2 * Copyright (C) 2009 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #define LOG_TAG "AudioPolicyManagerBase"
18 //#define LOG_NDEBUG 0
19 #include <utils/Log.h>
20 #include <hardware_legacy/AudioPolicyManagerBase.h>
21 #include <media/mediarecorder.h>
24 namespace android_audio_legacy {
26 // ----------------------------------------------------------------------------
27 // AudioPolicyInterface implementation
28 // ----------------------------------------------------------------------------
31 status_t AudioPolicyManagerBase::setDeviceConnectionState(AudioSystem::audio_devices device,
32 AudioSystem::device_connection_state state,
33 const char *device_address)
36 LOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address);
38 // connect/disconnect only 1 device at a time
39 if (AudioSystem::popCount(device) != 1) return BAD_VALUE;
41 if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) {
42 LOGE("setDeviceConnectionState() invalid address: %s", device_address);
46 // handle output devices
47 if (AudioSystem::isOutputDevice(device)) {
50 if (AudioSystem::isA2dpDevice(device)) {
51 LOGE("setDeviceConnectionState() invalid device: %x", device);
58 // handle output device connection
59 case AudioSystem::DEVICE_STATE_AVAILABLE:
60 if (mAvailableOutputDevices & device) {
61 LOGW("setDeviceConnectionState() device already connected: %x", device);
62 return INVALID_OPERATION;
64 LOGV("setDeviceConnectionState() connecting device %x", device);
66 // register new device as available
67 mAvailableOutputDevices |= device;
70 // handle A2DP device connection
71 if (AudioSystem::isA2dpDevice(device)) {
72 status_t status = handleA2dpConnection(device, device_address);
73 if (status != NO_ERROR) {
74 mAvailableOutputDevices &= ~device;
80 if (AudioSystem::isBluetoothScoDevice(device)) {
81 LOGV("setDeviceConnectionState() BT SCO device, address %s", device_address);
82 // keep track of SCO device address
83 mScoDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
87 // handle output device disconnection
88 case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
89 if (!(mAvailableOutputDevices & device)) {
90 LOGW("setDeviceConnectionState() device not connected: %x", device);
91 return INVALID_OPERATION;
95 LOGV("setDeviceConnectionState() disconnecting device %x", device);
96 // remove device from available output devices
97 mAvailableOutputDevices &= ~device;
100 // handle A2DP device disconnection
101 if (AudioSystem::isA2dpDevice(device)) {
102 status_t status = handleA2dpDisconnection(device, device_address);
103 if (status != NO_ERROR) {
104 mAvailableOutputDevices |= device;
110 if (AudioSystem::isBluetoothScoDevice(device)) {
111 mScoDeviceAddress = "";
117 LOGE("setDeviceConnectionState() invalid state: %x", state);
121 // request routing change if necessary
122 uint32_t newDevice = getNewDevice(mHardwareOutput, false);
125 checkOutputForAllStrategies();
126 // A2DP outputs must be closed after checkOutputForAllStrategies() is executed
127 if (state == AudioSystem::DEVICE_STATE_UNAVAILABLE && AudioSystem::isA2dpDevice(device)) {
131 updateDeviceForStrategy();
132 setOutputDevice(mHardwareOutput, newDevice);
134 if (device == AudioSystem::DEVICE_OUT_WIRED_HEADSET) {
135 device = AudioSystem::DEVICE_IN_WIRED_HEADSET;
136 } else if (device == AudioSystem::DEVICE_OUT_BLUETOOTH_SCO ||
137 device == AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_HEADSET ||
138 device == AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT) {
139 device = AudioSystem::DEVICE_IN_BLUETOOTH_SCO_HEADSET;
144 // handle input devices
145 if (AudioSystem::isInputDevice(device)) {
149 // handle input device connection
150 case AudioSystem::DEVICE_STATE_AVAILABLE: {
151 if (mAvailableInputDevices & device) {
152 LOGW("setDeviceConnectionState() device already connected: %d", device);
153 return INVALID_OPERATION;
155 mAvailableInputDevices |= device;
159 // handle input device disconnection
160 case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
161 if (!(mAvailableInputDevices & device)) {
162 LOGW("setDeviceConnectionState() device not connected: %d", device);
163 return INVALID_OPERATION;
