| /* |
| * Copyright (C) 2009 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 "AudioPolicyManagerGeneric" |
| //#define LOG_NDEBUG 0 |
| #include <utils/Log.h> |
| #include "AudioPolicyManagerGeneric.h" |
| #include <media/mediarecorder.h> |
| |
| namespace android { |
| |
| |
| // ---------------------------------------------------------------------------- |
| // AudioPolicyInterface implementation |
| // ---------------------------------------------------------------------------- |
| |
| |
| status_t AudioPolicyManagerGeneric::setDeviceConnectionState(AudioSystem::audio_devices device, |
| AudioSystem::device_connection_state state, |
| const char *device_address) |
| { |
| |
| LOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address); |
| |
| // connect/disconnect only 1 device at a time |
| if (AudioSystem::popCount(device) != 1) return BAD_VALUE; |
| |
| if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) { |
| LOGE("setDeviceConnectionState() invalid address: %s", device_address); |
| return BAD_VALUE; |
| } |
| |
| // handle output devices |
| if (AudioSystem::isOutputDevice(device)) { |
| switch (state) |
| { |
| // handle output device connection |
| case AudioSystem::DEVICE_STATE_AVAILABLE: |
| if (mAvailableOutputDevices & device) { |
| LOGW("setDeviceConnectionState() device already connected: %x", device); |
| return INVALID_OPERATION; |
| } |
| LOGV("setDeviceConnectionState() connecting device %x", device); |
| |
| // register new device as available |
| mAvailableOutputDevices |= device; |
| break; |
| // handle output device disconnection |
| case AudioSystem::DEVICE_STATE_UNAVAILABLE: |
| if (!(mAvailableOutputDevices & device)) { |
| LOGW("setDeviceConnectionState() device not connected: %x", device); |
| return INVALID_OPERATION; |
| } |
| LOGV("setDeviceConnectionState() disconnecting device %x", device); |
| // remove device from available output devices |
| mAvailableOutputDevices &= ~device; |
| break; |
| |
| default: |
| LOGE("setDeviceConnectionState() invalid state: %x", state); |
| return BAD_VALUE; |
| } |
| return NO_ERROR; |
| } |
| // handle input devices |
| if (AudioSystem::isInputDevice(device)) { |
| switch (state) |
| { |
| // handle input device connection |
| case AudioSystem::DEVICE_STATE_AVAILABLE: |
| if (mAvailableInputDevices & device) { |
| LOGW("setDeviceConnectionState() device already connected: %d", device); |
| return INVALID_OPERATION; |
| } |
| mAvailableInputDevices |= device; |
| break; |
| |
| // handle input device disconnection |
| case AudioSystem::DEVICE_STATE_UNAVAILABLE: |
| if (!(mAvailableInputDevices & device)) { |
| LOGW("setDeviceConnectionState() device not connected: %d", device); |
| return INVALID_OPERATION; |
| } |
| mAvailableInputDevices &= ~device; |
| break; |
| |
| default: |
| LOGE("setDeviceConnectionState() invalid state: %x", state); |
| return BAD_VALUE; |
| } |
| return NO_ERROR; |
| } |
| |
| LOGW("setDeviceConnectionState() invalid device: %x", device); |
| return BAD_VALUE; |
| } |
| |
| AudioSystem::device_connection_state AudioPolicyManagerGeneric::getDeviceConnectionState(AudioSystem::audio_devices device, |
| const char *device_address) |
| { |
| AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE; |
| String8 address = String8(device_address); |
| if (AudioSystem::isOutputDevice(device)) { |
| if (device & mAvailableOutputDevices) { |
| state = AudioSystem::DEVICE_STATE_AVAILABLE; |
| } |
| } else if (AudioSystem::isInputDevice(device)) { |
| if (device & mAvailableInputDevices) { |
| state = AudioSystem::DEVICE_STATE_AVAILABLE; |
| } |
| } |
| |
| return state; |
| } |
| |
| void AudioPolicyManagerGeneric::setPhoneState(int state) |
| { |
| LOGV("setPhoneState() state %d", state); |
| uint32_t newDevice = 0; |
| if (state < 0 || state >= AudioSystem::NUM_MODES) { |
| LOGW("setPhoneState() invalid state %d", state); |
| return; |
| } |
| |
| if (state == mPhoneState ) { |
| LOGW("setPhoneState() setting same state %d", state); |
| return; |
| } |
