[Ffmpeg-devel] matroska to vob frame skipping issue.

[Chris]

> > Thanks for the sample.
> > This issue is now fixed.
> >
> > Aurel
> 
> 
> Aurel,
> 
> Excellent job. Works perfectly on all my samples now. Many thanks.
> 
> There is another issue (now?) with that planet earth sample (and others).
> If
> you pass-through the audio the file size is constantly at 76KB throughout
> the encoding process. Then at the end there are loads of "buffer
> underflows", the resultant mpg does not play:
> 
> ffmpeg.exe -y -i planet.earth.mkv -target dvd -acodec copy
> planet.earth.mpg
> FFmpeg version SVN-r7159, Copyright (c) 2000-2006 Fabrice Bellard, et al.
>   configuration:  --enable-a52 --enable-gpl --enable-memalign-hack
> --disable-debug
>   libavutil version: 49.1.0
>   libavcodec version: 51.25.0
>   libavformat version: 51.6.0
>   built on Nov 29 2006 10:08:22, gcc: 3.4.4 (mingw special)
> [matroska @ 00709434]Ignoring seekhead entry for ID=0x1549a966
> [matroska @ 00709434]Ignoring seekhead entry for ID=0x1654ae6b
> [matroska @ 00709434]Ignoring seekhead entry for ID=0x114d9b74
> [matroska @ 00709434]Unknown entry 0x73a4 in info header
> [matroska @ 00709434]Unknown track header entry 0x55aa - ignoring
> [matroska @ 00709434]Unknown track header entry 0x23314f - ignoring
> [matroska @ 00709434]Unknown track header entry 0x55ee - ignoring
> [matroska @ 00709434]Unknown track header entry 0xaa - ignoring
> [matroska @ 00709434]Unknown track header entry 0x55aa - ignoring
> [matroska @ 00709434]Unknown track header entry 0x23314f - ignoring
> [matroska @ 00709434]Unknown track header entry 0x55ee - ignoring
> [matroska @ 00709434]Unknown track header entry 0xaa - ignoring
> Input #0, matroska, from 'planet.earth.mkv':
>   Duration: 00:01:02.3, bitrate: N/A
>   Stream #0.0: Audio: ac3, 48000 Hz, 5:1
>   Stream #0.1: Video: h264, yuv420p, 1280x720, 25.00 fps(r)
> Assuming PAL for target.
> Output #0, dvd, to 'planet.earth.mpg':
>   Stream #0.0: Video: mpeg2video, yuv420p, 720x576, q=2-31, 6000 kb/s,
> 25.00
> fps(c)
>   Stream #0.1: Audio: ac3, 48000 Hz, 5:1
> Stream mapping:
>   Stream #0.1 -> #0.0
>   Stream #0.0 -> #0.1
> Press [q] to stop encoding
> [dvd @ 00709434]buffer underflowB time=61.5 bitrate=  10.1kbits/s
> [dvd @ 00709434]buffer underflow
> [dvd @ 00709434]buffer underflow
> 
> [...]
> 
> [dvd @ 00709434]buffer underflow
> [dvd @ 00709434]buffer underflow
> [dvd @ 00709434]buffer underflow
> [dvd @ 00709434]buffer underflow
> frame= 1541 q=2.0 Lsize=   38154kB time=61.6 bitrate=5074.0kbits/s
> video:34731kB audio:2919kB global headers:0kB muxing overhead 1.338196%
> 
> 
> I am not sure whether this was an issue before or is a result of the
> recent
> update.
> 
> Regards,
> 
> Chris
> 


Aurel,

Any thoughts on this?

TIA

Chris