ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Mon May 18 20:27:04 2015 +0200| [b0322e4a9e326f41e0214abb0083fe9eb7407460] | committer: Michael Niedermayer
ffmpeg_opt: Compensate for DTS/PTS difference in seeking when its based on DTS Fixes Ticket4554 Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b0322e4a9e326f41e0214abb0083fe9eb7407460 --- ffmpeg_opt.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c index 5731299..a8d433e 100644 --- a/ffmpeg_opt.c +++ b/ffmpeg_opt.c @@ -927,7 +927,20 @@ static int open_input_file(OptionsContext *o, const char *filename) /* if seeking requested, we execute it */ if (o->start_time != AV_NOPTS_VALUE) { - ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0); + int64_t seek_timestamp = timestamp; + + if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) { + int dts_heuristic = 0; + for (i=0; i<ic->nb_streams; i++) { + AVCodecContext *avctx = ic->streams[i]->codec; + if (avctx->has_b_frames) + dts_heuristic = 1; + } + if (dts_heuristic) { + seek_timestamp -= 3*AV_TIME_BASE / 23; + } + } + ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0); if (ret < 0) { av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", filename, (double)timestamp / AV_TIME_BASE); _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
