At Wed, 15 Jan 2003 11:23:58 +0100,
Guido Bakker wrote:
>
> On Wednesday 15 January 2003 10:08, you wrote:
> > Hi,
> >
> > At Wed, 15 Jan 2003 09:04:21 +0100,
> >
> > Guido Bakker wrote:
> > > hi,
> > >
> > > i'm trying to use the optical out of my terratec dmx xfire 1024 with an
> > > ac3 stream.
> > >
> > > root@thebox:~/alsa/alsa-tools-0.9.0rc6/ac3dec# ./ac3dec -C test.ac3
> > > Using PCM device 'iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2'
> > > ALSA lib pcm.c:1719:(snd_pcm_open_conf) Invalid type for PCM
> > > iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2 definition (id: iec958,
> > > value: cards.pcm.iec958)
> > > snd_pcm_open: Invalid argument
> > > Output open failed
> > >
> > > i'm getting this error, any ideas?
> > >
> > > i'm running alsa rc6.
> >
> > try the cvs version.
> > should have been already fixed.
>
> I'm now stuck to 2ch ac3 only.
>
> Forced audio codec: hwac3
> Opening audio decoder: [hwac3] AC3 pass-through SP/DIF
> No accelerated IMDCT transform found
> AUDIO: 48000 Hz, 2 ch, 16 bit (0x400), ratio: 56000->192000 (448.0 kbit)
> Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
>
> alsa-init: testing and bugreports are welcome.
> alsa-init: requested format: 48000 Hz, 2 channels, AC3
> alsa-init: soundcard set to iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2
> alsa9: 48000 Hz/2 channels/4 bpf/32768 bytes buffer/Signed 16 bit Little
> Endian
> AO: [alsa9] 48000Hz 2ch AC3
> Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
> [format] Sample format big endian AC3 not yet supported
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
i guess the file is corrupt or you forgot byte-swapping.
Takashi
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