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-rw-r--r--services/audioflinger/AudioMixer.cpp81
1 files changed, 41 insertions, 40 deletions
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
index 8bd04c6..8bea752 100644
--- a/services/audioflinger/AudioMixer.cpp
+++ b/services/audioflinger/AudioMixer.cpp
@@ -58,7 +58,7 @@ AudioMixer::DownmixerBufferProvider::~DownmixerBufferProvider()
status_t AudioMixer::DownmixerBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer,
int64_t pts) {
//ALOGV("DownmixerBufferProvider::getNextBuffer()");
- if (this->mTrackBufferProvider != NULL) {
+ if (mTrackBufferProvider != NULL) {
status_t res = mTrackBufferProvider->getNextBuffer(pBuffer, pts);
if (res == OK) {
mDownmixConfig.inputCfg.buffer.frameCount = pBuffer->frameCount;
@@ -81,7 +81,7 @@ status_t AudioMixer::DownmixerBufferProvider::getNextBuffer(AudioBufferProvider:
void AudioMixer::DownmixerBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer) {
//ALOGV("DownmixerBufferProvider::releaseBuffer()");
- if (this->mTrackBufferProvider != NULL) {
+ if (mTrackBufferProvider != NULL) {
mTrackBufferProvider->releaseBuffer(pBuffer);
} else {
ALOGE("DownmixerBufferProvider::releaseBuffer() error: NULL track buffer provider");
@@ -90,9 +90,9 @@ void AudioMixer::DownmixerBufferProvider::releaseBuffer(AudioBufferProvider::Buf
// ----------------------------------------------------------------------------
-bool AudioMixer::isMultichannelCapable = false;
+bool AudioMixer::sIsMultichannelCapable = false;
-effect_descriptor_t AudioMixer::dwnmFxDesc;
+effect_descriptor_t AudioMixer::sDwnmFxDesc;
// Ensure mConfiguredNames bitmask is initialized properly on all architectures.
// The value of 1 << x is undefined in C when x >= 32.
@@ -113,8 +113,6 @@ AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTr
// AudioMixer is not yet capable of multi-channel output beyond stereo
ALOG_ASSERT(2 == MAX_NUM_CHANNELS, "bad MAX_NUM_CHANNELS %d", MAX_NUM_CHANNELS);
- LocalClock lc;
-
pthread_once(&sOnceControl, &sInitRoutine);
mState.enabledTracks= 0;
@@ -136,27 +134,6 @@ AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTr
t++;
}
- // find multichannel downmix effect if we have to play multichannel content
- uint32_t numEffects = 0;
- int ret = EffectQueryNumberEffects(&numEffects);
- if (ret != 0) {
- ALOGE("AudioMixer() error %d querying number of effects", ret);
- return;
- }
- ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
-
- for (uint32_t i = 0 ; i < numEffects ; i++) {
- if (EffectQueryEffect(i, &dwnmFxDesc) == 0) {
- ALOGV("effect %d is called %s", i, dwnmFxDesc.name);
- if (memcmp(&dwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
- ALOGI("found effect \"%s\" from %s",
- dwnmFxDesc.name, dwnmFxDesc.implementor);
- isMultichannelCapable = true;
- break;
- }
- }
- }
- ALOGE_IF(!isMultichannelCapable, "unable to find downmix effect");
}
AudioMixer::~AudioMixer()
@@ -276,13 +253,13 @@ status_t AudioMixer::prepareTrackForDownmix(track_t* pTrack, int trackName)
DownmixerBufferProvider* pDbp = new DownmixerBufferProvider();
int32_t status;
- if (!isMultichannelCapable) {
+ if (!sIsMultichannelCapable) {
ALOGE("prepareTrackForDownmix(%d) fails: mixer doesn't support multichannel content",
trackName);
goto noDownmixForActiveTrack;
}
- if (EffectCreate(&dwnmFxDesc.uuid,
+ if (EffectCreate(&sDwnmFxDesc.uuid,
pTrack->sessionId /*sessionId*/, -2 /*ioId not relevant here, using random value*/,
