/*
**
** Copyright 2012, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "AudioFlinger"
//#define LOG_NDEBUG 0
#include "Configuration.h"
#include <utils/Log.h>
#include <audio_utils/primitives.h>
#include <private/media/AudioEffectShared.h>
#include <media/audiohal/EffectHalInterface.h>
#include <media/audiohal/EffectsFactoryHalInterface.h>
#include <system/audio_effects/effect_visualizer.h>
#include "AudioFlinger.h"
#include "ServiceUtilities.h"
// ----------------------------------------------------------------------------
// Note: the following macro is used for extremely verbose logging message. In
// order to run with ALOG_ASSERT turned on, we need to have LOG_NDEBUG set to
// 0; but one side effect of this is to turn all LOGV's as well. Some messages
// are so verbose that we want to suppress them even when we have ALOG_ASSERT
// turned on. Do not uncomment the #def below unless you really know what you
// are doing and want to see all of the extremely verbose messages.
//#define VERY_VERY_VERBOSE_LOGGING
#ifdef VERY_VERY_VERBOSE_LOGGING
#define ALOGVV ALOGV
#else
#define ALOGVV(a...) do { } while(0)
#endif
#define min(a, b) ((a) < (b) ? (a) : (b))
namespace android {
// ----------------------------------------------------------------------------
// EffectModule implementation
// ----------------------------------------------------------------------------
#undef LOG_TAG
#define LOG_TAG "AudioFlinger::EffectModule"
AudioFlinger::EffectModule::EffectModule(ThreadBase *thread,
const wp<AudioFlinger::EffectChain>& chain,
effect_descriptor_t *desc,
int id,
audio_session_t sessionId,
bool pinned)
: mPinned(pinned),
mThread(thread), mChain(chain), mId(id), mSessionId(sessionId),
mDescriptor(*desc),
// mConfig is set by configure() and not used before then
mStatus(NO_INIT), mState(IDLE),
// mMaxDisableWaitCnt is set by configure() and not used before then
// mDisableWaitCnt is set by process() and updateState() and not used before then
mSuspended(false),
mAudioFlinger(thread->mAudioFlinger)
{
ALOGV("Constructor %p pinned %d", this, pinned);
int lStatus;
// create effect engine from effect factory
mStatus = -ENODEV;
sp<AudioFlinger> audioFlinger = mAudioFlinger.promote();
if (audioFlinger != 0) {
sp<EffectsFactoryHalInterface> effectsFactory = audioFlinger->getEffectsFactory();
if (effectsFactory != 0) {
mStatus = effectsFactory->createEffect(
&desc->uuid, sessionId, thread->id(), &mEffectInterface);
}
}
if (mStatus != NO_ERROR) {
return;
}
lStatus = init();
if (lStatus < 0) {
mStatus = lStatus;
goto Error;
}
setOffloaded(thread->type() == ThreadBase::OFFLOAD, thread->id());
ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface.get());
return;
Error:
mEffectInterface.clear();
ALOGV("Constructor Error %d", mStatus);
}
AudioFlinger::EffectModule::~EffectModule()
{
ALOGV("Destructor %p", this);
if (mEffectInterface != 0) {
ALOGW("EffectModule %p destructor called with unreleased interface", this);
release_l();
}
}
status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle)
{
status_t status;
Mutex::Autolock _l(mLock);
int priority = handle->priority();
size_t size = mHandles.size();
EffectHandle *controlHandle = NULL;
size_t i;
for (i = 0; i < size; i++) {
EffectHandle *h = mHandles[i];
if (h == NULL || h->disconnected()) {
continue;
}
// first non destroyed handle is considered in control
if (controlHandle == NULL) {
controlHandle = h;
}
if (h->priority() <= priority) {
break;
}
}
// if inserted in first place, move effect control from previous owner to this handle
if (i == 0) {
bool enabled = false;
if (controlHandle != NULL) {
enabled = controlHandle->enabled();
controlHandle->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/);
}
handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/);
status = NO_ERROR;
} else {
status = ALREADY_EXISTS;
}
ALOGV("addHandle() %p added handle %p in position %zu", this, handle, i);
mHandles.insertAt(handle, i);
return status;
}
ssize_t AudioFlinger::EffectModule::removeHandle(EffectHandle *handle)
{
Mutex::Autolock _l(mLock);
return removeHandle_l(handle);
}
ssize_t AudioFlinger::EffectModule::removeHandle_l(EffectHandle *handle)
{
size_t size = mHandles.size();
size_t i;
for (i = 0; i < size; i++) {
if (mHandles[i] == handle) {
break;
}
}
if (i == size) {
ALOGW("%s %p handle not found %p", __FUNCTION__, this, handle);
return BAD_VALUE;
}
ALOGV("removeHandle_l() %p removed handle %p in position %zu", this, handle, i);
mHandles.removeAt(i);
// if removed from first place, move effect control from this handle to next in line
if (i == 0) {
EffectHandle *h = controlHandle_l();
if (h != NULL) {
h->setControl(true /*hasControl*/, true /*signal*/ , handle->enabled() /*enabled*/);
}
}
// Prevent calls to process() and other functions on effect interface from now on.
// The effect engine will be released by the destructor when the last strong reference on
// this object is released which can happen after next process is called.
if (mHandles.size() == 0 && !mPinned) {
mState = DESTROYED;
mEffectInterface->close();
}
return mHandles.size();
}
// must be called with EffectModule::mLock held
AudioFlinger::EffectHandle *AudioFlinger::EffectModule::controlHandle_l()
{
// the first valid handle in the list has control over the module
for (size_t i = 0; i < mHandles.size(); i++) {
EffectHandle *h = mHandles[i];
if (h != NULL && !h->disconnected()) {
return h;
}
}
return NULL;
}
// unsafe method called when the effect parent thread has been destroyed
ssize_t AudioFlinger::EffectModule::disconnectHandle(EffectHandle *handle, bool unpinIfLast)
{
ALOGV("disconnect() %p handle %p", this, handle);
Mutex::Autolock _l(mLock);
ssize_t numHandles = removeHandle_l(handle);
if ((numHandles == 0) && (!mPinned || unpinIfLast)) {
AudioSystem::unregisterEffect(mId);
sp<AudioFlinger> af = mAudioFlinger.promote();
if (af != 0) {
mLock.unlock();
af->updateOrphanEffectChains(this);
mLock.lock();
}
}
return numHandles;
}
bool AudioFlinger::EffectModule::updateState() {
Mutex::Autolock _l(mLock);
bool started = false;
switch (mState) {
case RESTART:
reset_l();
// FALL THROUGH
case STARTING:
// clear auxiliary effect input buffer for next accumulation
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
memset(mConfig.inputCfg.buffer.raw,
0,
mConfig.inputCfg.buffer.frameCount*sizeof(int32_t));
}
if (start_l() == NO_ERROR) {
mState = ACTIVE;
started = true;
} else {
mState = IDLE;
}
break;
case STOPPING:
if (stop_l() == NO_ERROR) {
mDisableWaitCnt = mMaxDisableWaitCnt;
} else {
mDisableWaitCnt = 1; // will cause immediate transition to IDLE
}
mState = STOPPED;
break;
case STOPPED:
// mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the
// turn off sequence.
