[theora] video quality problem, encodeing with ffmpeg2theora -p pro

[Peter Colton]

	Hello Conrad and thanks,

wget www.bissybox.com/p_preveiw.ogg

wget www.bissybox.com/p_pro.ogg 

The p_pro.ogg file play a little better with kaffeine than vlc.

I have used ffmpeg2theora-0.18.linux.bin.bz2 and had the same problem

	Regards

		Peter Colton

admin at apt-get:/mnt/data$ ffmpeg2theora -p preview 
vob-file.vob -o -p_preveiw.ogg
Input #0, mpeg, from 'CHAVEZ1-1.vob':
  Duration: 00:52:51.6, start: 0.078678, bitrate: 9328 kb/s
  Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480, 9000 kb/s, 29.97 
fps(r)
  Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, 192 kb/s
  Pixel Aspect Ratio: 1.00/1   Frame Aspect Ratio: 1.33/1
  Resize: 720x480 => 320x240
No accelerated IMDCT transform found
      0:02:00.58 audio: 75kbps video: 167kbps

admin at apt-get:/mnt/data$ ffmpeg2theora -p pro vob-file.vob -o -p_pro.ogg
Input #0, mpeg, from 'CHAVEZ1-1.vob':
  Duration: 00:52:51.6, start: 0.078678, bitrate: 9328 kb/s
  Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480, 9000 kb/s, 29.97 
fps(r)
  Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, 192 kb/s
  Pixel Aspect Ratio: 0.89/1   Frame Aspect Ratio: 1.33/1
  Resize: 720x480
No accelerated IMDCT transform found
      0:02:00.20 audio: 101kbps video: 1869kbps


On Friday 25 May 2007 04:28, you wrote:
> On 25/05/07, Peter Colton <theora at bissybox.com> wrote:
> > The problem I am having is when I encode a .vob with " ffmpeg2theora -p
> > pro ". The resulting .ogg will not play correctly with vlc or  kaffeine.
> > The vedio is jerky and the sound go out of sycro just after the start of
> > the video. The video veiwer takes up all the cpu resourses for the .ogg
> > when encoded with " ffmpeg2theora -p pro ".
>
> Hi,
>
> any chance you could post say the first few MB of such a file
> somewhere? I've got a hunch it has something to do with the way the
> audio and video tracks are interleaved and timestamped (forcing the
> players to buffer much more than necessary), but I'm not sure ...
>
> cheers,
>
> Conrad.