Am 2014-10-21 08:31, schrieb Clemens Ladisch:
> Rene Bartsch wrote:
>> I'm using a HDMI-Switch with integrated Audio-Extractor which is
>> connected to my surround-system via TOS-Link. Unfortunately TOS-Link
>> cannot handle multi-channel PCM. So I try to get the a52-plugin
>> working
>> with HDMI.
>>
>> It already works with the TOS-Link-port on my notebook:
>>
>> pcm.a52 {
>> @args [CARD]
>> @args.CARD {
>> type string
>> }
>> type rate
>> slave {
>> pcm {
>> type a52
>> bitrate 448
>> channels 6
>> card $CARD
>> # device 3
>> }
>> rate 48000 #required somehow, otherwise nothing happens in
>> PulseAudio
>> }
>> }
>>
>>
>> renne@renne:~$ aplay -l
>> **** Liste der Hardware-Geräte (PLAYBACK) ****
>> Karte 0: Intel [HDA Intel], Gerät 0: CX20561 Analog [CX20561 Analog]
>> Sub-Geräte: 1/1
>> Sub-Gerät #0: subdevice #0
>> Karte 0: Intel [HDA Intel], Gerät 1: CX20561 Digital [CX20561 Digital]
>> Sub-Geräte: 1/1
>> Sub-Gerät #0: subdevice #0
>> Karte 0: Intel [HDA Intel], Gerät 3: HDMI 0 [HDMI 0]
>> Sub-Geräte: 1/1
>> Sub-Gerät #0: subdevice #0
>>
>>
>>
>> When I try to add a device stanza to use the HDMI-port
>
> You mean the "device 3"?
>
>> Pulseaudio doesn't find a AC3 device/profile.
>
> I don't know what PulseAudio requires for that; try asking on the
> PulseAudio list.
Meanwhile I tried ALSA directly by using "mplayer -ao alsa:device=hw=0.3
-ac hwac3 <AC3>-file", which works fine (passthrough). When I add the
"device 3"-stanza for HDMI, there is no sound.
--------------------------------------------------------------------------------
pcm.a52hdmi {
@args [CARD]
@args.CARD {
type string
}
type rate
slave {
pcm {
type a52
bitrate 448
channels 6
card $CARD
device 3
}
rate 48000 #required somehow, otherwise nothing happens in
PulseAudio
}
}
----------------------------------------------------------------------------------
mplayer -channels 6 -ao alsa:device=a52hdmi
/media/f7490/Audio/a52/Bjorn_Lynne-Joolis-Song-surround.ac3
MPlayer 1.1-4.8 (C) 2000-2012 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.
Playing /media/f7490/Audio/a52/Bjorn_Lynne-Joolis-Song-surround.ac3.
libavformat version 54.20.4 (external)
Mismatching header version 54.20.3
libavformat file format detected.
[ac3 @ 0x7f090bc24600]max_analyze_duration reached
[ac3 @ 0x7f090bc24600]Estimating duration from bitrate, this may be
inaccurate
[lavf] stream 0: audio (ac3), -aid 0
Load subtitles in /media/f7490/Audio/a52/
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 54.35.0 (external)
AUDIO: 48000 Hz, 6 ch, floatle, 448.0 kbit/4.86% (ratio: 56000->1152000)
Selected audio codec: [ffac3] afm: ffmpeg (FFmpeg AC-3)
==========================================================================
[AO_ALSA] alsa-lib: pcm_a52.c:843:(_snd_pcm_a52_open) Unknown field
device
[AO_ALSA] Playback open error: Invalid argument
Failed to initialize audio driver 'alsa:device=a52hdmi'
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video
Exiting... (End of file)
------------------------------------------------------------------------------------
--
Best regards,
Rene Bartsch, B. Sc. Informatics
------------------------------------------------------------------------------
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