Hi Emanuele,

Originally Posted by
Emanuele_Z
So, as seen as that file (
http://web.mit.edu/xiphmont/Public/t...rix-300-AQ.ogv ) is
not broken (according to Theora devs that file is made against the finalized Theora video stream format) libavcodec and the other ffmpeg libraries (I suppose) are broken in current Ubuntu packages.
I have come rather late into this thread but I suspect Reinhard is correct in that the most current libavcodec, let alone the older Ubuntu version, struggles with this particular file:
Code:
andrew@skamandros~/Desktop$ mplayer -vc fftheora matrix-300-AQ.ogv
MPlayer SVN-r30637-4.3.3 (C) 2000-2010 MPlayer Team
Playing matrix-300-AQ.ogv.
[Ogg] stream 0: video (Theora v3.2.1), -vid 0
Ogg file format detected.
VIDEO: [theo] 640x272 24bpp 24.000 fps 0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Forced video codec: fftheora
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
[theora @ 0x8954c00]Missing extradata!
Could not open codec.
VDecoder init failed :(
Cannot find codec matching selected -vo and video format 0x6F656874.
==========================================================================
Exiting... (End of file)
But the file itself is playable with external codec:
Code:
andrew@skamandros~/Desktop$ mplayer -vc theora matrix-300-AQ.ogv
MPlayer SVN-r30637-4.3.3 (C) 2000-2010 MPlayer Team
Playing matrix-300-AQ.ogv.
[Ogg] stream 0: video (Theora v3.2.1), -vid 0
Ogg file format detected.
VIDEO: [theo] 640x272 24bpp 24.000 fps 0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Forced video codec: theora
Opening video decoder: [theora] Theora/VP3
Movie-Aspect is 2.35:1 - prescaling to correct movie aspect.
VO: [xv] 640x272 => 640x272 Planar YV12
Selected video codec: [theora] vfm: theora (Theora (free, reworked VP3))
==========================================================================
Audio: no sound
Starting playback...
V: 219.2 5261/5261 4% 1% 0.0% 0 0
Exiting... (End of file)
Andrew