[gentoo-user-br] Vídeo mp4 sem som

[Fernando Garrido Vaz]

Alguém tem alguma experiência com vídeo em formato mp4?  Já tentei mplayer, 
xine-ui, vlc, e em todos eles não sai som...  Já tentei de tudo, inclusive tô 
com a versão ~x86 da faad2, e não resolveu.  Rodando pelo mplayer (console), 
o erro que dá é esse:

==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 12237->176400 (97.9 kbit)
Selected audio codec: [faad] afm:faad (FAAD AAC (MPEG2/MPEG4 Audio) decoder)
==========================================================================
vo: X11 running at 1024x768 with depth 24 and 32 bpp (":0" => local display)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
Checking audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/2ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 44100 hz, little endian signed int
AF_pre: 44100Hz 2ch Signed 16-bit (Little-Endian)
alsa-init: got device=0, subdevice=0
alsa-init: 1 soundcard found, using: default
alsa: 44100 Hz/2 channels/4 bpf/60208 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/2ch/16bit...
Starting playback...
FAAD: Failed to decode frame: Unexpected channel configuration change
FAAD: Failed to decode frame: Unexpected channel configuration change
FAAD: Failed to decode frame: Unexpected channel configuration change


Tentei com oss, não ajudou.  Alguma dica?

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