| // store previous phone state for management of sonification strategy below |
| int oldState = mPhoneState; |
| mPhoneState = state; |
| |
| // if leaving or entering in call state, handle special case of active streams |
| // pertaining to sonification strategy see handleIncallSonification() |
| if (state == AudioSystem::MODE_IN_CALL || |
| oldState == AudioSystem::MODE_IN_CALL) { |
| bool starting = (state == AudioSystem::MODE_IN_CALL) ? true : false; |
| LOGV("setPhoneState() in call state management: new state is %d", state); |
| for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { |
| handleIncallSonification(stream, starting); |
| } |
| } |
| } |
| |
| void AudioPolicyManagerGeneric::setRingerMode(uint32_t mode, uint32_t mask) |
| { |
| LOGV("setRingerMode() mode %x, mask %x", mode, mask); |
| |
| mRingerMode = mode; |
| } |
| |
| void AudioPolicyManagerGeneric::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config) |
| { |
| LOGV("setForceUse) usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); |
| mForceUse[usage] = config; |
| } |
| |
| AudioSystem::forced_config AudioPolicyManagerGeneric::getForceUse(AudioSystem::force_use usage) |
| { |
| return mForceUse[usage]; |
| } |
| |
| void AudioPolicyManagerGeneric::setSystemProperty(const char* property, const char* value) |
| { |
| LOGV("setSystemProperty() property %s, value %s", property, value); |
| if (strcmp(property, "ro.camera.sound.forced") == 0) { |
| if (atoi(value)) { |
| LOGV("ENFORCED_AUDIBLE cannot be muted"); |
| mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = false; |
| } else { |
| LOGV("ENFORCED_AUDIBLE can be muted"); |
| mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = true; |
| } |
| } |
| } |
| |
| audio_io_handle_t AudioPolicyManagerGeneric::getOutput(AudioSystem::stream_type stream, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| AudioSystem::output_flags flags) |
| { |
| LOGV("getOutput() stream %d, samplingRate %d, format %d, channels %x, flags %x", stream, samplingRate, format, channels, flags); |
| |
| #ifdef AUDIO_POLICY_TEST |
| if (mCurOutput != 0) { |
| LOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelcount %d, mDirectOutput %d", |
| mCurOutput, mTestSamplingRate, mTestFormat, mTestChannelcount, mDirectOutput); |
| |
| if (mTestOutputs[mCurOutput] == 0) { |
| LOGV("getOutput() opening test output"); |
| AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(); |
| outputDesc->mDevice = mTestDevice; |
| outputDesc->mSamplingRate = mTestSamplingRate; |
| outputDesc->mFormat = mTestFormat; |
| outputDesc->mChannels = (mTestChannelcount == 1) ? AudioSystem::CHANNEL_OUT_MONO : AudioSystem::CHANNEL_OUT_STEREO; |
| outputDesc->mLatency = mTestLatencyMs; |
| outputDesc->mFlags = (AudioSystem::output_flags)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0); |
| outputDesc->mRefCount[stream] = 0; |
| mTestOutputs[mCurOutput] = mpClientInterface->openOutput(&outputDesc->mDevice, |
| &outputDesc->mSamplingRate, |
| &outputDesc->mFormat, |
| &outputDesc->mChannels, |
| &outputDesc->mLatency, |
| outputDesc->mFlags); |
| mOutputs.add(mTestOutputs[mCurOutput], outputDesc); |
| } |
| return mTestOutputs[mCurOutput]; |
| } |
| #endif //AUDIO_POLICY_TEST |
| if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) || |
| (format != 0 && !AudioSystem::isLinearPCM(format)) || |
| (channels != 0 && channels != AudioSystem::CHANNEL_OUT_MONO && channels != AudioSystem::CHANNEL_OUT_STEREO)) { |
| return NULL; |
| } |
| |
| return mHardwareOutput; |
| } |
| |
| status_t AudioPolicyManagerGeneric::startOutput(audio_io_handle_t output, AudioSystem::stream_type stream) |
| { |
| LOGV("startOutput() output %p, stream %d", output, stream); |
| ssize_t index = mOutputs.indexOfKey(output); |
| if (index < 0) { |
| LOGW("startOutput() unknow output %p", output); |
| return BAD_VALUE; |
| } |
| |
| AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); |
| |
| // handle special case for sonification while in call |
| if (mPhoneState == AudioSystem::MODE_IN_CALL) { |
| handleIncallSonification(stream, true); |
