3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcore/audioconvert.h"
40 #include "libavcore/parseutils.h"
41 #include "libavcore/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
63 #if HAVE_GETPROCESSMEMORYINFO
69 #include <sys/select.h>
74 #include <sys/ioctl.h>
84 #include "libavutil/avassert.h"
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
94 int sync_stream_index;
98 * select an input file for an output file
100 typedef struct AVMetaDataMap {
101 int file; //< file index
102 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103 int index; //< stream/chapter/program number
106 typedef struct AVChapterMap {
111 static const OptionDef options[];
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy = 1;
139 static int metadata_streams_autocopy = 1;
140 static int metadata_chapters_autocopy = 1;
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
149 static int frame_width = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
174 static char *vfilters = NULL;
175 AVFilterGraph *graph = NULL;
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
224 static int rate_emu = 0;
226 static int video_channel = 0;
227 static char *video_standard;
229 static int audio_volume = 256;
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
246 static float dts_delta_threshold = 10;
248 static unsigned int sws_flags = SWS_BICUBIC;
250 static int64_t timer_start;
252 static uint8_t *audio_buf;
253 static uint8_t *audio_out;
254 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
256 static short *samples;
258 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
262 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
264 struct AVInputStream;
266 typedef struct AVOutputStream {
267 int file_index; /* file index */
268 int index; /* stream index in the output file */
269 int source_index; /* AVInputStream index */
270 AVStream *st; /* stream in the output file */
271 int encoding_needed; /* true if encoding needed for this stream */
273 /* input pts and corresponding output pts
275 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
276 struct AVInputStream *sync_ist; /* input stream to sync against */
277 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
278 AVBitStreamFilterContext *bitstream_filters;
281 AVFrame pict_tmp; /* temporary image for resampling */
282 struct SwsContext *img_resample_ctx; /* for image resampling */
285 int resample_pix_fmt;
287 /* full frame size of first frame */
291 /* forced key frames */
292 int64_t *forced_kf_pts;
298 ReSampleContext *resample; /* for audio resampling */
299 int resample_sample_fmt;
300 int resample_channels;
301 int resample_sample_rate;
303 AVAudioConvert *reformat_ctx;
304 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
311 typedef struct AVInputStream {
315 int discard; /* true if stream data should be discarded */
316 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
317 int64_t sample_index; /* current sample */
319 int64_t start; /* time when read started */
320 int64_t next_pts; /* synthetic pts for cases where pkt.pts
322 int64_t pts; /* current pts */
323 PtsCorrectionContext pts_ctx;
324 int is_start; /* is 1 at the start and after a discontinuity */
325 int showed_multi_packet_warning;
326 int is_past_recording_time;
328 AVFilterContext *output_video_filter;
329 AVFilterContext *input_video_filter;
330 AVFrame *filter_frame;
331 int has_filter_frame;
332 AVFilterBufferRef *picref;
336 typedef struct AVInputFile {
337 int eof_reached; /* true if eof reached */
338 int ist_index; /* index of first stream in ist_table */
339 int buffer_size; /* current total buffer size */
340 int nb_streams; /* nb streams we are aware of */
345 /* init terminal so that we can grab keys */
346 static struct termios oldtty;
351 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
353 AVFilterContext *last_filter, *filter;
354 /** filter graph containing all filters including input & output */
355 AVCodecContext *codec = ost->st->codec;
356 AVCodecContext *icodec = ist->st->codec;
357 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
361 graph = avfilter_graph_alloc();
363 snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
364 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
365 ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
366 "src", args, NULL, graph);
369 ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
370 "out", NULL, &ffsink_ctx, graph);
373 last_filter = ist->input_video_filter;
375 if (codec->width != icodec->width || codec->height != icodec->height) {
376 snprintf(args, 255, "%d:%d:flags=0x%X",
379 (int)av_get_int(sws_opts, "sws_flags", NULL));
380 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381 NULL, args, NULL, graph)) < 0)
383 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
385 last_filter = filter;
388 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
389 graph->scale_sws_opts = av_strdup(args);
392 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
393 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
395 outputs->name = av_strdup("in");
396 outputs->filter_ctx = last_filter;
397 outputs->pad_idx = 0;
398 outputs->next = NULL;
400 inputs->name = av_strdup("out");
401 inputs->filter_ctx = ist->output_video_filter;
405 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
409 if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
413 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
416 codec->width = ist->output_video_filter->inputs[0]->w;
417 codec->height = ist->output_video_filter->inputs[0]->h;
421 #endif /* CONFIG_AVFILTER */
423 static void term_exit(void)
425 av_log(NULL, AV_LOG_QUIET, "");
427 tcsetattr (0, TCSANOW, &oldtty);
431 static volatile int received_sigterm = 0;
434 sigterm_handler(int sig)
436 received_sigterm = sig;
440 static void term_init(void)
449 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
450 |INLCR|IGNCR|ICRNL|IXON);
451 tty.c_oflag |= OPOST;
452 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
453 tty.c_cflag &= ~(CSIZE|PARENB);
458 tcsetattr (0, TCSANOW, &tty);
459 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
462 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
463 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
465 signal(SIGXCPU, sigterm_handler);
469 /* read a key without blocking */
470 static int read_key(void)
482 n = select(1, &rfds, NULL, NULL, &tv);
497 static int decode_interrupt_cb(void)
499 return q_pressed || (q_pressed = read_key() == 'q');
502 static int ffmpeg_exit(int ret)
507 for(i=0;i<nb_output_files;i++) {
508 /* maybe av_close_output_file ??? */
509 AVFormatContext *s = output_files[i];
511 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
513 for(j=0;j<s->nb_streams;j++) {
514 av_metadata_free(&s->streams[j]->metadata);
515 av_free(s->streams[j]->codec);
516 av_free(s->streams[j]->info);
517 av_free(s->streams[j]);
519 for(j=0;j<s->nb_programs;j++) {
520 av_metadata_free(&s->programs[j]->metadata);
522 for(j=0;j<s->nb_chapters;j++) {
523 av_metadata_free(&s->chapters[j]->metadata);
525 av_metadata_free(&s->metadata);
527 av_free(output_streams_for_file[i]);
529 for(i=0;i<nb_input_files;i++) {
530 av_close_input_file(input_files[i]);
531 av_free(input_files_ts_scale[i]);
534 av_free(intra_matrix);
535 av_free(inter_matrix);
539 av_free(vstats_filename);
542 av_free(streamid_map);
543 av_free(input_codecs);
544 av_free(output_codecs);
545 av_free(stream_maps);
546 av_free(meta_data_maps);
548 av_free(video_codec_name);
549 av_free(audio_codec_name);
550 av_free(subtitle_codec_name);
552 av_free(video_standard);
557 allocated_audio_buf_size= allocated_audio_out_size= 0;
564 if (received_sigterm) {
566 "Received signal %d: terminating.\n",
567 (int) received_sigterm);
571 exit(ret); /* not all OS-es handle main() return value */
575 /* similar to ff_dynarray_add() and av_fast_realloc() */
576 static void *grow_array(void *array, int elem_size, int *size, int new_size)
578 if (new_size >= INT_MAX / elem_size) {
579 fprintf(stderr, "Array too big.\n");
582 if (*size < new_size) {
583 uint8_t *tmp = av_realloc(array, new_size*elem_size);
585 fprintf(stderr, "Could not alloc buffer.\n");
588 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
595 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
597 if(codec && codec->sample_fmts){
598 const enum AVSampleFormat *p= codec->sample_fmts;
600 if(*p == st->codec->sample_fmt)
604 st->codec->sample_fmt = codec->sample_fmts[0];
608 static void choose_sample_rate(AVStream *st, AVCodec *codec)
610 if(codec && codec->supported_samplerates){
611 const int *p= codec->supported_samplerates;
613 int best_dist=INT_MAX;
615 int dist= abs(st->codec->sample_rate - *p);
616 if(dist < best_dist){
622 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
624 st->codec->sample_rate= best;
628 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
630 if(codec && codec->pix_fmts){
631 const enum PixelFormat *p= codec->pix_fmts;
632 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
633 if(st->codec->codec_id==CODEC_ID_MJPEG){
634 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
635 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
636 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};
640 if(*p == st->codec->pix_fmt)
644 st->codec->pix_fmt = codec->pix_fmts[0];
648 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
650 int idx = oc->nb_streams - 1;
653 output_streams_for_file[file_idx] =
654 grow_array(output_streams_for_file[file_idx],
655 sizeof(*output_streams_for_file[file_idx]),
656 &nb_output_streams_for_file[file_idx],
658 ost = output_streams_for_file[file_idx][idx] =
659 av_mallocz(sizeof(AVOutputStream));
661 fprintf(stderr, "Could not alloc output stream\n");
664 ost->file_index = file_idx;
669 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
675 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
678 /* copy stream format */
680 for(i=0;i<ic->nb_streams;i++) {
686 // FIXME: a more elegant solution is needed
687 st = av_mallocz(sizeof(AVStream));
688 memcpy(st, ic->streams[i], sizeof(AVStream));
689 st->codec = avcodec_alloc_context();
691 print_error(filename, AVERROR(ENOMEM));
694 avcodec_copy_context(st->codec, ic->streams[i]->codec);
697 codec = avcodec_find_encoder(st->codec->codec_id);
698 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
699 if (audio_stream_copy) {
702 choose_sample_fmt(st, codec);
703 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
704 if (video_stream_copy) {
707 choose_pixel_fmt(st, codec);
710 if(!st->codec->thread_count)
711 st->codec->thread_count = 1;
712 if(st->codec->thread_count>1)
713 avcodec_thread_init(st->codec, st->codec->thread_count);
715 if(st->codec->flags & CODEC_FLAG_BITEXACT)
718 new_output_stream(s, nb_output_files);
722 s->timestamp = av_gettime();
724 av_close_input_file(ic);
729 get_sync_ipts(const AVOutputStream *ost)
731 const AVInputStream *ist = ost->sync_ist;
732 return (double)(ist->pts - start_time)/AV_TIME_BASE;
735 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
739 AVPacket new_pkt= *pkt;
740 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
741 &new_pkt.data, &new_pkt.size,
742 pkt->data, pkt->size,
743 pkt->flags & AV_PKT_FLAG_KEY);
746 new_pkt.destruct= av_destruct_packet;
748 fprintf(stderr, "%s failed for stream %d, codec %s",
749 bsfc->filter->name, pkt->stream_index,
750 avctx->codec ? avctx->codec->name : "copy");
760 ret= av_interleaved_write_frame(s, pkt);
762 print_error("av_interleaved_write_frame()", ret);
767 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
769 static void do_audio_out(AVFormatContext *s,
772 unsigned char *buf, int size)
775 int64_t audio_out_size, audio_buf_size;
776 int64_t allocated_for_size= size;
778 int size_out, frame_bytes, ret, resample_changed;
779 AVCodecContext *enc= ost->st->codec;
780 AVCodecContext *dec= ist->st->codec;
781 int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
782 int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
783 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
786 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
787 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
788 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
789 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
790 audio_buf_size*= osize*enc->channels;
792 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
793 if(coded_bps > 8*osize)
794 audio_out_size= audio_out_size * coded_bps / (8*osize);
795 audio_out_size += FF_MIN_BUFFER_SIZE;
797 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
798 fprintf(stderr, "Buffer sizes too large\n");
802 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
803 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
804 if (!audio_buf || !audio_out){
805 fprintf(stderr, "Out of memory in do_audio_out\n");
809 if (enc->channels != dec->channels)
810 ost->audio_resample = 1;
812 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
813 ost->resample_channels != dec->channels ||
814 ost->resample_sample_rate != dec->sample_rate;
816 if ((ost->audio_resample && !ost->resample) || resample_changed) {
817 if (resample_changed) {
818 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",
819 ist->file_index, ist->index,
820 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
821 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
822 ost->resample_sample_fmt = dec->sample_fmt;
823 ost->resample_channels = dec->channels;
824 ost->resample_sample_rate = dec->sample_rate;
826 audio_resample_close(ost->resample);
828 if (ost->resample_sample_fmt == enc->sample_fmt &&
829 ost->resample_channels == enc->channels &&
830 ost->resample_sample_rate == enc->sample_rate) {
