gstreamer0.10-theora and libtheora0 packages from maemo.org repository.
$ mplayer movie.ogv MPlayer SVN-r30099-4.2.1 (C) 2000-2009 MPlayer Team Playing movie.ogv. Ogg stream 0 is of an unknown type Ogg stream 1 is of an unknown type [Ogg] stream 2: audio (Vorbis), -aid 0 Ogg file format detected. ========================================================================== Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders AUDIO: 48000 Hz, 2 ch, s16le, 80.0 kbit/5.21% (ratio: 10000->192000) Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis) ========================================================================== [AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample) Video: no video Starting playback... A: 2.0 (02.0) of 7037.6 ( 1:57:17.5) 3.2% MPlayer interrupted by signal 2 in module: play_audio A: 2.3 (02.3) of 7037.6 ( 1:57:17.5) 3.2% Exiting... (Quit)