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