[MPlayer-users] stupid question - "spdif" AND "hw=2"

[Andrew]

On Thu, Oct 16, 2008 at 09:14:03PM +0200, ACS wrote:
> 
> > 1) "ao=alsa:device=plughw=02.01" in my config files doesn't seem to have 
> > any effect. with "-ao alsa:device=spdif " I still get:
> >
> > [AO_ALSA] alsa-lib: confmisc.c:1286:(snd_func_refer) Unable to find 
> > definition 'cards.CX88x.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'

> Seems like 1st card gets ID=0, and second will get ID=1. Then you should try 
> ao=alsa:device=plughw=01.01

No, it seems "02.01" is what works WITHOUT any (explicitly stated) audio errors.

"1.1", "2.2", and anything other than "02.01" (or "2.1") produces explicit errors ("no sound", "cannot find file", etc)

But then, even with "hw=2.1" (without the explicit error messages), I only get two channels, not six! 

(and I know for sure the content is 6 ch, as mplayer itself acknowledges in the "AUDIO: ..." line)

please help.  Some actual output below:

tia
andrew

--------------

mplayer -ao alsa:device=hw=2.1 -channels 6  dvd://

<snippet>
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
Using MMX optimized resampler
AUDIO: 48000 Hz, 6 ch, s16le, 384.0 kbit/8.33% (ratio: 48000->576000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 704 x 480 (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] 704x480 => 704x528 Planar YV12 
[mpeg2video @ 0x8711590]ac-tex damaged at 0 8
[mpeg2video @ 0x8711590]Warning MVs not available
</snippet>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

mplayer -ao alsa:device=hw=2.2 -channels 6  dvd://

<snippet>
==========================================================================
[AO_ALSA] alsa-lib: pcm_hw.c:1132:(snd_pcm_hw_open) open /dev/snd/pcmC2D2p failed: No such file or directory
[AO_ALSA] Playback open error: No such file or directory
Could not open/initialize audio device -> no sound.
Audio: no sound
</snippet>