&pDbp->mDownmixHandle/*pHandle*/) != 0) {
ALOGE("prepareTrackForDownmix(%d) fails: error creating downmixer effect", trackName);
@@ -667,27 +644,29 @@ void AudioMixer::process__validate(state_t* state, int64_t pts)
countActiveTracks++;
track_t& t = state->tracks[i];
uint32_t n = 0;
+ // FIXME can overflow (mask is only 3 bits)
n |= NEEDS_CHANNEL_1 + t.channelCount - 1;
- n |= NEEDS_FORMAT_16;
- n |= t.doesResample() ? NEEDS_RESAMPLE_ENABLED : NEEDS_RESAMPLE_DISABLED;
+ if (t.doesResample()) {
+ n |= NEEDS_RESAMPLE;
+ }
if (t.auxLevel != 0 && t.auxBuffer != NULL) {
- n |= NEEDS_AUX_ENABLED;
+ n |= NEEDS_AUX;
}
if (t.volumeInc[0]|t.volumeInc[1]) {
volumeRamp = true;
} else if (!t.doesResample() && t.volumeRL == 0) {
- n |= NEEDS_MUTE_ENABLED;
+ n |= NEEDS_MUTE;
}
t.needs = n;
- if ((n & NEEDS_MUTE__MASK) == NEEDS_MUTE_ENABLED) {
+ if (n & NEEDS_MUTE) {
t.hook = track__nop;
} else {
- if ((n & NEEDS_AUX__MASK) == NEEDS_AUX_ENABLED) {
+ if (n & NEEDS_AUX) {
all16BitsStereoNoResample = false;
}
- if ((n & NEEDS_RESAMPLE__MASK) == NEEDS_RESAMPLE_ENABLED) {
+ if (n & NEEDS_RESAMPLE) {
all16BitsStereoNoResample = false;
resampling = true;
t.hook = track__genericResample;
@@ -753,7 +732,7 @@ void AudioMixer::process__validate(state_t* state, int64_t pts)
en &= ~(1<<i);
track_t& t = state->tracks[i];
if (!t.doesResample() && t.volumeRL == 0) {
- t.needs |= NEEDS_MUTE_ENABLED;
+ t.needs |= NEEDS_MUTE;
t.hook = track__nop;
} else {
allMuted = false;
@@ -1157,7 +1136,7 @@ void AudioMixer::process__genericNoResampling(state_t* state, int64_t pts)
track_t& t = state->tracks[i];
size_t outFrames = BLOCKSIZE;
int32_t *aux = NULL;
- if (CC_UNLIKELY((t.needs & NEEDS_AUX__MASK) == NEEDS_AUX_ENABLED)) {
+ if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
aux = t.auxBuffer + numFrames;
}
while (outFrames) {
@@ -1238,14 +1217,14 @@ void AudioMixer::process__genericResampling(state_t* state, int64_t pts)
e1 &= ~(1<<i);
track_t& t = state->tracks[i];
int32_t *aux = NULL;
- if (CC_UNLIKELY((t.needs & NEEDS_AUX__MASK) == NEEDS_AUX_ENABLED)) {
+ if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
aux = t.auxBuffer;
}
// this is a little goofy, on the resampling case we don't
// acquire/release the buffers because it's done by
// the resampler.
- if ((t.needs & NEEDS_RESAMPLE__MASK) == NEEDS_RESAMPLE_ENABLED) {
+ if (t.needs & NEEDS_RESAMPLE) {
t.resampler->setPTS(pts);
t.hook(&t, outTemp, numFrames, state->resampleTemp, aux);
} else {
@@ -1459,6 +1438,28 @@ int64_t AudioMixer::calculateOutputPTS(const track_t& t, int64_t basePTS,
{
LocalClock lc;
sLocalTimeFreq = lc.getLocalFreq();
+
+ // find multichannel downmix effect if we have to play multichannel content
+ uint32_t numEffects = 0;
+ int ret = EffectQueryNumberEffects(&numEffects);
+ if (ret != 0) {
+ ALOGE("AudioMixer() error %d querying number of effects", ret);
+ return;
+ }
+ ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
+
+ for (uint32_t i = 0 ; i < numEffects ; i++) {
+ if (EffectQueryEffect(i, &sDwnmFxDesc) == 0) {
+ ALOGV("effect %d is called %s", i, sDwnmFxDesc.name);
+ if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
+ ALOGI("found effect \"%s\" from %s",
+ sDwnmFxDesc.name, sDwnmFxDesc.implementor);
+ sIsMultichannelCapable = true;
+ break;
+ }
+ }
+ }
+ ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect");
}
// ----------------------------------------------------------------------------
generated by cgit v1.1 at 2024-05-29 02:00:49 +0000