3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/buffersrc.h"
54 # include "libavfilter/vsrc_buffer.h"
57 #if HAVE_SYS_RESOURCE_H
58 #include <sys/types.h>
60 #include <sys/resource.h>
61 #elif HAVE_GETPROCESSTIMES
64 #if HAVE_GETPROCESSMEMORYINFO
70 #include <sys/select.h>
77 #include "libavutil/avassert.h"
80 #define VSYNC_PASSTHROUGH 0
84 const char program_name[] = "avconv";
85 const int program_birth_year = 2000;
87 /* select an input stream for an output stream */
88 typedef struct StreamMap {
89 int disabled; /** 1 is this mapping is disabled by a negative map */
93 int sync_stream_index;
97 * select an input file for an output file
99 typedef struct MetadataMap {
100 int file; ///< file index
101 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
102 int index; ///< stream/chapter/program number
105 static const OptionDef options[];
107 static int video_discard = 0;
108 static int same_quant = 0;
109 static int do_deinterlace = 0;
110 static int intra_dc_precision = 8;
111 static int qp_hist = 0;
113 static int file_overwrite = 0;
114 static int do_benchmark = 0;
115 static int do_hex_dump = 0;
116 static int do_pkt_dump = 0;
117 static int do_pass = 0;
118 static char *pass_logfilename_prefix = NULL;
119 static int video_sync_method = VSYNC_AUTO;
120 static int audio_sync_method = 0;
121 static float audio_drift_threshold = 0.1;
122 static int copy_ts = 0;
123 static int copy_tb = 1;
124 static int opt_shortest = 0;
125 static char *vstats_filename;
126 static FILE *vstats_file;
128 static int audio_volume = 256;
130 static int exit_on_error = 0;
131 static int using_stdin = 0;
132 static int64_t video_size = 0;
133 static int64_t audio_size = 0;
134 static int64_t extra_size = 0;
135 static int nb_frames_dup = 0;
136 static int nb_frames_drop = 0;
137 static int input_sync;
139 static float dts_delta_threshold = 10;
141 static int print_stats = 1;
143 static uint8_t *audio_buf;
144 static unsigned int allocated_audio_buf_size;
146 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
148 typedef struct FrameBuffer {
154 enum PixelFormat pix_fmt;
157 struct InputStream *ist;
158 struct FrameBuffer *next;
161 typedef struct InputStream {
164 int discard; /* true if stream data should be discarded */
165 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
167 AVFrame *decoded_frame;
168 AVFrame *filtered_frame;
170 int64_t start; /* time when read started */
171 int64_t next_pts; /* synthetic pts for cases where pkt.pts
173 int64_t pts; /* current pts */
174 PtsCorrectionContext pts_ctx;
176 int is_start; /* is 1 at the start and after a discontinuity */
177 int showed_multi_packet_warning;
180 /* a pool of free buffers for decoded data */
181 FrameBuffer *buffer_pool;
184 typedef struct InputFile {
185 AVFormatContext *ctx;
186 int eof_reached; /* true if eof reached */
187 int ist_index; /* index of first stream in ist_table */
188 int buffer_size; /* current total buffer size */
190 int nb_streams; /* number of stream that avconv is aware of; may be different
191 from ctx.nb_streams if new streams appear during av_read_frame() */
195 typedef struct OutputStream {
196 int file_index; /* file index */
197 int index; /* stream index in the output file */
198 int source_index; /* InputStream index */
199 AVStream *st; /* stream in the output file */
200 int encoding_needed; /* true if encoding needed for this stream */
202 /* input pts and corresponding output pts
204 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
205 struct InputStream *sync_ist; /* input stream to sync against */
206 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
207 AVBitStreamFilterContext *bitstream_filters;
210 AVFrame *output_frame;
214 AVFrame pict_tmp; /* temporary image for resampling */
215 struct SwsContext *img_resample_ctx; /* for image resampling */
218 int resample_pix_fmt;
219 AVRational frame_rate;
223 float frame_aspect_ratio;
225 /* forced key frames */
226 int64_t *forced_kf_pts;
232 ReSampleContext *resample; /* for audio resampling */
233 int resample_sample_fmt;
234 int resample_channels;
235 int resample_sample_rate;
237 AVAudioConvert *reformat_ctx;
238 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
242 AVFilterContext *output_video_filter;
243 AVFilterContext *input_video_filter;
244 AVFilterBufferRef *picref;
246 AVFilterGraph *graph;
251 int is_past_recording_time;
253 const char *attachment_filename;
254 int copy_initial_nonkeyframes;
258 typedef struct OutputFile {
259 AVFormatContext *ctx;
261 int ost_index; /* index of the first stream in output_streams */
262 int64_t recording_time; /* desired length of the resulting file in microseconds */
263 int64_t start_time; /* start time in microseconds */
264 uint64_t limit_filesize;
267 static InputStream *input_streams = NULL;
268 static int nb_input_streams = 0;
269 static InputFile *input_files = NULL;
270 static int nb_input_files = 0;
272 static OutputStream *output_streams = NULL;
273 static int nb_output_streams = 0;
274 static OutputFile *output_files = NULL;
275 static int nb_output_files = 0;
277 typedef struct OptionsContext {
278 /* input/output options */
282 SpecifierOpt *codec_names;
284 SpecifierOpt *audio_channels;
285 int nb_audio_channels;
286 SpecifierOpt *audio_sample_rate;
287 int nb_audio_sample_rate;
288 SpecifierOpt *frame_rates;
290 SpecifierOpt *frame_sizes;
292 SpecifierOpt *frame_pix_fmts;
293 int nb_frame_pix_fmts;
296 int64_t input_ts_offset;
299 SpecifierOpt *ts_scale;
301 SpecifierOpt *dump_attachment;
302 int nb_dump_attachment;
305 StreamMap *stream_maps;
307 /* first item specifies output metadata, second is input */
308 MetadataMap (*meta_data_maps)[2];
309 int nb_meta_data_maps;
310 int metadata_global_manual;
311 int metadata_streams_manual;
312 int metadata_chapters_manual;
313 const char **attachments;
316 int chapters_input_file;
318 int64_t recording_time;
319 uint64_t limit_filesize;
325 int subtitle_disable;
328 /* indexed by output file stream index */
332 SpecifierOpt *metadata;
334 SpecifierOpt *max_frames;
336 SpecifierOpt *bitstream_filters;
337 int nb_bitstream_filters;
338 SpecifierOpt *codec_tags;
340 SpecifierOpt *sample_fmts;
342 SpecifierOpt *qscale;
344 SpecifierOpt *forced_key_frames;
345 int nb_forced_key_frames;
346 SpecifierOpt *force_fps;
348 SpecifierOpt *frame_aspect_ratios;
349 int nb_frame_aspect_ratios;
350 SpecifierOpt *rc_overrides;
352 SpecifierOpt *intra_matrices;
353 int nb_intra_matrices;
354 SpecifierOpt *inter_matrices;
355 int nb_inter_matrices;
356 SpecifierOpt *top_field_first;
357 int nb_top_field_first;
358 SpecifierOpt *metadata_map;
360 SpecifierOpt *presets;
362 SpecifierOpt *copy_initial_nonkeyframes;
363 int nb_copy_initial_nonkeyframes;
365 SpecifierOpt *filters;
370 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
373 for (i = 0; i < o->nb_ ## name; i++) {\
374 char *spec = o->name[i].specifier;\
375 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
376 outvar = o->name[i].u.type;\
382 static void reset_options(OptionsContext *o)
384 const OptionDef *po = options;
386 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
388 void *dst = (uint8_t*)o + po->u.off;
390 if (po->flags & OPT_SPEC) {
391 SpecifierOpt **so = dst;
392 int i, *count = (int*)(so + 1);
393 for (i = 0; i < *count; i++) {
394 av_freep(&(*so)[i].specifier);
395 if (po->flags & OPT_STRING)
396 av_freep(&(*so)[i].u.str);
400 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
405 av_freep(&o->stream_maps);
406 av_freep(&o->meta_data_maps);
407 av_freep(&o->streamid_map);
409 memset(o, 0, sizeof(*o));
411 o->mux_max_delay = 0.7;
412 o->recording_time = INT64_MAX;
413 o->limit_filesize = UINT64_MAX;
414 o->chapters_input_file = INT_MAX;
420 static int alloc_buffer(InputStream *ist, FrameBuffer **pbuf)
422 AVCodecContext *s = ist->st->codec;
423 FrameBuffer *buf = av_mallocz(sizeof(*buf));
425 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
426 int h_chroma_shift, v_chroma_shift;
427 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
428 int w = s->width, h = s->height;
431 return AVERROR(ENOMEM);
433 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
438 avcodec_align_dimensions(s, &w, &h);
439 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
440 s->pix_fmt, 32)) < 0) {
444 /* XXX this shouldn't be needed, but some tests break without this line
445 * those decoders are buggy and need to be fixed.