if (--mDisableWaitCnt == 0) {
reset_l();
mState = IDLE;
}
break;
default: //IDLE , ACTIVE, DESTROYED
break;
}
return started;
}
void AudioFlinger::EffectModule::process()
{
Mutex::Autolock _l(mLock);
if (mState == DESTROYED || mEffectInterface == 0 || mInBuffer == 0 || mOutBuffer == 0) {
return;
}
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) {
ditherAndClamp(mConfig.inputCfg.buffer.s32,
mConfig.inputCfg.buffer.s32,
mConfig.inputCfg.buffer.frameCount/2);
}
int ret;
if (isProcessImplemented()) {
// do the actual processing in the effect engine
ret = mEffectInterface->process();
} else {
if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
size_t frameCnt = mConfig.inputCfg.buffer.frameCount * FCC_2; //always stereo here
int16_t *in = mConfig.inputCfg.buffer.s16;
int16_t *out = mConfig.outputCfg.buffer.s16;
if (mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
for (size_t i = 0; i < frameCnt; i++) {
out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]);
}
} else {
memcpy(mConfig.outputCfg.buffer.raw, mConfig.inputCfg.buffer.raw,
frameCnt * sizeof(int16_t));
}
}
ret = -ENODATA;
}
// force transition to IDLE state when engine is ready
if (mState == STOPPED && ret == -ENODATA) {
mDisableWaitCnt = 1;
}
// clear auxiliary effect input buffer for next accumulation
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
memset(mConfig.inputCfg.buffer.raw, 0,
mConfig.inputCfg.buffer.frameCount*sizeof(int32_t));
}
} else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT &&
mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
// If an insert effect is idle and input buffer is different from output buffer,
// accumulate input onto output
sp<EffectChain> chain = mChain.promote();
if (chain != 0 && chain->activeTrackCnt() != 0) {
size_t frameCnt = mConfig.inputCfg.buffer.frameCount * FCC_2; //always stereo here
int16_t *in = mConfig.inputCfg.buffer.s16;
int16_t *out = mConfig.outputCfg.buffer.s16;
for (size_t i = 0; i < frameCnt; i++) {
out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]);
}
}
}
}
void AudioFlinger::EffectModule::reset_l()
{
if (mStatus != NO_ERROR || mEffectInterface == 0) {
return;
}
mEffectInterface->command(EFFECT_CMD_RESET, 0, NULL, 0, NULL);
}
status_t AudioFlinger::EffectModule::configure()
{
status_t status;
sp<ThreadBase> thread;
uint32_t size;
audio_channel_mask_t channelMask;
if (mEffectInterface == 0) {
status = NO_INIT;
goto exit;
}
thread = mThread.promote();
if (thread == 0) {
status = DEAD_OBJECT;
goto exit;
}
// TODO: handle configuration of effects replacing track process
channelMask = thread->channelMask();
mConfig.outputCfg.channels = channelMask;
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO;
mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
ALOGV("Overriding auxiliary effect input as MONO and output as STEREO");
} else {
mConfig.inputCfg.channels = channelMask;
// TODO: Update this logic when multichannel effects are implemented.
// For offloaded tracks consider mono output as stereo for proper effect initialization
if (channelMask == AUDIO_CHANNEL_OUT_MONO) {
mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
ALOGV("Overriding effect input and output as STEREO");
}
}
mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
mConfig.inputCfg.samplingRate = thread->sampleRate();
mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate;
mConfig.inputCfg.bufferProvider.cookie = NULL;
mConfig.inputCfg.bufferProvider.getBuffer = NULL;
mConfig.inputCfg.bufferProvider.releaseBuffer = NULL;
mConfig.outputCfg.bufferProvider.cookie = NULL;
mConfig.outputCfg.bufferProvider.getBuffer = NULL;
mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
// Insert effect:
// - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE,
// always overwrites output buffer: input buffer == output buffer
// - in other sessions:
// last effect in the chain accumulates in output buffer: input buffer != output buffer
// other effect: overwrites output buffer: input buffer == output buffer
// Auxiliary effect:
// accumulates in output buffer: input buffer != output buffer
// Therefore: accumulate <=> input buffer != output buffer
if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
} else {
mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
}
mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
mConfig.inputCfg.buffer.frameCount = thread->frameCount();
mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
if (mInBuffer != 0) {
mInBuffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
}
if (mOutBuffer != 0) {
mOutBuffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
}
ALOGV("configure() %p thread %p buffer %p framecount %zu",
this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
status_t cmdStatus;
size = sizeof(int);
status = mEffectInterface->command(EFFECT_CMD_SET_CONFIG,
sizeof(effect_config_t),
&mConfig,
&size,
&cmdStatus);
if (status == 0) {
status = cmdStatus;
}
if (status == 0 &&
(memcmp(&mDescriptor.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0)) {
uint32_t buf32[sizeof(effect_param_t) / sizeof(uint32_t) + 2];
effect_param_t *p = (effect_param_t *)buf32;
p->psize = sizeof(uint32_t);
p->vsize = sizeof(uint32_t);
size = sizeof(int);
*(int32_t *)p->data = VISUALIZER_PARAM_LATENCY;
uint32_t latency = 0;
PlaybackThread *pbt = thread->mAudioFlinger->checkPlaybackThread_l(thread->mId);
if (pbt != NULL) {
latency = pbt->latency_l();
}
*((int32_t *)p->data + 1)= latency;
mEffectInterface->command(EFFECT_CMD_SET_PARAM,
sizeof(effect_param_t) + 8,
&buf32,
&size,
&cmdStatus);
}
mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) /
(1000 * mConfig.outputCfg.buffer.frameCount);
exit:
mStatus = status;
return status;
}
status_t AudioFlinger::EffectModule::init()
{
Mutex::Autolock _l(mLock);
if (mEffectInterface == 0) {
return NO_INIT;
}
status_t cmdStatus;
uint32_t size = sizeof(status_t);
status_t status = mEffectInterface->command(EFFECT_CMD_INIT,
0,
NULL,
&size,
&cmdStatus);
if (status == 0) {
status = cmdStatus;
}
return status;
}
void AudioFlinger::EffectModule::addEffectToHal_l()
{
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
(mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
sp<ThreadBase> thread = mThread.promote();
if (thread != 0) {
sp<StreamHalInterface> stream = thread->stream();
if (stream != 0) {
status_t result = stream->addEffect(mEffectInterface);
ALOGE_IF(result != OK, "Error when adding effect: %d", result);
}
}
}
}
// start() must be called with PlaybackThread::mLock or EffectChain::mLock held
status_t AudioFlinger::EffectModule::start()
{
sp<EffectChain> chain;
status_t status;
{
Mutex::Autolock _l(mLock);
status = start_l();
if (status == NO_ERROR) {
chain = mChain.promote();
}
}
if (chain != 0) {
chain->resetVolume_l();
}
return status;
}
status_t AudioFlinger::EffectModule::start_l()
{
if (mEffectInterface == 0) {
return NO_INIT;
}
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t cmdStatus;
uint32_t size = sizeof(status_t);
status_t status = mEffectInterface->command(EFFECT_CMD_ENABLE,
0,
NULL,
&size,
&cmdStatus);
if (status == 0) {
status = cmdStatus;
}
if (status == 0) {
addEffectToHal_l();
}
return status;
}
status_t AudioFlinger::EffectModule::stop()
{
Mutex::Autolock _l(mLock);
return stop_l();
}
status_t AudioFlinger::EffectModule::stop_l()
{
if (mEffectInterface == 0) {
return NO_INIT;
}
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t cmdStatus = NO_ERROR;
uint32_t size = sizeof(status_t);
status_t status = mEffectInterface->command(EFFECT_CMD_DISABLE,
0,
NULL,
&size,
&cmdStatus);
if (status == NO_ERROR) {
status = cmdStatus;
}
if (status == NO_ERROR) {
status = remove_effect_from_hal_l();
}
return status;
}
// must be called with EffectChain::mLock held
void AudioFlinger::EffectModule::release_l()
{
if (mEffectInterface != 0) {
remove_effect_from_hal_l();
// release effect engine
mEffectInterface->close();
mEffectInterface.clear();
}
}
status_t AudioFlinger::EffectModule::remove_effect_from_hal_l()
{
if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
(mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
sp<ThreadBase> thread = mThread.promote();
if (thread != 0) {
sp<StreamHalInterface> stream = thread->stream();
if (stream != 0) {
status_t result = stream->removeEffect(mEffectInterface);
ALOGE_IF(result != OK, "Error when removing effect: %d", result);
}
}
}
return NO_ERROR;
}
// round up delta valid if value and divisor are positive.
