scan_offset");
4398
4399
4400         opt_default("b:a", "224000");
4401         parse_option(o, "ar", "44100", options);
4402
4403         opt_default("packetsize", "2324");
4404
4405     } else if(!strcmp(arg, "dvd")) {
4406
4407         opt_video_codec(o, "c:v", "mpeg2video");
4408         opt_audio_codec(o, "c:a", "ac3");
4409         parse_option(o, "f", "dvd", options);
4410
4411         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4412         parse_option(o, "r", frame_rates[norm], options);
4413         parse_option(o, "pix_fmt", "yuv420p", options);
4414         opt_default("g", norm == PAL ? "15" : "18");
4415
4416         opt_default("b", "6000000");
4417         opt_default("maxrate", "9000000");
4418         opt_default("minrate", "0"); //1500000;
4419         opt_default("bufsize", "1835008"); //224*1024*8;
4420
4421         opt_default("packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
4422         opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
4423
4424         opt_default("b:a", "448000");
4425         parse_option(o, "ar", "48000", options);
4426
4427     } else if(!strncmp(arg, "dv", 2)) {
4428
4429         parse_option(o, "f", "dv", options);
4430
4431         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4432         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
4433                           norm == PAL ? "yuv420p" : "yuv411p", options);
4434         parse_option(o, "r", frame_rates[norm], options);
4435
4436         parse_option(o, "ar", "48000", options);
4437         parse_option(o, "ac", "2", options);
4438
4439     } else {
4440         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
4441         return AVERROR(EINVAL);
4442     }
4443     return 0;
4444 }
4445
4446 static int opt_vstats_file(const char *opt, const char *arg)
4447 {
4448     av_free (vstats_filename);
4449     vstats_filename=av_strdup (arg);
4450     return 0;
4451 }
4452
4453 static int opt_vstats(const char *opt, const char *arg)
4454 {
4455     char filename[40];
4456     time_t today2 = time(NULL);
4457     struct tm *today = localtime(&today2);
4458
4459     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
4460              today->tm_sec);
4461     return opt_vstats_file(opt, filename);
4462 }
4463
4464 static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
4465 {
4466     return parse_option(o, "frames:v", arg, options);
4467 }
4468
4469 static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
4470 {
4471     return parse_option(o, "frames:a", arg, options);
4472 }
4473
4474 static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
4475 {
4476     return parse_option(o, "frames:d", arg, options);
4477 }
4478
4479 static int opt_preset(OptionsContext *o, const char *opt, const char *arg)
4480 {
4481     FILE *f=NULL;
4482     char filename[1000], tmp[1000], tmp2[1000], line[1000];
4483     const char *codec_name = *opt == 'v' ? video_codec_name :
4484                              *opt == 'a' ? audio_codec_name :
4485                                            subtitle_codec_name;
4486
4487     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
4488         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
4489             av_log(0, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
4490         }else
4491             av_log(0, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
4492         exit_program(1);
4493     }
4494
4495     while(!feof(f)){
4496         int e= fscanf(f, "%999[^\n]\n", line) - 1;
4497         if(line[0] == '#' && !e)
4498             continue;
4499         e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
4500         if(e){
4501             av_log(0, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
4502             exit_program(1);
4503         }
4504         if(!strcmp(tmp, "acodec")){
4505             opt_audio_codec(o, tmp, tmp2);
4506         }else if(!strcmp(tmp, "vcodec")){
4507             opt_video_codec(o, tmp, tmp2);
4508         }else if(!strcmp(tmp, "scodec")){
4509             opt_subtitle_codec(o, tmp, tmp2);
4510         }else if(!strcmp(tmp, "dcodec")){
4511             opt_data_codec(o, tmp, tmp2);
4512         }else if(opt_default(tmp, tmp2) < 0){
4513             av_log(0, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4514             exit_program(1);
4515         }
4516     }
4517
4518     fclose(f);
4519
4520     return 0;
4521 }
4522
4523 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
4524 {
4525 }
4526
4527 static int opt_passlogfile(const char *opt, const char *arg)
4528 {
4529     pass_logfilename_prefix = arg;
4530 #if CONFIG_LIBX264_ENCODER
4531     return opt_default("passlogfile", arg);
4532 #else
4533     return 0;
4534 #endif
4535 }
4536
4537 static int opt_old2new(OptionsContext *o, const char *opt, const char *arg)
4538 {
4539     char *s= av_malloc(strlen(opt)+2);
4540     snprintf(s, strlen(opt)+2, "%s:%c", opt+1, *opt);
4541     return parse_option(o, s, arg, options);
4542 }
4543
4544 static int opt_bitrate(OptionsContext *o, const char *opt, const char *arg)
4545 {
4546     if(!strcmp(opt, "b")){
4547         av_log(0,AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
4548         return parse_option(o, av_strdup("b:v"), arg, options);
4549     }
4550     return opt_default(opt, arg);
4551 }
4552
4553 static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
4554 {
4555     return parse_option(o, "filter:v", arg, options);
4556 }
4557
4558 #define OFFSET(x) offsetof(OptionsContext, x)
4559 static const OptionDef options[] = {
4560     /* main options */
4561 #include "cmdutils_common_opts.h"
4562     { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
4563     { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
4564     { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
4565     { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4566     { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4567     { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
4568     { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "file.stream[:syncfile.syncstream]" },
4569     { "map_channel", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_channel}, "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
4570     { "map_meta_data", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_meta_data}, "DEPRECATED set meta data information of outfile from infile",
4571       "outfile[,metadata]:infile[,metadata]" },
4572     { "map_metadata", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_metadata}, "set metadata information of outfile from infile",
4573       "outfile[,metadata]:infile[,metadata]" },
4574     { "map_chapters",  OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)},  "set chapters mapping", "input_file_index" },
4575     { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
4576     { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
4577     { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
4578     { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
4579     { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
4580     { "timestamp", HAS_ARG | OPT_FUNC2, {(void*)opt_recording_timestamp}, "set the recording timestamp ('now' to set the current time)", "time" },
4581     { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
4582     { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
4583     { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
4584       "add timings for benchmarking" },
4585     { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
4586     { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
4587       "dump each input packet" },
4588     { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
4589       "when dumping packets, also dump the payload" },
4590     { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
4591     { "loop_input", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "deprecated, use -loop" },
4592     { "loop_output", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&loop_output}, "deprecated, use -loop", "" },
4593     { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
4594     { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
4595     { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
4596     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
4597     { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