446 * the following tests fail:
447 * bethsoft-vid, cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
449 memset(buf->base[0], 128, ret);
451 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
452 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
453 const int h_shift = i==0 ? 0 : h_chroma_shift;
454 const int v_shift = i==0 ? 0 : v_chroma_shift;
455 if (s->flags & CODEC_FLAG_EMU_EDGE)
456 buf->data[i] = buf->base[i];
458 buf->data[i] = buf->base[i] +
459 FFALIGN((buf->linesize[i]*edge >> v_shift) +
460 (pixel_size*edge >> h_shift), 32);
464 buf->pix_fmt = s->pix_fmt;
471 static void free_buffer_pool(InputStream *ist)
473 FrameBuffer *buf = ist->buffer_pool;
475 ist->buffer_pool = buf->next;
476 av_freep(&buf->base[0]);
478 buf = ist->buffer_pool;
482 static void unref_buffer(InputStream *ist, FrameBuffer *buf)
484 av_assert0(buf->refcount);
486 if (!buf->refcount) {
487 buf->next = ist->buffer_pool;
488 ist->buffer_pool = buf;
492 static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
494 InputStream *ist = s->opaque;
498 if (!ist->buffer_pool && (ret = alloc_buffer(ist, &ist->buffer_pool)) < 0)
501 buf = ist->buffer_pool;
502 ist->buffer_pool = buf->next;
504 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
505 av_freep(&buf->base[0]);
507 if ((ret = alloc_buffer(ist, &buf)) < 0)
513 frame->type = FF_BUFFER_TYPE_USER;
514 frame->extended_data = frame->data;
515 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
517 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
518 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
519 frame->data[i] = buf->data[i];
520 frame->linesize[i] = buf->linesize[i];
526 static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
528 InputStream *ist = s->opaque;
529 FrameBuffer *buf = frame->opaque;
532 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
533 frame->data[i] = NULL;
535 unref_buffer(ist, buf);
538 static void filter_release_buffer(AVFilterBuffer *fb)
540 FrameBuffer *buf = fb->priv;
542 unref_buffer(buf->ist, buf);
547 static int configure_video_filters(InputStream *ist, OutputStream *ost)
549 AVFilterContext *last_filter, *filter;
550 /** filter graph containing all filters including input & output */
551 AVCodecContext *codec = ost->st->codec;
552 AVCodecContext *icodec = ist->st->codec;
553 SinkContext sink_ctx = { .pix_fmt = codec->pix_fmt };
554 AVRational sample_aspect_ratio;
558 ost->graph = avfilter_graph_alloc();
560 if (ist->st->sample_aspect_ratio.num) {
561 sample_aspect_ratio = ist->st->sample_aspect_ratio;
563 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
565 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
566 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
567 sample_aspect_ratio.num, sample_aspect_ratio.den);
569 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
570 "src", args, NULL, ost->graph);
573 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
574 "out", NULL, &sink_ctx, ost->graph);
577 last_filter = ost->input_video_filter;
579 if (codec->width != icodec->width || codec->height != icodec->height) {
580 snprintf(args, 255, "%d:%d:flags=0x%X",
583 (unsigned)ost->sws_flags);
584 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
585 NULL, args, NULL, ost->graph)) < 0)
587 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
589 last_filter = filter;
592 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
593 ost->graph->scale_sws_opts = av_strdup(args);
596 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
597 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
599 outputs->name = av_strdup("in");
600 outputs->filter_ctx = last_filter;
601 outputs->pad_idx = 0;
602 outputs->next = NULL;
604 inputs->name = av_strdup("out");
605 inputs->filter_ctx = ost->output_video_filter;
609 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
612 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
616 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
619 codec->width = ost->output_video_filter->inputs[0]->w;
620 codec->height = ost->output_video_filter->inputs[0]->h;
621 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
622 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
623 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
624 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
628 #endif /* CONFIG_AVFILTER */
630 static void term_exit(void)
632 av_log(NULL, AV_LOG_QUIET, "");
635 static volatile int received_sigterm = 0;
636 static volatile int received_nb_signals = 0;
639 sigterm_handler(int sig)
641 received_sigterm = sig;
642 received_nb_signals++;
646 static void term_init(void)
648 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
649 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
651 signal(SIGXCPU, sigterm_handler);
655 static int decode_interrupt_cb(void *ctx)
657 return received_nb_signals > 1;
660 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
662 void exit_program(int ret)
667 for (i = 0; i < nb_output_files; i++) {
668 AVFormatContext *s = output_files[i].ctx;
669 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
671 avformat_free_context(s);
672 av_dict_free(&output_files[i].opts);
674 for (i = 0; i < nb_output_streams; i++) {
675 AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
677 AVBitStreamFilterContext *next = bsfc->next;
678 av_bitstream_filter_close(bsfc);
681 output_streams[i].bitstream_filters = NULL;
683 if (output_streams[i].output_frame) {
684 AVFrame *frame = output_streams[i].output_frame;
685 if (frame->extended_data != frame->data)
686 av_freep(&frame->extended_data);
691 av_freep(&output_streams[i].avfilter);
694 for (i = 0; i < nb_input_files; i++) {
695 avformat_close_input(&input_files[i].ctx);
697 for (i = 0; i < nb_input_streams; i++) {
698 av_freep(&input_streams[i].decoded_frame);
699 av_freep(&input_streams[i].filtered_frame);
700 av_dict_free(&input_streams[i].opts);
701 free_buffer_pool(&input_streams[i]);
706 av_free(vstats_filename);
708 av_freep(&input_streams);
709 av_freep(&input_files);
710 av_freep(&output_streams);
711 av_freep(&output_files);
715 allocated_audio_buf_size = 0;
720 avformat_network_deinit();
722 if (received_sigterm) {
723 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
724 (int) received_sigterm);
731 static void assert_avoptions(AVDictionary *m)
733 AVDictionaryEntry *t;
734 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
735 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
740 static void assert_codec_experimental(AVCodecContext *c, int encoder)
742 const char *codec_string = encoder ? "encoder" : "decoder";
744 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
745 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
746 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
747 "results.\nAdd '-strict experimental' if you want to use it.\n",
748 codec_string, c->codec->name);
749 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
750 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
751 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
752 codec_string, codec->name);
757 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
759 if (codec && codec->sample_fmts) {
760 const enum AVSampleFormat *p = codec->sample_fmts;
761 for (; *p != -1; p++) {
762 if (*p == st->codec->sample_fmt)
766 av_log(NULL, AV_LOG_WARNING,
767 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
768 av_get_sample_fmt_name(st->codec->sample_fmt),
770 av_get_sample_fmt_name(codec->sample_fmts[0]));
771 st->codec->sample_fmt = codec->sample_fmts[0];
777 * Update the requested input sample format based on the output sample format.
778 * This is currently only used to request float output from decoders which
779 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
780 * Ideally this will be removed in the future when decoders do not do format
781 * conversion and only output in their native format.
783 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
786 /* if sample formats match or a decoder sample format has already been
787 requested, just return */
788 if (enc->sample_fmt == dec->sample_fmt ||
789 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
792 /* if decoder supports more than one output format */
793 if (dec_codec && dec_codec->sample_fmts &&
794 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
795 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
796 const enum AVSampleFormat *p;
797 int min_dec = -1, min_inc = -1;
799 /* find a matching sample format in the encoder */
800 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
801 if (*p == enc->sample_fmt) {
802 dec->request_sample_fmt = *p;
804 } else if (*p > enc->sample_fmt) {
805 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
807 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
810 /* if none match, provide the one that matches quality closest */
811 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
812 enc->sample_fmt - min_dec;
816 static void choose_sample_rate(AVStream *st, AVCodec *codec)
818 if (codec && codec->supported_samplerates) {
819 const int *p = codec->supported_samplerates;
821 int best_dist = INT_MAX;
823 int dist = abs(st->codec->sample_rate - *p);
824 if (dist < best_dist) {
830 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
832 st->codec->sample_rate = best;
836 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
838 if (codec && codec->pix_fmts) {
839 const enum PixelFormat *p = codec->pix_fmts;
840 if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
841 if (st->codec->codec_id == CODEC_ID_MJPEG) {
842 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
843 } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
844 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
845 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
848 for (; *p != PIX_FMT_NONE; p++) {
849 if (*p == st->codec->pix_fmt)
852 if (*p == PIX_FMT_NONE) {
853 if (st->codec->pix_fmt != PIX_FMT_NONE)
854 av_log(NULL, AV_LOG_WARNING,
855 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
856 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
858 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
859 st->codec->pix_fmt = codec->pix_fmts[0];
865 get_sync_ipts(const OutputStream *ost)
867 const InputStream *ist = ost->sync_ist;
868 OutputFile *of = &output_files[ost->file_index];
869 return (double)(ist->pts - of->start_time) / AV_TIME_BASE;
872 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
874 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
875 AVCodecContext *avctx = ost->st->codec;
879 * Audio encoders may split the packets -- #frames in != #packets out.
880 * But there is no reordering, so we can limit the number of output packets
881 * by simply dropping them here.
882 * Counting encoded video frames needs to be done separately because of
883 * reordering, see do_video_out()
885 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
886 if (ost->frame_number >= ost->max_frames)
892 AVPacket new_pkt = *pkt;
893 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
894 &new_pkt.data, &new_pkt.size,
895 pkt->data, pkt->size,
896 pkt->flags & AV_PKT_FLAG_KEY);
899 new_pkt.destruct = av_destruct_packet;
901 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
902 bsfc->filter->name, pkt->stream_index,
903 avctx->codec ? avctx->codec->name : "copy");
913 pkt->stream_index = ost->index;
914 ret = av_interleaved_write_frame(s, pkt);
916 print_error("av_interleaved_write_frame()", ret);
