[MPlayer-users] Codec trouble: vorbis.acm

[andrew]

Hi,

The following file:

ftp://streams.videolan.org/issues/vorbis3+/vorbis3plus_sample.avi

plays with the vorbis.acm packaged with the latest MPlayer codecs:

http://samples.mplayerhq.hu/drivers32/newcodecpack/vorbis.acm

but with terrible distortion:

+--------
andrew at skamandros~/source/mplayer_build/codecs$ mplayer vorbis3plus_sample.avi 
MPlayer SVN-r33083-4.5.2 (C) 2000-2011 MPlayer Team

Playing vorbis3plus_sample.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [XVID]  640x352  12bpp  25.000 fps  414.0 kbps (50.5 kbyte/s)
Clip info:
 Software: VirtualDubMod 1.5.10.1 (build 2366/release)
Load subtitles in ./
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
==========================================================================
Opening audio decoder: [acm] Win32/ACM decoders
Loading codec DLL: 'vorbis.acm'
Loaded DLL driver vorbis.acm at 10000000
Warning! ACM codec reports srcsize=0
AUDIO: 48000 Hz, 2 ch, s16le, 450.0 kbit/29.30% (ratio: 56250->192000)
Selected audio codec: [vorbisacm] afm: acm (OggVorbis ACM)
==========================================================================
AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Movie-Aspect is 1.82:1 - prescaling to correct movie aspect.
VO: [xv] 640x352 => 640x352 Planar YV12 
A:  27.9 V:  27.9 A-V: -0.001 ct:  2.761 698/698  3%  0%  2.5% 0 0 


Exiting... (End of file)
+--------

but plays perfectly well with the larger vorbis.acm found here:

http://svn.xiph.org/tags/vorbis/vorbisacm_20020708/vorbis.acm

with absolutely no disortion:

+---------
MPlayer SVN-r33083-4.5.2 (C) 2000-2011 MPlayer Team

Playing vorbis3plus_sample.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [XVID]  640x352  12bpp  25.000 fps  414.0 kbps (50.5 kbyte/s)
Clip info:
 Software: VirtualDubMod 1.5.10.1 (build 2366/release)
Load subtitles in ./
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
==========================================================================
Opening audio decoder: [acm] Win32/ACM decoders
Loading codec DLL: 'vorbis.acm'
Loaded DLL driver vorbis.acm at 10000000
Warning! ACM codec reports srcsize=0
AUDIO: 48000 Hz, 2 ch, s16le, 450.0 kbit/29.30% (ratio: 56250->192000)
Selected audio codec: [vorbisacm] afm: acm (OggVorbis ACM)
==========================================================================
AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Movie-Aspect is 1.82:1 - prescaling to correct movie aspect.
VO: [xv] 640x352 => 640x352 Planar YV12 
A:  27.8 V:  27.9 A-V: -0.057 ct:  0.113 698/698  3%  0%  2.0% 0 0 


Exiting... (End of file)
+---------

I realise that such files are rare as hen's teeth but I and several
others on this thread:

http://ubuntuforums.org/showthread.php?p=10583426

were puzzled by the discrepency in the 2 different vorbis.acm files?

Thanks for your trouble,

Andrew
-- 
Do you think that's air you're breathing?