Re: [Alsa-user] SPDIF AC3 Passthrough please help before I need the padded wagon!!!

2007-10-22 Thread Clemens Ladisch 
Another Sillyname wrote:
 I have three seperate machines outputting to a Sony STR-DB940 AC3 Amp
 via SPDIF (two optical one RCA).
 
 I can get all of them to output as standard ALSA devices from Fedora 7
 setups and no specific  asound.conf or asound.rc files however I
 cannot for the life of me get AC3 passthrough to work on any of them
 (using either VLC or MPLAYER).
 
 card 0: CK804 [NVidia CK804], device 0: Intel ICH [NVidia CK804]

AC3 passthrough is not supported on nVidia AC'97 controllers if the
SPDIF output is not handled by the AC'97 codec.  The controller chip
probably supports it, but we have no documentation.

What hardware are you using on the other two machines?


Regards,
Clemens

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Re: [Alsa-user] SPDIF AC3 Passthrough please help before I need the padded wagon!!!

2007-10-22 Thread Clemens Ladisch 
Another Sillyname wrote:
 Thanks for the response, so does that mean there is a way to get AC3
 supported on the chipset using a different setup/configuration?

No.

 card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 
 [Intel 82801DB-ICH4 - IEC958]
 card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]

These should work.

What version of mplayer are you using?


Regards,
Clemens

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[Alsa-user] SPDIF AC3 Passthrough please help before I need the padded wagon!!!

2007-10-02 Thread Another Sillyname 
I have three seperate machines outputting to a Sony STR-DB940 AC3 Amp
via SPDIF (two optical one RCA).

I can get all of them to output as standard ALSA devices from Fedora 7
setups and no specific  asound.conf or asound.rc files however I
cannot for the life of me get AC3 passthrough to work on any of them
(using either VLC or MPLAYER).

Here's one of the setups

aplay -l

 List of PLAYBACK Hardware Devices 
card 0: CK804 [NVidia CK804], device 0: Intel ICH [NVidia CK804]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: CK804 [NVidia CK804], device 2: Intel ICH - IEC958 [NVidia
CK804 - IEC958]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


aplay -L

default:CARD=CK804
NVidia CK804, NVidia CK804
Default Audio Device
front:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804
Front speakers
surround40:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804
4.0 Surround output to Front and Rear speakers
surround41:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
null
Discard all samples (playback) or generate zero samples (capture)


Now I understand that the Surround stuff in aplay -L refers to multi
connected surround and not over spdif however I would expect either a
spdif or iec958 device there shouldn't I?

If I try to output from mplayer on a file I know has AC3 using the command line

mplayer -ac hwac3 ac3test.avi

this is what I get.but no sound from the amp.

MPlayer dev-SVN-rUNKNOWN-4.1.2 (C) 2000-2007 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3200+ (Family: 15, Model: 31, Stepping: 0)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Playing ac3test.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [XVID]  576x304  24bpp  25.000 fps  1141.0 kbps (139.3 kbyte/s)
Clip info:
 Software: VirtualDubMod 1.4.13
==
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==
==
Forced audio codec: hwac3
Opening audio decoder: [hwac3] AC3/DTS pass-through S/PDIF
hwac3: switched to AC3, 384000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, ac3, 384.0 kbit/25.00% (ratio: 48000-192000)
Selected audio codec: [hwac3] afm: hwac3 (AC3 through S/PDIF)
==
AO: [alsa] 48000Hz 2ch ac3 (1 bytes per sample)
Starting playback...
VDec: vo config request - 576 x 304 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.89:1 - prescaling to correct movie aspect.
VO: [xv] 576x304 = 576x304 Planar YV12

using just mplayer and the filename I get normal (2 channel) sound
from the amp and this...

mplayer ac3test.avi

MPlayer dev-SVN-rUNKNOWN-4.1.2 (C) 2000-2007 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3200+ (Family: 15, Model: 31, Stepping: 0)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Playing ac3test.avi.

AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [XVID]  576x304  24bpp  25.000 fps  1141.0 kbps (139.3 kbyte/s)
Clip info:
 Software: VirtualDubMod 1.4.13
==
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==
==
Opening audio decoder: [liba52] AC3 decoding with liba52
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000-192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 576 x 304 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.89:1 - prescaling to correct movie aspect.
VO: [xv] 576x304 = 576x304 Planar YV12

Any ideas anyone please?

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