921 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
923 int fill_char = 0x00;
924 if (sample_fmt == AV_SAMPLE_FMT_U8)
926 memset(buf, fill_char, size);
929 static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
930 const uint8_t *buf, int buf_size)
932 AVCodecContext *enc = ost->st->codec;
933 AVFrame *frame = NULL;
937 av_init_packet(&pkt);
942 if (!ost->output_frame) {
943 ost->output_frame = avcodec_alloc_frame();
944 if (!ost->output_frame) {
945 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
949 frame = ost->output_frame;
950 if (frame->extended_data != frame->data)
951 av_freep(&frame->extended_data);
952 avcodec_get_frame_defaults(frame);
954 frame->nb_samples = buf_size /
955 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
956 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
957 buf, buf_size, 1)) < 0) {
958 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
964 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
965 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
970 if (pkt.pts != AV_NOPTS_VALUE)
971 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
972 if (pkt.duration > 0)
973 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
975 write_frame(s, &pkt, ost);
977 audio_size += pkt.size;
981 ost->sync_opts += frame->nb_samples;
986 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
987 InputStream *ist, AVFrame *decoded_frame)
990 int64_t audio_buf_size;
992 int size_out, frame_bytes, resample_changed;
993 AVCodecContext *enc = ost->st->codec;
994 AVCodecContext *dec = ist->st->codec;
995 int osize = av_get_bytes_per_sample(enc->sample_fmt);
996 int isize = av_get_bytes_per_sample(dec->sample_fmt);
997 uint8_t *buf = decoded_frame->data[0];
998 int size = decoded_frame->nb_samples * dec->channels * isize;
999 int64_t allocated_for_size = size;
1002 audio_buf_size = (allocated_for_size + isize * dec->channels - 1) / (isize * dec->channels);
1003 audio_buf_size = (audio_buf_size * enc->sample_rate + dec->sample_rate) / dec->sample_rate;
1004 audio_buf_size = audio_buf_size * 2 + 10000; // safety factors for the deprecated resampling API
1005 audio_buf_size = FFMAX(audio_buf_size, enc->frame_size);
1006 audio_buf_size *= osize * enc->channels;
1008 if (audio_buf_size > INT_MAX) {
1009 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
1013 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1015 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1019 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1020 ost->audio_resample = 1;
1022 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1023 ost->resample_channels != dec->channels ||
1024 ost->resample_sample_rate != dec->sample_rate;
1026 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1027 if (resample_changed) {
1028 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",
1029 ist->file_index, ist->st->index,
1030 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1031 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1032 ost->resample_sample_fmt = dec->sample_fmt;
1033 ost->resample_channels = dec->channels;
1034 ost->resample_sample_rate = dec->sample_rate;
1036 audio_resample_close(ost->resample);
1038 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1039 if (audio_sync_method <= 1 &&
1040 ost->resample_sample_fmt == enc->sample_fmt &&
1041 ost->resample_channels == enc->channels &&
1042 ost->resample_sample_rate == enc->sample_rate) {
1043 ost->resample = NULL;
1044 ost->audio_resample = 0;
1045 } else if (ost->audio_resample) {
1046 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
1047 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
1048 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1049 enc->sample_rate, dec->sample_rate,
1050 enc->sample_fmt, dec->sample_fmt,
1052 if (!ost->resample) {
1053 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1054 dec->channels, dec->sample_rate,
1055 enc->channels, enc->sample_rate);
1061 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
1062 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1063 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
1064 if (ost->reformat_ctx)
1065 av_audio_convert_free(ost->reformat_ctx);
1066 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1067 dec->sample_fmt, 1, NULL, 0);
1068 if (!ost->reformat_ctx) {
1069 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1070 av_get_sample_fmt_name(dec->sample_fmt),
1071 av_get_sample_fmt_name(enc->sample_fmt));
1074 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
1077 if (audio_sync_method) {
1078 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts -
1079 av_fifo_size(ost->fifo) / (enc->channels * osize);
1080 int idelta = delta * dec->sample_rate / enc->sample_rate;
1081 int byte_delta = idelta * isize * dec->channels;
1083 // FIXME resample delay
1084 if (fabs(delta) > 50) {
1085 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1086 if (byte_delta < 0) {
1087 byte_delta = FFMAX(byte_delta, -size);
1090 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1091 -byte_delta / (isize * dec->channels));
1096 static uint8_t *input_tmp = NULL;
1097 input_tmp = av_realloc(input_tmp, byte_delta + size);
1099 if (byte_delta > allocated_for_size - size) {
1100 allocated_for_size = byte_delta + (int64_t)size;
1105 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
1106 memcpy(input_tmp + byte_delta, buf, size);
1109 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1111 } else if (audio_sync_method > 1) {
1112 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
1113 av_assert0(ost->audio_resample);
1114 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1115 delta, comp, enc->sample_rate);
1116 // 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));
1117 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1121 ost->sync_opts = lrintf(get_sync_ipts(ost) * enc->sample_rate) -
1122 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
1124 if (ost->audio_resample) {
1126 size_out = audio_resample(ost->resample,
1127 (short *)buftmp, (short *)buf,
1128 size / (dec->channels * isize));
1129 size_out = size_out * enc->channels * osize;
1135 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1136 const void *ibuf[6] = { buftmp };
1137 void *obuf[6] = { audio_buf };
1138 int istride[6] = { isize };
1139 int ostride[6] = { osize };
1140 int len = size_out / istride[0];
1141 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
1142 printf("av_audio_convert() failed\n");
1148 size_out = len * osize;
1151 /* now encode as many frames as possible */
1152 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1153 /* output resampled raw samples */
1154 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1155 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1158 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1160 frame_bytes = enc->frame_size * osize * enc->channels;
1162 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1163 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1164 encode_audio_frame(s, ost, audio_buf, frame_bytes);
1167 encode_audio_frame(s, ost, buftmp, size_out);
1171 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1173 AVCodecContext *dec;
1174 AVPicture *picture2;
1175 AVPicture picture_tmp;
1178 dec = ist->st->codec;
1180 /* deinterlace : must be done before any resize */
1181 if (do_deinterlace) {
1184 /* create temporary picture */
1185 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1186 buf = av_malloc(size);
1190 picture2 = &picture_tmp;
1191 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1193 if (avpicture_deinterlace(picture2, picture,
1194 dec->pix_fmt, dec->width, dec->height) < 0) {
1195 /* if error, do not deinterlace */
1196 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1205 if (picture != picture2)
1206 *picture = *picture2;
1210 static void do_subtitle_out(AVFormatContext *s,
1216 static uint8_t *subtitle_out = NULL;
1217 int subtitle_out_max_size = 1024 * 1024;
1218 int subtitle_out_size, nb, i;
1219 AVCodecContext *enc;
1222 if (pts == AV_NOPTS_VALUE) {
1223 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1229 enc = ost->st->codec;
1231 if (!subtitle_out) {
1232 subtitle_out = av_malloc(subtitle_out_max_size);
1235 /* Note: DVB subtitle need one packet to draw them and one other
1236 packet to clear them */
1237 /* XXX: signal it in the codec context ? */
1238 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1243 for (i = 0; i < nb; i++) {
1244 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1245 // start_display_time is required to be 0
1246 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1247 sub->end_display_time -= sub->start_display_time;
1248 sub->start_display_time = 0;
1249 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1250 subtitle_out_max_size, sub);
1251 if (subtitle_out_size < 0) {
1252 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1256 av_init_packet(&pkt);
1257 pkt.data = subtitle_out;
1258 pkt.size = subtitle_out_size;
1259 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1260 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1261 /* XXX: the pts correction is handled here. Maybe handling
1262 it in the codec would be better */
1264 pkt.pts += 90 * sub->start_display_time;
1266 pkt.pts += 90 * sub->end_display_time;
1268 write_frame(s, &pkt, ost);
1272 static int bit_buffer_size = 1024 * 256;
1273 static uint8_t *bit_buffer = NULL;
1275 #if !CONFIG_AVFILTER
1276 static void do_video_resample(OutputStream *ost,
1278 AVFrame *in_picture,
1279 AVFrame **out_picture)
1281 int resample_changed = 0;
1282 *out_picture = in_picture;
1284 resample_changed = ost->resample_width != in_picture->width ||
1285 ost->resample_height != in_picture->height ||
1286 ost->resample_pix_fmt != in_picture->format;
1288 if (resample_changed) {
1289 av_log(NULL, AV_LOG_INFO,
1290 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1291 ist->file_index, ist->st->index,
1292 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1293 in_picture->width, in_picture->height, av_get_pix_fmt_name(in_picture->format));
1294 if (!ost->video_resample)
1295 ost->video_resample = 1;
1298 if (ost->video_resample) {
1299 *out_picture = &ost->pict_tmp;
1300 if (resample_changed) {
1301 /* initialize a new scaler context */
1302 sws_freeContext(ost->img_resample_ctx);
1303 ost->img_resample_ctx = sws_getContext(
1304 ist->st->codec->width,
1305 ist->st->codec->height,
1306 ist->st->codec->pix_fmt,
1307 ost->st->codec->width,
1308 ost->st->codec->height,
1309 ost->st->codec->pix_fmt,
1310 ost->sws_flags, NULL, NULL, NULL);
1311 if (ost->img_resample_ctx == NULL) {
1312 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1316 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1317 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1319 if (resample_changed) {
1320 ost->resample_width = in_picture->width;
1321 ost->resample_height = in_picture->height;
1322 ost->resample_pix_fmt = in_picture->format;
1328 static void do_video_out(AVFormatContext *s,
1331 AVFrame *in_picture,
1332 int *frame_size, float quality)
1334 int nb_frames, i, ret, format_video_sync;
1335 AVFrame *final_picture;
1336 AVCodecContext *enc;
1339 enc = ost->st->codec;
1341 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1343 /* by default, we output a single frame */
1348 format_video_sync = video_sync_method;
1349 if (format_video_sync == VSYNC_AUTO)