template <typename T>
static T roundUpDelta(const T &value, const T &divisor) {
T remainder = value % divisor;
return remainder == 0 ? 0 : divisor - remainder;
}
status_t AudioFlinger::EffectModule::command(uint32_t cmdCode,
uint32_t cmdSize,
void *pCmdData,
uint32_t *replySize,
void *pReplyData)
{
Mutex::Autolock _l(mLock);
ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface.get());
if (mState == DESTROYED || mEffectInterface == 0) {
return NO_INIT;
}
if (mStatus != NO_ERROR) {
return mStatus;
}
if (cmdCode == EFFECT_CMD_GET_PARAM &&
(sizeof(effect_param_t) > cmdSize ||
((effect_param_t *)pCmdData)->psize > cmdSize
- sizeof(effect_param_t))) {
android_errorWriteLog(0x534e4554, "32438594");
android_errorWriteLog(0x534e4554, "33003822");
return -EINVAL;
}
if (cmdCode == EFFECT_CMD_GET_PARAM &&
(*replySize < sizeof(effect_param_t) ||
((effect_param_t *)pCmdData)->psize > *replySize - sizeof(effect_param_t))) {
android_errorWriteLog(0x534e4554, "29251553");
return -EINVAL;
}
if (cmdCode == EFFECT_CMD_GET_PARAM &&
(sizeof(effect_param_t) > *replySize
|| ((effect_param_t *)pCmdData)->psize > *replySize
- sizeof(effect_param_t)
|| ((effect_param_t *)pCmdData)->vsize > *replySize
- sizeof(effect_param_t)
- ((effect_param_t *)pCmdData)->psize
|| roundUpDelta(((effect_param_t *)pCmdData)->psize, (uint32_t)sizeof(int)) >
*replySize
- sizeof(effect_param_t)
- ((effect_param_t *)pCmdData)->psize
- ((effect_param_t *)pCmdData)->vsize)) {
ALOGV("\tLVM_ERROR : EFFECT_CMD_GET_PARAM: reply size inconsistent");
android_errorWriteLog(0x534e4554, "32705438");
return -EINVAL;
}
if ((cmdCode == EFFECT_CMD_SET_PARAM
|| cmdCode == EFFECT_CMD_SET_PARAM_DEFERRED) && // DEFERRED not generally used
(sizeof(effect_param_t) > cmdSize
|| ((effect_param_t *)pCmdData)->psize > cmdSize
- sizeof(effect_param_t)
|| ((effect_param_t *)pCmdData)->vsize > cmdSize
- sizeof(effect_param_t)
- ((effect_param_t *)pCmdData)->psize
|| roundUpDelta(((effect_param_t *)pCmdData)->psize, (uint32_t)sizeof(int)) >
cmdSize
- sizeof(effect_param_t)
- ((effect_param_t *)pCmdData)->psize
- ((effect_param_t *)pCmdData)->vsize)) {
android_errorWriteLog(0x534e4554, "30204301");
return -EINVAL;
}
status_t status = mEffectInterface->command(cmdCode,
cmdSize,
pCmdData,
replySize,
pReplyData);
if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) {
uint32_t size = (replySize == NULL) ? 0 : *replySize;
for (size_t i = 1; i < mHandles.size(); i++) {
EffectHandle *h = mHandles[i];
if (h != NULL && !h->disconnected()) {
h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData);
}
}
}
return status;
}
status_t AudioFlinger::EffectModule::setEnabled(bool enabled)
{
Mutex::Autolock _l(mLock);
return setEnabled_l(enabled);
}
// must be called with EffectModule::mLock held
status_t AudioFlinger::EffectModule::setEnabled_l(bool enabled)
{
ALOGV("setEnabled %p enabled %d", this, enabled);
if (enabled != isEnabled()) {
status_t status = AudioSystem::setEffectEnabled(mId, enabled);
if (enabled && status != NO_ERROR) {
return status;
}
switch (mState) {
// going from disabled to enabled
case IDLE:
mState = STARTING;
break;
case STOPPED:
mState = RESTART;
break;
case STOPPING:
mState = ACTIVE;
break;
// going from enabled to disabled
case RESTART:
mState = STOPPED;
break;
case STARTING:
mState = IDLE;
break;
case ACTIVE:
mState = STOPPING;
break;
case DESTROYED:
return NO_ERROR; // simply ignore as we are being destroyed
}
for (size_t i = 1; i < mHandles.size(); i++) {
EffectHandle *h = mHandles[i];
if (h != NULL && !h->disconnected()) {
h->setEnabled(enabled);
}
}
}
return NO_ERROR;
}
bool AudioFlinger::EffectModule::isEnabled() const
{
switch (mState) {
case RESTART:
case STARTING:
case ACTIVE:
return true;
case IDLE:
case STOPPING:
case STOPPED:
case DESTROYED:
default:
return false;
}
}
bool AudioFlinger::EffectModule::isProcessEnabled() const
{
if (mStatus != NO_ERROR) {
return false;
}
switch (mState) {
case RESTART:
case ACTIVE:
case STOPPING:
case STOPPED:
return true;
case IDLE:
case STARTING:
case DESTROYED:
default:
return false;
}
}
void AudioFlinger::EffectModule::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
if (buffer != 0) {
mConfig.inputCfg.buffer.raw = buffer->audioBuffer()->raw;
buffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
} else {
mConfig.inputCfg.buffer.raw = NULL;
}
mInBuffer = buffer;
mEffectInterface->setInBuffer(buffer);
}
void AudioFlinger::EffectModule::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
if (buffer != 0) {
mConfig.outputCfg.buffer.raw = buffer->audioBuffer()->raw;
buffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
} else {
mConfig.outputCfg.buffer.raw = NULL;
}
mOutBuffer = buffer;
mEffectInterface->setOutBuffer(buffer);
}
status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
{
Mutex::Autolock _l(mLock);
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t status = NO_ERROR;
// 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 (isProcessEnabled() &&
((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL ||
(mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) {
uint32_t volume[2];
uint32_t *pVolume = NULL;
uint32_t size = sizeof(volume);
volume[0] = *left;
volume[1] = *right;
if (controller) {
pVolume = volume;
}
status = mEffectInterface->command(EFFECT_CMD_SET_VOLUME,
size,
volume,
&size,
pVolume);
if (controller && status == NO_ERROR && size == sizeof(volume)) {
*left = volume[0];
*right = volume[1];
}
}
return status;
}
status_t AudioFlinger::EffectModule::setDevice(audio_devices_t device)
{
if (device == AUDIO_DEVICE_NONE) {
return NO_ERROR;
}
Mutex::Autolock _l(mLock);
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t status = NO_ERROR;
if ((mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) {
status_t cmdStatus;
uint32_t size = sizeof(status_t);
uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE :
EFFECT_CMD_SET_INPUT_DEVICE;
status = mEffectInterface->command(cmd,
sizeof(uint32_t),
&device,
&size,
&cmdStatus);
}
return status;
}
status_t AudioFlinger::EffectModule::setMode(audio_mode_t mode)
{
Mutex::Autolock _l(mLock);
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t status = NO_ERROR;
if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) {
status_t cmdStatus;
uint32_t size = sizeof(status_t);
status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_MODE,
sizeof(audio_mode_t),
&mode,
&size,
&cmdStatus);
if (status == NO_ERROR) {
status = cmdStatus;
}
}
return status;
}
status_t AudioFlinger::EffectModule::setAudioSource(audio_source_t source)
{
Mutex::Autolock _l(mLock);
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t status = NO_ERROR;
if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) {
uint32_t size = 0;
status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_SOURCE,
sizeof(audio_source_t),
&source,
&size,
NULL);
}
return status;
}
void AudioFlinger::EffectModule::setSuspended(bool suspended)
{
Mutex::Autolock _l(mLock);
mSuspended = suspended;