831 ost->resample = NULL;
832 ost->audio_resample = 0;
834 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
835 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
836 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
837 enc->sample_rate, dec->sample_rate,
838 enc->sample_fmt, dec->sample_fmt,
840 if (!ost->resample) {
841 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
842 dec->channels, dec->sample_rate,
843 enc->channels, enc->sample_rate);
849 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
850 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
851 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
852 if (ost->reformat_ctx)
853 av_audio_convert_free(ost->reformat_ctx);
854 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
855 dec->sample_fmt, 1, NULL, 0);
856 if (!ost->reformat_ctx) {
857 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
858 av_get_sample_fmt_name(dec->sample_fmt),
859 av_get_sample_fmt_name(enc->sample_fmt));
862 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
865 if(audio_sync_method){
866 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
867 - av_fifo_size(ost->fifo)/(enc->channels * 2);
868 double idelta= delta*dec->sample_rate / enc->sample_rate;
869 int byte_delta= ((int)idelta)*2*dec->channels;
871 //FIXME resample delay
872 if(fabs(delta) > 50){
873 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
875 byte_delta= FFMAX(byte_delta, -size);
879 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
884 static uint8_t *input_tmp= NULL;
885 input_tmp= av_realloc(input_tmp, byte_delta + size);
887 if(byte_delta > allocated_for_size - size){
888 allocated_for_size= byte_delta + (int64_t)size;
893 memset(input_tmp, 0, byte_delta);
894 memcpy(input_tmp + byte_delta, buf, size);
898 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
900 }else if(audio_sync_method>1){
901 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
902 av_assert0(ost->audio_resample);
904 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
905 // 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));
906 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
910 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
911 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
913 if (ost->audio_resample) {
915 size_out = audio_resample(ost->resample,
916 (short *)buftmp, (short *)buf,
917 size / (dec->channels * isize));
918 size_out = size_out * enc->channels * osize;
924 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
925 const void *ibuf[6]= {buftmp};
926 void *obuf[6]= {audio_buf};
927 int istride[6]= {isize};
928 int ostride[6]= {osize};
929 int len= size_out/istride[0];
930 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
931 printf("av_audio_convert() failed\n");
937 size_out = len*osize;
940 /* now encode as many frames as possible */
941 if (enc->frame_size > 1) {
942 /* output resampled raw samples */
943 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
944 fprintf(stderr, "av_fifo_realloc2() failed\n");
947 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
949 frame_bytes = enc->frame_size * osize * enc->channels;
951 while (av_fifo_size(ost->fifo) >= frame_bytes) {
953 av_init_packet(&pkt);
955 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
957 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
959 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
962 fprintf(stderr, "Audio encoding failed\n");
966 pkt.stream_index= ost->index;
969 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
970 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
971 pkt.flags |= AV_PKT_FLAG_KEY;
972 write_frame(s, &pkt, enc, ost->bitstream_filters);
974 ost->sync_opts += enc->frame_size;
978 av_init_packet(&pkt);
980 ost->sync_opts += size_out / (osize * enc->channels);
982 /* output a pcm frame */
983 /* determine the size of the coded buffer */
986 size_out = size_out*coded_bps/8;
988 if(size_out > audio_out_size){
989 fprintf(stderr, "Internal error, buffer size too small\n");
993 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
994 ret = avcodec_encode_audio(enc, audio_out, size_out,
997 fprintf(stderr, "Audio encoding failed\n");
1001 pkt.stream_index= ost->index;
1002 pkt.data= audio_out;
1004 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1005 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1006 pkt.flags |= AV_PKT_FLAG_KEY;
1007 write_frame(s, &pkt, enc, ost->bitstream_filters);
1011 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1013 AVCodecContext *dec;
1014 AVPicture *picture2;
1015 AVPicture picture_tmp;
1018 dec = ist->st->codec;
1020 /* deinterlace : must be done before any resize */
1021 if (do_deinterlace) {
1024 /* create temporary picture */
1025 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1026 buf = av_malloc(size);
1030 picture2 = &picture_tmp;
1031 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1033 if(avpicture_deinterlace(picture2, picture,
1034 dec->pix_fmt, dec->width, dec->height) < 0) {
1035 /* if error, do not deinterlace */
1036 fprintf(stderr, "Deinterlacing failed\n");
1045 if (picture != picture2)
1046 *picture = *picture2;
1050 /* we begin to correct av delay at this threshold */
1051 #define AV_DELAY_MAX 0.100
1053 static void do_subtitle_out(AVFormatContext *s,
1054 AVOutputStream *ost,
1059 static uint8_t *subtitle_out = NULL;
1060 int subtitle_out_max_size = 1024 * 1024;
1061 int subtitle_out_size, nb, i;
1062 AVCodecContext *enc;
1065 if (pts == AV_NOPTS_VALUE) {
1066 fprintf(stderr, "Subtitle packets must have a pts\n");
1072 enc = ost->st->codec;
1074 if (!subtitle_out) {
1075 subtitle_out = av_malloc(subtitle_out_max_size);
1078 /* Note: DVB subtitle need one packet to draw them and one other
1079 packet to clear them */
1080 /* XXX: signal it in the codec context ? */
1081 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1086 for(i = 0; i < nb; i++) {
1087 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1088 // start_display_time is required to be 0
1089 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1090 sub->end_display_time -= sub->start_display_time;
1091 sub->start_display_time = 0;
1092 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1093 subtitle_out_max_size, sub);
1094 if (subtitle_out_size < 0) {
1095 fprintf(stderr, "Subtitle encoding failed\n");
1099 av_init_packet(&pkt);
1100 pkt.stream_index = ost->index;
1101 pkt.data = subtitle_out;
1102 pkt.size = subtitle_out_size;
1103 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1104 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1105 /* XXX: the pts correction is handled here. Maybe handling
1106 it in the codec would be better */
1108 pkt.pts += 90 * sub->start_display_time;
1110 pkt.pts += 90 * sub->end_display_time;
1112 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1116 static int bit_buffer_size= 1024*256;
1117 static uint8_t *bit_buffer= NULL;
1119 static void do_video_out(AVFormatContext *s,
1120 AVOutputStream *ost,
1122 AVFrame *in_picture,
1125 int nb_frames, i, ret;
1126 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1127 AVCodecContext *enc, *dec;
1130 enc = ost->st->codec;
1131 dec = ist->st->codec;
1133 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1135 /* by default, we output a single frame */
1140 if(video_sync_method){
1141 double vdelta = sync_ipts - ost->sync_opts;
1142 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1145 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1148 }else if(vdelta>0.6)
1149 ost->sync_opts= lrintf(sync_ipts);
1150 }else if (vdelta > 1.1)
1151 nb_frames = lrintf(vdelta);
1152 //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);
1153 if (nb_frames == 0){
1156 fprintf(stderr, "*** drop!\n");
1157 }else if (nb_frames > 1) {
1158 nb_frames_dup += nb_frames - 1;
1160 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1163 ost->sync_opts= lrintf(sync_ipts);
1165 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1169 formatted_picture = in_picture;
1170 final_picture = formatted_picture;
1171 padding_src = formatted_picture;
1172 resampling_dst = &ost->pict_tmp;
1174 if ( ost->resample_height != ist->st->codec->height
1175 || ost->resample_width != ist->st->codec->width
1176 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1178 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1179 if(!ost->video_resample)
1183 #if !CONFIG_AVFILTER
1184 if (ost->video_resample) {
1186 final_picture = &ost->pict_tmp;
1187 if( ost->resample_height != ist->st->codec->height
1188 || ost->resample_width != ist->st->codec->width
1189 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1191 /* initialize a new scaler context */
1192 sws_freeContext(ost->img_resample_ctx);
1193 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1194 ost->img_resample_ctx = sws_getContext(
1195 ist->st->codec->width,
1196 ist->st->codec->height,
1197 ist->st->codec->pix_fmt,
1198 ost->st->codec->width,
1199 ost->st->codec->height,
1200 ost->st->codec->pix_fmt,
1201 sws_flags, NULL, NULL, NULL);
1202 if (ost->img_resample_ctx == NULL) {
1203 fprintf(stderr, "Cannot get resampling context\n");
1207 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1208 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1212 /* duplicates frame if needed */
1213 for(i=0;i<nb_frames;i++) {
1215 av_init_packet(&pkt);
1216 pkt.stream_index= ost->index;
1218 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1219 /* raw pictures are written as AVPicture structure to
1220 avoid any copies. We support temorarily the older
1222 AVFrame* old_frame = enc->coded_frame;
1223 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1224 pkt.data= (uint8_t *)final_picture;
1225 pkt.size= sizeof(AVPicture);
1226 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1227 pkt.flags |= AV_PKT_FLAG_KEY;
1229 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1230 enc->coded_frame = old_frame;
1232 AVFrame big_picture;
1234 big_picture= *final_picture;
1235 /* better than nothing: use input picture interlaced
1237 big_picture.interlaced_frame = in_picture->interlaced_frame;
1238 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1239 if(top_field_first == -1)
1240 big_picture.top_field_first = in_picture->top_field_first;
1242 big_picture.top_field_first = top_field_first;
1245 /* handles sameq here. This is not correct because it may
1246 not be a global option */
1247 big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1249 big_picture.pict_type = 0;
1250 // big_picture.pts = AV_NOPTS_VALUE;
1251 big_picture.pts= ost->sync_opts;
1252 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1253 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1254 if (ost->forced_kf_index < ost->forced_kf_count &&
1255 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1256 big_picture.pict_type = FF_I_TYPE;
1257 ost->forced_kf_index++;
1259 ret = avcodec_encode_video(enc,
1260 bit_buffer, bit_buffer_size,
1263 fprintf(stderr, "Video encoding failed\n");
1268 pkt.data= bit_buffer;
1270 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1271 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1272 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1273 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1274 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1276 if(enc->coded_frame->key_frame)
1277 pkt.flags |= AV_PKT_FLAG_KEY;
1278 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1281 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1282 // enc->frame_number-1, ret, enc->pict_type);
1283 /* if two pass, output log */
1284 if (ost->logfile && enc->stats_out) {
1285 fprintf(ost->logfile, "%s", enc->stats_out);
1290 ost->frame_number++;
1294 static double psnr(double d){
1295 return -10.0*log(d)/log(10.0);
1298 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1301 AVCodecContext *enc;
1303 double ti1, bitrate, avg_bitrate;
1305 /* this is executed just the first time do_video_stats is called */
1307 vstats_file = fopen(vstats_filename, "w");
1314 enc = ost->st->codec;
1315 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316 frame_number = ost->frame_number;
1317 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1318 if (enc->flags&CODEC_FLAG_PSNR)
1319 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1321 fprintf(vstats_file,"f_size= %6d ", frame_size);
1322 /* compute pts value */
1323 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1327 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1328 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1329 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1330 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1331 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1335 static void print_report(AVFormatContext **output_files,
1336 AVOutputStream **ost_table, int nb_ostreams,
1340 AVOutputStream *ost;
1341 AVFormatContext *oc;
1343 AVCodecContext *enc;
1344 int frame_number, vid, i;
1345 double bitrate, ti1, pts;
1346 static int64_t last_time = -1;
1347 static int qp_histogram[52];
1349 if (!is_last_report) {
1351 /* display the report every 0.5 seconds */
1352 cur_time = av_gettime();
1353 if (last_time == -1) {
1354 last_time = cur_time;
1357 if ((cur_time - last_time) < 500000)
1359 last_time = cur_time;
1363 oc = output_files[0];
1365 total_size = url_fsize(oc->pb);
1366 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1367 total_size= url_ftell(oc->pb);
1372 for(i=0;i<nb_ostreams;i++) {
1374 enc = ost->st->codec;
1375 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1376 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1377 !ost->st->stream_copy ?