1350 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1351 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1353 if (format_video_sync != VSYNC_PASSTHROUGH) {
1354 double vdelta = sync_ipts - ost->sync_opts;
1355 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1358 else if (format_video_sync == VSYNC_VFR) {
1359 if (vdelta <= -0.6) {
1361 } else if (vdelta > 0.6)
1362 ost->sync_opts = lrintf(sync_ipts);
1363 } else if (vdelta > 1.1)
1364 nb_frames = lrintf(vdelta);
1365 if (nb_frames == 0) {
1367 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1368 } else if (nb_frames > 1) {
1369 nb_frames_dup += nb_frames - 1;
1370 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1373 ost->sync_opts = lrintf(sync_ipts);
1375 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1379 #if !CONFIG_AVFILTER
1380 do_video_resample(ost, ist, in_picture, &final_picture);
1382 final_picture = in_picture;
1385 /* duplicates frame if needed */
1386 for (i = 0; i < nb_frames; i++) {
1388 av_init_packet(&pkt);
1390 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1391 enc->codec->id == CODEC_ID_RAWVIDEO) {
1392 /* raw pictures are written as AVPicture structure to
1393 avoid any copies. We support temporarily the older
1395 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1396 enc->coded_frame->top_field_first = in_picture->top_field_first;
1397 pkt.data = (uint8_t *)final_picture;
1398 pkt.size = sizeof(AVPicture);
1399 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1400 pkt.flags |= AV_PKT_FLAG_KEY;
1402 write_frame(s, &pkt, ost);
1404 AVFrame big_picture;
1406 big_picture = *final_picture;
1407 /* better than nothing: use input picture interlaced
1409 big_picture.interlaced_frame = in_picture->interlaced_frame;
1410 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1411 if (ost->top_field_first == -1)
1412 big_picture.top_field_first = in_picture->top_field_first;
1414 big_picture.top_field_first = !!ost->top_field_first;
1417 /* handles same_quant here. This is not correct because it may
1418 not be a global option */
1419 big_picture.quality = quality;
1420 if (!enc->me_threshold)
1421 big_picture.pict_type = 0;
1422 big_picture.pts = ost->sync_opts;
1423 if (ost->forced_kf_index < ost->forced_kf_count &&
1424 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1425 big_picture.pict_type = AV_PICTURE_TYPE_I;
1426 ost->forced_kf_index++;
1428 ret = avcodec_encode_video(enc,
1429 bit_buffer, bit_buffer_size,
1432 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1437 pkt.data = bit_buffer;
1439 if (enc->coded_frame->pts != AV_NOPTS_VALUE)
1440 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1442 if (enc->coded_frame->key_frame)
1443 pkt.flags |= AV_PKT_FLAG_KEY;
1444 write_frame(s, &pkt, ost);
1448 /* if two pass, output log */
1449 if (ost->logfile && enc->stats_out) {
1450 fprintf(ost->logfile, "%s", enc->stats_out);
1456 * For video, number of frames in == number of packets out.
1457 * But there may be reordering, so we can't throw away frames on encoder
1458 * flush, we need to limit them here, before they go into encoder.
1460 ost->frame_number++;
1464 static double psnr(double d)
1466 return -10.0 * log(d) / log(10.0);
1469 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1472 AVCodecContext *enc;
1474 double ti1, bitrate, avg_bitrate;
1476 /* this is executed just the first time do_video_stats is called */
1478 vstats_file = fopen(vstats_filename, "w");
1485 enc = ost->st->codec;
1486 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1487 frame_number = ost->frame_number;
1488 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1489 if (enc->flags&CODEC_FLAG_PSNR)
1490 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1492 fprintf(vstats_file,"f_size= %6d ", frame_size);
1493 /* compute pts value */
1494 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1498 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1499 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1500 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1501 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1502 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1506 static void print_report(OutputFile *output_files,
1507 OutputStream *ost_table, int nb_ostreams,
1508 int is_last_report, int64_t timer_start)
1512 AVFormatContext *oc;
1514 AVCodecContext *enc;
1515 int frame_number, vid, i;
1516 double bitrate, ti1, pts;
1517 static int64_t last_time = -1;
1518 static int qp_histogram[52];
1520 if (!print_stats && !is_last_report)
1523 if (!is_last_report) {
1525 /* display the report every 0.5 seconds */
1526 cur_time = av_gettime();
1527 if (last_time == -1) {
1528 last_time = cur_time;
1531 if ((cur_time - last_time) < 500000)
1533 last_time = cur_time;
1537 oc = output_files[0].ctx;
1539 total_size = avio_size(oc->pb);
1540 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1541 total_size = avio_tell(oc->pb);
1546 for (i = 0; i < nb_ostreams; i++) {
1548 ost = &ost_table[i];
1549 enc = ost->st->codec;
1550 if (!ost->stream_copy && enc->coded_frame)
1551 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1552 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1553 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1555 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1556 float t = (av_gettime() - timer_start) / 1000000.0;
1558 frame_number = ost->frame_number;
1559 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1560 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1562 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1566 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1568 for (j = 0; j < 32; j++)
1569 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1571 if (enc->flags&CODEC_FLAG_PSNR) {
1573 double error, error_sum = 0;
1574 double scale, scale_sum = 0;
1575 char type[3] = { 'Y','U','V' };
1576 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1577 for (j = 0; j < 3; j++) {
1578 if (is_last_report) {
1579 error = enc->error[j];
1580 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1582 error = enc->coded_frame->error[j];
1583 scale = enc->width * enc->height * 255.0 * 255.0;
1589 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1591 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1595 /* compute min output value */
1596 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1597 if ((pts < ti1) && (pts > 0))
1603 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1605 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1606 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1607 (double)total_size / 1024, ti1, bitrate);
1609 if (nb_frames_dup || nb_frames_drop)
1610 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1611 nb_frames_dup, nb_frames_drop);
1613 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1617 if (is_last_report) {
1618 int64_t raw= audio_size + video_size + extra_size;
1619 av_log(NULL, AV_LOG_INFO, "\n");
1620 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1621 video_size / 1024.0,
1622 audio_size / 1024.0,
1623 extra_size / 1024.0,
1624 100.0 * (total_size - raw) / raw
1629 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1633 for (i = 0; i < nb_ostreams; i++) {
1634 OutputStream *ost = &ost_table[i];
1635 AVCodecContext *enc = ost->st->codec;
1636 AVFormatContext *os = output_files[ost->file_index].ctx;
1637 int stop_encoding = 0;
1639 if (!ost->encoding_needed)
1642 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1644 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1650 av_init_packet(&pkt);
1654 switch (ost->st->codec->codec_type) {
1655 case AVMEDIA_TYPE_AUDIO:
1656 fifo_bytes = av_fifo_size(ost->fifo);
1657 if (fifo_bytes > 0) {
1658 /* encode any samples remaining in fifo */
1659 int frame_bytes = fifo_bytes;
1661 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1663 /* pad last frame with silence if needed */
1664 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1665 frame_bytes = enc->frame_size * enc->channels *
1666 av_get_bytes_per_sample(enc->sample_fmt);
1667 if (allocated_audio_buf_size < frame_bytes)
1669 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1671 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1673 /* flush encoder with NULL frames until it is done
1674 returning packets */
1675 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1681 case AVMEDIA_TYPE_VIDEO:
1682 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1684 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1688 if (enc->coded_frame && enc->coded_frame->key_frame)
1689 pkt.flags |= AV_PKT_FLAG_KEY;
1690 if (ost->logfile && enc->stats_out) {
1691 fprintf(ost->logfile, "%s", enc->stats_out);
1697 pkt.data = bit_buffer;
1699 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1700 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1701 write_frame(os, &pkt, ost);
1713 * Check whether a packet from ist should be written into ost at this time
1715 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1717 OutputFile *of = &output_files[ost->file_index];
1718 int ist_index = ist - input_streams;
1720 if (ost->source_index != ist_index)
1723 if (of->start_time && ist->pts < of->start_time)
1726 if (of->recording_time != INT64_MAX &&
1727 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1728 (AVRational){ 1, 1000000 }) >= 0) {
1729 ost->is_past_recording_time = 1;
1736 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1738 OutputFile *of = &output_files[ost->file_index];
1739 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1742 av_init_packet(&opkt);
1744 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1745 !ost->copy_initial_nonkeyframes)
1748 /* force the input stream PTS */
1749 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1750 audio_size += pkt->size;
1751 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1752 video_size += pkt->size;
1756 if (pkt->pts != AV_NOPTS_VALUE)
1757 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1759 opkt.pts = AV_NOPTS_VALUE;
1761 if (pkt->dts == AV_NOPTS_VALUE)
1762 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1764 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1765 opkt.dts -= ost_tb_start_time;
1767 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1768 opkt.flags = pkt->flags;
1770 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1771 if ( ost->st->codec->codec_id != CODEC_ID_H264
1772 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1773 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1775 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1776 opkt.destruct = av_destruct_packet;
1778 opkt.data = pkt->data;
1779 opkt.size = pkt->size;
1782 write_frame(of->ctx, &opkt, ost);
1783 ost->st->codec->frame_number++;
1784 av_free_packet(&opkt);
1787 static void rate_emu_sleep(InputStream *ist)
1789 if (input_files[ist->file_index].rate_emu) {
1790 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1791 int64_t now = av_gettime() - ist->start;
1797 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1799 AVFrame *decoded_frame;
1800 AVCodecContext *avctx = ist->st->codec;
1801 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1804 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1805 return AVERROR(ENOMEM);
1807 avcodec_get_frame_defaults(ist->decoded_frame);
1808 decoded_frame = ist->decoded_frame;
1810 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1816 /* no audio frame */
1820 /* if the decoder provides a pts, use it instead of the last packet pts.
