Audio Effects: fix problems in volume control.
- Fixed click when re-enabling effect during the turn off phase:
make sure the effect states where effect is processed are the same
where volume control is delegated to effect.
- Fixed click when effect is deleted while still active: do not apply
volume ramp if an effect having volume control was just removed from the
effect chain.
Also fixed a crash when PCM dump is enabled in effect bundle wrapper.
Change-Id: Ib562f5cf75c69af75df0e862536262e2514493e4
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index ff31470..1acdaaf 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1781,6 +1781,14 @@
if (chain != 0 && chain->setVolume_l(&vl, &vr)) {
// Do not ramp volume is volume is controlled by effect
param = AudioMixer::VOLUME;
+ track->mHasVolumeController = true;
+ } else {
+ // force no volume ramp when volume controller was just disabled or removed
+ // from effect chain to avoid volume spike
+ if (track->mHasVolumeController) {
+ param = AudioMixer::VOLUME;
+ }
+ track->mHasVolumeController = false;
}
// Convert volumes from 8.24 to 4.12 format
@@ -2901,7 +2909,8 @@
const sp<IMemory>& sharedBuffer,
int sessionId)
: TrackBase(thread, client, sampleRate, format, channelCount, frameCount, 0, sharedBuffer, sessionId),
- mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL), mAuxEffectId(0)
+ mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL),
+ mAuxEffectId(0), mHasVolumeController(false)
{
if (mCblk != NULL) {
sp<ThreadBase> baseThread = thread.promote();
@@ -5371,7 +5380,7 @@
return;
}
- if (mState == ACTIVE || mState == STOPPING || mState == STOPPED || mState == RESTART) {
+ if (isProcessEnabled()) {
// do 32 bit to 16 bit conversion for auxiliary effect input buffer
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
AudioMixer::ditherAndClamp(mConfig.inputCfg.buffer.s32,
@@ -5600,6 +5609,8 @@
// going from enabled to disabled
case RESTART:
+ mState = STOPPED;
+ break;
case STARTING:
mState = IDLE;
break;
@@ -5632,6 +5643,21 @@
}
}
+bool AudioFlinger::EffectModule::isProcessEnabled()
+{
+ switch (mState) {
+ case RESTART:
+ case ACTIVE:
+ case STOPPING:
+ case STOPPED:
+ return true;
+ case IDLE:
+ case STARTING:
+ default:
+ return false;
+ }
+}
+
status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
{
Mutex::Autolock _l(mLock);
@@ -5639,7 +5665,7 @@
// Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume
// if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set)
- if ((mState >= ACTIVE) &&
+ if (isProcessEnabled() &&
((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL ||
(mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) {
status_t cmdStatus;
@@ -6288,7 +6314,7 @@
// first update volume controller
for (size_t i = size; i > 0; i--) {
- if ((mEffects[i - 1]->state() >= EffectModule::ACTIVE) &&
+ if (mEffects[i - 1]->isProcessEnabled() &&
(mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) {
ctrlIdx = i - 1;
hasControl = true;
@@ -6304,9 +6330,6 @@
return hasControl;
}
- if (mVolumeCtrlIdx != -1) {
- hasControl = true;
- }
mVolumeCtrlIdx = ctrlIdx;
mLeftVolume = newLeft;
mRightVolume = newRight;