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https://github.com/FFmpeg/FFmpeg.git
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sync output stream against any input stream (extension of map) patch by (Wolfram Gloger: wmglo, dent med uni-muenchen de)
Originally committed as revision 4308 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Wolfram Gloger
Michael Niedermayer
parent
e18c1f19f6
commit
b4a3389e70
55
ffmpeg.c
55
ffmpeg.c
@ -52,6 +52,8 @@
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typedef struct AVStreamMap {
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int file_index;
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int stream_index;
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int sync_file_index;
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int sync_stream_index;
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} AVStreamMap;
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/** select an input file for an output file */
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@ -277,6 +279,8 @@ static int pgmyuv_compatibility_hack=0;
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#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
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struct AVInputStream;
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typedef struct AVOutputStream {
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int file_index; /* file index */
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int index; /* stream index in the output file */
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@ -286,7 +290,8 @@ typedef struct AVOutputStream {
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int frame_number;
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/* input pts and corresponding output pts
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for A/V sync */
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double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
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//double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
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struct AVInputStream *sync_ist; /* input stream to sync against */
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int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
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/* video only */
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int video_resample; /* video_resample and video_crop are mutually exclusive */
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@ -456,6 +461,13 @@ static int read_ffserver_streams(AVFormatContext *s, const char *filename)
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return 0;
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}
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static double
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get_sync_ipts(const AVOutputStream *ost)
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{
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const AVInputStream *ist = ost->sync_ist;
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return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
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}
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#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
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static void do_audio_out(AVFormatContext *s,
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@ -480,7 +492,7 @@ static void do_audio_out(AVFormatContext *s,
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return; /* Should signal an error ! */
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if(audio_sync_method){
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double delta = ost->sync_ipts * enc->sample_rate - ost->sync_opts
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double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
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- fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2);
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double idelta= delta*ist->st->codec.sample_rate / enc->sample_rate;
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int byte_delta= ((int)idelta)*2*ist->st->codec.channels;
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@ -518,12 +530,12 @@ static void do_audio_out(AVFormatContext *s,
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assert(ost->audio_resample);
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if(verbose > 2)
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fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
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// fprintf(stderr, "drift:%f len:%d opts:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(ost->sync_ipts * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2));
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// fprintf(stderr, "drift:%f len:%d opts:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2));
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av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
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}
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}
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}else
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ost->sync_opts= lrintf(ost->sync_ipts * enc->sample_rate)
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ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
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- fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2); //FIXME wrong
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if (ost->audio_resample) {
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@ -709,7 +721,7 @@ static void do_video_out(AVFormatContext *s,
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if(video_sync_method){
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double vdelta;
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vdelta = ost->sync_ipts / av_q2d(enc->time_base) - ost->sync_opts;
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vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
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//FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
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if (vdelta < -1.1)
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nb_frames = 0;
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@ -726,7 +738,7 @@ static void do_video_out(AVFormatContext *s,
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fprintf(stderr, "*** %d dup!\n", nb_frames-1);
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}
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}else
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ost->sync_opts= lrintf(ost->sync_ipts / av_q2d(enc->time_base));
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ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
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nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
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if (nb_frames <= 0)
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@ -1267,7 +1279,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
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((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
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#endif
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/* set the input output pts pairs */
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ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
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//ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
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if (ost->encoding_needed) {
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switch(ost->st->codec.codec_type) {
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@ -1460,6 +1472,13 @@ static int av_encode(AVFormatContext **output_files,
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fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
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exit(1);
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}
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fi = stream_maps[i].sync_file_index;
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si = stream_maps[i].sync_stream_index;
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if (fi < 0 || fi > nb_input_files - 1 ||
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si < 0 || si > file_table[fi].nb_streams - 1) {
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fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
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exit(1);
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}
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}
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ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
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@ -1524,6 +1543,9 @@ static int av_encode(AVFormatContext **output_files,
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}
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ist = ist_table[ost->source_index];
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ist->discard = 0;
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ost->sync_ist = (nb_stream_maps > 0) ?
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ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
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stream_maps[n-1].sync_stream_index] : ist;
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}
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}
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@ -1728,11 +1750,16 @@ static int av_encode(AVFormatContext **output_files,
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fprintf(stderr, "Stream mapping:\n");
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for(i=0;i<nb_ostreams;i++) {
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ost = ost_table[i];
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fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
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fprintf(stderr, " Stream #%d.%d -> #%d.%d",
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ist_table[ost->source_index]->file_index,
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ist_table[ost->source_index]->index,
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ost->file_index,
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ost->index);
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if (ost->sync_ist != ist_table[ost->source_index])
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fprintf(stderr, " [sync #%d.%d]",
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ost->sync_ist->file_index,
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ost->sync_ist->index);
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fprintf(stderr, "\n");
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}
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}
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@ -2816,6 +2843,16 @@ static void opt_map(const char *arg)
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p++;
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m->stream_index = strtol(p, (char **)&p, 0);
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if (*p) {
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p++;
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m->sync_file_index = strtol(p, (char **)&p, 0);
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if (*p)
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p++;
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m->sync_stream_index = strtol(p, (char **)&p, 0);
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} else {
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m->sync_file_index = m->file_index;
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m->sync_stream_index = m->stream_index;
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}
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}
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static void opt_map_meta_data(const char *arg)
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@ -3929,7 +3966,7 @@ const OptionDef options[] = {
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{ "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
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{ "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
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{ "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
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{ "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
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{ "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream[:syncfile:syncstream]" },
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{ "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile:infile" },
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{ "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
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{ "fs", HAS_ARG | OPT_INT, {(void*)&limit_filesize}, "set the limit file size", "limit_size" }, //
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