1378 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1380 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1381 float t = (av_gettime()-timer_start) / 1000000.0;
1383 frame_number = ost->frame_number;
1384 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1385 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1386 !ost->st->stream_copy ?
1387 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1389 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1392 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1393 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1398 if (enc->flags&CODEC_FLAG_PSNR){
1400 double error, error_sum=0;
1401 double scale, scale_sum=0;
1402 char type[3]= {'Y','U','V'};
1403 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1406 error= enc->error[j];
1407 scale= enc->width*enc->height*255.0*255.0*frame_number;
1409 error= enc->coded_frame->error[j];
1410 scale= enc->width*enc->height*255.0*255.0;
1415 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1417 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1421 /* compute min output value */
1422 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1423 if ((pts < ti1) && (pts > 0))
1429 if (verbose || is_last_report) {
1430 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1432 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1433 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1434 (double)total_size / 1024, ti1, bitrate);
1436 if (nb_frames_dup || nb_frames_drop)
1437 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1438 nb_frames_dup, nb_frames_drop);
1441 fprintf(stderr, "%s \r", buf);
1446 if (is_last_report && verbose >= 0){
1447 int64_t raw= audio_size + video_size + extra_size;
1448 fprintf(stderr, "\n");
1449 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1453 100.0*(total_size - raw)/raw
1458 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1459 static int output_packet(AVInputStream *ist, int ist_index,
1460 AVOutputStream **ost_table, int nb_ostreams,
1461 const AVPacket *pkt)
1463 AVFormatContext *os;
1464 AVOutputStream *ost;
1468 void *buffer_to_free;
1469 static unsigned int samples_size= 0;
1470 AVSubtitle subtitle, *subtitle_to_free;
1471 int64_t pkt_pts = AV_NOPTS_VALUE;
1473 int frame_available;
1477 int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1479 if(ist->next_pts == AV_NOPTS_VALUE)
1480 ist->next_pts= ist->pts;
1484 av_init_packet(&avpkt);
1492 if(pkt->dts != AV_NOPTS_VALUE)
1493 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1494 if(pkt->pts != AV_NOPTS_VALUE)
1495 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1497 //while we have more to decode or while the decoder did output something on EOF
1498 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1499 uint8_t *data_buf, *decoded_data_buf;
1500 int data_size, decoded_data_size;
1502 ist->pts= ist->next_pts;
1504 if(avpkt.size && avpkt.size != pkt->size &&
1505 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1506 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1507 ist->showed_multi_packet_warning=1;
1510 /* decode the packet if needed */
1511 decoded_data_buf = NULL; /* fail safe */
1512 decoded_data_size= 0;
1513 data_buf = avpkt.data;
1514 data_size = avpkt.size;
1515 subtitle_to_free = NULL;
1516 if (ist->decoding_needed) {
1517 switch(ist->st->codec->codec_type) {
1518 case AVMEDIA_TYPE_AUDIO:{
1519 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1520 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1522 samples= av_malloc(samples_size);
1524 decoded_data_size= samples_size;
1525 /* XXX: could avoid copy if PCM 16 bits with same
1526 endianness as CPU */
1527 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1534 /* Some bug in mpeg audio decoder gives */
1535 /* decoded_data_size < 0, it seems they are overflows */
1536 if (decoded_data_size <= 0) {
1537 /* no audio frame */
1540 decoded_data_buf = (uint8_t *)samples;
1541 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1542 (ist->st->codec->sample_rate * ist->st->codec->channels);
1544 case AVMEDIA_TYPE_VIDEO:
1545 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1546 /* XXX: allocate picture correctly */
1547 avcodec_get_frame_defaults(&picture);
1548 ist->st->codec->reordered_opaque = pkt_pts;
1549 pkt_pts = AV_NOPTS_VALUE;
1551 ret = avcodec_decode_video2(ist->st->codec,
1552 &picture, &got_picture, &avpkt);
1553 ist->st->quality= picture.quality;
1557 /* no picture yet */
1558 goto discard_packet;
1560 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1561 if (ist->st->codec->time_base.num != 0) {
1562 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1563 ist->next_pts += ((int64_t)AV_TIME_BASE *
1564 ist->st->codec->time_base.num * ticks) /
1565 ist->st->codec->time_base.den;
1569 case AVMEDIA_TYPE_SUBTITLE:
1570 ret = avcodec_decode_subtitle2(ist->st->codec,
1571 &subtitle, &got_picture, &avpkt);
1575 goto discard_packet;
1577 subtitle_to_free = &subtitle;
1584 switch(ist->st->codec->codec_type) {
1585 case AVMEDIA_TYPE_AUDIO:
1586 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1587 ist->st->codec->sample_rate;
1589 case AVMEDIA_TYPE_VIDEO:
1590 if (ist->st->codec->time_base.num != 0) {
1591 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1592 ist->next_pts += ((int64_t)AV_TIME_BASE *
1593 ist->st->codec->time_base.num * ticks) /
1594 ist->st->codec->time_base.den;
1602 buffer_to_free = NULL;
1603 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1604 pre_process_video_frame(ist, (AVPicture *)&picture,
1609 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1610 // add it to be filtered
1611 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1613 ist->st->codec->sample_aspect_ratio);
1617 // preprocess audio (volume)
1618 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1619 if (audio_volume != 256) {
1622 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1623 int v = ((*volp) * audio_volume + 128) >> 8;
1624 if (v < -32768) v = -32768;
1625 if (v > 32767) v = 32767;
1631 /* frame rate emulation */
1633 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1634 int64_t now = av_gettime() - ist->start;
1639 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1640 !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1642 /* if output time reached then transcode raw format,
1643 encode packets and output them */
1644 if (start_time == 0 || ist->pts >= start_time)
1646 while (frame_available) {
1647 AVRational ist_pts_tb;
1648 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1649 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1651 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1653 for(i=0;i<nb_ostreams;i++) {
1657 if (ost->source_index == ist_index) {
1658 os = output_files[ost->file_index];
1660 /* set the input output pts pairs */
1661 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1663 if (ost->encoding_needed) {
1664 av_assert0(ist->decoding_needed);
1665 switch(ost->st->codec->codec_type) {
1666 case AVMEDIA_TYPE_AUDIO:
1667 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1669 case AVMEDIA_TYPE_VIDEO:
1671 if (ist->picref->video)
1672 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1674 do_video_out(os, ost, ist, &picture, &frame_size);
1675 if (vstats_filename && frame_size)
1676 do_video_stats(os, ost, frame_size);
1678 case AVMEDIA_TYPE_SUBTITLE:
1679 do_subtitle_out(os, ost, ist, &subtitle,
1686 AVFrame avframe; //FIXME/XXX remove this
1688 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1690 av_init_packet(&opkt);
1692 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1695 /* no reencoding needed : output the packet directly */
1696 /* force the input stream PTS */
1698 avcodec_get_frame_defaults(&avframe);
1699 ost->st->codec->coded_frame= &avframe;
1700 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1702 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1703 audio_size += data_size;
1704 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1705 video_size += data_size;
1709 opkt.stream_index= ost->index;
1710 if(pkt->pts != AV_NOPTS_VALUE)
1711 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1713 opkt.pts= AV_NOPTS_VALUE;
1715 if (pkt->dts == AV_NOPTS_VALUE)
1716 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1718 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1719 opkt.dts -= ost_tb_start_time;
1721 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1722 opkt.flags= pkt->flags;
1724 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1725 if( ost->st->codec->codec_id != CODEC_ID_H264
1726 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1727 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1729 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1730 opkt.destruct= av_destruct_packet;
1732 opkt.data = data_buf;
1733 opkt.size = data_size;
1736 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1737 ost->st->codec->frame_number++;
1738 ost->frame_number++;
1739 av_free_packet(&opkt);
1745 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1746 ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1748 avfilter_unref_buffer(ist->picref);
1751 av_free(buffer_to_free);
1752 /* XXX: allocate the subtitles in the codec ? */
1753 if (subtitle_to_free) {
1754 avsubtitle_free(subtitle_to_free);
1755 subtitle_to_free = NULL;
1762 for(i=0;i<nb_ostreams;i++) {
1764 if (ost->source_index == ist_index) {
1765 AVCodecContext *enc= ost->st->codec;
1766 os = output_files[ost->file_index];
1768 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1770 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1773 if (ost->encoding_needed) {
1777 av_init_packet(&pkt);
1778 pkt.stream_index= ost->index;
1780 switch(ost->st->codec->codec_type) {
1781 case AVMEDIA_TYPE_AUDIO:
1782 fifo_bytes = av_fifo_size(ost->fifo);
1784 /* encode any samples remaining in fifo */
1785 if (fifo_bytes > 0) {
1786 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1787 int fs_tmp = enc->frame_size;
1789 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1790 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1791 enc->frame_size = fifo_bytes / (osize * enc->channels);
1793 int frame_bytes = enc->frame_size*osize*enc->channels;
1794 if (allocated_audio_buf_size < frame_bytes)
1796 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1799 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1800 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1801 ost->st->time_base.num, enc->sample_rate);
1802 enc->frame_size = fs_tmp;
1805 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1808 fprintf(stderr, "Audio encoding failed\n");
1812 pkt.flags |= AV_PKT_FLAG_KEY;
1814 case AVMEDIA_TYPE_VIDEO:
1815 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1817 fprintf(stderr, "Video encoding failed\n");
1821 if(enc->coded_frame && enc->coded_frame->key_frame)
1822 pkt.flags |= AV_PKT_FLAG_KEY;
1823 if (ost->logfile && enc->stats_out) {
1824 fprintf(ost->logfile, "%s", enc->stats_out);
1833 pkt.data= bit_buffer;
1835 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1836 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1837 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1849 static void print_sdp(AVFormatContext **avc, int n)
1853 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1854 printf("SDP:\n%s\n", sdp);
1858 static int copy_chapters(int infile, int outfile)
1860 AVFormatContext *is = input_files[infile];
1861 AVFormatContext *os = output_files[outfile];
1864 for (i = 0; i < is->nb_chapters; i++) {
1865 AVChapter *in_ch = is->chapters[i], *out_ch;
1866 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1867 AV_TIME_BASE_Q, in_ch->time_base);
1868 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1869 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1872 if (in_ch->end < ts_off)
1874 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1877 out_ch = av_mallocz(sizeof(AVChapter));
1879 return AVERROR(ENOMEM);
1881 out_ch->id = in_ch->id;
1882 out_ch->time_base = in_ch->time_base;
1883 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1884 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1886 if (metadata_chapters_autocopy)
1887 av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1890 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1892 return AVERROR(ENOMEM);
1893 os->chapters[os->nb_chapters - 1] = out_ch;
1898 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1899 AVCodecContext *avctx)
1905 for (p = kf; *p; p++)
1908 ost->forced_kf_count = n;
1909 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1910 if (!ost->forced_kf_pts) {
