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

[Steve Lhomme]

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.

Steve