[Ffmpeg-devel] [Bad news]: MPEG Seek has failed to work in FFmpeg SVN

Måns Rullgård mru
Thu Oct 26 11:32:57 CEST 2006


Steve Lhomme said:
> QuickTime wrote:
>> Dear:
>
> Hi Quicktime,
>
>> FFmpeg fails to decode video(avcodec_decode_video() never return
>> picture) after perform SEEK on mpeg file format
>>
>> It seems that the seek&decode abiliity for mpeg files have been broken
>> for 2 months(ealier than August )
>>
>> ffmpeg  -ss 00:00:10 -i test.mpg  -r 25 test.mp4
>> .....
>> Input #0, mpeg, from 'test.mpg':
>>  Duration: 00:00:24.0, start: 0.346711, bitrate: 2314 kb/s
>>  Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x288, 2000 kb/s,
>> 25.00 fps(r)
>>  Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, 192 kb/s
>> Output #0, mp4, to 'test.mp4':
>>  Stream #0.0: Video: mpeg4, yuv420p, 352x288, q=2-31, 200 kb/s, 25.00
>> fps(c)
>>  Stream #0.1: Audio: aac, 44100 Hz, stereo, 64 kb/s
>> Stream mapping:
>>  Stream #0.0 -> #0.0
>>  Stream #0.1 -> #0.1
>> frame=    0 q=0.0 Lsize=     120kB time=14.8 bitrate=  66.1kbits/s
>> video:0kB audio:114kB global headers:0kB muxing overhead 4.833664%
>> .....
>
> I've had similar problems (actually crashes) with some MPEG2 samples
> (from DVDs) for a long time. Maybe if you can provide a sample and say
> what platform you use, it could help.

Yeah, if Steve hadn't refused to provide samples, maybe this had been fixed
already.

-- 
M?ns Rullg?rd
mru at inprovide.com




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