[MPlayer-users] AC3 + sblive

[Maximo Ramos]

	Asunto: RE: [MPlayer-users] AC3 + sblive
	Fecha: Tue, Jan 28, 2003 at 04:23:57PM -0000

Time to reply!

Citando a  Luis.F.Correia (Luis.F.Correia at seg-social.pt):
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >> So which is it?
> >
> >I use ONLY the emu-tools from that webpage, and the OSS driver from the
> 2.4.20 kernel.
> >
> >Do I need to use the emu10k1-v0.20a.tar.bz2 from that page? isn't that
> already included in the kernel? 
> 
> 
> What makes sense is to have the emu10k1 drivers AND tools from sf.net, 
> all compiled locally using your kernel sources, since they depend A LOT on
> it.

I just finish compiling the emu10k1-v0.20a.tar.bz2 according to the docs, but
it's more of the same.

If I just load the emu10k1 without any emu-script options, all I get is noise:

==========================================================================
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: 48000->192000 (384.0 kbit)
Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
==========================================================================
==========================================================================
Trying to force video codec driver family 5 ...
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big endian AC3
AF_pre: 48000Hz 2ch AC3
Can't set audio device /dev/dsp to AC3 output, trying S16...
AO: [oss] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
[format] Sample format big endian AC3  not yet supported
[libaf] Reinitialization did not work, audio filter 'format' returned error code -2
Couldn't find matching filter / ao format!
Starting playback...
This file was encoded with DivX501 Build484
VDec: vo config request - 640 x 384 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.67:1 - prescaling to correct movie aspect.
VO: [mga] 640x384 => 640x384 Planar YV12  [fs]
vo_mga aspect(): resized to 1024x614
[mga] Using 3 buffers.
vo: uninit!   2.2 A-V:  0.006 ct:  0.027   55/ 55   8%  8%  0.5% 0 0 0%

If I use the emu-script and tune things, I get this:

==========================================================================
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: 48000->192000 (384.0 kbit)
Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
==========================================================================
==========================================================================
Trying to force video codec driver family 5 ...
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big endian AC3
AF_pre: 48000Hz 2ch AC3
AO: [oss] 48000Hz 2ch AC3 (1 bps)
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[format] Sample format big endian AC3  not yet supported
Couldn't find matching filter / ao format!
Starting playback...
This file was encoded with DivX501 Build484
VDec: vo config request - 640 x 384 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.67:1 - prescaling to correct movie aspect.
VO: [mga] 640x384 => 640x384 Planar YV12  [fs]
vo_mga aspect(): resized to 1024x614
[mga] Using 3 buffers.
vo: uninit! 129.2 A-V:  1.272 ct:  0.049  3232/3232   0%  0%  0.0% 4 0 0%

No sound at all and the video performance drops dramatically :(

again, my emu10k1.conf looks like this:

CARD_IS_5_1=no
USE_DIGITAL_OUTPUT=no
ENABLE_TONE_CONTROL=no
AC3PASSTHROUGH=yes
ENABLE_LIVEDRIVE_IR=no
INVERT_REAR=no
MULTICHANNEL=yes
ROUTE_ALL_TO_SUB=no
ANALOG_FRONT_BOOST=no
SURROUND=yes
ENABLE_CD_Spdif=no   # Volume control is 'Digital1' in aumix/gmix/kmix
ENABLE_OPTICAL_SPDIF=no # Volume control is 'Digital2'
ENABLE_LINE2_MIC2=no    # Volume control is 'Line2'
ENABLE_RCA_SPDIF=no     # Volume control is 'Digital3'
ENABLE_RCA_AUX=no       # Volume control is 'line3'

(if I use USE_DIGITAL_OUTPUT=yes then I get no sound at all) :(


-- 
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Maximo Ramos           Lost in The Land of The Morning Calm

    "I am free of prejudices. I hate everyone equally."
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