[FFmpeg-trac] #5847(undetermined:closed): Duration estimate and bitrate calculation wrong when file is over 4Gb
FFmpeg
trac at avcodec.org
Tue Sep 20 02:06:08 EEST 2016
#5847: Duration estimate and bitrate calculation wrong when file is over 4Gb
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Reporter: petere | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: mpegps | Resolution: duplicate
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by petere):
Yes I tested with analyzeduration and it took a long time but still did
not get the correct duration or bitrate. Upon further investigation it
looks like the timestamps reset in vob 5 so the duration is correct in
vobs 1, 2, 3, and 4 but 5 starts at 0 again. So if ffmpeg reads the
timestamps from the end of the file they will be less than the start and
the duration and bitrate will be incorrect.
I tried using the separate vobs and the concat: input but this does not
use analyzeduration so it does not find all the subtitles when I use
filter complex to burn subtitles.
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Ticket URL: <https://trac.ffmpeg.org/ticket/5847#comment:7>
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