1911 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1914 for (i = 0; i < n; i++) {
1915 p = i ? strchr(p, ',') + 1 : kf;
1916 t = parse_time_or_die("force_key_frames", p, 1);
1917 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1922 * The following code is the main loop of the file converter
1924 static int transcode(AVFormatContext **output_files,
1925 int nb_output_files,
1926 AVFormatContext **input_files,
1928 AVStreamMap *stream_maps, int nb_stream_maps)
1930 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1931 AVFormatContext *is, *os;
1932 AVCodecContext *codec, *icodec;
1933 AVOutputStream *ost, **ost_table = NULL;
1934 AVInputStream *ist, **ist_table = NULL;
1935 AVInputFile *file_table;
1939 uint8_t no_packet[MAX_FILES]={0};
1940 int no_packet_count=0;
1942 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1946 /* input stream init */
1948 for(i=0;i<nb_input_files;i++) {
1949 is = input_files[i];
1950 file_table[i].ist_index = j;
1951 file_table[i].nb_streams = is->nb_streams;
1952 j += is->nb_streams;
1956 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1960 for(i=0;i<nb_istreams;i++) {
1961 ist = av_mallocz(sizeof(AVInputStream));
1967 for(i=0;i<nb_input_files;i++) {
1968 is = input_files[i];
1969 for(k=0;k<is->nb_streams;k++) {
1970 ist = ist_table[j++];
1971 ist->st = is->streams[k];
1972 ist->file_index = i;
1974 ist->discard = 1; /* the stream is discarded by default
1978 ist->start = av_gettime();
1983 /* output stream init */
1985 for(i=0;i<nb_output_files;i++) {
1986 os = output_files[i];
1987 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1988 dump_format(output_files[i], i, output_files[i]->filename, 1);
1989 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1990 ret = AVERROR(EINVAL);
1993 nb_ostreams += os->nb_streams;
1995 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1996 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1997 ret = AVERROR(EINVAL);
2001 /* Sanity check the mapping args -- do the input files & streams exist? */
2002 for(i=0;i<nb_stream_maps;i++) {
2003 int fi = stream_maps[i].file_index;
2004 int si = stream_maps[i].stream_index;
2006 if (fi < 0 || fi > nb_input_files - 1 ||
2007 si < 0 || si > file_table[fi].nb_streams - 1) {
2008 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2009 ret = AVERROR(EINVAL);
2012 fi = stream_maps[i].sync_file_index;
2013 si = stream_maps[i].sync_stream_index;
2014 if (fi < 0 || fi > nb_input_files - 1 ||
2015 si < 0 || si > file_table[fi].nb_streams - 1) {
2016 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2017 ret = AVERROR(EINVAL);
2022 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2026 for(k=0;k<nb_output_files;k++) {
2027 os = output_files[k];
2028 for(i=0;i<os->nb_streams;i++,n++) {
2030 ost = ost_table[n] = output_streams_for_file[k][i];
2031 ost->st = os->streams[i];
2032 if (nb_stream_maps > 0) {
2033 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2034 stream_maps[n].stream_index;
2036 /* Sanity check that the stream types match */
2037 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2038 int i= ost->file_index;
2039 dump_format(output_files[i], i, output_files[i]->filename, 1);
2040 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2041 stream_maps[n].file_index, stream_maps[n].stream_index,
2042 ost->file_index, ost->index);
2047 int best_nb_frames=-1;
2048 /* get corresponding input stream index : we select the first one with the right type */
2050 for(j=0;j<nb_istreams;j++) {
2055 AVFormatContext *f= input_files[ ist->file_index ];
2057 for(pi=0; pi<f->nb_programs; pi++){
2058 AVProgram *p= f->programs[pi];
2059 if(p->id == opt_programid)
2060 for(si=0; si<p->nb_stream_indexes; si++){
2061 if(f->streams[ p->stream_index[si] ] == ist->st)
2066 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2067 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2068 if(best_nb_frames < ist->st->codec_info_nb_frames){
2069 best_nb_frames= ist->st->codec_info_nb_frames;
2070 ost->source_index = j;
2077 if(! opt_programid) {
2078 /* try again and reuse existing stream */
2079 for(j=0;j<nb_istreams;j++) {
2081 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2082 && ist->st->discard != AVDISCARD_ALL) {
2083 ost->source_index = j;
2089 int i= ost->file_index;
2090 dump_format(output_files[i], i, output_files[i]->filename, 1);
2091 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2092 ost->file_index, ost->index);
2097 ist = ist_table[ost->source_index];
2099 ost->sync_ist = (nb_stream_maps > 0) ?
2100 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2101 stream_maps[n].sync_stream_index] : ist;
2105 /* for each output stream, we compute the right encoding parameters */
2106 for(i=0;i<nb_ostreams;i++) {
2108 os = output_files[ost->file_index];
2109 ist = ist_table[ost->source_index];
2111 codec = ost->st->codec;
2112 icodec = ist->st->codec;
2114 if (metadata_streams_autocopy)
2115 av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2116 AV_METADATA_DONT_OVERWRITE);
2118 ost->st->disposition = ist->st->disposition;
2119 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2120 codec->chroma_sample_location = icodec->chroma_sample_location;
2122 if (ost->st->stream_copy) {
2123 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2125 if (extra_size > INT_MAX)
2128 /* if stream_copy is selected, no need to decode or encode */
2129 codec->codec_id = icodec->codec_id;
2130 codec->codec_type = icodec->codec_type;
2132 if(!codec->codec_tag){
2133 if( !os->oformat->codec_tag
2134 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2135 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2136 codec->codec_tag = icodec->codec_tag;
2139 codec->bit_rate = icodec->bit_rate;
2140 codec->rc_max_rate = icodec->rc_max_rate;
2141 codec->rc_buffer_size = icodec->rc_buffer_size;
2142 codec->extradata= av_mallocz(extra_size);
2143 if (!codec->extradata)
2145 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2146 codec->extradata_size= icodec->extradata_size;
2147 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2148 codec->time_base = icodec->time_base;
2149 codec->time_base.num *= icodec->ticks_per_frame;
2150 av_reduce(&codec->time_base.num, &codec->time_base.den,
2151 codec->time_base.num, codec->time_base.den, INT_MAX);
2153 codec->time_base = ist->st->time_base;
2154 switch(codec->codec_type) {
2155 case AVMEDIA_TYPE_AUDIO:
2156 if(audio_volume != 256) {
2157 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2160 codec->channel_layout = icodec->channel_layout;
2161 codec->sample_rate = icodec->sample_rate;
2162 codec->channels = icodec->channels;
2163 codec->frame_size = icodec->frame_size;
2164 codec->block_align= icodec->block_align;
2165 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2166 codec->block_align= 0;
2167 if(codec->codec_id == CODEC_ID_AC3)
2168 codec->block_align= 0;
2170 case AVMEDIA_TYPE_VIDEO:
2171 codec->pix_fmt = icodec->pix_fmt;
2172 codec->width = icodec->width;
2173 codec->height = icodec->height;
2174 codec->has_b_frames = icodec->has_b_frames;
2176 case AVMEDIA_TYPE_SUBTITLE:
2177 codec->width = icodec->width;
2178 codec->height = icodec->height;
2184 switch(codec->codec_type) {
2185 case AVMEDIA_TYPE_AUDIO:
2186 ost->fifo= av_fifo_alloc(1024);
2189 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2190 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2191 icodec->request_channels = codec->channels;
2192 ist->decoding_needed = 1;
2193 ost->encoding_needed = 1;
2194 ost->resample_sample_fmt = icodec->sample_fmt;
2195 ost->resample_sample_rate = icodec->sample_rate;
2196 ost->resample_channels = icodec->channels;
2198 case AVMEDIA_TYPE_VIDEO:
2199 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2200 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2203 ost->video_resample = (codec->width != icodec->width ||
2204 codec->height != icodec->height ||
2205 (codec->pix_fmt != icodec->pix_fmt));
2206 if (ost->video_resample) {
2207 #if !CONFIG_AVFILTER
2208 avcodec_get_frame_defaults(&ost->pict_tmp);
2209 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2210 codec->width, codec->height)) {
2211 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2214 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2215 ost->img_resample_ctx = sws_getContext(
2222 sws_flags, NULL, NULL, NULL);
2223 if (ost->img_resample_ctx == NULL) {
2224 fprintf(stderr, "Cannot get resampling context\n");
2228 ost->original_height = icodec->height;
2229 ost->original_width = icodec->width;
2231 codec->bits_per_raw_sample= 0;
2233 ost->resample_height = icodec->height;
2234 ost->resample_width = icodec->width;
2235 ost->resample_pix_fmt= icodec->pix_fmt;
2236 ost->encoding_needed = 1;
2237 ist->decoding_needed = 1;
2240 if (configure_filters(ist, ost)) {
2241 fprintf(stderr, "Error opening filters!\n");
2246 case AVMEDIA_TYPE_SUBTITLE:
2247 ost->encoding_needed = 1;
2248 ist->decoding_needed = 1;
2255 if (ost->encoding_needed &&
2256 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2257 char logfilename[1024];
2260 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2261 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2263 if (codec->flags & CODEC_FLAG_PASS1) {
2264 f = fopen(logfilename, "wb");
2266 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2272 size_t logbuffer_size;
2273 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2274 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2277 codec->stats_in = logbuffer;
2281 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2282 int size= codec->width * codec->height;
2283 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2288 bit_buffer = av_malloc(bit_buffer_size);
2290 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2292 ret = AVERROR(ENOMEM);
2296 /* open each encoder */
2297 for(i=0;i<nb_ostreams;i++) {
2299 if (ost->encoding_needed) {
2300 AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2301 AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2303 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2305 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2306 ost->st->codec->codec_id, ost->file_index, ost->index);
2307 ret = AVERROR(EINVAL);
2310 if (dec->subtitle_header) {
2311 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2312 if (!ost->st->codec->subtitle_header) {
2313 ret = AVERROR(ENOMEM);
2316 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2317 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2319 if (avcodec_open(ost->st->codec, codec) < 0) {
2320 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2321 ost->file_index, ost->index);
2322 ret = AVERROR(EINVAL);
2325 extra_size += ost->st->codec->extradata_size;
2329 /* open each decoder */
2330 for(i=0;i<nb_istreams;i++) {
2332 if (ist->decoding_needed) {
2333 AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2335 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2337 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2338 ist->st->codec->codec_id, ist->file_index, ist->index);
2339 ret = AVERROR(EINVAL);
2342 if (avcodec_open(ist->st->codec, codec) < 0) {
2343 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2344 ist->file_index, ist->index);
2345 ret = AVERROR(EINVAL);
2348 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2349 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2354 for(i=0;i<nb_istreams;i++) {
2358 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2359 ist->next_pts = AV_NOPTS_VALUE;
2360 init_pts_correction(&ist->pts_ctx);
2364 /* set meta data information from input file if required */
2365 for (i=0;i<nb_meta_data_maps;i++) {
2366 AVFormatContext *files[2];
2367 AVMetadata **meta[2];
2370 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2371 if ((index) < 0 || (index) >= (nb_elems)) {\
2372 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2374 ret = AVERROR(EINVAL);\
2378 int out_file_index = meta_data_maps[i][0].file;
2379 int in_file_index = meta_data_maps[i][1].file;
2380 if (in_file_index < 0 || out_file_index < 0)
2382 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2383 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2385 files[0] = output_files[out_file_index];
2386 files[1] = input_files[in_file_index];
2388 for (j = 0; j < 2; j++) {
2389 AVMetaDataMap *map = &meta_data_maps[i][j];
2391 switch (map->type) {
2393 meta[j] = &files[j]->metadata;
2396 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2397 meta[j] = &files[j]->streams[map->index]->metadata;
2400 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2401 meta[j] = &files[j]->chapters[map->index]->metadata;