| } |
| |
| // incremenent usage count for this stream on the requested output: |
| outputDesc->changeRefCount(stream, 1); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyManagerGeneric::stopOutput(audio_io_handle_t output, AudioSystem::stream_type stream) |
| { |
| LOGV("stopOutput() output %p, stream %d", output, stream); |
| ssize_t index = mOutputs.indexOfKey(output); |
| if (index < 0) { |
| LOGW("stopOutput() unknow output %p", output); |
| return BAD_VALUE; |
| } |
| |
| AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); |
| |
| // handle special case for sonification while in call |
| if (mPhoneState == AudioSystem::MODE_IN_CALL) { |
| handleIncallSonification(stream, false); |
| } |
| |
| if (outputDesc->isUsedByStream(stream)) { |
| // decrement usage count of this stream on the output |
| outputDesc->changeRefCount(stream, -1); |
| return NO_ERROR; |
| } else { |
| LOGW("stopOutput() refcount is already 0 for output %p", output); |
| return INVALID_OPERATION; |
| } |
| } |
| |
| void AudioPolicyManagerGeneric::releaseOutput(audio_io_handle_t output) |
| { |
| LOGV("releaseOutput() %p", output); |
| ssize_t index = mOutputs.indexOfKey(output); |
| if (index < 0) { |
| LOGW("releaseOutput() releasing unknown output %p", output); |
| return; |
| } |
| |
| #ifdef AUDIO_POLICY_TEST |
| int testIndex = testOutputIndex(output); |
| if (testIndex != 0) { |
| AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); |
| if (outputDesc->refCount() == 0) { |
| mpClientInterface->closeOutput(output); |
| delete mOutputs.valueAt(index); |
| mOutputs.removeItem(output); |
| mTestOutputs[testIndex] = 0; |
| } |
| } |
| #endif //AUDIO_POLICY_TEST |
| } |
| |
| audio_io_handle_t AudioPolicyManagerGeneric::getInput(int inputSource, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| AudioSystem::audio_in_acoustics acoustics) |
| { |
| audio_io_handle_t input = 0; |
| uint32_t device; |
| |
| LOGV("getInput() inputSource %d, samplingRate %d, format %d, channels %x, acoustics %x", inputSource, samplingRate, format, channels, acoustics); |
| |
| AudioInputDescriptor *inputDesc = new AudioInputDescriptor(); |
| inputDesc->mDevice = AudioSystem::DEVICE_IN_BUILTIN_MIC; |
| inputDesc->mSamplingRate = samplingRate; |
| inputDesc->mFormat = format; |
| inputDesc->mChannels = channels; |
| inputDesc->mAcoustics = acoustics; |
| inputDesc->mRefCount = 0; |
| input = mpClientInterface->openInput(&inputDesc->mDevice, |
| &inputDesc->mSamplingRate, |
| &inputDesc->mFormat, |
| &inputDesc->mChannels, |
| inputDesc->mAcoustics); |
| |
| // only accept input with the exact requested set of parameters |
| if ((samplingRate != inputDesc->mSamplingRate) || |
| (format != inputDesc->mFormat) || |
| (channels != inputDesc->mChannels)) { |
| LOGV("getOutput() failed opening input: samplingRate %d, format %d, channels %d", |
| samplingRate, format, channels); |
| mpClientInterface->closeInput(input); |
| delete inputDesc; |
| return NULL; |
| } |
| mInputs.add(input, inputDesc); |
| return input; |
| } |
| |
| status_t AudioPolicyManagerGeneric::startInput(audio_io_handle_t input) |
| { |
| LOGV("startInput() input %p", input); |
| ssize_t index = mInputs.indexOfKey(input); |
| if (index < 0) { |
| LOGW("startInput() unknow input %p", input); |
| return BAD_VALUE; |
| } |
| AudioInputDescriptor *inputDesc = mInputs.valueAt(index); |
| |
| #ifdef AUDIO_POLICY_TEST |
| if (mTestInput == 0) |
| #endif //AUDIO_POLICY_TEST |
| { |
| // refuse 2 active AudioRecord clients at the same time |
| for (size_t i = 0; i < mInputs.size(); i++) { |
| if (mInputs.valueAt(i)->mRefCount > 0) { |
| LOGW("startInput() input %p, other input %p already started", input, mInputs.keyAt(i)); |
| return INVALID_OPERATION; |
| } |
| } |
| } |
| |
| inputDesc->mRefCount = 1; |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyManagerGeneric::stopInput(audio_io_handle_t input) |
| { |
| LOGV("stopInput() input %p", input); |
| ssize_t index = mInputs.indexOfKey(input); |
| if (index < 0) { |
| LOGW("stopInput() unknow input %p", input); |
