| /* |
| * 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; |
| sp<IAudioFlinger> AudioSystem::gAudioFlinger; |
| sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient; |
| audio_error_callback AudioSystem::gAudioErrorCallback = NULL; |
| // Cached values |
| |
| DefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(0); |
| |
| // Cached values for recording queries, all protected by gLock |
| uint32_t AudioSystem::gPrevInSamplingRate = 16000; |
| audio_format_t AudioSystem::gPrevInFormat = AUDIO_FORMAT_PCM_16_BIT; |
| audio_channel_mask_t AudioSystem::gPrevInChannelMask = AUDIO_CHANNEL_IN_MONO; |
| size_t AudioSystem::gInBuffSize = 0; |
| |
| |
| // establish binder interface to AudioFlinger service |
| const sp<IAudioFlinger>& AudioSystem::get_audio_flinger() |
| { |
| 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); |
| gAudioFlinger->registerClient(gAudioFlingerClient); |
| } |
| ALOGE_IF(gAudioFlinger==0, "no AudioFlinger!?"); |
| |
| return gAudioFlinger; |
| } |
| |
| /* 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; |
| } |
| |
| // 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, streamType, samplingRate); |
| } |
| |
| status_t AudioSystem::getSamplingRate(audio_io_handle_t output, |
| audio_stream_type_t streamType, |
| uint32_t* samplingRate) |
| { |
| OutputDescriptor *outputDesc; |
| |
| gLock.lock(); |
| outputDesc = AudioSystem::gOutputs.valueFor(output); |
| if (outputDesc == NULL) { |
| ALOGV("getOutputSamplingRate() no output descriptor for output %d in gOutputs", output); |
| gLock.unlock(); |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| *samplingRate = af->sampleRate(output); |
| } else { |
| ALOGV("getOutputSamplingRate() reading from output desc"); |
| *samplingRate = outputDesc->samplingRate; |
| gLock.unlock(); |
| } |
| |
| ALOGV("getSamplingRate() streamType %d, output %d, sampling rate %u", streamType, 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 == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return getFrameCount(output, streamType, frameCount); |
| } |
| |
| status_t AudioSystem::getFrameCount(audio_io_handle_t output, |
| audio_stream_type_t streamType, |
| size_t* frameCount) |
| { |
| OutputDescriptor *outputDesc; |
| |
| gLock.lock(); |
| outputDesc = AudioSystem::gOutputs.valueFor(output); |
| if (outputDesc == NULL) { |
| gLock.unlock(); |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| *frameCount = af->frameCount(output); |
| } else { |
| *frameCount = outputDesc->frameCount; |
| gLock.unlock(); |
| } |
| |
| ALOGV("getFrameCount() streamType %d, output %d, frameCount %d", streamType, 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 == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return getLatency(output, streamType, latency); |
| } |
| |
| status_t AudioSystem::getLatency(audio_io_handle_t output, |
| audio_stream_type_t streamType, |
| uint32_t* latency) |
| { |
| OutputDescriptor *outputDesc; |
| |
| gLock.lock(); |
| outputDesc = AudioSystem::gOutputs.valueFor(output); |
| if (outputDesc == NULL) { |
| gLock.unlock(); |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| *latency = af->latency(output); |
| } else { |
| *latency = outputDesc->latency; |
| gLock.unlock(); |
| } |
| |
| ALOGV("getLatency() streamType %d, output %d, latency %d", streamType, output, *latency); |
| |
| return NO_ERROR; |
| } |
| |
| status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format, |
| audio_channel_mask_t channelMask, size_t* buffSize) |
| { |
| gLock.lock(); |
| // 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)) { |
| gLock.unlock(); |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| return PERMISSION_DENIED; |
| } |
| inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask); |
| gLock.lock(); |
| // save the request params |
| gPrevInSamplingRate = sampleRate; |
| gPrevInFormat = format; |
| gPrevInChannelMask = channelMask; |
| |
| gInBuffSize = inBuffSize; |
| } |
| gLock.unlock(); |
| *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, size_t *halFrames, |
| size_t *dspFrames, audio_stream_type_t stream) |
| { |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| |
| if (stream == AUDIO_STREAM_DEFAULT) { |
| stream = AUDIO_STREAM_MUSIC; |
| } |
| |
| if (output == 0) { |
| output = getOutput(stream); |
| } |
| |
| return af->getRenderPosition(halFrames, dspFrames, output); |
| } |
| |
| size_t AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle) { |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| unsigned int result = 0; |
| if (af == 0) return result; |
| if (ioHandle == 0) return result; |
| |
| result = af->getInputFramesLost(ioHandle); |
| return result; |
| } |
| |