}
bool AudioFlinger::EffectModule::suspended() const
{
Mutex::Autolock _l(mLock);
return mSuspended;
}
bool AudioFlinger::EffectModule::purgeHandles()
{
bool enabled = false;
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mHandles.size(); i++) {
EffectHandle *handle = mHandles[i];
if (handle != NULL && !handle->disconnected()) {
if (handle->hasControl()) {
enabled = handle->enabled();
}
}
}
return enabled;
}
status_t AudioFlinger::EffectModule::setOffloaded(bool offloaded, audio_io_handle_t io)
{
Mutex::Autolock _l(mLock);
if (mStatus != NO_ERROR) {
return mStatus;
}
status_t status = NO_ERROR;
if ((mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0) {
status_t cmdStatus;
uint32_t size = sizeof(status_t);
effect_offload_param_t cmd;
cmd.isOffload = offloaded;
cmd.ioHandle = io;
status = mEffectInterface->command(EFFECT_CMD_OFFLOAD,
sizeof(effect_offload_param_t),
&cmd,
&size,
&cmdStatus);
if (status == NO_ERROR) {
status = cmdStatus;
}
mOffloaded = (status == NO_ERROR) ? offloaded : false;
} else {
if (offloaded) {
status = INVALID_OPERATION;
}
mOffloaded = false;
}
ALOGV("setOffloaded() offloaded %d io %d status %d", offloaded, io, status);
return status;
}
bool AudioFlinger::EffectModule::isOffloaded() const
{
Mutex::Autolock _l(mLock);
return mOffloaded;
}
String8 effectFlagsToString(uint32_t flags) {
String8 s;
s.append("conn. mode: ");
switch (flags & EFFECT_FLAG_TYPE_MASK) {
case EFFECT_FLAG_TYPE_INSERT: s.append("insert"); break;
case EFFECT_FLAG_TYPE_AUXILIARY: s.append("auxiliary"); break;
case EFFECT_FLAG_TYPE_REPLACE: s.append("replace"); break;
case EFFECT_FLAG_TYPE_PRE_PROC: s.append("preproc"); break;
case EFFECT_FLAG_TYPE_POST_PROC: s.append("postproc"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
s.append("insert pref: ");
switch (flags & EFFECT_FLAG_INSERT_MASK) {
case EFFECT_FLAG_INSERT_ANY: s.append("any"); break;
case EFFECT_FLAG_INSERT_FIRST: s.append("first"); break;
case EFFECT_FLAG_INSERT_LAST: s.append("last"); break;
case EFFECT_FLAG_INSERT_EXCLUSIVE: s.append("exclusive"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
s.append("volume mgmt: ");
switch (flags & EFFECT_FLAG_VOLUME_MASK) {
case EFFECT_FLAG_VOLUME_NONE: s.append("none"); break;
case EFFECT_FLAG_VOLUME_CTRL: s.append("implements control"); break;
case EFFECT_FLAG_VOLUME_IND: s.append("requires indication"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
uint32_t devind = flags & EFFECT_FLAG_DEVICE_MASK;
if (devind) {
s.append("device indication: ");
switch (devind) {
case EFFECT_FLAG_DEVICE_IND: s.append("requires updates"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
}
s.append("input mode: ");
switch (flags & EFFECT_FLAG_INPUT_MASK) {
case EFFECT_FLAG_INPUT_DIRECT: s.append("direct"); break;
case EFFECT_FLAG_INPUT_PROVIDER: s.append("provider"); break;
case EFFECT_FLAG_INPUT_BOTH: s.append("direct+provider"); break;
default: s.append("not set"); break;
}
s.append(", ");
s.append("output mode: ");
switch (flags & EFFECT_FLAG_OUTPUT_MASK) {
case EFFECT_FLAG_OUTPUT_DIRECT: s.append("direct"); break;
case EFFECT_FLAG_OUTPUT_PROVIDER: s.append("provider"); break;
case EFFECT_FLAG_OUTPUT_BOTH: s.append("direct+provider"); break;
default: s.append("not set"); break;
}
s.append(", ");
uint32_t accel = flags & EFFECT_FLAG_HW_ACC_MASK;
if (accel) {
s.append("hardware acceleration: ");
switch (accel) {
case EFFECT_FLAG_HW_ACC_SIMPLE: s.append("non-tunneled"); break;
case EFFECT_FLAG_HW_ACC_TUNNEL: s.append("tunneled"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
}
uint32_t modeind = flags & EFFECT_FLAG_AUDIO_MODE_MASK;
if (modeind) {
s.append("mode indication: ");
switch (modeind) {
case EFFECT_FLAG_AUDIO_MODE_IND: s.append("required"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
}
uint32_t srcind = flags & EFFECT_FLAG_AUDIO_SOURCE_MASK;
if (srcind) {
s.append("source indication: ");
switch (srcind) {
case EFFECT_FLAG_AUDIO_SOURCE_IND: s.append("required"); break;
default: s.append("unknown/reserved"); break;
}
s.append(", ");
}
if (flags & EFFECT_FLAG_OFFLOAD_MASK) {
s.append("offloadable, ");
}
int len = s.length();
if (s.length() > 2) {
(void) s.lockBuffer(len);
s.unlockBuffer(len - 2);
}
return s;
}
void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args __unused)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId);
result.append(buffer);
bool locked = AudioFlinger::dumpTryLock(mLock);
// failed to lock - AudioFlinger is probably deadlocked
if (!locked) {
result.append("\t\tCould not lock Fx mutex:\n");
}
result.append("\t\tSession Status State Engine:\n");
snprintf(buffer, SIZE, "\t\t%05d %03d %03d %p\n",
mSessionId, mStatus, mState, mEffectInterface.get());
result.append(buffer);
result.append("\t\tDescriptor:\n");
snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n",
mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion,
mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],
mDescriptor.uuid.node[2],
mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]);
result.append(buffer);
snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n",
mDescriptor.type.timeLow, mDescriptor.type.timeMid,
mDescriptor.type.timeHiAndVersion,
mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],
mDescriptor.type.node[2],
mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]);
result.append(buffer);
snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X (%s)\n",
mDescriptor.apiVersion,
mDescriptor.flags,
effectFlagsToString(mDescriptor.flags).string());
result.append(buffer);
snprintf(buffer, SIZE, "\t\t- name: %s\n",
mDescriptor.name);
result.append(buffer);
snprintf(buffer, SIZE, "\t\t- implementor: %s\n",
mDescriptor.implementor);
result.append(buffer);
result.append("\t\t- Input configuration:\n");
result.append("\t\t\tFrames Smp rate Channels Format Buffer\n");
snprintf(buffer, SIZE, "\t\t\t%05zu %05d %08x %6d (%s) %p\n",
mConfig.inputCfg.buffer.frameCount,
mConfig.inputCfg.samplingRate,
mConfig.inputCfg.channels,
mConfig.inputCfg.format,
formatToString((audio_format_t)mConfig.inputCfg.format).c_str(),
mConfig.inputCfg.buffer.raw);
result.append(buffer);
result.append("\t\t- Output configuration:\n");
result.append("\t\t\tBuffer Frames Smp rate Channels Format\n");
snprintf(buffer, SIZE, "\t\t\t%p %05zu %05d %08x %d (%s)\n",
mConfig.outputCfg.buffer.raw,
mConfig.outputCfg.buffer.frameCount,
mConfig.outputCfg.samplingRate,
mConfig.outputCfg.channels,
mConfig.outputCfg.format,
formatToString((audio_format_t)mConfig.outputCfg.format).c_str());
result.append(buffer);
snprintf(buffer, SIZE, "\t\t%zu Clients:\n", mHandles.size());
result.append(buffer);
result.append("\t\t\t Pid Priority Ctrl Locked client server\n");
for (size_t i = 0; i < mHandles.size(); ++i) {
EffectHandle *handle = mHandles[i];
if (handle != NULL && !handle->disconnected()) {
handle->dumpToBuffer(buffer, SIZE);
result.append(buffer);
}
}
write(fd, result.string(), result.length());
if (locked) {
mLock.unlock();
}