| return BAD_VALUE; |
| } |
| AudioInputDescriptor *inputDesc = mInputs.valueAt(index); |
| |
| if (inputDesc->mRefCount == 0) { |
| LOGW("stopInput() input %p already stopped", input); |
| return INVALID_OPERATION; |
| } else { |
| inputDesc->mRefCount = 0; |
| return NO_ERROR; |
| } |
| } |
| |
| void AudioPolicyManagerGeneric::releaseInput(audio_io_handle_t input) |
| { |
| LOGV("releaseInput() %p", input); |
| ssize_t index = mInputs.indexOfKey(input); |
| if (index < 0) { |
| LOGW("releaseInput() releasing unknown input %p", input); |
| return; |
| } |
| mpClientInterface->closeInput(input); |
| delete mInputs.valueAt(index); |
| mInputs.removeItem(input); |
| } |
| |
| |
| |
| void AudioPolicyManagerGeneric::initStreamVolume(AudioSystem::stream_type stream, |
| int indexMin, |
| int indexMax) |
| { |
| LOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); |
| mStreams[stream].mIndexMin = indexMin; |
| mStreams[stream].mIndexMax = indexMax; |
| } |
| |
| status_t AudioPolicyManagerGeneric::setStreamVolumeIndex(AudioSystem::stream_type stream, int index) |
| { |
| |
| if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { |
| return BAD_VALUE; |
| } |
| |
| LOGV("setStreamVolumeIndex() stream %d, index %d", stream, index); |
| mStreams[stream].mIndexCur = index; |
| |
| // do not change actual stream volume if the stream is muted |
| if (mStreams[stream].mMuteCount != 0) { |
| return NO_ERROR; |
| } |
| |
| // Do not changed in call volume if bluetooth is connected and vice versa |
| if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) || |
| (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) { |
| LOGV("setStreamVolumeIndex() cannot set stream %d volume with force use = %d for comm", |
| stream, mForceUse[AudioSystem::FOR_COMMUNICATION]); |
| return INVALID_OPERATION; |
| } |
| |
| // compute and apply stream volume on all outputs according to connected device |
| for (size_t i = 0; i < mOutputs.size(); i++) { |
| AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); |
| uint32_t device = outputDesc->device(); |
| |
| float volume = computeVolume((int)stream, index, device); |
| |
| LOGV("setStreamVolume() for output %p stream %d, volume %f", mOutputs.keyAt(i), stream, volume); |
| mpClientInterface->setStreamVolume(stream, volume, mOutputs.keyAt(i)); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyManagerGeneric::getStreamVolumeIndex(AudioSystem::stream_type stream, int *index) |
| { |
| if (index == 0) { |
| return BAD_VALUE; |
| } |
| LOGV("getStreamVolumeIndex() stream %d", stream); |
| *index = mStreams[stream].mIndexCur; |
| return NO_ERROR; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| // AudioPolicyManagerGeneric |
| // ---------------------------------------------------------------------------- |
| |
| // --- class factory |
| |
| |
| extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface) |
| { |
| return new AudioPolicyManagerGeneric(clientInterface); |
| } |
| |
| extern "C" void destroyAudioPolicyManager(AudioPolicyInterface *interface) |
| { |
| delete interface; |
| } |
| |
| AudioPolicyManagerGeneric::AudioPolicyManagerGeneric(AudioPolicyClientInterface *clientInterface) |
| : |
| #ifdef AUDIO_POLICY_TEST |
| Thread(false), |
| #endif //AUDIO_POLICY_TEST |
| mPhoneState(AudioSystem::MODE_NORMAL), mRingerMode(0) |
| { |
| mpClientInterface = clientInterface; |
| |
| for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) { |
| mForceUse[i] = AudioSystem::FORCE_NONE; |
| } |
| |
| // devices available by default are speaker, ear piece and microphone |
| mAvailableOutputDevices = AudioSystem::DEVICE_OUT_SPEAKER; |
| mAvailableInputDevices = AudioSystem::DEVICE_IN_BUILTIN_MIC; |
| |
| // open hardware output |
| AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(); |
| outputDesc->mDevice = (uint32_t)AudioSystem::DEVICE_OUT_SPEAKER; |
| mHardwareOutput = mpClientInterface->openOutput(&outputDesc->mDevice, |
| &outputDesc->mSamplingRate, |
| &outputDesc->mFormat, |
| &outputDesc->mChannels, |
| &outputDesc->mLatency, |
