blob: 2ed50e8242580adb44428d77a8046f89b5d459d8 [file] [log] [blame]
/*
* Copyright (C) 2006-2007 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 "AudioSystem"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include <binder/IServiceManager.h>
#include <media/AudioSystem.h>
#include <media/IAudioFlinger.h>
#include <media/IAudioPolicyService.h>
#include <math.h>
#include <system/audio.h>
// ----------------------------------------------------------------------------
namespace android {
// client singleton for AudioFlinger binder interface
Mutex AudioSystem::gLock;
Mutex AudioSystem::gLockCache;
Mutex AudioSystem::gLockAPS;
sp<IAudioFlinger> AudioSystem::gAudioFlinger;
sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
// Cached values for output handles
DefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(NULL);
// Cached values for recording queries, all protected by gLock
uint32_t AudioSystem::gPrevInSamplingRate;
audio_format_t AudioSystem::gPrevInFormat;
audio_channel_mask_t AudioSystem::gPrevInChannelMask;
size_t AudioSystem::gInBuffSize = 0; // zero indicates cache is invalid
// establish binder interface to AudioFlinger service
const sp<IAudioFlinger> AudioSystem::get_audio_flinger()
{
sp<IAudioFlinger> af;
sp<AudioFlingerClient> afc;
{
Mutex::Autolock _l(gLock);
if (gAudioFlinger == 0) {
sp<IServiceManager> sm = defaultServiceManager();
sp<IBinder> binder;
do {
binder = sm->getService(String16("media.audio_flinger"));
if (binder != 0)
break;
ALOGW("AudioFlinger not published, waiting...");
usleep(500000); // 0.5 s
} while (true);
if (gAudioFlingerClient == NULL) {
gAudioFlingerClient = new AudioFlingerClient();
} else {
if (gAudioErrorCallback) {
gAudioErrorCallback(NO_ERROR);
}
}
binder->linkToDeath(gAudioFlingerClient);
gAudioFlinger = interface_cast<IAudioFlinger>(binder);
LOG_ALWAYS_FATAL_IF(gAudioFlinger == 0);
afc = gAudioFlingerClient;
}
af = gAudioFlinger;
}
if (afc != 0) {
af->registerClient(afc);
}
return af;
}
/* static */ status_t AudioSystem::checkAudioFlinger()
{
if (defaultServiceManager()->checkService(String16("media.audio_flinger")) != 0) {
return NO_ERROR;
}
return DEAD_OBJECT;
}
status_t AudioSystem::muteMicrophone(bool state)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->setMicMute(state);
}
status_t AudioSystem::isMicrophoneMuted(bool* state)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
*state = af->getMicMute();
return NO_ERROR;
}
status_t AudioSystem::setMasterVolume(float value)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
af->setMasterVolume(value);
return NO_ERROR;
}
status_t AudioSystem::setMasterMute(bool mute)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
af->setMasterMute(mute);
return NO_ERROR;
}
status_t AudioSystem::getMasterVolume(float* volume)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
*volume = af->masterVolume();
return NO_ERROR;
}
status_t AudioSystem::getMasterMute(bool* mute)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
*mute = af->masterMute();
return NO_ERROR;
}
status_t AudioSystem::setStreamVolume(audio_stream_type_t stream, float value,
audio_io_handle_t output)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
af->setStreamVolume(stream, value, output);
return NO_ERROR;
}
status_t AudioSystem::setStreamMute(audio_stream_type_t stream, bool mute)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
af->setStreamMute(stream, mute);
return NO_ERROR;
}
status_t AudioSystem::getStreamVolume(audio_stream_type_t stream, float* volume,
audio_io_handle_t output)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
*volume = af->streamVolume(stream, output);
return NO_ERROR;
}
status_t AudioSystem::getStreamMute(audio_stream_type_t stream, bool* mute)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
*mute = af->streamMute(stream);
return NO_ERROR;
}
status_t AudioSystem::setMode(audio_mode_t mode)
{
if (uint32_t(mode) >= AUDIO_MODE_CNT) return BAD_VALUE;
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->setMode(mode);
}
status_t AudioSystem::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->setParameters(ioHandle, keyValuePairs);
}
String8 AudioSystem::getParameters(audio_io_handle_t ioHandle, const String8& keys)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
