On Sat, 6 Sep 2003, Vedran Rodic wrote:
> Hi.
>
> I'm having trouble with latest ALSA and oss emulation. I'm using dosemu to
> play some DOS games and I've noticed that sound in DOS apps stops playing
> after short time (depending on the app).
>
>
> I'm regulary updating both alsa and dosemu, I suspected dosemu first, since
> I had no problems whatsoever with alsa oss emulation.
>
> It turned out that this was not dosemu problem, but alsa oss emulation problem.
> I've tracked it down to a change in alsa-kernel/core/oss/pcm_oss.c.
> The change is here:
> http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/alsa/alsa-kernel/core/oss/pcm_oss.c.diff?r1=1.40&r2=1.41
Please, try patch bellow.
Jaroslav
Index: pcm_oss.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/core/oss/pcm_oss.c,v
retrieving revision 1.47
diff -u -r1.47 pcm_oss.c
--- pcm_oss.c 3 Sep 2003 13:43:41 -0000 1.47
+++ pcm_oss.c 8 Sep 2003 07:12:58 -0000
@@ -1394,6 +1394,10 @@
}
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DELAY, &delay);
+ if (err == -EPIPE || err == -ESTRPIPE) {
+ err = 0;
+ delay = 0;
+ }
} else {
err = snd_pcm_oss_capture_position_fixup(substream, &delay);
}
@@ -1454,7 +1458,12 @@
} else {
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DELAY,
&avail);
- avail = runtime->buffer_size - avail;
+ if (err == -EPIPE || err == -ESTRPIPE) {
+ avail = runtime->buffer_size;
+ err = 0;
+ } else {
+ avail = runtime->buffer_size - avail;
+ }
} else {
err = snd_pcm_oss_capture_position_fixup(substream, &avail);
}
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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