}
// ----------------------------------------------------------------------------
// EffectHandle implementation
// ----------------------------------------------------------------------------
#undef LOG_TAG
#define LOG_TAG "AudioFlinger::EffectHandle"
AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect,
const sp<AudioFlinger::Client>& client,
const sp<IEffectClient>& effectClient,
int32_t priority)
: BnEffect(),
mEffect(effect), mEffectClient(effectClient), mClient(client), mCblk(NULL),
mPriority(priority), mHasControl(false), mEnabled(false), mDisconnected(false)
{
ALOGV("constructor %p", this);
if (client == 0) {
return;
}
int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int);
mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset);
if (mCblkMemory == 0 ||
(mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer())) == NULL) {
ALOGE("not enough memory for Effect size=%zu", EFFECT_PARAM_BUFFER_SIZE +
sizeof(effect_param_cblk_t));
mCblkMemory.clear();
return;
}
new(mCblk) effect_param_cblk_t();
mBuffer = (uint8_t *)mCblk + bufOffset;
}
AudioFlinger::EffectHandle::~EffectHandle()
{
ALOGV("Destructor %p", this);
disconnect(false);
}
status_t AudioFlinger::EffectHandle::initCheck()
{
return mClient == 0 || mCblkMemory != 0 ? OK : NO_MEMORY;
}
status_t AudioFlinger::EffectHandle::enable()
{
AutoMutex _l(mLock);
ALOGV("enable %p", this);
sp<EffectModule> effect = mEffect.promote();
if (effect == 0 || mDisconnected) {
return DEAD_OBJECT;
}
if (!mHasControl) {
return INVALID_OPERATION;
}
if (mEnabled) {
return NO_ERROR;
}
mEnabled = true;
sp<ThreadBase> thread = effect->thread().promote();
if (thread != 0) {
thread->checkSuspendOnEffectEnabled(effect, true, effect->sessionId());
}
// checkSuspendOnEffectEnabled() can suspend this same effect when enabled
if (effect->suspended()) {
return NO_ERROR;
}
status_t status = effect->setEnabled(true);
if (status != NO_ERROR) {
if (thread != 0) {
thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
}
mEnabled = false;
} else {
if (thread != 0) {
if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
Mutex::Autolock _l(thread->mLock);
thread->broadcast_l();
}
if (!effect->isOffloadable()) {
if (thread->type() == ThreadBase::OFFLOAD) {
PlaybackThread *t = (PlaybackThread *)thread.get();
t->invalidateTracks(AUDIO_STREAM_MUSIC);
}
if (effect->sessionId() == AUDIO_SESSION_OUTPUT_MIX) {
thread->mAudioFlinger->onNonOffloadableGlobalEffectEnable();
}
}
}
}
return status;
}
status_t AudioFlinger::EffectHandle::disable()
{
ALOGV("disable %p", this);
AutoMutex _l(mLock);
sp<EffectModule> effect = mEffect.promote();
if (effect == 0 || mDisconnected) {
return DEAD_OBJECT;
}
if (!mHasControl) {
return INVALID_OPERATION;
}
if (!mEnabled) {
return NO_ERROR;
}
mEnabled = false;
if (effect->suspended()) {
return NO_ERROR;
}
status_t status = effect->setEnabled(false);
sp<ThreadBase> thread = effect->thread().promote();
if (thread != 0) {
thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
Mutex::Autolock _l(thread->mLock);
thread->broadcast_l();
}
}
return status;
}
void AudioFlinger::EffectHandle::disconnect()
{
ALOGV("%s %p", __FUNCTION__, this);
disconnect(true);
}
void AudioFlinger::EffectHandle::disconnect(bool unpinIfLast)
{
AutoMutex _l(mLock);
ALOGV("disconnect(%s) %p", unpinIfLast ? "true" : "false", this);
if (mDisconnected) {
if (unpinIfLast) {
android_errorWriteLog(0x534e4554, "32707507");
}
return;
}
mDisconnected = true;
sp<ThreadBase> thread;
{
sp<EffectModule> effect = mEffect.promote();
if (effect != 0) {
thread = effect->thread().promote();
}
}
if (thread != 0) {
thread->disconnectEffectHandle(this, unpinIfLast);
} else {
ALOGW("%s Effect handle %p disconnected after thread destruction", __FUNCTION__, this);
// try to cleanup as much as we can
sp<EffectModule> effect = mEffect.promote();
if (effect != 0) {
effect->disconnectHandle(this, unpinIfLast);
}
}
if (mClient != 0) {
if (mCblk != NULL) {
// unlike ~TrackBase(), mCblk is never a local new, so don't delete
mCblk->~effect_param_cblk_t(); // destroy our shared-structure.
}
mCblkMemory.clear(); // free the shared memory before releasing the heap it belongs to
// Client destructor must run with AudioFlinger client mutex locked
Mutex::Autolock _l(mClient->audioFlinger()->mClientLock);
mClient.clear();
}
}
status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode,
uint32_t cmdSize,
void *pCmdData,
uint32_t *replySize,
void *pReplyData)
{
ALOGVV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p",
cmdCode, mHasControl, mEffect.unsafe_get());
if (cmdCode == EFFECT_CMD_ENABLE) {
if (*replySize < sizeof(int)) {
android_errorWriteLog(0x534e4554, "32095713");
return BAD_VALUE;
}
*(int *)pReplyData = NO_ERROR;
*replySize = sizeof(int);
return enable();
} else if (cmdCode == EFFECT_CMD_DISABLE) {
if (*replySize < sizeof(int)) {
android_errorWriteLog(0x534e4554, "32095713");
return BAD_VALUE;
}
*(int *)pReplyData = NO_ERROR;
*replySize = sizeof(int);
return disable();
}
AutoMutex _l(mLock);
sp<EffectModule> effect = mEffect.promote();
if (effect == 0 || mDisconnected) {
return DEAD_OBJECT;
}
// only get parameter command is permitted for applications not controlling the effect
if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) {
return INVALID_OPERATION;
}
if (mClient == 0) {
return INVALID_OPERATION;
}
// handle commands that are not forwarded transparently to effect engine
if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) {
if (*replySize < sizeof(int)) {
android_errorWriteLog(0x534e4554, "32095713");
return BAD_VALUE;
}
*(int *)pReplyData = NO_ERROR;
*replySize = sizeof(int);
// No need to trylock() here as this function is executed in the binder thread serving a
// particular client process: no risk to block the whole media server process or mixer
// threads if we are stuck here
Mutex::Autolock _l(mCblk->lock);
// keep local copy of index in case of client corruption b/32220769
const uint32_t clientIndex = mCblk->clientIndex;
const uint32_t serverIndex = mCblk->serverIndex;
if (clientIndex > EFFECT_PARAM_BUFFER_SIZE ||
serverIndex > EFFECT_PARAM_BUFFER_SIZE) {
mCblk->serverIndex = 0;
mCblk->clientIndex = 0;
return BAD_VALUE;
}
status_t status = NO_ERROR;
effect_param_t *param = NULL;
for (uint32_t index = serverIndex; index < clientIndex;) {
int *p = (int *)(mBuffer + index);
const int size = *p++;
if (size < 0
|| size > EFFECT_PARAM_BUFFER_SIZE
|| ((uint8_t *)p + size) > mBuffer + clientIndex) {
ALOGW("command(): invalid parameter block size");
status = BAD_VALUE;
break;
}
// copy to local memory in case of client corruption b/32220769
param = (effect_param_t *)realloc(param, size);
if (param == NULL) {
ALOGW("command(): out of memory");
status = NO_MEMORY;
break;
}
memcpy(param, p, size);
int reply = 0;
uint32_t rsize = sizeof(reply);
status_t ret = effect->command(EFFECT_CMD_SET_PARAM,
size,
param,
&rsize,
&reply);
// verify shared memory: server index shouldn't change; client index can't go back.