1821 the decoder could be delaying output by a packet or more. */
1822 if (decoded_frame->pts != AV_NOPTS_VALUE)
1823 ist->next_pts = decoded_frame->pts;
1825 /* increment next_pts to use for the case where the input stream does not
1826 have timestamps or there are multiple frames in the packet */
1827 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1830 // preprocess audio (volume)
1831 if (audio_volume != 256) {
1832 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1833 void *samples = decoded_frame->data[0];
1834 switch (avctx->sample_fmt) {
1835 case AV_SAMPLE_FMT_U8:
1837 uint8_t *volp = samples;
1838 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1839 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1840 *volp++ = av_clip_uint8(v);
1844 case AV_SAMPLE_FMT_S16:
1846 int16_t *volp = samples;
1847 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1848 int v = ((*volp) * audio_volume + 128) >> 8;
1849 *volp++ = av_clip_int16(v);
1853 case AV_SAMPLE_FMT_S32:
1855 int32_t *volp = samples;
1856 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1857 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1858 *volp++ = av_clipl_int32(v);
1862 case AV_SAMPLE_FMT_FLT:
1864 float *volp = samples;
1865 float scale = audio_volume / 256.f;
1866 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1871 case AV_SAMPLE_FMT_DBL:
1873 double *volp = samples;
1874 double scale = audio_volume / 256.;
1875 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1881 av_log(NULL, AV_LOG_FATAL,
1882 "Audio volume adjustment on sample format %s is not supported.\n",
1883 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1888 rate_emu_sleep(ist);
1890 for (i = 0; i < nb_output_streams; i++) {
1891 OutputStream *ost = &output_streams[i];
1893 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1895 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
1901 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1903 AVFrame *decoded_frame, *filtered_frame = NULL;
1904 void *buffer_to_free = NULL;
1908 int frame_available = 1;
1911 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1912 return AVERROR(ENOMEM);
1914 avcodec_get_frame_defaults(ist->decoded_frame);
1915 decoded_frame = ist->decoded_frame;
1916 pkt->pts = *pkt_pts;
1917 pkt->dts = ist->pts;
1918 *pkt_pts = AV_NOPTS_VALUE;
1920 ret = avcodec_decode_video2(ist->st->codec,
1921 decoded_frame, got_output, pkt);
1925 quality = same_quant ? decoded_frame->quality : 0;
1927 /* no picture yet */
1930 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1931 decoded_frame->pkt_dts);
1933 ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1934 else if (ist->st->codec->time_base.num != 0) {
1935 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1936 ist->st->codec->ticks_per_frame;
1937 ist->next_pts += ((int64_t)AV_TIME_BASE *
1938 ist->st->codec->time_base.num * ticks) /
1939 ist->st->codec->time_base.den;
1942 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1944 rate_emu_sleep(ist);
1946 for (i = 0; i < nb_output_streams; i++) {
1947 OutputStream *ost = &output_streams[i];
1948 int frame_size, resample_changed;
1950 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1954 resample_changed = ost->resample_width != decoded_frame->width ||
1955 ost->resample_height != decoded_frame->height ||
1956 ost->resample_pix_fmt != decoded_frame->format;
1957 if (resample_changed) {
1958 av_log(NULL, AV_LOG_INFO,
1959 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1960 ist->file_index, ist->st->index,
1961 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1962 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1964 avfilter_graph_free(&ost->graph);
1965 if (configure_video_filters(ist, ost)) {
1966 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1970 ost->resample_width = decoded_frame->width;
1971 ost->resample_height = decoded_frame->height;
1972 ost->resample_pix_fmt = decoded_frame->format;
1975 if (ist->st->sample_aspect_ratio.num)
1976 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1977 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1978 FrameBuffer *buf = decoded_frame->opaque;
1979 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1980 decoded_frame->data, decoded_frame->linesize,
1981 AV_PERM_READ | AV_PERM_PRESERVE,
1982 ist->st->codec->width, ist->st->codec->height,
1983 ist->st->codec->pix_fmt);
1985 avfilter_copy_frame_props(fb, decoded_frame);
1987 fb->buf->priv = buf;
1988 fb->buf->free = filter_release_buffer;
1991 av_buffersrc_buffer(ost->input_video_filter, fb);
1993 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
1994 ist->pts, decoded_frame->sample_aspect_ratio);
1996 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1997 av_free(buffer_to_free);
1998 return AVERROR(ENOMEM);
2000 avcodec_get_frame_defaults(ist->filtered_frame);
2001 filtered_frame = ist->filtered_frame;
2003 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
2004 while (frame_available) {
2005 AVRational ist_pts_tb;
2006 if (ost->output_video_filter)
2007 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
2009 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
2010 if (ost->picref->video && !ost->frame_aspect_ratio)
2011 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
2013 filtered_frame = decoded_frame;
2016 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
2017 same_quant ? quality : ost->st->codec->global_quality);
2018 if (vstats_filename && frame_size)
2019 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
2021 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
2023 avfilter_unref_buffer(ost->picref);
2028 av_free(buffer_to_free);
2032 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2034 AVSubtitle subtitle;
2035 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2036 &subtitle, got_output, pkt);
2042 rate_emu_sleep(ist);
2044 for (i = 0; i < nb_output_streams; i++) {
2045 OutputStream *ost = &output_streams[i];
2047 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2050 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2053 avsubtitle_free(&subtitle);
2057 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2058 static int output_packet(InputStream *ist,
2059 OutputStream *ost_table, int nb_ostreams,
2060 const AVPacket *pkt)
2064 int64_t pkt_pts = AV_NOPTS_VALUE;
2067 if (ist->next_pts == AV_NOPTS_VALUE)
2068 ist->next_pts = ist->pts;
2072 av_init_packet(&avpkt);
2080 if (pkt->dts != AV_NOPTS_VALUE)
2081 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2082 if (pkt->pts != AV_NOPTS_VALUE)
2083 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2085 // while we have more to decode or while the decoder did output something on EOF
2086 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2090 ist->pts = ist->next_pts;
2092 if (avpkt.size && avpkt.size != pkt->size) {
2093 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2094 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2095 ist->showed_multi_packet_warning = 1;
2098 switch (ist->st->codec->codec_type) {
2099 case AVMEDIA_TYPE_AUDIO:
2100 ret = transcode_audio (ist, &avpkt, &got_output);
2102 case AVMEDIA_TYPE_VIDEO:
2103 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2105 case AVMEDIA_TYPE_SUBTITLE:
2106 ret = transcode_subtitles(ist, &avpkt, &got_output);
2114 // touch data and size only if not EOF
2124 /* handle stream copy */
2125 if (!ist->decoding_needed) {
2126 rate_emu_sleep(ist);
2127 ist->pts = ist->next_pts;
2128 switch (ist->st->codec->codec_type) {
2129 case AVMEDIA_TYPE_AUDIO:
2130 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2131 ist->st->codec->sample_rate;
2133 case AVMEDIA_TYPE_VIDEO:
2134 if (ist->st->codec->time_base.num != 0) {
2135 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2136 ist->next_pts += ((int64_t)AV_TIME_BASE *
2137 ist->st->codec->time_base.num * ticks) /
2138 ist->st->codec->time_base.den;
2143 for (i = 0; pkt && i < nb_ostreams; i++) {
2144 OutputStream *ost = &ost_table[i];
2146 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2149 do_streamcopy(ist, ost, pkt);
2155 static void print_sdp(OutputFile *output_files, int n)
2159 AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
2163 for (i = 0; i < n; i++)
2164 avc[i] = output_files[i].ctx;
2166 av_sdp_create(avc, n, sdp, sizeof(sdp));
2167 printf("SDP:\n%s\n", sdp);
2172 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2173 char *error, int error_len)
2176 InputStream *ist = &input_streams[ist_index];
2177 if (ist->decoding_needed) {
2178 AVCodec *codec = ist->dec;
2180 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2181 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2182 return AVERROR(EINVAL);
2185 /* update requested sample format for the decoder based on the
2186 corresponding encoder sample format */
2187 for (i = 0; i < nb_output_streams; i++) {
2188 OutputStream *ost = &output_streams[i];
2189 if (ost->source_index == ist_index) {
2190 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2195 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2196 ist->st->codec->get_buffer = codec_get_buffer;
2197 ist->st->codec->release_buffer = codec_release_buffer;
2198 ist->st->codec->opaque = ist;
2201 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2202 av_dict_set(&ist->opts, "threads", "auto", 0);
2203 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2204 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2205 ist->file_index, ist->st->index);
2206 return AVERROR(EINVAL);
2208 assert_codec_experimental(ist->st->codec, 0);
2209 assert_avoptions(ist->opts);
2212 ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2213 ist->next_pts = AV_NOPTS_VALUE;
2214 init_pts_correction(&ist->pts_ctx);
2220 static int transcode_init(OutputFile *output_files,
2221 int nb_output_files,
2222 InputFile *input_files,
2225 int ret = 0, i, j, k;
2226 AVFormatContext *oc;
2227 AVCodecContext *codec, *icodec;
2233 /* init framerate emulation */
2234 for (i = 0; i < nb_input_files; i++) {
2235 InputFile *ifile = &input_files[i];
2236 if (ifile->rate_emu)
2237 for (j = 0; j < ifile->nb_streams; j++)
2238 input_streams[j + ifile->ist_index].start = av_gettime();
2241 /* output stream init */
2242 for (i = 0; i < nb_output_files; i++) {
2243 oc = output_files[i].ctx;
2244 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2245 av_dump_format(oc, i, oc->filename, 1);
2246 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2247 return AVERROR(EINVAL);
2251 /* for each output stream, we compute the right encoding parameters */
2252 for (i = 0; i < nb_output_streams; i++) {
2253 ost = &output_streams[i];
2254 oc = output_files[ost->file_index].ctx;
2255 ist = &input_streams[ost->source_index];
2257 if (ost->attachment_filename)
2260 codec = ost->st->codec;
2261 icodec = ist->st->codec;
2263 ost->st->disposition = ist->st->disposition;
2264 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2265 codec->chroma_sample_location = icodec->chroma_sample_location;
2267 if (ost->stream_copy) {
2268 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2270 if (extra_size > INT_MAX) {
2271 return AVERROR(EINVAL);
2274 /* if stream_copy is selected, no need to decode or encode */
2275 codec->codec_id = icodec->codec_id;
2276 codec->codec_type = icodec->codec_type;
2278 if (!codec->codec_tag) {
2279 if (!oc->oformat->codec_tag ||
2280 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2281 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2282 codec->codec_tag = icodec->codec_tag;
2285 codec->bit_rate = icodec->bit_rate;
2286 codec->rc_max_rate = icodec->rc_max_rate;
2287 codec->rc_buffer_size = icodec->rc_buffer_size;
2288 codec->field_order = icodec->field_order;
2289 codec->extradata = av_mallocz(extra_size);
2290 if (!codec->extradata) {
2291 return AVERROR(ENOMEM);
2293 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2294 codec->extradata_size = icodec->extradata_size;
2296 codec->time_base = icodec->time_base;
2297 codec->time_base.num *= icodec->ticks_per_frame;
2298 av_reduce(&codec->time_base.num, &codec->time_base.den,
2299 codec->time_base.num, codec->time_base.den, INT_MAX);
2301 codec->time_base = ist->st->time_base;
2303 switch (codec->codec_type) {
2304 case AVMEDIA_TYPE_AUDIO:
2305 if (audio_volume != 256) {
2306 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2309 codec->channel_layout = icodec->channel_layout;
2310 codec->sample_rate = icodec->sample_rate;
2311 codec->channels = icodec->channels;
2312 codec->frame_size = icodec->frame_size;
2313 codec->audio_service_type = icodec->audio_service_type;
2314 codec->block_align = icodec->block_align;
2316 case AVMEDIA_TYPE_VIDEO:
2317 codec->pix_fmt = icodec->pix_fmt;
2318 codec->width = icodec->width;
2319 codec->height = icodec->height;
2320 codec->has_b_frames = icodec->has_b_frames;
2321 if (!codec->sample_aspect_ratio.num) {
2322 codec->sample_aspect_ratio =
2323 ost->st->sample_aspect_ratio =
2324 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2325 ist->st->codec->sample_aspect_ratio.num ?
2326 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2329 case AVMEDIA_TYPE_SUBTITLE:
2330 codec->width = icodec->width;
2331 codec->height = icodec->height;
2333 case AVMEDIA_TYPE_DATA:
2334 case AVMEDIA_TYPE_ATTACHMENT:
2341 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2343 ist->decoding_needed = 1;
2344 ost->encoding_needed = 1;
2346 switch (codec->codec_type) {
2347 case AVMEDIA_TYPE_AUDIO:
2348 ost->fifo = av_fifo_alloc(1024);
2350 return AVERROR(ENOMEM);
2352 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2354 if (!codec->sample_rate)
2355 codec->sample_rate = icodec->sample_rate;
2356 choose_sample_rate(ost->st, ost->enc);
2357 codec->time_base = (AVRational){ 1, codec->sample_rate };
2359 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2360 codec->sample_fmt = icodec->sample_fmt;
2361 choose_sample_fmt(ost->st, ost->enc);
2363 if (!codec->channels)
2364 codec->channels = icodec->channels;
2365 codec->channel_layout = icodec->channel_layout;
2366 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2367 codec->channel_layout = 0;
2369 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2370 icodec->request_channels = codec-> channels;
2371 ost->resample_sample_fmt = icodec->sample_fmt;
2372 ost->resample_sample_rate = icodec->sample_rate;
2373 ost->resample_channels = icodec->channels;
2375 case AVMEDIA_TYPE_VIDEO:
2376 if (codec->pix_fmt == PIX_FMT_NONE)
2377 codec->pix_fmt = icodec->pix_fmt;
2378 choose_pixel_fmt(ost->st, ost->enc);
2380 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2381 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2385 if (!codec->width || !codec->height) {
2386 codec->width = icodec->width;
2387 codec->height = icodec->height;
2390 ost->video_resample = codec->width != icodec->width ||
2391 codec->height != icodec->height ||
2392 codec->pix_fmt != icodec->pix_fmt;
2393 if (ost->video_resample) {
2394 #if !CONFIG_AVFILTER
2395 avcodec_get_frame_defaults(&ost->pict_tmp);
2396 if (avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2397 codec->width, codec->height)) {
2398 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2401 ost->img_resample_ctx = sws_getContext(
2408 ost->sws_flags, NULL, NULL, NULL);
2409 if (ost->img_resample_ctx == NULL) {
2410 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2414 codec->bits_per_raw_sample = 0;
2417 ost->resample_height = icodec->height;
2418 ost->resample_width = icodec->width;
2419 ost->resample_pix_fmt = icodec->pix_fmt;
2421 if (!ost->frame_rate.num)
2422 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
2423 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2424 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2425 ost->frame_rate = ost->enc->supported_framerates[idx];
2427 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2430 if (configure_video_filters(ist, ost)) {
