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> On 4 Sep 2021, at 14:16, Mike Martin <redt...@gmail.com> wrote: > > Hi > I have come across an oddity with transcoding files to vp9/libopus from mp4 > > The resulting files have a negative starttime for audio , nearly all the > time this is -.007. > > I noticed it when I was concating files using demux concat and specifying > video duration > > This resulted in concat operation stopping at end of first file. > > Removing the duration from the conf file seems to resolve this. > Could you please give another a chance to replicate this?: Give the command line and perhaps the console output. > Seems to be just this combination of codecs > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".