if (serverIndex != mCblk->serverIndex
|| clientIndex > mCblk->clientIndex) {
android_errorWriteLog(0x534e4554, "32220769");
status = BAD_VALUE;
break;
}
// stop at first error encountered
if (ret != NO_ERROR) {
status = ret;
*(int *)pReplyData = reply;
break;
} else if (reply != NO_ERROR) {
*(int *)pReplyData = reply;
break;
}
index += size;
}
free(param);
mCblk->serverIndex = 0;
mCblk->clientIndex = 0;
return status;
}
return effect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
}
void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled)
{
ALOGV("setControl %p control %d", this, hasControl);
mHasControl = hasControl;
mEnabled = enabled;
if (signal && mEffectClient != 0) {
mEffectClient->controlStatusChanged(hasControl);
}
}
void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode,
uint32_t cmdSize,
void *pCmdData,
uint32_t replySize,
void *pReplyData)
{
if (mEffectClient != 0) {
mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
}
}
void AudioFlinger::EffectHandle::setEnabled(bool enabled)
{
if (mEffectClient != 0) {
mEffectClient->enableStatusChanged(enabled);
}
}
status_t AudioFlinger::EffectHandle::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
return BnEffect::onTransact(code, data, reply, flags);
}
void AudioFlinger::EffectHandle::dumpToBuffer(char* buffer, size_t size)
{
bool locked = mCblk != NULL && AudioFlinger::dumpTryLock(mCblk->lock);
snprintf(buffer, size, "\t\t\t%5d %5d %3s %3s %5u %5u\n",
(mClient == 0) ? getpid_cached : mClient->pid(),
mPriority,
mHasControl ? "yes" : "no",
locked ? "yes" : "no",
mCblk ? mCblk->clientIndex : 0,
mCblk ? mCblk->serverIndex : 0
);
if (locked) {
mCblk->lock.unlock();
}
}
#undef LOG_TAG
#define LOG_TAG "AudioFlinger::EffectChain"
AudioFlinger::EffectChain::EffectChain(ThreadBase *thread,
audio_session_t sessionId)
: mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX)
{
mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
if (thread == NULL) {
return;
}
mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) /
thread->frameCount();
}
AudioFlinger::EffectChain::~EffectChain()
{
}
// getEffectFromDesc_l() must be called with ThreadBase::mLock held
sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(
effect_descriptor_t *descriptor)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) {
return mEffects[i];
}
}
return 0;
}
// getEffectFromId_l() must be called with ThreadBase::mLock held
sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
// by convention, return first effect if id provided is 0 (0 is never a valid id)
if (id == 0 || mEffects[i]->id() == id) {
return mEffects[i];
}
}
return 0;
}
// getEffectFromType_l() must be called with ThreadBase::mLock held
sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l(
const effect_uuid_t *type)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) {
return mEffects[i];
}
}
return 0;
}
void AudioFlinger::EffectChain::clearInputBuffer()
{
Mutex::Autolock _l(mLock);
sp<ThreadBase> thread = mThread.promote();
if (thread == 0) {
ALOGW("clearInputBuffer(): cannot promote mixer thread");
return;
}
clearInputBuffer_l(thread);
}
// Must be called with EffectChain::mLock locked
void AudioFlinger::EffectChain::clearInputBuffer_l(const sp<ThreadBase>& thread)
{
if (mInBuffer == NULL) {
return;
}
// TODO: This will change in the future, depending on multichannel
// and sample format changes for effects.
// Currently effects processing is only available for stereo, AUDIO_FORMAT_PCM_16_BIT
// (4 bytes frame size)
const size_t frameSize =
audio_bytes_per_sample(AUDIO_FORMAT_PCM_16_BIT) * min(FCC_2, thread->channelCount());
memset(mInBuffer->audioBuffer()->raw, 0, thread->frameCount() * frameSize);
mInBuffer->commit();
}
// Must be called with EffectChain::mLock locked
void AudioFlinger::EffectChain::process_l()
{
sp<ThreadBase> thread = mThread.promote();
if (thread == 0) {
ALOGW("process_l(): cannot promote mixer thread");
return;
}
bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) ||
(mSessionId == AUDIO_SESSION_OUTPUT_STAGE);
// never process effects when:
// - on an OFFLOAD thread
// - no more tracks are on the session and the effect tail has been rendered
bool doProcess = (thread->type() != ThreadBase::OFFLOAD)
&& (thread->type() != ThreadBase::MMAP);
if (!isGlobalSession) {
bool tracksOnSession = (trackCnt() != 0);
if (!tracksOnSession && mTailBufferCount == 0) {
doProcess = false;
}
if (activeTrackCnt() == 0) {
// if no track is active and the effect tail has not been rendered,
// the input buffer must be cleared here as the mixer process will not do it
if (tracksOnSession || mTailBufferCount > 0) {
clearInputBuffer_l(thread);
if (mTailBufferCount > 0) {
mTailBufferCount--;
}
}
}
}
size_t size = mEffects.size();
if (doProcess) {
// Only the input and output buffers of the chain can be external,
// and 'update' / 'commit' do nothing for allocated buffers, thus
// it's not needed to consider any other buffers here.
mInBuffer->update();
if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
mOutBuffer->update();
}
for (size_t i = 0; i < size; i++) {
mEffects[i]->process();
}
mInBuffer->commit();
if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
mOutBuffer->commit();
}
}
bool doResetVolume = false;
for (size_t i = 0; i < size; i++) {
doResetVolume = mEffects[i]->updateState() || doResetVolume;
}
if (doResetVolume) {
resetVolume_l();
}
}
// createEffect_l() must be called with ThreadBase::mLock held
status_t AudioFlinger::EffectChain::createEffect_l(sp<EffectModule>& effect,
ThreadBase *thread,
effect_descriptor_t *desc,
int id,
audio_session_t sessionId,
bool pinned)
{
Mutex::Autolock _l(mLock);
effect = new EffectModule(thread, this, desc, id, sessionId, pinned);
status_t lStatus = effect->status();
if (lStatus == NO_ERROR) {
lStatus = addEffect_ll(effect);
}
if (lStatus != NO_ERROR) {
effect.clear();
}
return lStatus;
}
// addEffect_l() must be called with ThreadBase::mLock held
status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect)
{
Mutex::Autolock _l(mLock);
return addEffect_ll(effect);
}
// addEffect_l() must be called with ThreadBase::mLock and EffectChain::mLock held
status_t AudioFlinger::EffectChain::addEffect_ll(const sp<EffectModule>& effect)
{
effect_descriptor_t desc = effect->desc();
uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK;
effect->setChain(this);
sp<ThreadBase> thread = mThread.promote();
if (thread == 0) {
return NO_INIT;
}
effect->setThread(thread);
if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
// Auxiliary effects are inserted at the beginning of mEffects vector as
// they are processed first and accumulated in chain input buffer
mEffects.insertAt(effect, 0);
// the input buffer for auxiliary effect contains mono samples in
// 32 bit format. This is to avoid saturation in AudoMixer
// accumulation stage. Saturation is done in EffectModule::process() before
// calling the process in effect engine
size_t numSamples = thread->frameCount();
sp<EffectBufferHalInterface> halBuffer;
status_t result = EffectBufferHalInterface::allocate(
numSamples * sizeof(int32_t), &halBuffer);
if (result != OK) return result;
effect->setInBuffer(halBuffer);
// auxiliary effects output samples to chain input buffer for further processing
// by insert effects
effect->setOutBuffer(mInBuffer);
} else {
// Insert effects are inserted at the end of mEffects vector as they are processed
// after track and auxiliary effects.