2431 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2436 case AVMEDIA_TYPE_SUBTITLE:
2443 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2444 char logfilename[1024];
2447 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2448 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2450 if (codec->flags & CODEC_FLAG_PASS1) {
2451 f = fopen(logfilename, "wb");
2453 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2454 logfilename, strerror(errno));
2460 size_t logbuffer_size;
2461 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2462 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2466 codec->stats_in = logbuffer;
2470 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2471 int size = codec->width * codec->height;
2472 bit_buffer_size = FFMAX(bit_buffer_size, 6 * size + 200);
2477 bit_buffer = av_malloc(bit_buffer_size);
2479 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2481 return AVERROR(ENOMEM);
2484 /* open each encoder */
2485 for (i = 0; i < nb_output_streams; i++) {
2486 ost = &output_streams[i];
2487 if (ost->encoding_needed) {
2488 AVCodec *codec = ost->enc;
2489 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2491 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2492 ost->st->codec->codec_id, ost->file_index, ost->index);
2493 ret = AVERROR(EINVAL);
2496 if (dec->subtitle_header) {
2497 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2498 if (!ost->st->codec->subtitle_header) {
2499 ret = AVERROR(ENOMEM);
2502 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2503 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2505 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2506 av_dict_set(&ost->opts, "threads", "auto", 0);
2507 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2508 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2509 ost->file_index, ost->index);
2510 ret = AVERROR(EINVAL);
2513 assert_codec_experimental(ost->st->codec, 1);
2514 assert_avoptions(ost->opts);
2515 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2516 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2517 "It takes bits/s as argument, not kbits/s\n");
2518 extra_size += ost->st->codec->extradata_size;
2520 if (ost->st->codec->me_threshold)
2521 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2525 /* init input streams */
2526 for (i = 0; i < nb_input_streams; i++)
2527 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2530 /* discard unused programs */
2531 for (i = 0; i < nb_input_files; i++) {
2532 InputFile *ifile = &input_files[i];
2533 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2534 AVProgram *p = ifile->ctx->programs[j];
2535 int discard = AVDISCARD_ALL;
2537 for (k = 0; k < p->nb_stream_indexes; k++)
2538 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2539 discard = AVDISCARD_DEFAULT;
2542 p->discard = discard;
2546 /* open files and write file headers */
2547 for (i = 0; i < nb_output_files; i++) {
2548 oc = output_files[i].ctx;
2549 oc->interrupt_callback = int_cb;
2550 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2551 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2552 ret = AVERROR(EINVAL);
2555 assert_avoptions(output_files[i].opts);
2556 if (strcmp(oc->oformat->name, "rtp")) {
2562 /* dump the file output parameters - cannot be done before in case
2564 for (i = 0; i < nb_output_files; i++) {
2565 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2568 /* dump the stream mapping */
2569 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2570 for (i = 0; i < nb_output_streams; i++) {
2571 ost = &output_streams[i];
2573 if (ost->attachment_filename) {
2574 /* an attached file */
2575 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2576 ost->attachment_filename, ost->file_index, ost->index);
2579 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2580 input_streams[ost->source_index].file_index,
2581 input_streams[ost->source_index].st->index,
2584 if (ost->sync_ist != &input_streams[ost->source_index])
2585 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2586 ost->sync_ist->file_index,
2587 ost->sync_ist->st->index);
2588 if (ost->stream_copy)
2589 av_log(NULL, AV_LOG_INFO, " (copy)");
2591 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2592 input_streams[ost->source_index].dec->name : "?",
2593 ost->enc ? ost->enc->name : "?");
2594 av_log(NULL, AV_LOG_INFO, "\n");
2598 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2603 print_sdp(output_files, nb_output_files);
2610 * The following code is the main loop of the file converter
2612 static int transcode(OutputFile *output_files,
2613 int nb_output_files,
2614 InputFile *input_files,
2618 AVFormatContext *is, *os;
2622 int no_packet_count = 0;
2623 int64_t timer_start;
2625 if (!(no_packet = av_mallocz(nb_input_files)))
2628 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2632 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2635 timer_start = av_gettime();
2637 for (; received_sigterm == 0;) {
2638 int file_index, ist_index;
2643 ipts_min = INT64_MAX;
2646 /* select the stream that we must read now by looking at the
2647 smallest output pts */
2649 for (i = 0; i < nb_output_streams; i++) {
2653 ost = &output_streams[i];
2654 of = &output_files[ost->file_index];
2655 os = output_files[ost->file_index].ctx;
2656 ist = &input_streams[ost->source_index];
2657 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2658 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2660 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2662 if (!input_files[ist->file_index].eof_reached) {
2663 if (ipts < ipts_min) {
2666 file_index = ist->file_index;
2668 if (opts < opts_min) {
2670 if (!input_sync) file_index = ist->file_index;
2673 if (ost->frame_number >= ost->max_frames) {
2675 for (j = 0; j < of->ctx->nb_streams; j++)
2676 output_streams[of->ost_index + j].is_past_recording_time = 1;
2680 /* if none, if is finished */
2681 if (file_index < 0) {
2682 if (no_packet_count) {
2683 no_packet_count = 0;
2684 memset(no_packet, 0, nb_input_files);
2691 /* read a frame from it and output it in the fifo */
2692 is = input_files[file_index].ctx;
2693 ret = av_read_frame(is, &pkt);
2694 if (ret == AVERROR(EAGAIN)) {
2695 no_packet[file_index] = 1;
2700 input_files[file_index].eof_reached = 1;
2707 no_packet_count = 0;
2708 memset(no_packet, 0, nb_input_files);
2711 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2712 is->streams[pkt.stream_index]);
2714 /* the following test is needed in case new streams appear
2715 dynamically in stream : we ignore them */
2716 if (pkt.stream_index >= input_files[file_index].nb_streams)
2717 goto discard_packet;
2718 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2719 ist = &input_streams[ist_index];
2721 goto discard_packet;
2723 if (pkt.dts != AV_NOPTS_VALUE)
2724 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2725 if (pkt.pts != AV_NOPTS_VALUE)
2726 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2728 if (pkt.pts != AV_NOPTS_VALUE)
2729 pkt.pts *= ist->ts_scale;
2730 if (pkt.dts != AV_NOPTS_VALUE)
2731 pkt.dts *= ist->ts_scale;
2733 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
2735 // pkt.dts, input_files[ist->file_index].ts_offset,
2736 // ist->st->codec->codec_type);
2737 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2738 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2739 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2740 int64_t delta = pkt_dts - ist->next_pts;
2741 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->pts) && !copy_ts) {
2742 input_files[ist->file_index].ts_offset -= delta;
2743 av_log(NULL, AV_LOG_DEBUG,
2744 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2745 delta, input_files[ist->file_index].ts_offset);
2746 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2747 if (pkt.pts != AV_NOPTS_VALUE)
2748 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2752 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2753 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2755 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2756 ist->file_index, ist->st->index);
2759 av_free_packet(&pkt);
2764 av_free_packet(&pkt);
2766 /* dump report by using the output first video and audio streams */
2767 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2770 /* at the end of stream, we must flush the decoder buffers */
2771 for (i = 0; i < nb_input_streams; i++) {
2772 ist = &input_streams[i];
2773 if (ist->decoding_needed) {
2774 output_packet(ist, output_streams, nb_output_streams, NULL);
2777 flush_encoders(output_streams, nb_output_streams);
2781 /* write the trailer if needed and close file */
2782 for (i = 0; i < nb_output_files; i++) {
2783 os = output_files[i].ctx;
2784 av_write_trailer(os);
2787 /* dump report by using the first video and audio streams */
2788 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2790 /* close each encoder */
2791 for (i = 0; i < nb_output_streams; i++) {
2792 ost = &output_streams[i];
2793 if (ost->encoding_needed) {
2794 av_freep(&ost->st->codec->stats_in);
2795 avcodec_close(ost->st->codec);
2798 avfilter_graph_free(&ost->graph);
2802 /* close each decoder */
2803 for (i = 0; i < nb_input_streams; i++) {
2804 ist = &input_streams[i];
2805 if (ist->decoding_needed) {
2806 avcodec_close(ist->st->codec);
2814 av_freep(&bit_buffer);
2815 av_freep(&no_packet);
2817 if (output_streams) {
2818 for (i = 0; i < nb_output_streams; i++) {
2819 ost = &output_streams[i];
2821 if (ost->stream_copy)
2822 av_freep(&ost->st->codec->extradata);
2824 fclose(ost->logfile);
2825 ost->logfile = NULL;
2827 av_fifo_free(ost->fifo); /* works even if fifo is not
2828 initialized but set to zero */
2829 av_freep(&ost->st->codec->subtitle_header);
2830 av_free(ost->pict_tmp.data[0]);
2831 av_free(ost->forced_kf_pts);
2832 if (ost->video_resample)
2833 sws_freeContext(ost->img_resample_ctx);
2835 audio_resample_close(ost->resample);
2836 if (ost->reformat_ctx)
2837 av_audio_convert_free(ost->reformat_ctx);
2838 av_dict_free(&ost->opts);
2845 static double parse_frame_aspect_ratio(const char *arg)
2852 p = strchr(arg, ':');
2854 x = strtol(arg, &end, 10);
2856 y = strtol(end + 1, &end, 10);
2858 ar = (double)x / (double)y;
2860 ar = strtod(arg, NULL);
2863 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2869 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2871 return parse_option(o, "codec:a", arg, options);
2874 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2876 return parse_option(o, "codec:v", arg, options);
2879 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2881 return parse_option(o, "codec:s", arg, options);
2884 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2886 return parse_option(o, "codec:d", arg, options);
2889 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2891 StreamMap *m = NULL;
2892 int i, negative = 0, file_idx;
2893 int sync_file_idx = -1, sync_stream_idx;
2901 map = av_strdup(arg);
2903 /* parse sync stream first, just pick first matching stream */
2904 if (sync = strchr(map, ',')) {
2906 sync_file_idx = strtol(sync + 1, &sync, 0);
2907 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2908 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2913 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2914 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2915 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2916 sync_stream_idx = i;
2919 if (i == input_files[sync_file_idx].nb_streams) {
2920 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2921 "match any streams.\n", arg);
2927 file_idx = strtol(map, &p, 0);
2928 if (file_idx >= nb_input_files || file_idx < 0) {
2929 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2933 /* disable some already defined maps */
2934 for (i = 0; i < o->nb_stream_maps; i++) {
2935 m = &o->stream_maps[i];
2936 if (file_idx == m->file_index &&
2937 check_stream_specifier(input_files[m->file_index].ctx,
2938 input_files[m->file_index].ctx->streams[m->stream_index],
2939 *p == ':' ? p + 1 : p) > 0)
2943 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2944 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2945 *p == ':' ? p + 1 : p) <= 0)
2947 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2948 &o->nb_stream_maps, o->nb_stream_maps + 1);
2949 m = &o->stream_maps[o->nb_stream_maps - 1];
2951 m->file_index = file_idx;
2952 m->stream_index = i;
2954 if (sync_file_idx >= 0) {
2955 m->sync_file_index = sync_file_idx;
2956 m->sync_stream_index = sync_stream_idx;
2958 m->sync_file_index = file_idx;
2959 m->sync_stream_index = i;
2964 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2972 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2974 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2975 &o->nb_attachments, o->nb_attachments + 1);
2976 o->attachments[o->nb_attachments - 1] = arg;
2981 * Parse a metadata specifier in arg.
2982 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2983 * @param index for type c/p, chapter/program index is written here
2984 * @param stream_spec for type s, the stream specifier is written here
2986 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2994 if (*(++arg) && *arg != ':') {
2995 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2998 *stream_spec = *arg == ':' ? arg + 1 : "";
3002 if (*(++arg) == ':')
3003 *index = strtol(++arg, NULL, 0);
3006 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3013 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
3015 AVDictionary **meta_in = NULL;
3016 AVDictionary **meta_out;
3018 char type_in, type_out;
3019 const char *istream_spec = NULL, *ostream_spec = NULL;
3020 int idx_in = 0, idx_out = 0;
3022 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3023 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3025 if (type_in == 'g' || type_out == 'g')
3026 o->metadata_global_manual = 1;
3027 if (type_in == 's' || type_out == 's')
3028 o->metadata_streams_manual = 1;
3029 if (type_in == 'c' || type_out == 'c')
3030 o->metadata_chapters_manual = 1;
3032 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3033 if ((index) < 0 || (index) >= (nb_elems)) {\
3034 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3039 #define SET_DICT(type, meta, context, index)\
3042 meta = &context->metadata;\
3045 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3046 meta = &context->chapters[index]->metadata;\
3049 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3050 meta = &context->programs[index]->metadata;\
3054 SET_DICT(type_in, meta_in, ic, idx_in);
3055 SET_DICT(type_out, meta_out, oc, idx_out);
3057 /* for input streams choose first matching stream */
3058 if (type_in == 's') {
3059 for (i = 0; i < ic->nb_streams; i++) {
3060 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3061 meta_in = &ic->streams[i]->metadata;
3067 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3072 if (type_out == 's') {
3073 for (i = 0; i < oc->nb_streams; i++) {
3074 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3075 meta_out = &oc->streams[i]->metadata;
3076 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3081 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3086 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3088 const char *codec_string = encoder ? "encoder" : "decoder";
3092 avcodec_find_encoder_by_name(name) :
3093 avcodec_find_decoder_by_name(name);
3095 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3098 if (codec->type != type) {
3099 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3105 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3107 char *codec_name = NULL;
3109 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3111 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3112 st->codec->codec_id = codec->id;
3115 return avcodec_find_decoder(st->codec->codec_id);
3119 * Add all the streams from the given input file to the global
3120 * list of input streams.