| int AudioSystem::newAudioSessionId() { |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return 0; |
| return af->newAudioSessionId(); |
| } |
| |
| void AudioSystem::acquireAudioSessionId(int audioSession) { |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af != 0) { |
| af->acquireAudioSessionId(audioSession); |
| } |
| } |
| |
| void AudioSystem::releaseAudioSessionId(int audioSession) { |
| const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); |
| if (af != 0) { |
| af->releaseAudioSessionId(audioSession); |
| } |
| } |
| |
| // --------------------------------------------------------------------------- |
| |
| void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who) { |
| Mutex::Autolock _l(AudioSystem::gLock); |
| |
| AudioSystem::gAudioFlinger.clear(); |
| // clear output handles and stream to output map caches |
| AudioSystem::gOutputs.clear(); |
| |
| if (gAudioErrorCallback) { |
| gAudioErrorCallback(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; |
| audio_stream_type_t stream; |
| |
| if (ioHandle == 0) return; |
| |
| Mutex::Autolock _l(AudioSystem::gLock); |
| |
| 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 %d channel mask %#x frameCount %u " |
| "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 %d channel mask %#x " |
| "frameCount %d 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; |
| } |
| |
| bool AudioSystem::routedToA2dpOutput(audio_stream_type_t streamType) { |
| switch (streamType) { |
| case AUDIO_STREAM_MUSIC: |
| case AUDIO_STREAM_VOICE_CALL: |
| case AUDIO_STREAM_BLUETOOTH_SCO: |
| case AUDIO_STREAM_SYSTEM: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| |
| // client singleton for AudioPolicyService binder interface |
| sp<IAudioPolicyService> AudioSystem::gAudioPolicyService; |
| sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient; |
| |
| |
| // establish binder interface to AudioPolicy service |
| const sp<IAudioPolicyService>& AudioSystem::get_audio_policy_service() |
| { |
| gLock.lock(); |
| 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); |
| gLock.unlock(); |
| } else { |
| gLock.unlock(); |
| } |
| return gAudioPolicyService; |
| } |
| |
| // --------------------------------------------------------------------------- |
| |
| status_t AudioSystem::setDeviceConnectionState(audio_devices_t device, |
| audio_policy_dev_state_t state, |
| const char *device_address) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| const char *address = ""; |
| |
| if (aps == 0) return PERMISSION_DENIED; |
| |
| if (device_address != NULL) { |
| address = device_address; |
| } |
| |
| return aps->setDeviceConnectionState(device, state, address); |
| } |
| |
| 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::startOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| int 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, |
| int 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) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return; |
| aps->releaseOutput(output); |
| } |
| |
| audio_io_handle_t AudioSystem::getInput(audio_source_t inputSource, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| int sessionId) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return 0; |
| return aps->getInput(inputSource, samplingRate, format, channelMask, sessionId); |
| } |
| |
| status_t AudioSystem::startInput(audio_io_handle_t input) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return PERMISSION_DENIED; |
| return aps->startInput(input); |
| } |
| |
| status_t AudioSystem::stopInput(audio_io_handle_t input) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return PERMISSION_DENIED; |
| return aps->stopInput(input); |
| } |
| |
| void AudioSystem::releaseInput(audio_io_handle_t input) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return; |
| aps->releaseInput(input); |
| } |
| |
| 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_devices_t)0; |
| return aps->getDevicesForStream(stream); |
| } |
| |
| audio_io_handle_t AudioSystem::getOutputForEffect(const effect_descriptor_t *desc) |
| { |
| const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); |
| if (aps == 0) return PERMISSION_DENIED; |
| 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() |
| { |
| Mutex::Autolock _l(gLock); |
| ALOGV("clearAudioConfigCache()"); |
| gOutputs.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); |
| } |
| |
| // --------------------------------------------------------------------------- |
| |
| void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who) { |
| Mutex::Autolock _l(AudioSystem::gLock); |
| AudioSystem::gAudioPolicyService.clear(); |
| |
| ALOGW("AudioPolicyService server died!"); |
| } |
| |
| }; // namespace android |
