[mythtv] #5900 and AAC 5.1 audio

[Markus Schulz]

Am Sunday 31 May 2009 schrieb Jean-Yves Avenard:
> Hi
>
> 2009/5/31 Markus Schulz <msc at antzsystem.de>:
> > switching to dd5.1 track: (only silence, no dd5.1-signal @receiver)
>
> If you disable the software mixer ; do you have sound in that case?

no sound, except for 2ch-ac3.

If i disable upmixer _and_ softvolume (only ac3 passthru was enabled) i 
got no sound for all ac3 audio:

2009-05-31 15:31:49.647 AFD: Opened codec 0xc3939a0, id(H264_VDPAU) 
type(Video)                                       
2009-05-31 15:31:49.647 AFD: codec AC3 has 2 channels
2009-05-31 15:31:49.647 AFD: Opened codec 0xab300a0, id(AC3) type(Audio)
2009-05-31 15:31:49.647 AFD: Audio Track #1 is A/V stream #1 and has 2 
channels in the English language(6647399).
2009-05-31 15:31:49.648 AFD: codec AC3 has 6 channels
2009-05-31 15:31:49.648 AFD: Opened codec 0xab305d0, id(AC3) type(Audio)
2009-05-31 15:31:49.648 AFD: Audio Track #2 is A/V stream #2 and has 6 
channels in the German language(6776178).
2009-05-31 15:31:49.648 AFD: Trying to select audio track (w/lang)
2009-05-31 15:31:49.648 AFD: Selected track 2: German AC3 5.1ch (A/V 
Stream #2)
2009-05-31 15:31:49.648 AFD: Initializing audio parms from audio track 
#2
2009-05-31 15:31:49.648 AFD: Audio format changed digital passthrough 
id( AC3) 48000Hz  2ch  16bps pt
                        from id(NONE)    -1Hz -1ch   0bps    ; id(NONE)    
-1Hz -1ch   0bps
                        to   id( AC3) 48000Hz  6ch  16bps pt ; id( AC3) 
48000Hz  6ch  16bps pt
2009-05-31 15:31:49.653 AO: Needs upmix
2009-05-31 15:31:49.653 AO: Killing AudioOutputDSP
2009-05-31 15:31:49.653 Opening audio device 'default'. ch 6(2) sr 48000
2009-05-31 15:31:49.653 Opening ALSA audio device 'iec958:{ AES0 0x02 
}'.
2009-05-31 15:31:49.655 in SetParameters(format=2, channels=6, 
rate=48000, buffer_time=400000, period_time=25000)
2009-05-31 15:31:49.655 AudioOutput Error: Channels count (6) not 
available: Das Argument ist ungültig
2009-05-31 15:31:49.655 AudioOutput Error: Unable to set ALSA parameters
2009-05-31 15:31:49.656 AO, ERROR: Aborting reconfigure
2009-05-31 15:31:49.656 Aborting reconfigure
2009-05-31 15:31:49.656 NVP(1): Disabling Audio, reason is: Unable to 
set ALSA parameters
2009-05-31 15:31:49.656 AO: Killing AudioOutputDSP

msc