2404 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2405 meta[j] = &files[j]->programs[map->index]->metadata;
2410 av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2413 /* copy global metadata by default */
2414 if (metadata_global_autocopy) {
2416 for (i = 0; i < nb_output_files; i++)
2417 av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2418 AV_METADATA_DONT_OVERWRITE);
2421 /* copy chapters according to chapter maps */
2422 for (i = 0; i < nb_chapter_maps; i++) {
2423 int infile = chapter_maps[i].in_file;
2424 int outfile = chapter_maps[i].out_file;
2426 if (infile < 0 || outfile < 0)
2428 if (infile >= nb_input_files) {
2429 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2430 ret = AVERROR(EINVAL);
2433 if (outfile >= nb_output_files) {
2434 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2435 ret = AVERROR(EINVAL);
2438 copy_chapters(infile, outfile);
2441 /* copy chapters from the first input file that has them*/
2442 if (!nb_chapter_maps)
2443 for (i = 0; i < nb_input_files; i++) {
2444 if (!input_files[i]->nb_chapters)
2447 for (j = 0; j < nb_output_files; j++)
2448 if ((ret = copy_chapters(i, j)) < 0)
2453 /* open files and write file headers */
2454 for(i=0;i<nb_output_files;i++) {
2455 os = output_files[i];
2456 if (av_write_header(os) < 0) {
2457 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2458 ret = AVERROR(EINVAL);
2461 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2467 /* dump the file output parameters - cannot be done before in case
2469 for(i=0;i<nb_output_files;i++) {
2470 dump_format(output_files[i], i, output_files[i]->filename, 1);
2473 /* dump the stream mapping */
2475 fprintf(stderr, "Stream mapping:\n");
2476 for(i=0;i<nb_ostreams;i++) {
2478 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2479 ist_table[ost->source_index]->file_index,
2480 ist_table[ost->source_index]->index,
2483 if (ost->sync_ist != ist_table[ost->source_index])
2484 fprintf(stderr, " [sync #%d.%d]",
2485 ost->sync_ist->file_index,
2486 ost->sync_ist->index);
2487 fprintf(stderr, "\n");
2492 fprintf(stderr, "%s\n", error);
2497 print_sdp(output_files, nb_output_files);
2500 if (!using_stdin && verbose >= 0) {
2501 fprintf(stderr, "Press [q] to stop encoding\n");
2502 url_set_interrupt_cb(decode_interrupt_cb);
2506 timer_start = av_gettime();
2508 for(; received_sigterm == 0;) {
2509 int file_index, ist_index;
2517 /* if 'q' pressed, exits */
2521 /* read_key() returns 0 on EOF */
2527 /* select the stream that we must read now by looking at the
2528 smallest output pts */
2530 for(i=0;i<nb_ostreams;i++) {
2533 os = output_files[ost->file_index];
2534 ist = ist_table[ost->source_index];
2535 if(ist->is_past_recording_time || no_packet[ist->file_index])
2537 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2538 ipts = (double)ist->pts;
2539 if (!file_table[ist->file_index].eof_reached){
2540 if(ipts < ipts_min) {
2542 if(input_sync ) file_index = ist->file_index;
2544 if(opts < opts_min) {
2546 if(!input_sync) file_index = ist->file_index;
2549 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2554 /* if none, if is finished */
2555 if (file_index < 0) {
2556 if(no_packet_count){
2558 memset(no_packet, 0, sizeof(no_packet));
2565 /* finish if limit size exhausted */
2566 if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2569 /* read a frame from it and output it in the fifo */
2570 is = input_files[file_index];
2571 ret= av_read_frame(is, &pkt);
2572 if(ret == AVERROR(EAGAIN)){
2573 no_packet[file_index]=1;
2578 file_table[file_index].eof_reached = 1;
2586 memset(no_packet, 0, sizeof(no_packet));
2589 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2591 /* the following test is needed in case new streams appear
2592 dynamically in stream : we ignore them */
2593 if (pkt.stream_index >= file_table[file_index].nb_streams)
2594 goto discard_packet;
2595 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2596 ist = ist_table[ist_index];
2598 goto discard_packet;
2600 if (pkt.dts != AV_NOPTS_VALUE)
2601 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2602 if (pkt.pts != AV_NOPTS_VALUE)
2603 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2605 if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2606 && input_files_ts_scale[file_index][pkt.stream_index]){
2607 if(pkt.pts != AV_NOPTS_VALUE)
2608 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2609 if(pkt.dts != AV_NOPTS_VALUE)
2610 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2613 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2614 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2615 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2616 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2617 int64_t delta= pkt_dts - ist->next_pts;
2618 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2619 input_files_ts_offset[ist->file_index]-= delta;
2621 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2622 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2623 if(pkt.pts != AV_NOPTS_VALUE)
2624 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2628 /* finish if recording time exhausted */
2629 if (recording_time != INT64_MAX &&
2630 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2631 ist->is_past_recording_time = 1;
2632 goto discard_packet;
2635 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2636 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2639 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2640 ist->file_index, ist->index);
2643 av_free_packet(&pkt);
2648 av_free_packet(&pkt);
2650 /* dump report by using the output first video and audio streams */
2651 print_report(output_files, ost_table, nb_ostreams, 0);
2654 /* at the end of stream, we must flush the decoder buffers */
2655 for(i=0;i<nb_istreams;i++) {
2657 if (ist->decoding_needed) {
2658 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2664 /* write the trailer if needed and close file */
2665 for(i=0;i<nb_output_files;i++) {
2666 os = output_files[i];
2667 av_write_trailer(os);
2670 /* dump report by using the first video and audio streams */
2671 print_report(output_files, ost_table, nb_ostreams, 1);
2673 /* close each encoder */
2674 for(i=0;i<nb_ostreams;i++) {
2676 if (ost->encoding_needed) {
2677 av_freep(&ost->st->codec->stats_in);
2678 avcodec_close(ost->st->codec);
2682 /* close each decoder */
2683 for(i=0;i<nb_istreams;i++) {
2685 if (ist->decoding_needed) {
2686 avcodec_close(ist->st->codec);
2691 avfilter_graph_free(graph);
2700 av_freep(&bit_buffer);
2701 av_free(file_table);
2704 for(i=0;i<nb_istreams;i++) {
2711 for(i=0;i<nb_ostreams;i++) {
2714 if (ost->st->stream_copy)
2715 av_freep(&ost->st->codec->extradata);
2717 fclose(ost->logfile);
2718 ost->logfile = NULL;
2720 av_fifo_free(ost->fifo); /* works even if fifo is not
2721 initialized but set to zero */
2722 av_freep(&ost->st->codec->subtitle_header);
2723 av_free(ost->pict_tmp.data[0]);
2724 av_free(ost->forced_kf_pts);
2725 if (ost->video_resample)
2726 sws_freeContext(ost->img_resample_ctx);
2728 audio_resample_close(ost->resample);
2729 if (ost->reformat_ctx)
2730 av_audio_convert_free(ost->reformat_ctx);
2739 static void opt_format(const char *arg)
2741 last_asked_format = arg;
2744 static void opt_video_rc_override_string(const char *arg)
2746 video_rc_override_string = arg;
2749 static int opt_me_threshold(const char *opt, const char *arg)
2751 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2755 static int opt_verbose(const char *opt, const char *arg)
2757 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2761 static int opt_frame_rate(const char *opt, const char *arg)
2763 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2764 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2770 static int opt_bitrate(const char *opt, const char *arg)
2772 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2774 opt_default(opt, arg);
2776 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2777 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2782 static int opt_frame_crop(const char *opt, const char *arg)
2784 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2785 return AVERROR(EINVAL);
2788 static void opt_frame_size(const char *arg)
2790 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2791 fprintf(stderr, "Incorrect frame size\n");
2796 static int opt_pad(const char *opt, const char *arg) {
2797 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2801 static void opt_frame_pix_fmt(const char *arg)
2803 if (strcmp(arg, "list")) {
2804 frame_pix_fmt = av_get_pix_fmt(arg);
2805 if (frame_pix_fmt == PIX_FMT_NONE) {
2806 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2815 static void opt_frame_aspect_ratio(const char *arg)
2822 p = strchr(arg, ':');
2824 x = strtol(arg, &end, 10);
2826 y = strtol(end+1, &end, 10);
2828 ar = (double)x / (double)y;
2830 ar = strtod(arg, NULL);
2833 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2836 frame_aspect_ratio = ar;
2839 static int opt_metadata(const char *opt, const char *arg)
2841 char *mid= strchr(arg, '=');
2844 fprintf(stderr, "Missing =\n");
2849 av_metadata_set2(&metadata, arg, mid, 0);
2854 static void opt_qscale(const char *arg)
2856 video_qscale = atof(arg);
2857 if (video_qscale <= 0 ||
2858 video_qscale > 255) {
2859 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2864 static void opt_top_field_first(const char *arg)
2866 top_field_first= atoi(arg);
2869 static int opt_thread_count(const char *opt, const char *arg)
2871 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2874 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2879 static void opt_audio_sample_fmt(const char *arg)
2881 if (strcmp(arg, "list")) {
2882 audio_sample_fmt = av_get_sample_fmt(arg);
2883 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2884 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2888 list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2893 static int opt_audio_rate(const char *opt, const char *arg)
2895 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2899 static int opt_audio_channels(const char *opt, const char *arg)
2901 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905 static void opt_video_channel(const char *arg)
2907 video_channel = strtol(arg, NULL, 0);
2910 static void opt_video_standard(const char *arg)
2912 video_standard = av_strdup(arg);
2915 static void opt_codec(int *pstream_copy, char **pcodec_name,
2916 int codec_type, const char *arg)
2918 av_freep(pcodec_name);
2919 if (!strcmp(arg, "copy")) {
2922 *pcodec_name = av_strdup(arg);
2926 static void opt_audio_codec(const char *arg)
2928 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2931 static void opt_video_codec(const char *arg)
2933 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2936 static void opt_subtitle_codec(const char *arg)
2938 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2941 static int opt_codec_tag(const char *opt, const char *arg)
2944 uint32_t *codec_tag;
2946 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2947 !strcmp(opt, "vtag") ? &video_codec_tag :
2948 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2952 *codec_tag = strtol(arg, &tail, 0);
2954 *codec_tag = AV_RL32(arg);
2959 static void opt_map(const char *arg)
2964 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2965 m = &stream_maps[nb_stream_maps-1];
2967 m->file_index = strtol(arg, &p, 0);
2971 m->stream_index = strtol(p, &p, 0);
2974 m->sync_file_index = strtol(p, &p, 0);
2977 m->sync_stream_index = strtol(p, &p, 0);
2979 m->sync_file_index = m->file_index;
2980 m->sync_stream_index = m->stream_index;
2984 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2995 *index = strtol(++arg, endptr, 0);
2998 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3005 static void opt_map_meta_data(const char *arg)
3007 AVMetaDataMap *m, *m1;
3010 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3011 &nb_meta_data_maps, nb_meta_data_maps + 1);
3013 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3014 m->file = strtol(arg, &p, 0);
3015 parse_meta_type(p, &m->type, &m->index, &p);
3019 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3020 m1->file = strtol(p, &p, 0);
3021 parse_meta_type(p, &m1->type, &m1->index, &p);
3023 if (m->type == 'g' || m1->type == 'g')
3024 metadata_global_autocopy = 0;
3025 if (m->type == 's' || m1->type == 's')
3026 metadata_streams_autocopy = 0;
3027 if (m->type == 'c' || m1->type == 'c')
3028 metadata_chapters_autocopy = 0;
3031 static void opt_map_chapters(const char *arg)
3036 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3037 nb_chapter_maps + 1);
3038 c = &chapter_maps[nb_chapter_maps - 1];
3039 c->out_file = strtol(arg, &p, 0);
