Application provided invalid, non monotonically increasing dts to muxer (TS)

[keynet]

Summary of the bug: Transcoding a TS made with current VDR (2.2.0).
Program exits 45s into recording with error
Application provided invalid, non monotonically increasing dts to muxer

Accompanied by error av_interleaved_write_frame(): Invalid argument

Subtitle stream is the cause.
Omitting the subs stream and the issue does not occur.

In fact one doesn't need to even transcode, just trying to copy the streams causes the same issue.

Using option -fix_sub_duration doesn't help

May be similar to tickets #1154, #3658

How to reproduce:

% ffmpeg -y -report -v 9 -loglevel 99 -i "00001.ts" -map 0:0 -map 0:1 -map 0:2 -map 0:3 -c:v copy  -c:a:0 copy -c:a:1 copy -c:s copy  "file-1.ts"
ffmpeg version N-80225-g1729387
built on 07-Jun-2016

Log attached, first 50s of video uploaded under this ticket number

[keynet]

ffmpeg log report

[Carl Eugen Hoyos]

How was the recording made and which media player shows the subtitles in the recording you uploaded?

[keynet]

Recording on VDR 2.2.0 (current) from live TV

Plays on ffplay no problems (with subtitles).

• no errors produced as it goes through the problem section

Plays on VLC no problems, but doesn't show the subs (stream not listed)

[Carl Eugen Hoyos]

Reproducible with the following simplified command line:

$ ffmpeg -i start-ticket\ 5617_cut.ts -scodec copy -mbd 2 -q:v 2 out.ts

[keynet]

In my testing the -fix_sub_duration option only works if it's immediately before a separate subs stream. If the streams are combined in a container (like here in a .ts) it seems the option is ignored. This is perhaps why the option isn't working around the non-monotonic DTS