#7567: Incorrect timetamps when decoding teletext subtitles from TS file
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Reporter: ExTechOp | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: mpegts | Resolution:
dvb_teletext | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by JEEB):
To debug what the actual FFmpeg libraries return from the MPEG-TS input,
you can try the following:
{{{
ffprobe -v verbose -of json -show_programs -show_packets file.ts >
packets_and_programs.json
}}}
You can then parse this with python or so, to get the packet information
on the subtitle packets.
For the durations, it seems like ffmpeg.c doesn't handle the duration that
we utilize for "show until next packet" things. "-fix_sub_duration" should
improve this.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7567#comment:7>
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