id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
9892,When ffmpeg converts one mkv file to mp4 it finds errors in it,Yuri,,"This mkv file (https://people.freebsd.org/~yuri/problematic-for-ffmpeg.mkv) has no errors according to this ffmpeg command:
{{{
$ ffmpeg -v error -i ""problematic-for-ffmpeg.mkv"" -f null -
}}}

Then the above file is converted to mp4 with this command:
{{{
$ ffmpeg -fflags +genpts -i ""problematic-for-ffmpeg.mkv"" -codec copy -r 24 ""problematic-for-ffmpeg.mkv.mp4""
}}}
to this file: https://people.freebsd.org/~yuri/problematic-for-ffmpeg.mkv.mp4

Now problematic-for-ffmpeg.mkv.mp4 fails the same check:
{{{
$ ffmpeg -v error -i ""problematic-for-ffmpeg.mkv.mp4"" -f null -
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 371 >= 371
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 382 >= 382
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1448 >= 1448
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1458 >= 1458
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 2514 >= 2514
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 2524 >= 2524
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 2535 >= 2535
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3590 >= 3590
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3601 >= 3601
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3611 >= 3611
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 4667 >= 4667
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 4677 >= 4677
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 5743 >= 5743
[null @ 0x85f883e00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 5754 >= 5754
}}}

ffmpeg-4.4.2_5
FreeBSD 13.1
",defect,open,normal,undetermined,unspecified,,,,,,0,0