String8 result = String8("");
if (af == 0) return result;
result = af->getParameters(ioHandle, keys);
return result;
}
status_t AudioSystem::setParameters(const String8& keyValuePairs)
{
return setParameters(AUDIO_IO_HANDLE_NONE, keyValuePairs);
}
String8 AudioSystem::getParameters(const String8& keys)
{
return getParameters(AUDIO_IO_HANDLE_NONE, keys);
}
// convert volume steps to natural log scale
// change this value to change volume scaling
static const float dBPerStep = 0.5f;
// shouldn't need to touch these
static const float dBConvert = -dBPerStep * 2.302585093f / 20.0f;
static const float dBConvertInverse = 1.0f / dBConvert;
float AudioSystem::linearToLog(int volume)
{
// float v = volume ? exp(float(100 - volume) * dBConvert) : 0;
// ALOGD("linearToLog(%d)=%f", volume, v);
// return v;
return volume ? exp(float(100 - volume) * dBConvert) : 0;
}
int AudioSystem::logToLinear(float volume)
{
// int v = volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
// ALOGD("logTolinear(%d)=%f", v, volume);
// return v;
return volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
}
status_t AudioSystem::getOutputSamplingRate(uint32_t* samplingRate, audio_stream_type_t streamType)
{
audio_io_handle_t output;
if (streamType == AUDIO_STREAM_DEFAULT) {
streamType = AUDIO_STREAM_MUSIC;
}
output = getOutput(streamType);
if (output == 0) {
return PERMISSION_DENIED;
}
return getSamplingRate(output, samplingRate);
}
status_t AudioSystem::getSamplingRate(audio_io_handle_t output,
uint32_t* samplingRate)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
Mutex::Autolock _l(gLockCache);
OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);
if (outputDesc == NULL) {
ALOGV("getOutputSamplingRate() no output descriptor for output %d in gOutputs", output);
gLockCache.unlock();
*samplingRate = af->sampleRate(output);
gLockCache.lock();
} else {
ALOGV("getOutputSamplingRate() reading from output desc");
*samplingRate = outputDesc->samplingRate;
}
if (*samplingRate == 0) {
ALOGE("AudioSystem::getSamplingRate failed for output %d", output);
return BAD_VALUE;
}
ALOGV("getSamplingRate() output %d, sampling rate %u", output, *samplingRate);
return NO_ERROR;
}
status_t AudioSystem::getOutputFrameCount(size_t* frameCount, audio_stream_type_t streamType)
{
audio_io_handle_t output;
if (streamType == AUDIO_STREAM_DEFAULT) {
streamType = AUDIO_STREAM_MUSIC;
}
output = getOutput(streamType);
if (output == AUDIO_IO_HANDLE_NONE) {
return PERMISSION_DENIED;
}
return getFrameCount(output, frameCount);
}
status_t AudioSystem::getFrameCount(audio_io_handle_t output,
size_t* frameCount)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
Mutex::Autolock _l(gLockCache);
OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);
if (outputDesc == NULL) {
gLockCache.unlock();
*frameCount = af->frameCount(output);
gLockCache.lock();
} else {
*frameCount = outputDesc->frameCount;
}
if (*frameCount == 0) {
ALOGE("AudioSystem::getFrameCount failed for output %d", output);
return BAD_VALUE;
}
ALOGV("getFrameCount() output %d, frameCount %zu", output, *frameCount);
return NO_ERROR;
}
status_t AudioSystem::getOutputLatency(uint32_t* latency, audio_stream_type_t streamType)
{
audio_io_handle_t output;
if (streamType == AUDIO_STREAM_DEFAULT) {
streamType = AUDIO_STREAM_MUSIC;
}
output = getOutput(streamType);
if (output == AUDIO_IO_HANDLE_NONE) {
return PERMISSION_DENIED;
}
return getLatency(output, latency);
}
status_t AudioSystem::getLatency(audio_io_handle_t output,
uint32_t* latency)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
Mutex::Autolock _l(gLockCache);
OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);
if (outputDesc == NULL) {
gLockCache.unlock();
*latency = af->latency(output);
gLockCache.lock();
} else {
*latency = outputDesc->latency;
}
ALOGV("getLatency() output %d, latency %d", output, *latency);
return NO_ERROR;
}
status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
audio_channel_mask_t channelMask, size_t* buffSize)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) {
return PERMISSION_DENIED;
}
Mutex::Autolock _l(gLockCache);
// Do we have a stale gInBufferSize or are we requesting the input buffer size for new values
