[LAD] viewing lac videos

Robin Gareus robin at gareus.org
Tue Apr 28 22:40:37 UTC 2009

Hash: SHA1

Fons Adriaensen wrote:
> Hello all,
> I'm having some problems viewing the LAC videos.
> Totem (launched by Firefox) produces perfect image
> but no sound (this may be related to my previous
> post about alsa card order). Downloading the file
> and trying mplayer (compiled today) I get
>   video: no video
> and no sound either.
> All this on a fresh F10 install wich probably
> needs some more tuning/pruning. 

It very much looks like it.

Here (on Debian) they play just fine; both inside firefox and the
downloaded file with mplayer.

The totem /no-sound/ issue may be because you did not install the
"gstreamer-vorbis" package or it's because of your audio-setup; check
with `gstreamer-properties` to make a test-sound.

..and maybe you did compile mplayer without ogg/theora/vorbis support?!
(install libtheora-dev and libvorbis-dev before compiling it, or simply
use a binary package for mplayer)

try `mplayer -ao jack xxx.ogv`

It should print sth. like this:

Ogg stream 0 is of an unknown type
[Ogg] stream 1: video (Theora v3.2.1), -vid 0
[Ogg] stream 2: audio (Vorbis), -aid 0
Ogg file format detected.
VIDEO:  [theo]  726x544  24bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
Opening video decoder: [theora] Theora/VP3
VDec: vo config request - 726 x 544 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 726x544 => 726x544 Planar YV12
Selected video codec: [theora] vfm: theora (Theora (free, reworked VP3))
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis)
AO: [jack] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...

Version: GnuPG v1.4.9 (GNU/Linux)


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