3043 c->in_file = strtol(p, &p, 0);
3046 static void opt_input_ts_scale(const char *arg)
3048 unsigned int stream;
3052 stream = strtol(arg, &p, 0);
3055 scale= strtod(p, &p);
3057 if(stream >= MAX_STREAMS)
3060 input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3061 input_files_ts_scale[nb_input_files][stream]= scale;
3064 static int opt_recording_time(const char *opt, const char *arg)
3066 recording_time = parse_time_or_die(opt, arg, 1);
3070 static int opt_start_time(const char *opt, const char *arg)
3072 start_time = parse_time_or_die(opt, arg, 1);
3076 static int opt_recording_timestamp(const char *opt, const char *arg)
3078 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3082 static int opt_input_ts_offset(const char *opt, const char *arg)
3084 input_ts_offset = parse_time_or_die(opt, arg, 1);
3088 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3090 const char *codec_string = encoder ? "encoder" : "decoder";
3094 return CODEC_ID_NONE;
3096 avcodec_find_encoder_by_name(name) :
3097 avcodec_find_decoder_by_name(name);
3099 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3102 if(codec->type != type) {
3103 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3106 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3107 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3108 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3109 "results.\nAdd '-strict experimental' if you want to use it.\n",
3110 codec_string, codec->name);
3112 avcodec_find_encoder(codec->id) :
3113 avcodec_find_decoder(codec->id);
3114 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3115 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3116 codec_string, codec->name);
3122 static void opt_input_file(const char *filename)
3124 AVFormatContext *ic;
3125 AVFormatParameters params, *ap = ¶ms;
3126 AVInputFormat *file_iformat = NULL;
3127 int err, i, ret, rfps, rfps_base;
3130 if (last_asked_format) {
3131 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3132 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3135 last_asked_format = NULL;
3138 if (!strcmp(filename, "-"))
3141 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3142 !strcmp(filename, "/dev/stdin");
3144 /* get default parameters from command line */
3145 ic = avformat_alloc_context();
3147 print_error(filename, AVERROR(ENOMEM));
3151 memset(ap, 0, sizeof(*ap));
3152 ap->prealloced_context = 1;
3153 ap->sample_rate = audio_sample_rate;
3154 ap->channels = audio_channels;
3155 ap->time_base.den = frame_rate.num;
3156 ap->time_base.num = frame_rate.den;
3157 ap->width = frame_width;
3158 ap->height = frame_height;
3159 ap->pix_fmt = frame_pix_fmt;
3160 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3161 ap->channel = video_channel;
3162 ap->standard = video_standard;
3164 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3166 ic->video_codec_id =
3167 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
3168 avcodec_opts[AVMEDIA_TYPE_VIDEO ]->strict_std_compliance);
3169 ic->audio_codec_id =
3170 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
3171 avcodec_opts[AVMEDIA_TYPE_AUDIO ]->strict_std_compliance);
3172 ic->subtitle_codec_id=
3173 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3174 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3175 ic->flags |= AVFMT_FLAG_NONBLOCK;
3177 /* open the input file with generic libav function */
3178 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3180 print_error(filename, err);
3186 for(i=0; i<ic->nb_streams; i++){
3187 ic->streams[i]->discard= AVDISCARD_ALL;
3189 for(i=0; i<ic->nb_programs; i++){
3190 AVProgram *p= ic->programs[i];
3191 if(p->id != opt_programid){
3192 p->discard = AVDISCARD_ALL;
3195 for(j=0; j<p->nb_stream_indexes; j++){
3196 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3201 fprintf(stderr, "Specified program id not found\n");
3207 ic->loop_input = loop_input;
3209 /* If not enough info to get the stream parameters, we decode the
3210 first frames to get it. (used in mpeg case for example) */
3211 ret = av_find_stream_info(ic);
3212 if (ret < 0 && verbose >= 0) {
3213 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3214 av_close_input_file(ic);
3218 timestamp = start_time;
3219 /* add the stream start time */
3220 if (ic->start_time != AV_NOPTS_VALUE)
3221 timestamp += ic->start_time;
3223 /* if seeking requested, we execute it */
3224 if (start_time != 0) {
3225 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3227 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3228 filename, (double)timestamp / AV_TIME_BASE);
3230 /* reset seek info */
3234 /* update the current parameters so that they match the one of the input stream */
3235 for(i=0;i<ic->nb_streams;i++) {
3236 AVStream *st = ic->streams[i];
3237 AVCodecContext *dec = st->codec;
3238 avcodec_thread_init(dec, thread_count);
3239 input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3240 switch (dec->codec_type) {
3241 case AVMEDIA_TYPE_AUDIO:
3242 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3243 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3244 //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3245 channel_layout = dec->channel_layout;
3246 audio_channels = dec->channels;
3247 audio_sample_rate = dec->sample_rate;
3248 audio_sample_fmt = dec->sample_fmt;
3250 st->discard= AVDISCARD_ALL;
3251 /* Note that av_find_stream_info can add more streams, and we
3252 * currently have no chance of setting up lowres decoding
3253 * early enough for them. */
3255 audio_sample_rate >>= dec->lowres;
3257 case AVMEDIA_TYPE_VIDEO:
3258 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3259 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3260 frame_height = dec->height;
3261 frame_width = dec->width;
3262 if(ic->streams[i]->sample_aspect_ratio.num)
3263 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3265 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3266 frame_aspect_ratio *= (float) dec->width / dec->height;
3267 frame_pix_fmt = dec->pix_fmt;
3268 rfps = ic->streams[i]->r_frame_rate.num;
3269 rfps_base = ic->streams[i]->r_frame_rate.den;
3271 dec->flags |= CODEC_FLAG_EMU_EDGE;
3272 frame_height >>= dec->lowres;
3273 frame_width >>= dec->lowres;
3274 dec->height = frame_height;
3275 dec->width = frame_width;
3278 dec->debug |= FF_DEBUG_MV;
3280 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3283 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3284 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3286 (float)rfps / rfps_base, rfps, rfps_base);
3288 /* update the current frame rate to match the stream frame rate */
3289 frame_rate.num = rfps;
3290 frame_rate.den = rfps_base;
3293 st->discard= AVDISCARD_ALL;
3294 else if(video_discard)
3295 st->discard= video_discard;
3297 case AVMEDIA_TYPE_DATA:
3299 case AVMEDIA_TYPE_SUBTITLE:
3300 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3301 if(subtitle_disable)
3302 st->discard = AVDISCARD_ALL;
3304 case AVMEDIA_TYPE_ATTACHMENT:
3305 case AVMEDIA_TYPE_UNKNOWN:
3312 input_files[nb_input_files] = ic;
3313 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3314 /* dump the file content */
3316 dump_format(ic, nb_input_files, filename, 0);
3322 av_freep(&video_codec_name);
3323 av_freep(&audio_codec_name);
3324 av_freep(&subtitle_codec_name);
3327 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3328 int *has_subtitle_ptr)
3330 int has_video, has_audio, has_subtitle, i, j;
3331 AVFormatContext *ic;
3336 for(j=0;j<nb_input_files;j++) {
3337 ic = input_files[j];
3338 for(i=0;i<ic->nb_streams;i++) {
3339 AVCodecContext *enc = ic->streams[i]->codec;
3340 switch(enc->codec_type) {
3341 case AVMEDIA_TYPE_AUDIO:
3344 case AVMEDIA_TYPE_VIDEO:
3347 case AVMEDIA_TYPE_SUBTITLE:
3350 case AVMEDIA_TYPE_DATA:
3351 case AVMEDIA_TYPE_ATTACHMENT:
3352 case AVMEDIA_TYPE_UNKNOWN:
3359 *has_video_ptr = has_video;
3360 *has_audio_ptr = has_audio;
3361 *has_subtitle_ptr = has_subtitle;
3364 static void new_video_stream(AVFormatContext *oc, int file_idx)
3367 AVOutputStream *ost;
3368 AVCodecContext *video_enc;
3369 enum CodecID codec_id = CODEC_ID_NONE;
3370 AVCodec *codec= NULL;
3372 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3374 fprintf(stderr, "Could not alloc stream\n");
3377 ost = new_output_stream(oc, file_idx);
3379 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3380 if(!video_stream_copy){
3381 if (video_codec_name) {
3382 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3383 avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3384 codec = avcodec_find_encoder_by_name(video_codec_name);
3385 output_codecs[nb_output_codecs-1] = codec;
3387 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3388 codec = avcodec_find_encoder(codec_id);
3392 avcodec_get_context_defaults3(st->codec, codec);
3393 ost->bitstream_filters = video_bitstream_filters;
3394 video_bitstream_filters= NULL;
3396 avcodec_thread_init(st->codec, thread_count);
3398 video_enc = st->codec;
3401 video_enc->codec_tag= video_codec_tag;
3403 if( (video_global_header&1)
3404 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3405 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3406 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3408 if(video_global_header&2){
3409 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3410 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3413 if (video_stream_copy) {
3414 st->stream_copy = 1;
3415 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3416 video_enc->sample_aspect_ratio =
3417 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3421 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3423 video_enc->codec_id = codec_id;
3424 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3426 if (codec && codec->supported_framerates && !force_fps)
3427 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3428 video_enc->time_base.den = fps.num;
3429 video_enc->time_base.num = fps.den;
3431 video_enc->width = frame_width;
3432 video_enc->height = frame_height;
3433 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3434 video_enc->pix_fmt = frame_pix_fmt;
3435 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3437 choose_pixel_fmt(st, codec);
3440 video_enc->gop_size = 0;
3441 if (video_qscale || same_quality) {
3442 video_enc->flags |= CODEC_FLAG_QSCALE;
3443 video_enc->global_quality=
3444 st->quality = FF_QP2LAMBDA * video_qscale;
3448 video_enc->intra_matrix = intra_matrix;
3450 video_enc->inter_matrix = inter_matrix;
3452 p= video_rc_override_string;
3455 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3457 fprintf(stderr, "error parsing rc_override\n");
3460 video_enc->rc_override=
3461 av_realloc(video_enc->rc_override,
3462 sizeof(RcOverride)*(i+1));
3463 video_enc->rc_override[i].start_frame= start;
3464 video_enc->rc_override[i].end_frame = end;
3466 video_enc->rc_override[i].qscale= q;
3467 video_enc->rc_override[i].quality_factor= 1.0;
3470 video_enc->rc_override[i].qscale= 0;
3471 video_enc->rc_override[i].quality_factor= -q/100.0;
3476 video_enc->rc_override_count=i;
3477 if (!video_enc->rc_initial_buffer_occupancy)
3478 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3479 video_enc->me_threshold= me_threshold;
3480 video_enc->intra_dc_precision= intra_dc_precision - 8;
3483 video_enc->flags|= CODEC_FLAG_PSNR;
3488 video_enc->flags |= CODEC_FLAG_PASS1;
3490 video_enc->flags |= CODEC_FLAG_PASS2;
3494 if (forced_key_frames)
3495 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3497 if (video_language) {
3498 av_metadata_set2(&st->metadata, "language", video_language, 0);
3499 av_freep(&video_language);
3502 /* reset some key parameters */
3504 av_freep(&video_codec_name);
3505 av_freep(&forced_key_frames);
3506 video_stream_copy = 0;
3507 frame_pix_fmt = PIX_FMT_NONE;
3510 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3513 AVOutputStream *ost;
3514 AVCodec *codec= NULL;
3515 AVCodecContext *audio_enc;
3516 enum CodecID codec_id = CODEC_ID_NONE;
3518 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3520 fprintf(stderr, "Could not alloc stream\n");
3523 ost = new_output_stream(oc, file_idx);
3525 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3526 if(!audio_stream_copy){
3527 if (audio_codec_name) {
3528 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3529 avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3530 codec = avcodec_find_encoder_by_name(audio_codec_name);
3531 output_codecs[nb_output_codecs-1] = codec;
3533 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3534 codec = avcodec_find_encoder(codec_id);
3538 avcodec_get_context_defaults3(st->codec, codec);