size_t inBuffSize = gInBuffSize;
if ((inBuffSize == 0) || (sampleRate != gPrevInSamplingRate) || (format != gPrevInFormat)
|| (channelMask != gPrevInChannelMask)) {
gLockCache.unlock();
inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
gLockCache.lock();
if (inBuffSize == 0) {
ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %x",
sampleRate, format, channelMask);
return BAD_VALUE;
}
// A benign race is possible here: we could overwrite a fresher cache entry
// save the request params
gPrevInSamplingRate = sampleRate;
gPrevInFormat = format;
gPrevInChannelMask = channelMask;
gInBuffSize = inBuffSize;
}
*buffSize = inBuffSize;
return NO_ERROR;
}
status_t AudioSystem::setVoiceVolume(float value)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->setVoiceVolume(value);
}
status_t AudioSystem::getRenderPosition(audio_io_handle_t output, uint32_t *halFrames,
uint32_t *dspFrames)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->getRenderPosition(halFrames, dspFrames, output);
}
uint32_t AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
uint32_t result = 0;
if (af == 0) return result;
if (ioHandle == AUDIO_IO_HANDLE_NONE) return result;
result = af->getInputFramesLost(ioHandle);
return result;
}
audio_unique_id_t AudioSystem::newAudioUniqueId()
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return AUDIO_UNIQUE_ID_ALLOCATE;
return af->newAudioUniqueId();
}
void AudioSystem::acquireAudioSessionId(int audioSession, pid_t pid)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af != 0) {
af->acquireAudioSessionId(audioSession, pid);
}
}
void AudioSystem::releaseAudioSessionId(int audioSession, pid_t pid)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af != 0) {
af->releaseAudioSessionId(audioSession, pid);
}
}
audio_hw_sync_t AudioSystem::getAudioHwSyncForSession(audio_session_t sessionId)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return AUDIO_HW_SYNC_INVALID;
return af->getAudioHwSyncForSession(sessionId);
}
// ---------------------------------------------------------------------------
void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who __unused)
{
audio_error_callback cb = NULL;
{
Mutex::Autolock _l(AudioSystem::gLock);
AudioSystem::gAudioFlinger.clear();
cb = gAudioErrorCallback;
}
{
// clear output handles and stream to output map caches
Mutex::Autolock _l(gLockCache);
AudioSystem::gOutputs.clear();
}
if (cb) {
cb(DEAD_OBJECT);
}
ALOGW("AudioFlinger server died!");
}
void AudioSystem::AudioFlingerClient::ioConfigChanged(int event, audio_io_handle_t ioHandle,
const void *param2) {
ALOGV("ioConfigChanged() event %d", event);
const OutputDescriptor *desc;
if (ioHandle == AUDIO_IO_HANDLE_NONE) return;
Mutex::Autolock _l(AudioSystem::gLockCache);
switch (event) {
case STREAM_CONFIG_CHANGED:
break;
case OUTPUT_OPENED: {
if (gOutputs.indexOfKey(ioHandle) >= 0) {
ALOGV("ioConfigChanged() opening already existing output! %d", ioHandle);
break;
}
if (param2 == NULL) break;
desc = (const OutputDescriptor *)param2;
OutputDescriptor *outputDesc = new OutputDescriptor(*desc);
gOutputs.add(ioHandle, outputDesc);
ALOGV("ioConfigChanged() new output samplingRate %u, format %#x channel mask %#x "
"frameCount %zu latency %d",
outputDesc->samplingRate, outputDesc->format, outputDesc->channelMask,
outputDesc->frameCount, outputDesc->latency);
} break;
case OUTPUT_CLOSED: {
if (gOutputs.indexOfKey(ioHandle) < 0) {
ALOGW("ioConfigChanged() closing unknown output! %d", ioHandle);
break;
}
ALOGV("ioConfigChanged() output %d closed", ioHandle);
gOutputs.removeItem(ioHandle);
} break;
case OUTPUT_CONFIG_CHANGED: {
int index = gOutputs.indexOfKey(ioHandle);
if (index < 0) {
ALOGW("ioConfigChanged() modifying unknown output! %d", ioHandle);
break;
}
if (param2 == NULL) break;
desc = (const OutputDescriptor *)param2;
ALOGV("ioConfigChanged() new config for output %d samplingRate %u, format %#x "
"channel mask %#x frameCount %zu latency %d",
ioHandle, desc->samplingRate, desc->format,
desc->channelMask, desc->frameCount, desc->latency);
OutputDescriptor *outputDesc = gOutputs.valueAt(index);
delete outputDesc;
outputDesc = new OutputDescriptor(*desc);
gOutputs.replaceValueFor(ioHandle, outputDesc);
} break;
case INPUT_OPENED:
