On Fri, Nov 8, 2019 at 10:58 AM manuelyuan <manuely...@163.com> wrote: > > I have try to make fate again and it still works, I do not know why it breaks > fate-binsub-movtextenc on your side > My steps are： > 1、./configure > 2、make fate > If I'm wrong, what should I do？ > > > At 2019-11-08 02:21:16, "Michael Niedermayer" <mich...@niedermayer.cc> wrote: > >On Thu, Nov 07, 2019 at 05:55:18PM +0800, manuelyuan wrote: > >> From: Mengyang Yuan <manuely...@163.com> > >> > >> In this case, the input video is of dynamic frame rate and we don't want to > >> duplicate or drop frames, but the output video duration calculated by DTS > >> is > >> incorrect, I solved it by using PTS. > >> There are many UGC videos with dynamic frame rates, which are represented > >> by > >> PTS jumps. After transcoding with ffmpeg -vsync 0 or -vsync 2, the output > >> video duration becomes longer.By reading the code of > >> x264/encoder/encoder.c, > >> I found that in order to predict the B frame, x264 needs to ensure that > >> there > >> are enough reference frames when DTS = 0, so the DTS of these reference > >> frames > >> will subtract the cache time. However, the cache time includes the part of > >> PTS > >> jumps, which results in the abnormal small DTS. > >> > >> Signed-off-by: Mengyang Yuan <manuely...@163.com> > >> --- > >> libavformat/movenc.c | 23 ++++++++++++++--------- > >> libavformat/movenc.h | 2 ++ > >> tests/ref/fate/movenc | 20 ++++++++++---------- > >> tests/ref/lavf/mov | 4 ++-- > >> tests/ref/lavf/mp4 | 4 ++-- > >> 5 files changed, 30 insertions(+), 23 deletions(-) > > > >breaks fate-binsub-movtextenc > >... > > > >[mp4 @ 0x29327c0] Estimating the duration of the last packet in a fragment, > >consider setting the duration field in AVPacket instead. > >size= 1kB time=00:00:05.85 bitrate= 1.3kbits/s speed=6.03e+04x > >video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing > >overhead: 1809.803955% > >make: *** [fate-binsub-movtextenc] Error 1 > > > >[...] > >--
Please try: make fate-binsub-movtextenc, tks _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