3122 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3126 for (i = 0; i < ic->nb_streams; i++) {
3127 AVStream *st = ic->streams[i];
3128 AVCodecContext *dec = st->codec;
3131 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3132 ist = &input_streams[nb_input_streams - 1];
3134 ist->file_index = nb_input_files;
3136 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3138 ist->ts_scale = 1.0;
3139 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3141 ist->dec = choose_decoder(o, ic, st);
3143 switch (dec->codec_type) {
3144 case AVMEDIA_TYPE_AUDIO:
3145 if (o->audio_disable)
3146 st->discard = AVDISCARD_ALL;
3148 case AVMEDIA_TYPE_VIDEO:
3150 dec->flags |= CODEC_FLAG_EMU_EDGE;
3151 dec->height >>= dec->lowres;
3152 dec->width >>= dec->lowres;
3155 if (o->video_disable)
3156 st->discard = AVDISCARD_ALL;
3157 else if (video_discard)
3158 st->discard = video_discard;
3160 case AVMEDIA_TYPE_DATA:
3162 case AVMEDIA_TYPE_SUBTITLE:
3163 if (o->subtitle_disable)
3164 st->discard = AVDISCARD_ALL;
3166 case AVMEDIA_TYPE_ATTACHMENT:
3167 case AVMEDIA_TYPE_UNKNOWN:
3175 static void assert_file_overwrite(const char *filename)
3177 if (!file_overwrite &&
3178 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3179 av_strstart(filename, "file:", NULL))) {
3180 if (avio_check(filename, 0) == 0) {
3182 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3184 if (!read_yesno()) {
3185 fprintf(stderr, "Not overwriting - exiting\n");
3190 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3197 static void dump_attachment(AVStream *st, const char *filename)
3200 AVIOContext *out = NULL;
3201 AVDictionaryEntry *e;
3203 if (!st->codec->extradata_size) {
3204 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3205 nb_input_files - 1, st->index);
3208 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3209 filename = e->value;
3211 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3212 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3216 assert_file_overwrite(filename);
3218 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3219 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3224 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3229 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3231 AVFormatContext *ic;
3232 AVInputFormat *file_iformat = NULL;
3236 AVDictionary **opts;
3237 int orig_nb_streams; // number of streams before avformat_find_stream_info
3240 if (!(file_iformat = av_find_input_format(o->format))) {
3241 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3246 if (!strcmp(filename, "-"))
3249 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3250 !strcmp(filename, "/dev/stdin");
3252 /* get default parameters from command line */
3253 ic = avformat_alloc_context();
3255 print_error(filename, AVERROR(ENOMEM));
3258 if (o->nb_audio_sample_rate) {
3259 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3260 av_dict_set(&format_opts, "sample_rate", buf, 0);
3262 if (o->nb_audio_channels) {
3263 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3264 av_dict_set(&format_opts, "channels", buf, 0);
3266 if (o->nb_frame_rates) {
3267 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3269 if (o->nb_frame_sizes) {
3270 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3272 if (o->nb_frame_pix_fmts)
3273 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3275 ic->flags |= AVFMT_FLAG_NONBLOCK;
3276 ic->interrupt_callback = int_cb;
3278 /* open the input file with generic libav function */
3279 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3281 print_error(filename, err);
3284 assert_avoptions(format_opts);
3286 /* apply forced codec ids */
3287 for (i = 0; i < ic->nb_streams; i++)
3288 choose_decoder(o, ic, ic->streams[i]);
3290 /* Set AVCodecContext options for avformat_find_stream_info */
3291 opts = setup_find_stream_info_opts(ic, codec_opts);
3292 orig_nb_streams = ic->nb_streams;
3294 /* If not enough info to get the stream parameters, we decode the
3295 first frames to get it. (used in mpeg case for example) */
3296 ret = avformat_find_stream_info(ic, opts);
3298 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3299 avformat_close_input(&ic);
3303 timestamp = o->start_time;
3304 /* add the stream start time */
3305 if (ic->start_time != AV_NOPTS_VALUE)
3306 timestamp += ic->start_time;
3308 /* if seeking requested, we execute it */
3309 if (o->start_time != 0) {
3310 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3312 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3313 filename, (double)timestamp / AV_TIME_BASE);
3317 /* update the current parameters so that they match the one of the input stream */
3318 add_input_streams(o, ic);
3320 /* dump the file content */
3321 av_dump_format(ic, nb_input_files, filename, 0);
3323 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3324 input_files[nb_input_files - 1].ctx = ic;
3325 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3326 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3327 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3328 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3330 for (i = 0; i < o->nb_dump_attachment; i++) {
3333 for (j = 0; j < ic->nb_streams; j++) {
3334 AVStream *st = ic->streams[j];
3336 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3337 dump_attachment(st, o->dump_attachment[i].u.str);
3341 for (i = 0; i < orig_nb_streams; i++)
3342 av_dict_free(&opts[i]);
3349 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3350 AVCodecContext *avctx)
3356 for (p = kf; *p; p++)
3359 ost->forced_kf_count = n;
3360 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3361 if (!ost->forced_kf_pts) {
3362 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3365 for (i = 0; i < n; i++) {
3366 p = i ? strchr(p, ',') + 1 : kf;
3367 t = parse_time_or_die("force_key_frames", p, 1);
3368 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3372 static uint8_t *get_line(AVIOContext *s)
3378 if (avio_open_dyn_buf(&line) < 0) {
3379 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3383 while ((c = avio_r8(s)) && c != '\n')
3386 avio_close_dyn_buf(line, &buf);
3391 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3394 char filename[1000];
3395 const char *base[3] = { getenv("AVCONV_DATADIR"),
3400 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3404 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3405 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3406 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3409 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3410 i != 1 ? "" : "/.avconv", preset_name);
3411 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3417 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3419 char *codec_name = NULL;
3421 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3423 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3424 NULL, ost->st->codec->codec_type);
3425 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3426 } else if (!strcmp(codec_name, "copy"))
3427 ost->stream_copy = 1;
3429 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3430 ost->st->codec->codec_id = ost->enc->id;
3434 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3437 AVStream *st = avformat_new_stream(oc, NULL);
3438 int idx = oc->nb_streams - 1, ret = 0;
3439 char *bsf = NULL, *next, *codec_tag = NULL;
3440 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3442 char *buf = NULL, *arg = NULL, *preset = NULL;
3443 AVIOContext *s = NULL;
3446 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3450 if (oc->nb_streams - 1 < o->nb_streamid_map)
3451 st->id = o->streamid_map[oc->nb_streams - 1];
3453 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3454 nb_output_streams + 1);
3455 ost = &output_streams[nb_output_streams - 1];
3456 ost->file_index = nb_output_files;
3459 st->codec->codec_type = type;
3460 choose_encoder(o, oc, ost);
3462 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3465 avcodec_get_context_defaults3(st->codec, ost->enc);
3466 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3468 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3469 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3472 if (!buf[0] || buf[0] == '#') {
3476 if (!(arg = strchr(buf, '='))) {
3477 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3481 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3483 } while (!s->eof_reached);
3487 av_log(NULL, AV_LOG_FATAL,
3488 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3489 preset, ost->file_index, ost->index);
3493 ost->max_frames = INT64_MAX;
3494 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3496 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3498 if (next = strchr(bsf, ','))
3500 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3501 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3505 bsfc_prev->next = bsfc;
3507 ost->bitstream_filters = bsfc;
3513 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3515 uint32_t tag = strtol(codec_tag, &next, 0);
3517 tag = AV_RL32(codec_tag);
3518 st->codec->codec_tag = tag;
3521 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3522 if (qscale >= 0 || same_quant) {
3523 st->codec->flags |= CODEC_FLAG_QSCALE;
3524 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3527 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3528 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3530 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3534 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3537 const char *p = str;
3544 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3551 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3555 AVCodecContext *video_enc;
3557 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3559 video_enc = st->codec;
3561 if (!ost->stream_copy) {
3562 const char *p = NULL;
3563 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3564 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3565 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3568 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3569 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3570 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3574 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3575 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3576 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3580 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3581 if (frame_aspect_ratio)
3582 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3584 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3585 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3586 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3589 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3591 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3593 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3594 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3597 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3599 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3601 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3602 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3605 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3608 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3609 for (i = 0; p; i++) {
3611 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
3613 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3616 video_enc->rc_override =
3617 av_realloc(video_enc->rc_override,
3618 sizeof(RcOverride) * (i + 1));
3619 video_enc->rc_override[i].start_frame = start;
3620 video_enc->rc_override[i].end_frame = end;
3622 video_enc->rc_override[i].qscale = q;
3623 video_enc->rc_override[i].quality_factor = 1.0;
3626 video_enc->rc_override[i].qscale = 0;
3627 video_enc->rc_override[i].quality_factor = -q/100.0;
3632 video_enc->rc_override_count = i;
3633 if (!video_enc->rc_initial_buffer_occupancy)
3634 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
3635 video_enc->intra_dc_precision = intra_dc_precision - 8;
3640 video_enc->flags |= CODEC_FLAG_PASS1;
3642 video_enc->flags |= CODEC_FLAG_PASS2;
3646 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3647 if (forced_key_frames)
3648 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3650 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3652 ost->top_field_first = -1;
3653 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3656 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3658 ost->avfilter = av_strdup(filters);
3661 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3667 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3671 AVCodecContext *audio_enc;
3673 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3676 audio_enc = st->codec;
3677 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3679 if (!ost->stream_copy) {
3680 char *sample_fmt = NULL;
3682 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3684 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3686 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3687 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3691 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3697 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3701 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3702 if (!ost->stream_copy) {
3703 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3710 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3712 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3713 ost->stream_copy = 1;
3717 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3721 AVCodecContext *subtitle_enc;
3723 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3725 subtitle_enc = st->codec;
3727 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3732 /* arg format is "output-stream-index:streamid-value". */
3733 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
3739 av_strlcpy(idx_str, arg, sizeof(idx_str));
3740 p = strchr(idx_str, ':');
3742 av_log(NULL, AV_LOG_FATAL,
3743 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3748 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3749 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
3750 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3754 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3756 AVFormatContext *is = ifile->ctx;
3757 AVFormatContext *os = ofile->ctx;
3760 for (i = 0; i < is->nb_chapters; i++) {
3761 AVChapter *in_ch = is->chapters[i], *out_ch;
3762 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
3763 AV_TIME_BASE_Q, in_ch->time_base);
3764 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3765 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3768 if (in_ch->end < ts_off)
3770 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3773 out_ch = av_mallocz(sizeof(AVChapter));
3775 return AVERROR(ENOMEM);
3777 out_ch->id = in_ch->id;
3778 out_ch->time_base = in_ch->time_base;
3779 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3780 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3783 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3786 os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
3788 return AVERROR(ENOMEM);
3789 os->chapters[os->nb_chapters - 1] = out_ch;
3794 static void opt_output_file(void *optctx, const char *filename)
3796 OptionsContext *o = optctx;
3797 AVFormatContext *oc;
3799 AVOutputFormat *file_oformat;
3803 if (!strcmp(filename, "-"))
3806 oc = avformat_alloc_context();
3808 print_error(filename, AVERROR(ENOMEM));
3813 file_oformat = av_guess_format(o->format, NULL, NULL);
3814 if (!file_oformat) {
3815 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
3819 file_oformat = av_guess_format(NULL, filename, NULL);
3820 if (!file_oformat) {
3821 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
3827 oc->oformat = file_oformat;
3828 oc->interrupt_callback = int_cb;
3829 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3831 if (!o->nb_stream_maps) {
3832 /* pick the "best" stream of each type */
3833 #define NEW_STREAM(type, index)\
3835 ost = new_ ## type ## _stream(o, oc);\
3836 ost->source_index = index;\
3837 ost->sync_ist = &input_streams[index];\
3838 input_streams[index].discard = 0;\
3841 /* video: highest resolution */
3842 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3843 int area = 0, idx = -1;
3844 for (i = 0; i < nb_input_streams; i++) {
3845 ist = &input_streams[i];
3846 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3847 ist->st->codec->width * ist->st->codec->height > area) {
3848 area = ist->st->codec->width * ist->st->codec->height;
3852 NEW_STREAM(video, idx);
3855 /* audio: most channels */
3856 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3857 int channels = 0, idx = -1;
3858 for (i = 0; i < nb_input_streams; i++) {
3859 ist = &input_streams[i];
3860 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3861 ist->st->codec->channels > channels) {
3862 channels = ist->st->codec->channels;
3866 NEW_STREAM(audio, idx);
3869 /* subtitles: pick first */
3870 if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3871 for (i = 0; i < nb_input_streams; i++)
3872 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3873 NEW_STREAM(subtitle, i);
3877 /* do something with data? */
3879 for (i = 0; i < o->nb_stream_maps; i++) {
3880 StreamMap *map = &o->stream_maps[i];
3885 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3886 switch (ist->st->codec->codec_type) {
3887 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
3888 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
3889 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3890 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
3891 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
3893 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
3894 map->file_index, map->stream_index);
3898 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3899 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3900 map->sync_stream_index];
3905 /* handle attached files */
3906 for (i = 0; i < o->nb_attachments; i++) {
3908 uint8_t *attachment;
3912 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
3913 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
3917 if ((len = avio_size(pb)) <= 0) {
3918 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
3922 if (!(attachment = av_malloc(len))) {
3923 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
3927 avio_read(pb, attachment, len);
3929 ost = new_attachment_stream(o, oc);
