add proper volume clipping support for OSS devices

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@665 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-04-08 00:19:29 +00:00
parent b4a547419c
commit 025228f957

View file

@ -190,11 +190,16 @@ static int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvo
static int pa_oss_set_volume(int fd, int mixer, const pa_sample_spec *ss, const pa_cvolume *volume) {
char cv[PA_CVOLUME_SNPRINT_MAX];
unsigned vol;
pa_volume_t l, r;
vol = (volume->values[0]*100)/PA_VOLUME_NORM;
l = volume->values[0] > PA_VOLUME_NORM ? PA_VOLUME_NORM : volume->values[0];
if (ss->channels >= 2)
vol |= ((volume->values[1]*100)/PA_VOLUME_NORM) << 8;
vol = (l*100)/PA_VOLUME_NORM;
if (ss->channels >= 2) {
r = volume->values[1] > PA_VOLUME_NORM ? PA_VOLUME_NORM : volume->values[1];
vol |= ((r*100)/PA_VOLUME_NORM) << 8;
}
if (ioctl(fd, mixer, &vol) < 0)
return -1;