| outputDesc->mFlags); |
| |
| if (mHardwareOutput == 0) { |
| LOGE("Failed to initialize hardware output stream, samplingRate: %d, format %d, channels %d", |
| outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannels); |
| } else { |
| mOutputs.add(mHardwareOutput, outputDesc); |
| } |
| |
| #ifdef AUDIO_POLICY_TEST |
| mTestDevice = AudioSystem::DEVICE_OUT_SPEAKER; |
| mTestSamplingRate = 44100; |
| mTestFormat = AudioSystem::PCM_16_BIT; |
| mTestChannelcount = 2; |
| mTestLatencyMs = 0; |
| mCurOutput = 0; |
| mDirectOutput = false; |
| for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { |
| mTestOutputs[i] = 0; |
| } |
| |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| snprintf(buffer, SIZE, "AudioPolicyManagerTest"); |
| run(buffer, ANDROID_PRIORITY_AUDIO); |
| #endif //AUDIO_POLICY_TEST |
| } |
| |
| AudioPolicyManagerGeneric::~AudioPolicyManagerGeneric() |
| { |
| #ifdef AUDIO_POLICY_TEST |
| exit(); |
| #endif //AUDIO_POLICY_TEST |
| |
| for (size_t i = 0; i < mOutputs.size(); i++) { |
| mpClientInterface->closeOutput(mOutputs.keyAt(i)); |
| delete mOutputs.valueAt(i); |
| } |
| mOutputs.clear(); |
| for (size_t i = 0; i < mInputs.size(); i++) { |
| mpClientInterface->closeInput(mInputs.keyAt(i)); |
| delete mInputs.valueAt(i); |
| } |
| mInputs.clear(); |
| } |
| |
| #ifdef AUDIO_POLICY_TEST |
| bool AudioPolicyManagerGeneric::threadLoop() |
| { |
| LOGV("entering threadLoop()"); |
| while (!exitPending()) |
| { |
| Mutex::Autolock _l(mLock); |
| mWaitWorkCV.waitRelative(mLock, milliseconds(50)); |
| String8 command; |
| command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); |
| if (command != "") { |
| LOGV("Test command %s received", command.string()); |
| AudioParameter param = AudioParameter(command); |
| int valueInt; |
| String8 value; |
| if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_output")); |
| mCurOutput = valueInt; |
| } |
| if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_direct")); |
| if (value == "false") { |
| mDirectOutput = false; |
| } else if (value == "true") { |
| mDirectOutput = true; |
| } |
| } |
| if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_input")); |
| mTestInput = valueInt; |
| } |
| |
| if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_format")); |
| if (value == "PCM 16 bits") { |
| mTestFormat = AudioSystem::PCM_16_BIT; |
| } else if (value == "PCM 8 bits") { |
| mTestFormat = AudioSystem::PCM_8_BIT; |
| } else if (value == "Compressed MP3") { |
| mTestFormat = AudioSystem::MP3; |
| } |
| } |
| if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_channels")); |
| if (value == "Channels Stereo") { |
| mTestChannelcount = 2; |
| } else if (value == "Channels Mono") { |
| mTestChannelcount = 1; |
| } |
| } |
| if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { |
| param.remove(String8("test_cmd_policy_sampleRate")); |
| if (valueInt >= 0 && valueInt <= 96000) { |
| mTestSamplingRate = valueInt; |
| } |
| } |
| mpClientInterface->setParameters(0, String8("test_cmd_policy=")); |
| } |
| } |
| return false; |
| } |
| |
| void AudioPolicyManagerGeneric::exit() |
| { |
| { |
| AutoMutex _l(mLock); |
| requestExit(); |
| mWaitWorkCV.signal(); |
| } |
| requestExitAndWait(); |
| } |
| |
| int AudioPolicyManagerGeneric::testOutputIndex(audio_io_handle_t output) |
| { |
| for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { |
| if (output == mTestOutputs[i]) return i; |
| } |
| return 0; |
| } |
| #endif //AUDIO_POLICY_TEST |
| |
| // --- |
| |
| AudioPolicyManagerGeneric::routing_strategy AudioPolicyManagerGeneric::getStrategy(AudioSystem::stream_type stream) |
| { |
| // stream to strategy mapping |
| switch (stream) { |
| case AudioSystem::VOICE_CALL: |
| case AudioSystem::BLUETOOTH_SCO: |
| return STRATEGY_PHONE; |
| case AudioSystem::RING: |
| case AudioSystem::NOTIFICATION: |
| case AudioSystem::ALARM: |
| case AudioSystem::ENFORCED_AUDIBLE: |
| return STRATEGY_SONIFICATION; |
| case AudioSystem::DTMF: |
| return STRATEGY_DTMF; |
| default: |
| LOGE("unknown stream type"); |