case INPUT_CLOSED:
case INPUT_CONFIG_CHANGED:
break;
}
}
void AudioSystem::setErrorCallback(audio_error_callback cb)
{
Mutex::Autolock _l(gLock);
gAudioErrorCallback = cb;
}
// client singleton for AudioPolicyService binder interface
// protected by gLockAPS
sp<IAudioPolicyService> AudioSystem::gAudioPolicyService;
sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient;
// establish binder interface to AudioPolicy service
const sp<IAudioPolicyService> AudioSystem::get_audio_policy_service()
{
sp<IAudioPolicyService> ap;
sp<AudioPolicyServiceClient> apc;
{
Mutex::Autolock _l(gLockAPS);
if (gAudioPolicyService == 0) {
sp<IServiceManager> sm = defaultServiceManager();
sp<IBinder> binder;
do {
binder = sm->getService(String16("media.audio_policy"));
if (binder != 0)
break;
ALOGW("AudioPolicyService not published, waiting...");
usleep(500000); // 0.5 s
} while (true);
if (gAudioPolicyServiceClient == NULL) {
gAudioPolicyServiceClient = new AudioPolicyServiceClient();
}
binder->linkToDeath(gAudioPolicyServiceClient);
gAudioPolicyService = interface_cast<IAudioPolicyService>(binder);
LOG_ALWAYS_FATAL_IF(gAudioPolicyService == 0);
apc = gAudioPolicyServiceClient;
}
ap = gAudioPolicyService;
}
if (apc != 0) {
ap->registerClient(apc);
}
return ap;
}
// ---------------------------------------------------------------------------
status_t AudioSystem::setDeviceConnectionState(audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address,
const char *device_name)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
const char *address = "";
const char *name = "";
if (aps == 0) return PERMISSION_DENIED;
if (device_address != NULL) {
address = device_address;
}
if (device_name != NULL) {
name = device_name;
}
return aps->setDeviceConnectionState(device, state, address, name);
}
audio_policy_dev_state_t AudioSystem::getDeviceConnectionState(audio_devices_t device,
const char *device_address)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
return aps->getDeviceConnectionState(device, device_address);
}
status_t AudioSystem::setPhoneState(audio_mode_t state)
{
if (uint32_t(state) >= AUDIO_MODE_CNT) return BAD_VALUE;
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->setPhoneState(state);
}
status_t AudioSystem::setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->setForceUse(usage, config);
}
audio_policy_forced_cfg_t AudioSystem::getForceUse(audio_policy_force_use_t usage)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return AUDIO_POLICY_FORCE_NONE;
return aps->getForceUse(usage);
}
audio_io_handle_t AudioSystem::getOutput(audio_stream_type_t stream,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_output_flags_t flags,
const audio_offload_info_t *offloadInfo)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return 0;
return aps->getOutput(stream, samplingRate, format, channelMask, flags, offloadInfo);
}
status_t AudioSystem::getOutputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *output,
audio_session_t session,
audio_stream_type_t *stream,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_output_flags_t flags,
audio_port_handle_t selectedDeviceId,
const audio_offload_info_t *offloadInfo)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return NO_INIT;
return aps->getOutputForAttr(attr, output, session, stream,
samplingRate, format, channelMask,
flags, selectedDeviceId, offloadInfo);
}
status_t AudioSystem::startOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->startOutput(output, stream, session);
}
status_t AudioSystem::stopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->stopOutput(output, stream, session);
}
void AudioSystem::releaseOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return;
aps->releaseOutput(output, stream, session);
}
status_t AudioSystem::getInputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *input,
audio_session_t session,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_input_flags_t flags)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return NO_INIT;
return aps->getInputForAttr(attr, input, session, samplingRate, format, channelMask, flags);
}
status_t AudioSystem::startInput(audio_io_handle_t input,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->startInput(input, session);
