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[Qemu-devel] [PATCH v4 01/11] audio: add VOICE_VOLUME ctl
From: |
Marc-André Lureau |
Subject: |
[Qemu-devel] [PATCH v4 01/11] audio: add VOICE_VOLUME ctl |
Date: |
Tue, 13 Mar 2012 16:20:49 +0100 |
Add a new PCM control operation to update the stream volume on the
audio backend. The argument given is a SWVoiceOut/SWVoiceIn.
v4:
- verified other backends didn't fail/assert on this new control
they randomly return 0 or -1, but we ignore return value.
Signed-off-by: Marc-André Lureau <address@hidden>
---
audio/audio.c | 12 ++++++++++++
audio/audio_int.h | 1 +
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/audio/audio.c b/audio/audio.c
index 398763f..d76c342 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -2053,17 +2053,29 @@ void AUD_del_capture (CaptureVoiceOut *cap, void
*cb_opaque)
void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
{
if (sw) {
+ HWVoiceOut *hw = sw->hw;
+
sw->vol.mute = mute;
sw->vol.l = nominal_volume.l * lvol / 255;
sw->vol.r = nominal_volume.r * rvol / 255;
+
+ if (hw->pcm_ops->ctl_out) {
+ hw->pcm_ops->ctl_out (hw, VOICE_VOLUME, sw);
+ }
}
}
void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
{
if (sw) {
+ HWVoiceIn *hw = sw->hw;
+
sw->vol.mute = mute;
sw->vol.l = nominal_volume.l * lvol / 255;
sw->vol.r = nominal_volume.r * rvol / 255;
+
+ if (hw->pcm_ops->ctl_in) {
+ hw->pcm_ops->ctl_in (hw, VOICE_VOLUME, sw);
+ }
}
}
diff --git a/audio/audio_int.h b/audio/audio_int.h
index 2003f8b..117f95e 100644
--- a/audio/audio_int.h
+++ b/audio/audio_int.h
@@ -231,6 +231,7 @@ void audio_run (const char *msg);
#define VOICE_ENABLE 1
#define VOICE_DISABLE 2
+#define VOICE_VOLUME 3
static inline int audio_ring_dist (int dst, int src, int len)
{
--
1.7.7.6
[Qemu-devel] [PATCH v4 09/11] Allow controlling volume with PulseAudio backend, Marc-André Lureau, 2012/03/13
[Qemu-devel] [PATCH v4 10/11] Enable mixemu by default, add runtime option, Marc-André Lureau, 2012/03/13