// Insert effect order as a function of indicated preference:
// if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if
// another effect is present
// else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the
// last effect claiming first position
// else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the
// first effect claiming last position
// else if EFFECT_FLAG_INSERT_ANY insert after first or before last
// Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is
// already present
size_t size = mEffects.size();
size_t idx_insert = size;
ssize_t idx_insert_first = -1;
ssize_t idx_insert_last = -1;
for (size_t i = 0; i < size; i++) {
effect_descriptor_t d = mEffects[i]->desc();
uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK;
uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK;
if (iMode == EFFECT_FLAG_TYPE_INSERT) {
// check invalid effect chaining combinations
if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE ||
iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) {
ALOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s",
desc.name, d.name);
return INVALID_OPERATION;
}
// remember position of first insert effect and by default
// select this as insert position for new effect
if (idx_insert == size) {
idx_insert = i;
}
// remember position of last insert effect claiming
// first position
if (iPref == EFFECT_FLAG_INSERT_FIRST) {
idx_insert_first = i;
}
// remember position of first insert effect claiming
// last position
if (iPref == EFFECT_FLAG_INSERT_LAST &&
idx_insert_last == -1) {
idx_insert_last = i;
}
}
}
// modify idx_insert from first position if needed
if (insertPref == EFFECT_FLAG_INSERT_LAST) {
if (idx_insert_last != -1) {
idx_insert = idx_insert_last;
} else {
idx_insert = size;
}
} else {
if (idx_insert_first != -1) {
idx_insert = idx_insert_first + 1;
}
}
// always read samples from chain input buffer
effect->setInBuffer(mInBuffer);
// if last effect in the chain, output samples to chain
// output buffer, otherwise to chain input buffer
if (idx_insert == size) {
if (idx_insert != 0) {
mEffects[idx_insert-1]->setOutBuffer(mInBuffer);
mEffects[idx_insert-1]->configure();
}
effect->setOutBuffer(mOutBuffer);
} else {
effect->setOutBuffer(mInBuffer);
}
mEffects.insertAt(effect, idx_insert);
ALOGV("addEffect_l() effect %p, added in chain %p at rank %zu", effect.get(), this,
idx_insert);
}
effect->configure();
return NO_ERROR;
}
// removeEffect_l() must be called with ThreadBase::mLock held
size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect,
bool release)
{
Mutex::Autolock _l(mLock);
size_t size = mEffects.size();
uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK;
for (size_t i = 0; i < size; i++) {
if (effect == mEffects[i]) {
// calling stop here will remove pre-processing effect from the audio HAL.
// This is safe as we hold the EffectChain mutex which guarantees that we are not in
// the middle of a read from audio HAL
if (mEffects[i]->state() == EffectModule::ACTIVE ||
mEffects[i]->state() == EffectModule::STOPPING) {
mEffects[i]->stop();
}
if (release) {
mEffects[i]->release_l();
}
if (type != EFFECT_FLAG_TYPE_AUXILIARY) {
if (i == size - 1 && i != 0) {
mEffects[i - 1]->setOutBuffer(mOutBuffer);
mEffects[i - 1]->configure();
}
}
mEffects.removeAt(i);
ALOGV("removeEffect_l() effect %p, removed from chain %p at rank %zu", effect.get(),
this, i);
break;
}
}
return mEffects.size();
}
// setDevice_l() must be called with ThreadBase::mLock held
void AudioFlinger::EffectChain::setDevice_l(audio_devices_t device)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
mEffects[i]->setDevice(device);
}
}
// setMode_l() must be called with ThreadBase::mLock held
void AudioFlinger::EffectChain::setMode_l(audio_mode_t mode)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
mEffects[i]->setMode(mode);
}
}
// setAudioSource_l() must be called with ThreadBase::mLock held
void AudioFlinger::EffectChain::setAudioSource_l(audio_source_t source)
{
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
mEffects[i]->setAudioSource(source);
}
}
// setVolume_l() must be called with ThreadBase::mLock or EffectChain::mLock held
bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right, bool force)
{
uint32_t newLeft = *left;
uint32_t newRight = *right;
bool hasControl = false;
int ctrlIdx = -1;
size_t size = mEffects.size();
// first update volume controller
for (size_t i = size; i > 0; i--) {
if (mEffects[i - 1]->isProcessEnabled() &&
(mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) {
ctrlIdx = i - 1;
hasControl = true;
break;
}
}
if (!force && ctrlIdx == mVolumeCtrlIdx &&
*left == mLeftVolume && *right == mRightVolume) {
if (hasControl) {
*left = mNewLeftVolume;
*right = mNewRightVolume;
}
return hasControl;
}
mVolumeCtrlIdx = ctrlIdx;
mLeftVolume = newLeft;
mRightVolume = newRight;
// second get volume update from volume controller
if (ctrlIdx >= 0) {
mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true);
mNewLeftVolume = newLeft;
mNewRightVolume = newRight;
}
// then indicate volume to all other effects in chain.
// Pass altered volume to effects before volume controller
// and requested volume to effects after controller
uint32_t lVol = newLeft;
uint32_t rVol = newRight;
for (size_t i = 0; i < size; i++) {
if ((int)i == ctrlIdx) {
continue;
}
// this also works for ctrlIdx == -1 when there is no volume controller
if ((int)i > ctrlIdx) {
lVol = *left;
rVol = *right;
}
mEffects[i]->setVolume(&lVol, &rVol, false);
}
*left = newLeft;
*right = newRight;
return hasControl;
}
// resetVolume_l() must be called with ThreadBase::mLock or EffectChain::mLock held
void AudioFlinger::EffectChain::resetVolume_l()
{
if ((mLeftVolume != UINT_MAX) && (mRightVolume != UINT_MAX)) {
uint32_t left = mLeftVolume;
uint32_t right = mRightVolume;
(void)setVolume_l(&left, &right, true);
}
}
void AudioFlinger::EffectChain::syncHalEffectsState()
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mEffects.size(); i++) {
if (mEffects[i]->state() == EffectModule::ACTIVE ||
mEffects[i]->state() == EffectModule::STOPPING) {
mEffects[i]->addEffectToHal_l();
}
}
}
static void dumpInOutBuffer(
char *dump, size_t dumpSize, bool isInput, EffectBufferHalInterface *buffer) {
if (buffer == nullptr) {
snprintf(dump, dumpSize, "%p", buffer);
} else if (buffer->externalData() != nullptr) {
snprintf(dump, dumpSize, "%p -> %p",
isInput ? buffer->externalData() : buffer->audioBuffer()->raw,
isInput ? buffer->audioBuffer()->raw : buffer->externalData());
} else {
snprintf(dump, dumpSize, "%p", buffer->audioBuffer()->raw);
}
}
void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
size_t numEffects = mEffects.size();
snprintf(buffer, SIZE, " %zu effects for session %d\n", numEffects, mSessionId);
result.append(buffer);
if (numEffects) {
bool locked = AudioFlinger::dumpTryLock(mLock);
// failed to lock - AudioFlinger is probably deadlocked
if (!locked) {
result.append("\tCould not lock mutex:\n");
}
char inBufferStr[64], outBufferStr[64];
dumpInOutBuffer(inBufferStr, sizeof(inBufferStr), true, mInBuffer.get());
dumpInOutBuffer(outBufferStr, sizeof(outBufferStr), false, mOutBuffer.get());
snprintf(buffer, SIZE, "\t%-*s%-*s Active tracks:\n",
(int)strlen(inBufferStr), "In buffer ",
(int)strlen(outBufferStr), "Out buffer ");
result.append(buffer);
snprintf(buffer, SIZE, "\t%s %s %d\n", inBufferStr, outBufferStr, mActiveTrackCnt);
result.append(buffer);
write(fd, result.string(), result.size());
for (size_t i = 0; i < numEffects; ++i) {
sp<EffectModule> effect = mEffects[i];
if (effect != 0) {
effect->dump(fd, args);
}
}
if (locked) {
mLock.unlock();
}
}
}
// must be called with ThreadBase::mLock held
void AudioFlinger::EffectChain::setEffectSuspended_l(
const effect_uuid_t *type, bool suspend)
{
sp<SuspendedEffectDesc> desc;
// use effect type UUID timelow as key as there is no real risk of identical
// timeLow fields among effect type UUIDs.
