[MPlayer-users] Alsa 9, SB Live! AC3 Passthrough, filter probs.

Linux MPlayer linux_mplayer at yahoo.com
Tue May 6 08:44:46 CEST 2003

I have the latest MPlayer 0.90 just released and the latest Alsa drivers
for my Sound Blaster Live! card.

If I do *not* use the "-af-adv force=3" option to mplayer, I keep getting
this annoying "Couldn't find matching filter / ao format!" window every
time I load a DVD (and for any DVD), or when I change chapters.  The only
way to keep this window from appearing is to use the "af-adv" option (as
stated above).

By the way, the DVD's play fine (and with AC3 audio passed through to my
receiver) when I use the "force" option.  Just curious what's going on

Also, when using `gdb' to debug mplayer, it only ever shows 1 thread
running, and when I step through the code, it occassionally hops back a
few lines then proceeds to the one it should have stepped through to begin
with.  What's going on there?


Relevant mplayer info follows:

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
alsa-init: testing and bugreports are welcome. alsa-init: requested
format: 48000 Hz, 2 channels, AC3 alsa-init: soundcard set to
iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2 alsa9: 48000 Hz/2 channels/4
bpf/65536 bytes buffer/Signed 16 bit Little Endian AO: [alsa9] 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! [...]

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