}
status_t AudioSystem::stopInput(audio_io_handle_t input,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->stopInput(input, session);
}
void AudioSystem::releaseInput(audio_io_handle_t input,
audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return;
aps->releaseInput(input, session);
}
status_t AudioSystem::initStreamVolume(audio_stream_type_t stream,
int indexMin,
int indexMax)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->initStreamVolume(stream, indexMin, indexMax);
}
status_t AudioSystem::setStreamVolumeIndex(audio_stream_type_t stream,
int index,
audio_devices_t device)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->setStreamVolumeIndex(stream, index, device);
}
status_t AudioSystem::getStreamVolumeIndex(audio_stream_type_t stream,
int *index,
audio_devices_t device)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->getStreamVolumeIndex(stream, index, device);
}
uint32_t AudioSystem::getStrategyForStream(audio_stream_type_t stream)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return 0;
return aps->getStrategyForStream(stream);
}
audio_devices_t AudioSystem::getDevicesForStream(audio_stream_type_t stream)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return AUDIO_DEVICE_NONE;
return aps->getDevicesForStream(stream);
}
audio_io_handle_t AudioSystem::getOutputForEffect(const effect_descriptor_t *desc)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
// FIXME change return type to status_t, and return PERMISSION_DENIED here
if (aps == 0) return AUDIO_IO_HANDLE_NONE;
return aps->getOutputForEffect(desc);
}
status_t AudioSystem::registerEffect(const effect_descriptor_t *desc,
audio_io_handle_t io,
uint32_t strategy,
int session,
int id)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->registerEffect(desc, io, strategy, session, id);
}
status_t AudioSystem::unregisterEffect(int id)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->unregisterEffect(id);
}
status_t AudioSystem::setEffectEnabled(int id, bool enabled)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->setEffectEnabled(id, enabled);
}
status_t AudioSystem::isStreamActive(audio_stream_type_t stream, bool* state, uint32_t inPastMs)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
if (state == NULL) return BAD_VALUE;
*state = aps->isStreamActive(stream, inPastMs);
return NO_ERROR;
}
status_t AudioSystem::isStreamActiveRemotely(audio_stream_type_t stream, bool* state,
uint32_t inPastMs)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
if (state == NULL) return BAD_VALUE;
*state = aps->isStreamActiveRemotely(stream, inPastMs);
return NO_ERROR;
}
status_t AudioSystem::isSourceActive(audio_source_t stream, bool* state)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
if (state == NULL) return BAD_VALUE;
*state = aps->isSourceActive(stream);
return NO_ERROR;
}
uint32_t AudioSystem::getPrimaryOutputSamplingRate()
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return 0;
return af->getPrimaryOutputSamplingRate();
}
size_t AudioSystem::getPrimaryOutputFrameCount()
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return 0;
return af->getPrimaryOutputFrameCount();
}
status_t AudioSystem::setLowRamDevice(bool isLowRamDevice)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) return PERMISSION_DENIED;
return af->setLowRamDevice(isLowRamDevice);
}
void AudioSystem::clearAudioConfigCache()
{
// called by restoreTrack_l(), which needs new IAudioFlinger and IAudioPolicyService instances
ALOGV("clearAudioConfigCache()");
{
Mutex::Autolock _l(gLockCache);
gOutputs.clear();
}
{
Mutex::Autolock _l(gLock);
gAudioFlinger.clear();
}
{
Mutex::Autolock _l(gLockAPS);
gAudioPolicyService.clear();
}
}
bool AudioSystem::isOffloadSupported(const audio_offload_info_t& info)
{
ALOGV("isOffloadSupported()");
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return false;
return aps->isOffloadSupported(info);
}
status_t AudioSystem::listAudioPorts(audio_port_role_t role,
audio_port_type_t type,
unsigned int *num_ports,
struct audio_port *ports,
unsigned int *generation)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->listAudioPorts(role, type, num_ports, ports, generation);
}