ssize_t index = mSuspendedEffects.indexOfKey(type->timeLow);
if (suspend) {
if (index >= 0) {
desc = mSuspendedEffects.valueAt(index);
} else {
desc = new SuspendedEffectDesc();
desc->mType = *type;
mSuspendedEffects.add(type->timeLow, desc);
ALOGV("setEffectSuspended_l() add entry for %08x", type->timeLow);
}
if (desc->mRefCount++ == 0) {
sp<EffectModule> effect = getEffectIfEnabled(type);
if (effect != 0) {
desc->mEffect = effect;
effect->setSuspended(true);
effect->setEnabled(false);
}
}
} else {
if (index < 0) {
return;
}
desc = mSuspendedEffects.valueAt(index);
if (desc->mRefCount <= 0) {
ALOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount);
desc->mRefCount = 1;
}
if (--desc->mRefCount == 0) {
ALOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index));
if (desc->mEffect != 0) {
sp<EffectModule> effect = desc->mEffect.promote();
if (effect != 0) {
effect->setSuspended(false);
effect->lock();
EffectHandle *handle = effect->controlHandle_l();
if (handle != NULL && !handle->disconnected()) {
effect->setEnabled_l(handle->enabled());
}
effect->unlock();
}
desc->mEffect.clear();
}
mSuspendedEffects.removeItemsAt(index);
}
}
}
// must be called with ThreadBase::mLock held
void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend)
{
sp<SuspendedEffectDesc> desc;
ssize_t index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll);
if (suspend) {
if (index >= 0) {
desc = mSuspendedEffects.valueAt(index);
} else {
desc = new SuspendedEffectDesc();
mSuspendedEffects.add((int)kKeyForSuspendAll, desc);
ALOGV("setEffectSuspendedAll_l() add entry for 0");
}
if (desc->mRefCount++ == 0) {
Vector< sp<EffectModule> > effects;
getSuspendEligibleEffects(effects);
for (size_t i = 0; i < effects.size(); i++) {
setEffectSuspended_l(&effects[i]->desc().type, true);
}
}
} else {
if (index < 0) {
return;
}
desc = mSuspendedEffects.valueAt(index);
if (desc->mRefCount <= 0) {
ALOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount);
desc->mRefCount = 1;
}
if (--desc->mRefCount == 0) {
Vector<const effect_uuid_t *> types;
for (size_t i = 0; i < mSuspendedEffects.size(); i++) {
if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) {
continue;
}
types.add(&mSuspendedEffects.valueAt(i)->mType);
}
for (size_t i = 0; i < types.size(); i++) {
setEffectSuspended_l(types[i], false);
}
ALOGV("setEffectSuspendedAll_l() remove entry for %08x",
mSuspendedEffects.keyAt(index));
mSuspendedEffects.removeItem((int)kKeyForSuspendAll);
}
}
}
// The volume effect is used for automated tests only
#ifndef OPENSL_ES_H_
static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6,
{ 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
const effect_uuid_t * const SL_IID_VOLUME = &SL_IID_VOLUME_;
#endif //OPENSL_ES_H_
bool AudioFlinger::EffectChain::isEffectEligibleForSuspend(const effect_descriptor_t& desc)
{
// auxiliary effects and visualizer are never suspended on output mix
if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) &&
(((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) ||
(memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) ||
(memcmp(&desc.type, SL_IID_VOLUME, sizeof(effect_uuid_t)) == 0))) {
return false;
}
return true;
}
void AudioFlinger::EffectChain::getSuspendEligibleEffects(
Vector< sp<AudioFlinger::EffectModule> > &effects)
{
effects.clear();
for (size_t i = 0; i < mEffects.size(); i++) {
if (isEffectEligibleForSuspend(mEffects[i]->desc())) {
effects.add(mEffects[i]);
}
}
}
sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled(
const effect_uuid_t *type)
{
sp<EffectModule> effect = getEffectFromType_l(type);
return effect != 0 && effect->isEnabled() ? effect : 0;
}
void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
bool enabled)
{
ssize_t index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow);
if (enabled) {
if (index < 0) {
// if the effect is not suspend check if all effects are suspended
index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll);
if (index < 0) {
return;
}
if (!isEffectEligibleForSuspend(effect->desc())) {
return;
}
setEffectSuspended_l(&effect->desc().type, enabled);
index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow);
if (index < 0) {
ALOGW("checkSuspendOnEffectEnabled() Fx should be suspended here!");
return;
}
}
ALOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x",
effect->desc().type.timeLow);
sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index);
// if effect is requested to suspended but was not yet enabled, supend it now.
if (desc->mEffect == 0) {
desc->mEffect = effect;
effect->setEnabled(false);
effect->setSuspended(true);
}
} else {
if (index < 0) {
return;
}
ALOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x",
effect->desc().type.timeLow);
sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index);
desc->mEffect.clear();
effect->setSuspended(false);
}
}
bool AudioFlinger::EffectChain::isNonOffloadableEnabled()
{
Mutex::Autolock _l(mLock);
size_t size = mEffects.size();
for (size_t i = 0; i < size; i++) {
if (mEffects[i]->isEnabled() && !mEffects[i]->isOffloadable()) {
return true;
}
}
return false;
}
void AudioFlinger::EffectChain::setThread(const sp<ThreadBase>& thread)
{
Mutex::Autolock _l(mLock);
mThread = thread;
for (size_t i = 0; i < mEffects.size(); i++) {
mEffects[i]->setThread(thread);
}
}
void AudioFlinger::EffectChain::checkOutputFlagCompatibility(audio_output_flags_t *flags) const
{
if ((*flags & AUDIO_OUTPUT_FLAG_RAW) != 0 && !isRawCompatible()) {
*flags = (audio_output_flags_t)(*flags & ~AUDIO_OUTPUT_FLAG_RAW);
}
if ((*flags & AUDIO_OUTPUT_FLAG_FAST) != 0 && !isFastCompatible()) {
*flags = (audio_output_flags_t)(*flags & ~AUDIO_OUTPUT_FLAG_FAST);
}
}
void AudioFlinger::EffectChain::checkInputFlagCompatibility(audio_input_flags_t *flags) const
{
if ((*flags & AUDIO_INPUT_FLAG_RAW) != 0 && !isRawCompatible()) {
*flags = (audio_input_flags_t)(*flags & ~AUDIO_INPUT_FLAG_RAW);
}
if ((*flags & AUDIO_INPUT_FLAG_FAST) != 0 && !isFastCompatible()) {
*flags = (audio_input_flags_t)(*flags & ~AUDIO_INPUT_FLAG_FAST);
}
}
bool AudioFlinger::EffectChain::isRawCompatible() const
{
Mutex::Autolock _l(mLock);
for (const auto &effect : mEffects) {
if (effect->isProcessImplemented()) {
return false;
}
}
// Allow effects without processing.
return true;
}
bool AudioFlinger::EffectChain::isFastCompatible() const
{
Mutex::Autolock _l(mLock);
for (const auto &effect : mEffects) {
if (effect->isProcessImplemented()
&& effect->isImplementationSoftware()) {
return false;
}
}
// Allow effects without processing or hw accelerated effects.
return true;
}
// isCompatibleWithThread_l() must be called with thread->mLock held
bool AudioFlinger::EffectChain::isCompatibleWithThread_l(const sp<ThreadBase>& thread) const
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mEffects.size(); i++) {
if (thread->checkEffectCompatibility_l(&(mEffects[i]->desc()), mSessionId) != NO_ERROR) {
return false;
}
}
return true;
}
} // namespace android