diff options
Diffstat (limited to 'src/modules/oss-util.c')
-rw-r--r-- | src/modules/oss-util.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/modules/oss-util.c b/src/modules/oss-util.c index e9a133f5..597d16d7 100644 --- a/src/modules/oss-util.c +++ b/src/modules/oss-util.c @@ -166,3 +166,39 @@ int pa_oss_set_fragments(int fd, int nfrags, int frag_size) { return 0; } + +int pa_oss_get_volume(int fd, const pa_sample_spec *ss, pa_cvolume *volume) { + char cv[PA_CVOLUME_SNPRINT_MAX]; + unsigned vol; + + assert(fd >= 0); + assert(ss); + assert(volume); + + if (ioctl(fd, SOUND_MIXER_READ_PCM, &vol) < 0) + return -1; + + volume->values[0] = ((vol & 0xFF) * PA_VOLUME_NORM) / 100; + + if ((volume->channels = ss->channels) >= 2) + volume->values[1] = (((vol >> 8) & 0xFF) * PA_VOLUME_NORM) / 100; + + pa_log_debug(__FILE__": Read mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), volume)); + return 0; +} + +int pa_oss_set_volume(int fd, const pa_sample_spec *ss, const pa_cvolume *volume) { + char cv[PA_CVOLUME_SNPRINT_MAX]; + unsigned vol; + + vol = (volume->values[0]*100)/PA_VOLUME_NORM; + + if (ss->channels >= 2) + vol |= ((volume->values[1]*100)/PA_VOLUME_NORM) << 8; + + if (ioctl(fd, SOUND_MIXER_WRITE_PCM, &vol) < 0) + return -1; + + pa_log_debug(__FILE__": Wrote mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), volume)); + return 0; +} |