3930 ost->stream_copy = 0;
3931 ost->source_index = -1;
3932 ost->attachment_filename = o->attachments[i];
3933 ost->st->codec->extradata = attachment;
3934 ost->st->codec->extradata_size = len;
3936 p = strrchr(o->attachments[i], '/');
3937 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
3941 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3942 output_files[nb_output_files - 1].ctx = oc;
3943 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3944 output_files[nb_output_files - 1].recording_time = o->recording_time;
3945 output_files[nb_output_files - 1].start_time = o->start_time;
3946 output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3947 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3949 /* check filename in case of an image number is expected */
3950 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3951 if (!av_filename_number_test(oc->filename)) {
3952 print_error(oc->filename, AVERROR(EINVAL));
3957 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3958 /* test if it already exists to avoid losing precious files */
3959 assert_file_overwrite(filename);
3962 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
3963 &oc->interrupt_callback,
3964 &output_files[nb_output_files - 1].opts)) < 0) {
3965 print_error(filename, err);
3970 if (o->mux_preload) {
3972 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
3973 av_dict_set(&output_files[nb_output_files - 1].opts, "preload", buf, 0);
3975 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
3976 oc->flags |= AVFMT_FLAG_NONBLOCK;
3979 for (i = 0; i < o->nb_metadata_map; i++) {
3981 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
3983 if (in_file_index < 0)
3985 if (in_file_index >= nb_input_files) {
3986 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
3989 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index].ctx, o);
3993 if (o->chapters_input_file >= nb_input_files) {
3994 if (o->chapters_input_file == INT_MAX) {
3995 /* copy chapters from the first input file that has them*/
3996 o->chapters_input_file = -1;
3997 for (i = 0; i < nb_input_files; i++)
3998 if (input_files[i].ctx->nb_chapters) {
3999 o->chapters_input_file = i;
4003 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
4004 o->chapters_input_file);
4008 if (o->chapters_input_file >= 0)
4009 copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
4010 !o->metadata_chapters_manual);
4012 /* copy global metadata by default */
4013 if (!o->metadata_global_manual && nb_input_files)
4014 av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
4015 AV_DICT_DONT_OVERWRITE);
4016 if (!o->metadata_streams_manual)
4017 for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
4019 if (output_streams[i].source_index < 0) /* this is true e.g. for attached files */
4021 ist = &input_streams[output_streams[i].source_index];
4022 av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
4025 /* process manually set metadata */
4026 for (i = 0; i < o->nb_metadata; i++) {
4029 const char *stream_spec;
4030 int index = 0, j, ret;
4032 val = strchr(o->metadata[i].u.str, '=');
4034 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
4035 o->metadata[i].u.str);
4040 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
4042 for (j = 0; j < oc->nb_streams; j++) {
4043 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
4044 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
4048 printf("ret %d, stream_spec %s\n", ret, stream_spec);
4056 if (index < 0 || index >= oc->nb_chapters) {
4057 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
4060 m = &oc->chapters[index]->metadata;
4063 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
4066 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
4073 /* same option as mencoder */
4074 static int opt_pass(const char *opt, const char *arg)
4076 do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
4080 static int64_t getutime(void)
4083 struct rusage rusage;
4085 getrusage(RUSAGE_SELF, &rusage);
4086 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
4087 #elif HAVE_GETPROCESSTIMES
4089 FILETIME c, e, k, u;
4090 proc = GetCurrentProcess();
4091 GetProcessTimes(proc, &c, &e, &k, &u);
4092 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
4094 return av_gettime();
4098 static int64_t getmaxrss(void)
4100 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
4101 struct rusage rusage;
4102 getrusage(RUSAGE_SELF, &rusage);
4103 return (int64_t)rusage.ru_maxrss * 1024;
4104 #elif HAVE_GETPROCESSMEMORYINFO
4106 PROCESS_MEMORY_COUNTERS memcounters;
4107 proc = GetCurrentProcess();
4108 memcounters.cb = sizeof(memcounters);
4109 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
4110 return memcounters.PeakPagefileUsage;
4116 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
4118 return parse_option(o, "q:a", arg, options);
4121 static void show_usage(void)
4123 printf("Hyper fast Audio and Video encoder\n");
4124 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
4128 static void show_help(void)
4130 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
4131 av_log_set_callback(log_callback_help);
4133 show_help_options(options, "Main options:\n",
4134 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
4135 show_help_options(options, "\nAdvanced options:\n",
4136 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
4138 show_help_options(options, "\nVideo options:\n",
4139 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4141 show_help_options(options, "\nAdvanced Video options:\n",
4142 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4143 OPT_VIDEO | OPT_EXPERT);
4144 show_help_options(options, "\nAudio options:\n",
4145 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4147 show_help_options(options, "\nAdvanced Audio options:\n",
4148 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4149 OPT_AUDIO | OPT_EXPERT);
4150 show_help_options(options, "\nSubtitle options:\n",
4151 OPT_SUBTITLE | OPT_GRAB,
4153 show_help_options(options, "\nAudio/Video grab options:\n",
4157 show_help_children(avcodec_get_class(), flags);
4158 show_help_children(avformat_get_class(), flags);
4159 show_help_children(sws_get_class(), flags);
4162 static int opt_target(OptionsContext *o, const char *opt, const char *arg)
4164 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
4165 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
4167 if (!strncmp(arg, "pal-", 4)) {
4170 } else if (!strncmp(arg, "ntsc-", 5)) {
4173 } else if (!strncmp(arg, "film-", 5)) {
4177 /* Try to determine PAL/NTSC by peeking in the input files */
4178 if (nb_input_files) {
4180 for (j = 0; j < nb_input_files; j++) {
4181 for (i = 0; i < input_files[j].nb_streams; i++) {
4182 AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
4183 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
4185 fr = c->time_base.den * 1000 / c->time_base.num;
4189 } else if ((fr == 29970) || (fr == 23976)) {
4194 if (norm != UNKNOWN)
4198 if (norm != UNKNOWN)
4199 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
4202 if (norm == UNKNOWN) {
4203 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
4204 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
4205 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
4209 if (!strcmp(arg, "vcd")) {
4210 opt_video_codec(o, "c:v", "mpeg1video");
4211 opt_audio_codec(o, "c:a", "mp2");
4212 parse_option(o, "f", "vcd", options);
4214 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
4215 parse_option(o, "r", frame_rates[norm], options);
4216 opt_default("g", norm == PAL ? "15" : "18");
4218 opt_default("b", "1150000");
4219 opt_default("maxrate", "1150000");
4220 opt_default("minrate", "1150000");
4221 opt_default("bufsize", "327680"); // 40*1024*8;
4223 opt_default("b:a", "224000");
4224 parse_option(o, "ar", "44100", options);
4225 parse_option(o, "ac", "2", options);
4227 opt_default("packetsize", "2324");
4228 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
4230 /* We have to offset the PTS, so that it is consistent with the SCR.
4231 SCR starts at 36000, but the first two packs contain only padding
4232 and the first pack from the other stream, respectively, may also have
4233 been written before.
4234 So the real data starts at SCR 36000+3*1200. */
4235 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
4236 } else if (!strcmp(arg, "svcd")) {
4238 opt_video_codec(o, "c:v", "mpeg2video");
4239 opt_audio_codec(o, "c:a", "mp2");
4240 parse_option(o, "f", "svcd", options);
4242 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
4243 parse_option(o, "r", frame_rates[norm], options);
4244 opt_default("g", norm == PAL ? "15" : "18");
4246 opt_default("b", "2040000");
4247 opt_default("maxrate", "2516000");
4248 opt_default("minrate", "0"); // 1145000;
4249 opt_default("bufsize", "1835008"); // 224*1024*8;
4250 opt_default("flags", "+scan_offset");
4253 opt_default("b:a", "224000");
4254 parse_option(o, "ar", "44100", options);
4256 opt_default("packetsize", "2324");
4258 } else if (!strcmp(arg, "dvd")) {
4260 opt_video_codec(o, "c:v", "mpeg2video");
4261 opt_audio_codec(o, "c:a", "ac3");
4262 parse_option(o, "f", "dvd", options);
4264 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4265 parse_option(o, "r", frame_rates[norm], options);
4266 opt_default("g", norm == PAL ? "15" : "18");
4268 opt_default("b", "6000000");
4269 opt_default("maxrate", "9000000");
4270 opt_default("minrate", "0"); // 1500000;
4271 opt_default("bufsize", "1835008"); // 224*1024*8;
4273 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
4274 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
4276 opt_default("b:a", "448000");
4277 parse_option(o, "ar", "48000", options);
4279 } else if (!strncmp(arg, "dv", 2)) {
4281 parse_option(o, "f", "dv", options);
4283 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4284 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
4285 norm == PAL ? "yuv420p" : "yuv411p", options);
4286 parse_option(o, "r", frame_rates[norm], options);
4288 parse_option(o, "ar", "48000", options);
4289 parse_option(o, "ac", "2", options);
4292 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
4293 return AVERROR(EINVAL);
4298 static int opt_vstats_file(const char *opt, const char *arg)
4300 av_free (vstats_filename);
4301 vstats_filename = av_strdup (arg);
4305 static int opt_vstats(const char *opt, const char *arg)
4308 time_t today2 = time(NULL);
4309 struct tm *today = localtime(&today2);
4311 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
4313 return opt_vstats_file(opt, filename);
4316 static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
4318 return parse_option(o, "frames:v", arg, options);
4321 static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
4323 return parse_option(o, "frames:a", arg, options);
4326 static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
4328 return parse_option(o, "frames:d", arg, options);
4331 static int opt_video_tag(OptionsContext *o, const char *opt, const char *arg)
4333 return parse_option(o, "tag:v", arg, options);
4336 static int opt_audio_tag(OptionsContext *o, const char *opt, const char *arg)
4338 return parse_option(o, "tag:a", arg, options);
4341 static int opt_subtitle_tag(OptionsContext *o, const char *opt, const char *arg)
4343 return parse_option(o, "tag:s", arg, options);
4346 static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
4348 return parse_option(o, "filter:v", arg, options);
4351 static int opt_vsync(const char *opt, const char *arg)
4353 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
4354 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
4355 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
4357 if (video_sync_method == VSYNC_AUTO)
4358 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
4362 static int opt_deinterlace(const char *opt, const char *arg)
4364 av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
4369 #define OFFSET(x) offsetof(OptionsContext, x)
4370 static const OptionDef options[] = {
4372 #include "cmdutils_common_opts.h"
4373 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
4374 { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
4375 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
4376 { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4377 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4378 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
4379 { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
4380 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
4381 "outfile[,metadata]:infile[,metadata]" },
4382 { "map_chapters", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)}, "set chapters mapping", "input_file_index" },
4383 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
4384 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
4385 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
4386 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
4387 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
4388 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
4389 { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
4390 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
4391 "add timings for benchmarking" },
4392 { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
4393 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
4394 "dump each input packet" },
4395 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
4396 "when dumping packets, also dump the payload" },
4397 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
4398 { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
4399 { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
4400 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
4401 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
4402 { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)©_ts}, "copy timestamps" },
4403 { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)©_tb}, "copy input stream time base when stream copying" },
4404 { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
4405 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
4406 { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
4407 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
4408 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
4409 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
4410 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4411 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4413 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
4415 { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
4416 { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
4417 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
4420 { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
4421 { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
4422 { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
4423 { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
4424 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
4425 { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
4426 { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
4427 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
4428 { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
4429 { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
4430 "use same quantizer as source (implies VBR)" },
4431 { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
4432 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename_prefix}, "select two pass log file name prefix", "prefix" },
4433 { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
4434 "this option is deprecated, use the yadif filter instead" },
4435 { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
4436 { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
4438 { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
4440 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
4441 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
4442 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
4443 { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
4444 { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
4445 { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
4446 { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
4447 { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
4448 { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
4451 { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
4452 { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
4453 { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
4454 { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
4455 { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
4456 { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
4457 { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
4458 { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
4459 { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
4461 /* subtitle options */
4462 { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
4463 { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
4464 { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
4467 { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
4470 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
4471 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)}, "set the initial demux-decode delay", "seconds" },
4473 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
4475 /* data codec support */
4476 { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
4478 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
4482 int main(int argc, char **argv)
4484 OptionsContext o = { 0 };
4489 av_log_set_flags(AV_LOG_SKIP_REPEATED);
4490 parse_loglevel(argc, argv, options);
4492 avcodec_register_all();
4494 avdevice_register_all();
4497 avfilter_register_all();
4500 avformat_network_init();
4505 parse_options(&o, argc, argv, options, opt_output_file);
4507 if (nb_output_files <= 0 && nb_input_files == 0) {
4509 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4513 /* file converter / grab */
4514 if (nb_output_files <= 0) {
4515 fprintf(stderr, "At least one output file must be specified\n");
4519 if (nb_input_files == 0) {
4520 av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
4525 if (transcode(output_files, nb_output_files, input_files, nb_input_files) < 0)
4527 ti = getutime() - ti;
4529 int maxrss = getmaxrss() / 1024;
4530 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);