Hi!

I am  - ehh - I was a silent reader of avifile mailinglist via archive.
Now I have a problem and maybe someone (Kabi) can help me :-)

I'm playing with DivX and ac3 audio stream on a 5.1-amplifier. I use
- avifile-0.6 CVS (BTW: it's time for a stable release)
- SB life! 5.1
- OpenSource OSS emu10k1 driver
- ONKYO TX-DS494 AV receiver
Receiver and soundcard are digital connected. I use to demo files:
- thx.ac3; ac3 rip of a THX trailer)
 -thx.avi; transcoded thx.ac3 with video stream from /dev/zero and 
original ac3 audio stream (transcode -i thx.ac3 -A -n 0x2000 -y divx4 -o 
thx.avi)

My interest is the libac3pass-plugin. As far as I understand this plugin 
should pass all ac3 data direct to the emu10k1 - no need for a software 
downmixing. But the current emu10k1 sounddriver has another interesing 
feature: direct ac3 data passthru to the receiver (ac3 data are 
auto-detected)!
If I start "play-ac3 thx.ac3" my receiver shows "Dolby Digital" in the 
display and I got perfect sound. If I use "aviplay thx.avi" with 
libac3pass the sound is broken. If I use libac3 sound is much lower and 
its not 5.1. My receiver says "Digital PCM" I also testet mplayer with 
"-ac hwac3" option which seems to be same code. Here the sound is the same 
as with libac3.

I would like to fix libac3pass in a way of passthru all ac3 data from the 
stream to the receiver in the same way "play-ac3" works. I have the 
hardware and basic programming skills but I dont know anything about 
avifile plugin structure. Anybody? :-)

Bye

  Thorsten

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