3540 ost->bitstream_filters = audio_bitstream_filters;
3541 audio_bitstream_filters= NULL;
3543 avcodec_thread_init(st->codec, thread_count);
3545 audio_enc = st->codec;
3546 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3549 audio_enc->codec_tag= audio_codec_tag;
3551 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3552 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3553 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3555 if (audio_stream_copy) {
3556 st->stream_copy = 1;
3557 audio_enc->channels = audio_channels;
3558 audio_enc->sample_rate = audio_sample_rate;
3560 audio_enc->codec_id = codec_id;
3561 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3563 if (audio_qscale > QSCALE_NONE) {
3564 audio_enc->flags |= CODEC_FLAG_QSCALE;
3565 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3567 audio_enc->channels = audio_channels;
3568 audio_enc->sample_fmt = audio_sample_fmt;
3569 audio_enc->sample_rate = audio_sample_rate;
3570 audio_enc->channel_layout = channel_layout;
3571 if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3572 audio_enc->channel_layout = 0;
3573 choose_sample_fmt(st, codec);
3574 choose_sample_rate(st, codec);
3576 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3577 if (audio_language) {
3578 av_metadata_set2(&st->metadata, "language", audio_language, 0);
3579 av_freep(&audio_language);
3582 /* reset some key parameters */
3584 av_freep(&audio_codec_name);
3585 audio_stream_copy = 0;
3588 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3591 AVOutputStream *ost;
3592 AVCodec *codec=NULL;
3593 AVCodecContext *subtitle_enc;
3594 enum CodecID codec_id = CODEC_ID_NONE;
3596 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3598 fprintf(stderr, "Could not alloc stream\n");
3601 ost = new_output_stream(oc, file_idx);
3602 subtitle_enc = st->codec;
3603 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3604 if(!subtitle_stream_copy){
3605 if (subtitle_codec_name) {
3606 codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3607 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3608 codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3610 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3611 codec = avcodec_find_encoder(codec_id);
3614 avcodec_get_context_defaults3(st->codec, codec);
3616 ost->bitstream_filters = subtitle_bitstream_filters;
3617 subtitle_bitstream_filters= NULL;
3619 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3621 if(subtitle_codec_tag)
3622 subtitle_enc->codec_tag= subtitle_codec_tag;
3624 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3625 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3626 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3628 if (subtitle_stream_copy) {
3629 st->stream_copy = 1;
3631 subtitle_enc->codec_id = codec_id;
3632 set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3635 if (subtitle_language) {
3636 av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3637 av_freep(&subtitle_language);
3640 subtitle_disable = 0;
3641 av_freep(&subtitle_codec_name);
3642 subtitle_stream_copy = 0;
3645 static int opt_new_stream(const char *opt, const char *arg)
3647 AVFormatContext *oc;
3648 int file_idx = nb_output_files - 1;
3649 if (nb_output_files <= 0) {
3650 fprintf(stderr, "At least one output file must be specified\n");
3653 oc = output_files[file_idx];
3655 if (!strcmp(opt, "newvideo" )) new_video_stream (oc, file_idx);
3656 else if (!strcmp(opt, "newaudio" )) new_audio_stream (oc, file_idx);
3657 else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3662 /* arg format is "output-stream-index:streamid-value". */
3663 static int opt_streamid(const char *opt, const char *arg)
3669 strncpy(idx_str, arg, sizeof(idx_str));
3670 idx_str[sizeof(idx_str)-1] = '\0';
3671 p = strchr(idx_str, ':');
3674 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3679 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3680 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3681 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3685 static void opt_output_file(const char *filename)
3687 AVFormatContext *oc;
3688 int err, use_video, use_audio, use_subtitle;
3689 int input_has_video, input_has_audio, input_has_subtitle;
3690 AVFormatParameters params, *ap = ¶ms;
3691 AVOutputFormat *file_oformat;
3693 if (!strcmp(filename, "-"))
3696 oc = avformat_alloc_context();
3698 print_error(filename, AVERROR(ENOMEM));
3702 if (last_asked_format) {
3703 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3704 if (!file_oformat) {
3705 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3708 last_asked_format = NULL;
3710 file_oformat = av_guess_format(NULL, filename, NULL);
3711 if (!file_oformat) {
3712 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3718 oc->oformat = file_oformat;
3719 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3721 if (!strcmp(file_oformat->name, "ffm") &&
3722 av_strstart(filename, "http:", NULL)) {
3723 /* special case for files sent to ffserver: we get the stream
3724 parameters from ffserver */
3725 int err = read_ffserver_streams(oc, filename);
3727 print_error(filename, err);
3731 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3732 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3733 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3735 /* disable if no corresponding type found and at least one
3737 if (nb_input_files > 0) {
3738 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3739 &input_has_subtitle);
3740 if (!input_has_video)
3742 if (!input_has_audio)
3744 if (!input_has_subtitle)
3748 /* manual disable */
3749 if (audio_disable) use_audio = 0;
3750 if (video_disable) use_video = 0;
3751 if (subtitle_disable) use_subtitle = 0;
3753 if (use_video) new_video_stream(oc, nb_output_files);
3754 if (use_audio) new_audio_stream(oc, nb_output_files);
3755 if (use_subtitle) new_subtitle_stream(oc, nb_output_files);
3757 oc->timestamp = recording_timestamp;
3759 av_metadata_copy(&oc->metadata, metadata, 0);
3760 av_metadata_free(&metadata);
3763 output_files[nb_output_files++] = oc;
3765 /* check filename in case of an image number is expected */
3766 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3767 if (!av_filename_number_test(oc->filename)) {
3768 print_error(oc->filename, AVERROR_NUMEXPECTED);
3773 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3774 /* test if it already exists to avoid loosing precious files */
3775 if (!file_overwrite &&
3776 (strchr(filename, ':') == NULL ||
3777 filename[1] == ':' ||
3778 av_strstart(filename, "file:", NULL))) {
3779 if (url_exist(filename)) {
3781 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3783 if (!read_yesno()) {
3784 fprintf(stderr, "Not overwriting - exiting\n");
3789 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3796 if ((err = url_fopen(&oc->pb, filename, URL_WRONLY)) < 0) {
3797 print_error(filename, err);
3802 memset(ap, 0, sizeof(*ap));
3803 if (av_set_parameters(oc, ap) < 0) {
3804 fprintf(stderr, "%s: Invalid encoding parameters\n",
3809 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3810 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3811 oc->loop_output = loop_output;
3812 oc->flags |= AVFMT_FLAG_NONBLOCK;
3814 set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
3816 nb_streamid_map = 0;
3817 av_freep(&forced_key_frames);
3820 /* same option as mencoder */
3821 static void opt_pass(const char *pass_str)
3824 pass = atoi(pass_str);
3825 if (pass != 1 && pass != 2) {
3826 fprintf(stderr, "pass number can be only 1 or 2\n");
3832 static int64_t getutime(void)
3835 struct rusage rusage;
3837 getrusage(RUSAGE_SELF, &rusage);
3838 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3839 #elif HAVE_GETPROCESSTIMES
3841 FILETIME c, e, k, u;
3842 proc = GetCurrentProcess();
3843 GetProcessTimes(proc, &c, &e, &k, &u);
3844 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3846 return av_gettime();
3850 static int64_t getmaxrss(void)
3852 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3853 struct rusage rusage;
3854 getrusage(RUSAGE_SELF, &rusage);
3855 return (int64_t)rusage.ru_maxrss * 1024;
3856 #elif HAVE_GETPROCESSMEMORYINFO
3858 PROCESS_MEMORY_COUNTERS memcounters;
3859 proc = GetCurrentProcess();
3860 memcounters.cb = sizeof(memcounters);
3861 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3862 return memcounters.PeakPagefileUsage;
3868 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3871 const char *p = str;
3878 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3885 static void opt_inter_matrix(const char *arg)
3887 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3888 parse_matrix_coeffs(inter_matrix, arg);
3891 static void opt_intra_matrix(const char *arg)
3893 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3894 parse_matrix_coeffs(intra_matrix, arg);
3897 static void show_usage(void)
3899 printf("Hyper fast Audio and Video encoder\n");
3900 printf("usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...\n");
3904 static void show_help(void)
3907 AVOutputFormat *oformat = NULL;
3909 av_log_set_callback(log_callback_help);
3911 show_help_options(options, "Main options:\n",
3912 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3913 show_help_options(options, "\nAdvanced options:\n",
3914 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3916 show_help_options(options, "\nVideo options:\n",
3917 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3919 show_help_options(options, "\nAdvanced Video options:\n",
3920 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3921 OPT_VIDEO | OPT_EXPERT);
3922 show_help_options(options, "\nAudio options:\n",
3923 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3925 show_help_options(options, "\nAdvanced Audio options:\n",
3926 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3927 OPT_AUDIO | OPT_EXPERT);
3928 show_help_options(options, "\nSubtitle options:\n",
3929 OPT_SUBTITLE | OPT_GRAB,
3931 show_help_options(options, "\nAudio/Video grab options:\n",
3935 av_opt_show2(avcodec_opts[0], NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3938 /* individual codec options */
3940 while ((c = av_codec_next(c))) {
3941 if (c->priv_class) {
3942 av_opt_show2(&c->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3947 av_opt_show2(avformat_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3950 /* individual muxer options */
3951 while ((oformat = av_oformat_next(oformat))) {
3952 if (oformat->priv_class) {
3953 av_opt_show2(&oformat->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM, 0);
3958 av_opt_show2(sws_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3961 static void opt_target(const char *arg)
3963 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
3964 static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3966 if(!strncmp(arg, "pal-", 4)) {
3969 } else if(!strncmp(arg, "ntsc-", 5)) {
3972 } else if(!strncmp(arg, "film-", 5)) {
3977 /* Calculate FR via float to avoid int overflow */
3978 fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
3981 } else if((fr == 29970) || (fr == 23976)) {
3984 /* Try to determine PAL/NTSC by peeking in the input files */
3985 if(nb_input_files) {
3987 for(j = 0; j < nb_input_files; j++) {
3988 for(i = 0; i < input_files[j]->nb_streams; i++) {
3989 AVCodecContext *c = input_files[j]->streams[i]->codec;
3990 if(c->codec_type != AVMEDIA_TYPE_VIDEO)
3992 fr = c->time_base.den * 1000 / c->time_base.num;
3996 } else if((fr == 29970) || (fr == 23976)) {
4006 if(verbose && norm != UNKNOWN)
4007 fprintf(stderr, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
4010 if(norm == UNKNOWN) {
4011 fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
4012 fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
4013 fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
4017 if(!strcmp(arg, "vcd")) {
4019 opt_video_codec("mpeg1video");
4020 opt_audio_codec("mp2");
4023 opt_frame_size(norm == PAL ? "352x288" : "352x240");
4024 opt_frame_rate(NULL, frame_rates[norm]);
4025 opt_default("g", norm == PAL ? "15" : "18");
4027 opt_default("b", "1150000");
4028 opt_default("maxrate", "1150000");
4029 opt_default("minrate", "1150000");
4030 opt_default("bufsize", "327680"); // 40*1024*8;
4032 opt_default("ab", "224000");
4033 audio_sample_rate = 44100;
4036 opt_default("packetsize", "2324");
4037 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
4039 /* We have to offset the PTS, so that it is consistent with the SCR.
4040 SCR starts at 36000, but the first two packs contain only padding
4041 and the first pack from the other stream, respectively, may also have
4042 been written before.
