playing 2 files simultaneously

ciopi · 12-03-2005, 03:02 PM

Hi

I would like to be able to be able to play two files simultaneously on my Mandriva 2006 x86_64. If I do something like:

Code:

cat file1.avi > /dev/dsp

and then

Code:

file2.avi > /dev/dsp

I get:

Quote:

bash: /dev/dsp: Device or resource busy

Playing a single file works fine. However if I try to play let's say two mplayer files, the second one has no sound.
The command:

Code:

lsmod | grep snd

gives:

Quote:

snd_seq_dummy 3332 0
snd_seq_oss 31460 0
snd_seq_midi_event 6912 1 snd_seq_oss
snd_seq 50520 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 7952 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 51360 0
snd_mixer_oss 16384 1 snd_pcm_oss
snd_intel8x0 31744 1
snd_ac97_codec 88516 1 snd_intel8x0
snd_pcm 84748 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer 21000 2 snd_seq,snd_pcm
snd_page_alloc 9360 2 snd_intel8x0,snd_pcm
snd 48896 11 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd _timer
soundcore 8352 1 snd

and

Code:

ps aux | grep arts

gives :

Quote:

0:00 /usr/bin/artsd -F 10 -S 4096 -s 10 -m artsmessage -c drkonqi -l 3 -f

Also, kmix is running all the time. My goal is to be able to play flash movies in firefox and capture them with xvidcap(with sound).

I have a 64 bit system, mplayer and firefox are compiled as 32 bit. Mplayer seems to work with -ao oss.

What do you think could be wrong ? Thank you.

acid_kewpie · 12-03-2005, 03:33 PM

use alsa with the dmix plugin.

ciopi · 12-03-2005, 04:50 PM

During the boot process I see something like:

Quote:

Starting Alsa 1.0.9b

so I guess it's installed. Anyway, I typed :

Code:

urpmi alsa

which installed the multimedia kernel. I tried to follow the instructions for the dmix installation, but there is no alsa-base for Mandriva. Also, alsaplayer doesn't play any files. It only says :"No stream". It seems that dmix is only for Debian(I do have something called alsamix though). So, I'm still unable to play 2 files.

Suggestions ?

acid_kewpie · 12-03-2005, 05:01 PM

alsamix is a tool, not a plugin, and dmix is NOT part of debian, is a stanadrd alsa plugin.

ciopi · 12-04-2005, 12:43 AM

It turns out that alsa and dmix were present. I recompiled mplayer with alsa support and now I am able to play multiple mplayer files. Unfortunately, it seems that the macromedia flash sound cannot work simultaneously with the mplayer sound for instance. Also, a command like

Code:

artsdsp mozilla-firefox

doesn't work since firefox is 32 bit and my system is 64 bit and I don't see how I could install the 32 bit arts libraries(there are pages of dependencies when trying to uninstall the 64 bit libarts).