4598     { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying" },
4599     { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
4600     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
4601     { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
4602     { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
4603     { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
4604     { "tag",   OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
4605     { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4606     { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4607 #if CONFIG_AVFILTER
4608     { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
4609 #endif
4610     { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
4611     { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
4612     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
4613
4614     /* video options */
4615     { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
4616     { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
4617     { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
4618     { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
4619     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
4620     { "bits_per_raw_sample", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&frame_bits_per_raw_sample}, "set the number of bits per raw sample", "number" },
4621     { "croptop",  HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4622     { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4623     { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4624     { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4625     { "padtop", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4626     { "padbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4627     { "padleft", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4628     { "padright", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4629     { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "color" },
4630     { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
4631     { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
4632     { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
4633     { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
4634     { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
4635     { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant}, "use same quantizer as source (implies VBR)" },
4636     { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
4637       "use same quantizer as source (implies VBR)" },
4638     { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
4639     { "passlogfile", HAS_ARG | OPT_VIDEO, {(void*)&opt_passlogfile}, "select two pass log file name prefix", "prefix" },
4640     { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
4641       "deinterlace pictures" },
4642     { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
4643     { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
4644     { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
4645 #if CONFIG_AVFILTER
4646     { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
4647 #endif
4648     { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
4649     { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
4650     { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
4651     { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
4652     { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_old2new}, "force video tag/fourcc", "fourcc/tag" },
4653     { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
4654     { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
4655     { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
4656     { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
4657     { "b", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_bitrate}, "video bitrate (please use -b:v)", "bitrate" },
4658
4659     /* audio options */
4660     { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
4661     { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
4662     { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
4663     { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
4664     { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
4665     { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
4666     { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_old2new}, "force audio tag/fourcc", "fourcc/tag" },
4667     { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
4668     { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
4669     { "rmvol", HAS_ARG | OPT_AUDIO | OPT_FLOAT | OPT_SPEC, {.off = OFFSET(rematrix_volume)}, "rematrix volume (as factor)", "volume" },
4670
4671     /* subtitle options */
4672     { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
4673     { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
4674     { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_old2new}, "force subtitle tag/fourcc", "fourcc/tag" },
4675
4676     /* grab options */
4677     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "deprecated, use -channel", "channel" },
4678     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "deprecated, use -standard", "standard" },
4679     { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
4680
4681     /* muxer options */
4682     { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT   | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
4683     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)},   "set the initial demux-decode delay", "seconds" },
4684
4685     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
4686     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "audio bitstream_filters" },
4687     { "vbsf", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "video bitstream_filters" },
4688
4689     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the audio options to the indicated preset", "preset" },
4690     { "vpre", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the video options to the indicated preset", "preset" },
4691     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the subtitle options to the indicated preset", "preset" },
4692     { "fpre", HAS_ARG | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
4693     /* data codec support */
4694     { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
4695
4696     { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
4697     { NULL, },
4698 };
4699
4700 int main(int argc, char **argv)
4701 {
4702     OptionsContext o = { 0 };
4703     int64_t ti;
4704
4705     reset_options(&o, 0);
4706
4707     av_log_set_flags(AV_LOG_SKIP_REPEATED);
4708     parse_loglevel(argc, argv, options);
4709
4710     if(argc>1 && !strcmp(argv[1], "-d")){
4711         run_as_daemon=1;
4712         av_log_set_callback(log_callback_null);
4713         argc--;
4714         argv++;
4715     }
4716
4717     avcodec_register_all();
4718 #if CONFIG_AVDEVICE
4719     avdevice_register_all();
4720 #endif
4721 #if CONFIG_AVFILTER
4722     avfilter_register_all();
4723 #endif
4724     av_register_all();
4725     avformat_network_init();
4726
4727 #if HAVE_ISATTY
4728     if(isatty(STDIN_FILENO))
4729         avio_set_interrupt_cb(decode_interrupt_cb);
4730 #endif
4731
4732     show_banner();
4733
4734     term_init();
4735
4736     /* parse options */
4737     parse_options(&o, argc, argv, options, opt_output_file);
4738
4739     if(nb_output_files <= 0 && nb_input_files == 0) {
4740         show_usage();
4741         av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4742         exit_program(1);
4743     }
4744
4745     /* file converter / grab */
4746     if (nb_output_files <= 0) {
4747         av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
4748         exit_program(1);
4749     }
4750
4751     if (nb_input_files == 0) {
4752         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
4753         exit_program(1);
4754     }
4755
4756     ti = getutime();
4757     if (transcode(output_files, nb_output_files, input_files, nb_input_files) < 0)
4758         exit_program(1);
4759     ti = getutime() - ti;
4760     if (do_benchmark) {
4761         int maxrss = getmaxrss() / 1024;
4762         printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
4763     }
4764
4765     exit_program(0);
4766     return 0;
4767 }