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Re: Remux problem

by Michel Bardiaux-2 :: Rate this Message:

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Víctor Paesa wrote:

> Hi,
>
> Michel Bardiaux said:
>> ffmpeg -i bad_remux.mpg -acodec copy -vcodec copy -b 1200k remuxed.mpg
>> FFmpeg version SVN-r11649, Copyright (c) 2000-2008 Fabrice Bellard, et
>> al.
>>    configuration: --enable-libmp3lame --enable-pp --enable-gpl
>>    libavutil version: 49.6.0
>>    libavcodec version: 51.50.0
>>    libavformat version: 52.6.0
>>    libavdevice version: 52.0.0
>>    built on Jan 28 2008 15:43:19, gcc: 4.1.2 20061115 (prerelease)
>> (Debian 4.1.1-21)
>> Input #0, mpeg, from 'bad_remux.mpg':
>>    Duration: 00:00:15.8, start: 0.500000, bitrate: 1339 kb/s
>>      Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x288 [PAR 1:1
>> DAR 11:9], 104857 kb/s, 25.00 tb(r)
>>      Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, mono, 32 kb/s
>> Output #0, mpeg, to 'remuxed.mpg':
>>      Stream #0.0: Video: mpeg1video, yuv420p, 352x288 [PAR 0:1 DAR 0:1],
>>
>> q=2-31, 104857 kb/s, 25.00 tb(c)
>>      Stream #0.1: Audio: mp2, 48000 Hz, mono, 32 kb/s
>> Stream mapping:
>>    Stream #0.0 -> #0.0
>>    Stream #0.1 -> #0.1
>> Press [q] to stop encoding
>> error, non monotone timestamps 442800 >= 442800
>> av_interleaved_write_frame(): Error while opening file
>>
>> Given that such a command is supposed to be *the* way to fix bad
>> timestamps, I am "in a maze of little tunnels, all the same". Help
>> please?
>>
>> (I am sure this worked at some point in the past, and I will try to find
>>  the breakup in svn, but this is kind of an emergency)
>
> Maybe add "-fflags genpts" ?

No, same output as above.

I have found that the change that began the breakage was r10891 "Check
av_interleaved_write_frame return", the change itself seems perfectly
valid to me. So I will check why genpts does not do what it should. But
not right now, I am moving all my bookmarks and search results to
another PC, which means better not use my web search tools for a few
hours. Anyone can give me a hint?

Greetings,
--
Michel Bardiaux
R&D Director
T +32 [0] 2 790 29 41
F +32 [0] 2 790 29 02
E mailto:mbardiaux@...

Mediaxim NV/SA
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