4043 So the real data starts at SCR 36000+3*1200. */
4044 mux_preload= (36000+3*1200) / 90000.0; //0.44
4045 } else if(!strcmp(arg, "svcd")) {
4047 opt_video_codec("mpeg2video");
4048 opt_audio_codec("mp2");
4051 opt_frame_size(norm == PAL ? "480x576" : "480x480");
4052 opt_frame_rate(NULL, frame_rates[norm]);
4053 opt_default("g", norm == PAL ? "15" : "18");
4055 opt_default("b", "2040000");
4056 opt_default("maxrate", "2516000");
4057 opt_default("minrate", "0"); //1145000;
4058 opt_default("bufsize", "1835008"); //224*1024*8;
4059 opt_default("flags", "+scan_offset");
4062 opt_default("ab", "224000");
4063 audio_sample_rate = 44100;
4065 opt_default("packetsize", "2324");
4067 } else if(!strcmp(arg, "dvd")) {
4069 opt_video_codec("mpeg2video");
4070 opt_audio_codec("ac3");
4073 opt_frame_size(norm == PAL ? "720x576" : "720x480");
4074 opt_frame_rate(NULL, frame_rates[norm]);
4075 opt_default("g", norm == PAL ? "15" : "18");
4077 opt_default("b", "6000000");
4078 opt_default("maxrate", "9000000");
4079 opt_default("minrate", "0"); //1500000;
4080 opt_default("bufsize", "1835008"); //224*1024*8;
4082 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
4083 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
4085 opt_default("ab", "448000");
4086 audio_sample_rate = 48000;
4088 } else if(!strncmp(arg, "dv", 2)) {
4092 opt_frame_size(norm == PAL ? "720x576" : "720x480");
4093 opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :
4094 (norm == PAL ? "yuv420p" : "yuv411p"));
4095 opt_frame_rate(NULL, frame_rates[norm]);
4097 audio_sample_rate = 48000;
4101 fprintf(stderr, "Unknown target: %s\n", arg);
4106 static void opt_vstats_file (const char *arg)
4108 av_free (vstats_filename);
4109 vstats_filename=av_strdup (arg);
4112 static void opt_vstats (void)
4115 time_t today2 = time(NULL);
4116 struct tm *today = localtime(&today2);
4118 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
4120 opt_vstats_file(filename);
4123 static int opt_bsf(const char *opt, const char *arg)
4125 AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
4126 AVBitStreamFilterContext **bsfp;
4129 fprintf(stderr, "Unknown bitstream filter %s\n", arg);
4133 bsfp= *opt == 'v' ? &video_bitstream_filters :
4134 *opt == 'a' ? &audio_bitstream_filters :
4135 &subtitle_bitstream_filters;
4137 bsfp= &(*bsfp)->next;
4144 static int opt_preset(const char *opt, const char *arg)
4147 char filename[1000], tmp[1000], tmp2[1000], line[1000];
4148 char *codec_name = *opt == 'v' ? video_codec_name :
4149 *opt == 'a' ? audio_codec_name :
4150 subtitle_codec_name;
4152 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
4153 fprintf(stderr, "File for preset '%s' not found\n", arg);
4158 int e= fscanf(f, "%999[^\n]\n", line) - 1;
4159 if(line[0] == '#' && !e)
4161 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
4163 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
4166 if(!strcmp(tmp, "acodec")){
4167 opt_audio_codec(tmp2);
4168 }else if(!strcmp(tmp, "vcodec")){
4169 opt_video_codec(tmp2);
4170 }else if(!strcmp(tmp, "scodec")){
4171 opt_subtitle_codec(tmp2);
4172 }else if(opt_default(tmp, tmp2) < 0){
4173 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4183 static const OptionDef options[] = {
4185 #include "cmdutils_common_opts.h"
4186 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
4187 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
4188 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
4189 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream[:syncfile:syncstream]" },
4190 { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile[,metadata]:infile[,metadata]" },
4191 { "map_chapters", HAS_ARG | OPT_EXPERT, {(void*)opt_map_chapters}, "set chapters mapping", "outfile:infile" },
4192 { "t", OPT_FUNC2 | HAS_ARG, {(void*)opt_recording_time}, "record or transcode \"duration\" seconds of audio/video", "duration" },
4193 { "fs", HAS_ARG | OPT_INT64, {(void*)&limit_filesize}, "set the limit file size in bytes", "limit_size" }, //
4194 { "ss", OPT_FUNC2 | HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
4195 { "itsoffset", OPT_FUNC2 | HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },
4196 { "itsscale", HAS_ARG, {(void*)opt_input_ts_scale}, "set the input ts scale", "stream:scale" },
4197 { "timestamp", OPT_FUNC2 | HAS_ARG, {(void*)opt_recording_timestamp}, "set the recording timestamp ('now' to set the current time)", "time" },
4198 { "metadata", OPT_FUNC2 | HAS_ARG, {(void*)opt_metadata}, "add metadata", "string=string" },
4199 { "dframes", OPT_INT | HAS_ARG, {(void*)&max_frames[AVMEDIA_TYPE_DATA]}, "set the number of data frames to record", "number" },
4200 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
4201 "add timings for benchmarking" },
4202 { "timelimit", OPT_FUNC2 | HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
4203 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
4204 "dump each input packet" },
4205 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
4206 "when dumping packets, also dump the payload" },
4207 { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
4208 { "loop_input", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
4209 { "loop_output", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&loop_output}, "number of times to loop output in formats that support looping (0 loops forever)", "" },
4210 { "v", HAS_ARG | OPT_FUNC2, {(void*)opt_verbose}, "set ffmpeg verbosity level", "number" },
4211 { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
4212 { "threads", OPT_FUNC2 | HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
4213 { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
4214 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
4215 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
4216 { "vglobal", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_global_header}, "video global header storage type", "" },
4217 { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)©_ts}, "copy timestamps" },
4218 { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)©_tb}, "copy input stream time base when stream copying" },
4219 { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
4220 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
4221 { "programid", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&opt_programid}, "desired program number", "" },
4222 { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
4223 { "copyinkf", OPT_BOOL | OPT_EXPERT, {(void*)©_initial_nonkeyframes}, "copy initial non-keyframes" },
4226 { "b", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_bitrate}, "set bitrate (in bits/s)", "bitrate" },
4227 { "vb", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_bitrate}, "set bitrate (in bits/s)", "bitrate" },
4228 { "vframes", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&max_frames[AVMEDIA_TYPE_VIDEO]}, "set the number of video frames to record", "number" },
4229 { "r", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
4230 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
4231 { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
4232 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format, 'list' as argument shows all the pixel formats supported", "format" },
4233 { "croptop", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4234 { "cropbottom", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4235 { "cropleft", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4236 { "cropright", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
4237 { "padtop", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4238 { "padbottom", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4239 { "padleft", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4240 { "padright", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
4241 { "padcolor", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "color" },
4242 { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
4243 { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" },
4244 { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
4245 { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantizer scale (VBR)", "q" },
4246 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" },
4247 { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
4248 { "me_threshold", HAS_ARG | OPT_FUNC2 | OPT_EXPERT | OPT_VIDEO, {(void*)opt_me_threshold}, "motion estimaton threshold", "threshold" },
4249 { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality},
4250 "use same video quality as source (implies VBR)" },
4251 { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
4252 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename_prefix}, "select two pass log file name prefix", "prefix" },
4253 { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
4254 "deinterlace pictures" },
4255 { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
4256 { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
4257 { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
4259 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
4261 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" },
4262 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
4263 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
4264 { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
4265 { "vtag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_codec_tag}, "force video tag/fourcc", "fourcc/tag" },
4266 { "newvideo", OPT_VIDEO | OPT_FUNC2, {(void*)opt_new_stream}, "add a new video stream to the current output stream" },
4267 { "vlang", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void *)&video_language}, "set the ISO 639 language code (3 letters) of the current video stream" , "code" },
4268 { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
4269 { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&force_fps}, "force the selected framerate, disable the best supported framerate selection" },
4270 { "streamid", OPT_FUNC2 | HAS_ARG | OPT_EXPERT, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
4271 { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void *)&forced_key_frames}, "force key frames at specified timestamps", "timestamps" },
4274 { "ab", OPT_FUNC2 | HAS_ARG | OPT_AUDIO, {(void*)opt_bitrate}, "set bitrate (in bits/s)", "bitrate" },
4275 { "aframes", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&max_frames[AVMEDIA_TYPE_AUDIO]}, "set the number of audio frames to record", "number" },
4276 { "aq", OPT_FLOAT | HAS_ARG | OPT_AUDIO, {(void*)&audio_qscale}, "set audio quality (codec-specific)", "quality", },
4277 { "ar", HAS_ARG | OPT_FUNC2 | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
4278 { "ac", HAS_ARG | OPT_FUNC2 | OPT_AUDIO, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
4279 { "an", OPT_BOOL | OPT_AUDIO, {(void*)&audio_disable}, "disable audio" },
4280 { "acodec", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
4281 { "atag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_AUDIO, {(void*)opt_codec_tag}, "force audio tag/fourcc", "fourcc/tag" },
4282 { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
4283 { "newaudio", OPT_AUDIO | OPT_FUNC2, {(void*)opt_new_stream}, "add a new audio stream to the current output stream" },
4284 { "alang", HAS_ARG | OPT_STRING | OPT_AUDIO, {(void *)&audio_language}, "set the ISO 639 language code (3 letters) of the current audio stream" , "code" },
4285 { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO, {(void*)opt_audio_sample_fmt}, "set sample format, 'list' as argument shows all the sample formats supported", "format" },
4287 /* subtitle options */
4288 { "sn", OPT_BOOL | OPT_SUBTITLE, {(void*)&subtitle_disable}, "disable subtitle" },
4289 { "scodec", HAS_ARG | OPT_SUBTITLE, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
4290 { "newsubtitle", OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_new_stream}, "add a new subtitle stream to the current output stream" },
4291 { "slang", HAS_ARG | OPT_STRING | OPT_SUBTITLE, {(void *)&subtitle_language}, "set the ISO 639 language code (3 letters) of the current subtitle stream" , "code" },
4292 { "stag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_SUBTITLE, {(void*)opt_codec_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
4295 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },
4296 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "set television standard (NTSC, PAL (SECAM))", "standard" },
4297 { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
4300 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" },
4301 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" },
4303 { "absf", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_EXPERT, {(void*)opt_bsf}, "", "bitstream_filter" },
4304 { "vbsf", OPT_FUNC2 | HAS_ARG | OPT_VIDEO | OPT_EXPERT, {(void*)opt_bsf}, "", "bitstream_filter" },
4305 { "sbsf", OPT_FUNC2 | HAS_ARG | OPT_SUBTITLE | OPT_EXPERT, {(void*)opt_bsf}, "", "bitstream_filter" },
4307 { "apre", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_EXPERT, {(void*)opt_preset}, "set the audio options to the indicated preset", "preset" },
4308 { "vpre", OPT_FUNC2 | HAS_ARG | OPT_VIDEO | OPT_EXPERT, {(void*)opt_preset}, "set the video options to the indicated preset", "preset" },
4309 { "spre", OPT_FUNC2 | HAS_ARG | OPT_SUBTITLE | OPT_EXPERT, {(void*)opt_preset}, "set the subtitle options to the indicated preset", "preset" },
4310 { "fpre", OPT_FUNC2 | HAS_ARG | OPT_EXPERT, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
4312 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
4316 int main(int argc, char **argv)
4320 av_log_set_flags(AV_LOG_SKIP_REPEATED);
4322 avcodec_register_all();
4324 avdevice_register_all();
4327 avfilter_register_all();
4332 if(isatty(STDIN_FILENO))
4333 url_set_interrupt_cb(decode_interrupt_cb);
4341 parse_options(argc, argv, options, opt_output_file);
4343 if(nb_output_files <= 0 && nb_input_files == 0) {
4345 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffmpeg'\n");
4349 /* file converter / grab */
4350 if (nb_output_files <= 0) {
4351 fprintf(stderr, "At least one output file must be specified\n");
4355 if (nb_input_files == 0) {
4356 fprintf(stderr, "At least one input file must be specified\n");
4361 if (transcode(output_files, nb_output_files, input_files, nb_input_files,
4362 stream_maps, nb_stream_maps) < 0)
4364 ti = getutime() - ti;
4366 int maxrss = getmaxrss() / 1024;
4367 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
4370 return ffmpeg_exit(0);