| case AudioSystem::SYSTEM: |
| // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs |
| // while key clicks are played produces a poor result |
| case AudioSystem::TTS: |
| case AudioSystem::MUSIC: |
| return STRATEGY_MEDIA; |
| } |
| } |
| |
| |
| float AudioPolicyManagerGeneric::computeVolume(int stream, int index, uint32_t device) |
| { |
| float volume = 1.0; |
| |
| StreamDescriptor &streamDesc = mStreams[stream]; |
| |
| // Force max volume if stream cannot be muted |
| if (!streamDesc.mCanBeMuted) index = streamDesc.mIndexMax; |
| |
| int volInt = (100 * (index - streamDesc.mIndexMin)) / (streamDesc.mIndexMax - streamDesc.mIndexMin); |
| volume = AudioSystem::linearToLog(volInt); |
| |
| return volume; |
| } |
| |
| void AudioPolicyManagerGeneric::setStreamMute(int stream, bool on, audio_io_handle_t output) |
| { |
| LOGV("setStreamMute() stream %d, mute %d, output %p", stream, on, output); |
| |
| StreamDescriptor &streamDesc = mStreams[stream]; |
| |
| if (on) { |
| if (streamDesc.mMuteCount++ == 0) { |
| if (streamDesc.mCanBeMuted) { |
| mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, 0, output); |
| } |
| } |
| } else { |
| if (streamDesc.mMuteCount == 0) { |
| LOGW("setStreamMute() unmuting non muted stream!"); |
| return; |
| } |
| if (--streamDesc.mMuteCount == 0) { |
| uint32_t device = mOutputs.valueFor(output)->mDevice; |
| float volume = computeVolume(stream, streamDesc.mIndexCur, device); |
| mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output); |
| } |
| } |
| } |
| |
| void AudioPolicyManagerGeneric::handleIncallSonification(int stream, bool starting) |
| { |
| // if the stream pertains to sonification strategy and we are in call we must |
| // mute the stream if it is low visibility. If it is high visibility, we must play a tone |
| // in the device used for phone strategy and play the tone if the selected device does not |
| // interfere with the device used for phone strategy |
| if (getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) { |
| AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mHardwareOutput); |
| LOGV("handleIncallSonification() stream %d starting %d device %x", stream, starting, outputDesc->mDevice); |
| if (outputDesc->isUsedByStream((AudioSystem::stream_type)stream)) { |
| if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) { |
| LOGV("handleIncallSonification() low visibility"); |
| setStreamMute(stream, starting, mHardwareOutput); |
| } else { |
| if (starting) { |
| mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL); |
| } else { |
| mpClientInterface->stopTone(); |
| } |
| } |
| } |
| } |
| } |
| |
| |
| // --- AudioOutputDescriptor class implementation |
| |
| AudioPolicyManagerGeneric::AudioOutputDescriptor::AudioOutputDescriptor() |
| : mSamplingRate(0), mFormat(0), mChannels(0), mLatency(0), |
| mFlags((AudioSystem::output_flags)0), mDevice(0) |
| { |
| // clear usage count for all stream types |
| for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) { |
| mRefCount[i] = 0; |
| } |
| } |
| |
| uint32_t AudioPolicyManagerGeneric::AudioOutputDescriptor::device() |
| { |
| return mDevice; |
| } |
| |
| void AudioPolicyManagerGeneric::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta) |
| { |
| if ((delta + (int)mRefCount[stream]) < 0) { |
| LOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]); |
| mRefCount[stream] = 0; |
| return; |
| } |
| mRefCount[stream] += delta; |
| LOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); |
| } |
| |
| uint32_t AudioPolicyManagerGeneric::AudioOutputDescriptor::refCount() |
| { |
| uint32_t refcount = 0; |
| for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) { |
| refcount += mRefCount[i]; |
| } |
| return refcount; |
| } |
| |
| // --- AudioInputDescriptor class implementation |
| |
| AudioPolicyManagerGeneric::AudioInputDescriptor::AudioInputDescriptor() |
| : mSamplingRate(0), mFormat(0), mChannels(0), |
| mAcoustics((AudioSystem::audio_in_acoustics)0), mDevice(0), mRefCount(0) |
| { |
| } |
| |
| }; // namespace android |