status_t AudioSystem::getAudioPort(struct audio_port *port)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->getAudioPort(port);
}
status_t AudioSystem::createAudioPatch(const struct audio_patch *patch,
audio_patch_handle_t *handle)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->createAudioPatch(patch, handle);
}
status_t AudioSystem::releaseAudioPatch(audio_patch_handle_t handle)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->releaseAudioPatch(handle);
}
status_t AudioSystem::listAudioPatches(unsigned int *num_patches,
struct audio_patch *patches,
unsigned int *generation)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->listAudioPatches(num_patches, patches, generation);
}
status_t AudioSystem::setAudioPortConfig(const struct audio_port_config *config)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->setAudioPortConfig(config);
}
status_t AudioSystem::addAudioPortCallback(const sp<AudioPortCallback>& callBack)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
Mutex::Autolock _l(gLockAPS);
if (gAudioPolicyServiceClient == 0) {
return NO_INIT;
}
return gAudioPolicyServiceClient->addAudioPortCallback(callBack);
}
status_t AudioSystem::removeAudioPortCallback(const sp<AudioPortCallback>& callBack)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
Mutex::Autolock _l(gLockAPS);
if (gAudioPolicyServiceClient == 0) {
return NO_INIT;
}
return gAudioPolicyServiceClient->removeAudioPortCallback(callBack);
}
status_t AudioSystem::acquireSoundTriggerSession(audio_session_t *session,
audio_io_handle_t *ioHandle,
audio_devices_t *device)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->acquireSoundTriggerSession(session, ioHandle, device);
}
status_t AudioSystem::releaseSoundTriggerSession(audio_session_t session)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->releaseSoundTriggerSession(session);
}
audio_mode_t AudioSystem::getPhoneState()
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return AUDIO_MODE_INVALID;
return aps->getPhoneState();
}
status_t AudioSystem::registerPolicyMixes(Vector<AudioMix> mixes, bool registration)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->registerPolicyMixes(mixes, registration);
}
status_t AudioSystem::startAudioSource(const struct audio_port_config *source,
const audio_attributes_t *attributes,
audio_io_handle_t *handle)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->startAudioSource(source, attributes, handle);
}
status_t AudioSystem::stopAudioSource(audio_io_handle_t handle)
{
const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
if (aps == 0) return PERMISSION_DENIED;
return aps->stopAudioSource(handle);
}
// ---------------------------------------------------------------------------
status_t AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(
const sp<AudioPortCallback>& callBack)
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
if (mAudioPortCallbacks[i] == callBack) {
return INVALID_OPERATION;
}
}
mAudioPortCallbacks.add(callBack);
return NO_ERROR;
}
status_t AudioSystem::AudioPolicyServiceClient::removeAudioPortCallback(
const sp<AudioPortCallback>& callBack)
{
Mutex::Autolock _l(mLock);
size_t i;
for (i = 0; i < mAudioPortCallbacks.size(); i++) {
if (mAudioPortCallbacks[i] == callBack) {
break;
}
}
if (i == mAudioPortCallbacks.size()) {
return INVALID_OPERATION;
}
mAudioPortCallbacks.removeAt(i);
return NO_ERROR;
}
void AudioSystem::AudioPolicyServiceClient::onAudioPortListUpdate()
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
mAudioPortCallbacks[i]->onAudioPortListUpdate();
}
}
void AudioSystem::AudioPolicyServiceClient::onAudioPatchListUpdate()
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
mAudioPortCallbacks[i]->onAudioPatchListUpdate();
}
}
void AudioSystem::AudioPolicyServiceClient::onDynamicPolicyMixStateUpdate(
String8 regId, int32_t state)
{
ALOGV("TODO propagate onDynamicPolicyMixStateUpdate(%s, %d)", regId.string(), state);
}
void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who __unused)
{
{
Mutex::Autolock _l(mLock);
for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
mAudioPortCallbacks[i]->onServiceDied();
}
}
{
Mutex::Autolock _l(gLockAPS);
AudioSystem::gAudioPolicyService.clear();
}
ALOGW("AudioPolicyService server died!");
}
} // namespace android