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authorMarc-André Lureau <marcandre.lureau@gmail.com>2012-04-17 14:32:36 +0200
committermalc <av1474@comtv.ru>2012-04-17 16:57:57 +0400
commitc01b2456238f73964876471452e27d4aad7900fb (patch)
tree828e8798ffc13fac2972657332fdc9bccd7ee965 /audio/audio.c
parent6c95ab94f9f7e8d3156e4e16ecc7c499e141bb1a (diff)
audio: don't apply volume effect if backend has VOICE_VOLUME_CAP
If the audio backend is capable of volume control, don't apply software volume (mixeng_volume ()), but instead, rely on backend volume control. This will allow guest to have full range volume control. Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
Diffstat (limited to 'audio/audio.c')
-rw-r--r--audio/audio.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/audio/audio.c b/audio/audio.c
index d76c342dcf..bd9237e9d3 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -957,7 +957,9 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size)
total += isamp;
}
- mixeng_volume (sw->buf, ret, &sw->vol);
+ if (!(hw->ctl_caps & VOICE_VOLUME_CAP)) {
+ mixeng_volume (sw->buf, ret, &sw->vol);
+ }
sw->clip (buf, sw->buf, ret);
sw->total_hw_samples_acquired += total;
@@ -1041,7 +1043,10 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size)
swlim = audio_MIN (swlim, samples);
if (swlim) {
sw->conv (sw->buf, buf, swlim);
- mixeng_volume (sw->buf, swlim, &sw->vol);
+
+ if (!(sw->hw->ctl_caps & VOICE_VOLUME_CAP)) {
+ mixeng_volume (sw->buf, swlim, &sw->vol);
+ }
}
while (swlim) {