-----Original Message-----
From: Takashi Iwai <tiwai@xxxxxxx>
To: Krivenok Dmitry <_asr_@xxxxxxxx>
Date: Thu, 03 Aug 2006 16:41:46 +0200
Subject: Re: Re[8]: Virtual sound card
>
> At Thu, 03 Aug 2006 18:36:32 +0400,
> Krivenok Dmitry wrote:
> >
> > > > This is mplayer's log:
> > > > krivenok-home ~ # strace mplayer Uno_momento.mp3 2>log2
> > > > krivenok-home ~ # grep snd log2
> > > > open("/dev/snd/controlC0", O_RDWR) = 5
> > > > open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK) = 6
> > > >
> > > > OK :)
> > > >
> > > > P.S.
> > > > Is there a way to use separate files for in/out?
> > >
> > > You can define different PCMs for playback and capture and bind them
> > > using asym plugin, such as:
> > >
> > > pcm.!hw {
> > > type asym
> > > playback.pcm {
> > > type file
> > > slave.pcm {
> > > type hw
> > > card 0
> > > }
> > > file "foo.out"
> > > }
> > > capture.pcm {
> > > type file
> > > slave.pcm {
> > > type hw
> > > card 0
> > > }
> > > file "foo.in"
> > > }
> > > }
> > >
> >
> > It works with skype and mplayer, but aplay crashs (SegFault):
>
> Ouch. Could you get a backtrace via gdb?
>
More detailed output:
krivenok-home aplay # gdb ./aplay
GNU gdb 6.4
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-pc-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) r /tmp/12345
Starting program: /tmp/alsa-utils-1.0.11/aplay/aplay /tmp/12345
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 28838)]
Playing WAVE '/tmp/12345' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
Warning: rate is not accurate (requested = 44100Hz, got = 48000Hz)
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 28838)]
0x401f8533 in strchr () from /lib/libc.so.6
(gdb) bt
#0 0x401f8533 in strchr () from /lib/libc.so.6
#1 0x0804cc5b in set_params () at aplay.c:921
#2 0x0804ef61 in playback_go (fd=8, loaded=0, count=2015232, rtype=2, name=0xbfb27a43 "/tmp/12345") at aplay.c:1954
#3 0x0804f1f0 in playback (name=0xbfb27a43 "/tmp/12345") at aplay.c:2027
#4 0x0804b8bf in main (argc=2, argv=0xbfb25bf4) at aplay.c:598
(gdb)
>
> Takashi
>
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