165 mAvailableInputDevices &= ~device;
169 LOGE("setDeviceConnectionState() invalid state: %x", state);
173 audio_io_handle_t activeInput = getActiveInput();
174 if (activeInput != 0) {
175 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
176 uint32_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
177 if (newDevice != inputDesc->mDevice) {
178 LOGV("setDeviceConnectionState() changing device from %x to %x for input %d",
179 inputDesc->mDevice, newDevice, activeInput);
180 inputDesc->mDevice = newDevice;
181 AudioParameter param = AudioParameter();
182 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
183 mpClientInterface->setParameters(activeInput, param.toString());
190 LOGW("setDeviceConnectionState() invalid device: %x", device);
194 AudioSystem::device_connection_state AudioPolicyManagerBase::getDeviceConnectionState(AudioSystem::audio_devices device,
195 const char *device_address)
197 AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE;
198 String8 address = String8(device_address);
199 if (AudioSystem::isOutputDevice(device)) {
200 if (device & mAvailableOutputDevices) {
202 if (AudioSystem::isA2dpDevice(device) &&
203 address != "" && mA2dpDeviceAddress != address) {
207 if (AudioSystem::isBluetoothScoDevice(device) &&
208 address != "" && mScoDeviceAddress != address) {
211 state = AudioSystem::DEVICE_STATE_AVAILABLE;
213 } else if (AudioSystem::isInputDevice(device)) {
214 if (device & mAvailableInputDevices) {
215 state = AudioSystem::DEVICE_STATE_AVAILABLE;
222 void AudioPolicyManagerBase::setPhoneState(int state)
224 LOGV("setPhoneState() state %d", state);
225 uint32_t newDevice = 0;
226 if (state < 0 || state >= AudioSystem::NUM_MODES) {
227 LOGW("setPhoneState() invalid state %d", state);
231 if (state == mPhoneState ) {
232 LOGW("setPhoneState() setting same state %d", state);
236 // if leaving call state, handle special case of active streams
237 // pertaining to sonification strategy see handleIncallSonification()
239 LOGV("setPhoneState() in call state management: new state is %d", state);
240 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
241 handleIncallSonification(stream, false, true);
245 // store previous phone state for management of sonification strategy below
246 int oldState = mPhoneState;
250 // are we entering or starting a call
251 if (!isStateInCall(oldState) && isStateInCall(state)) {
252 LOGV(" Entering call in setPhoneState()");
253 // force routing command to audio hardware when starting a call
254 // even if no device change is needed
256 } else if (isStateInCall(oldState) && !isStateInCall(state)) {
257 LOGV(" Exiting call in setPhoneState()");
258 // force routing command to audio hardware when exiting a call
259 // even if no device change is needed
261 } else if (isStateInCall(state) && (state != oldState)) {
262 LOGV(" Switching between telephony and VoIP in setPhoneState()");
263 // force routing command to audio hardware when switching between telephony and VoIP
264 // even if no device change is needed
268 // check for device and output changes triggered by new phone state
269 newDevice = getNewDevice(mHardwareOutput, false);
272 checkOutputForAllStrategies();
274 updateDeviceForStrategy();
276 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mHardwareOutput);
278 // force routing command to audio hardware when ending call
279 // even if no device change is needed
280 if (isStateInCall(oldState) && newDevice == 0) {
281 newDevice = hwOutputDesc->device();
284 // when changing from ring tone to in call mode, mute the ringing tone
285 // immediately and delay the route change to avoid sending the ring tone
286 // tail into the earpiece or headset.
288 if (isStateInCall(state) && oldState == AudioSystem::MODE_RINGTONE) {
289 // delay the device change command by twice the output latency to have some margin
290 // and be sure that audio buffers not yet affected by the mute are out when
291 // we actually apply the route change
292 delayMs = hwOutputDesc->mLatency*2;
293 setStreamMute(AudioSystem::RING, true, mHardwareOutput);
296 // change routing is necessary
297 setOutputDevice(mHardwareOutput, newDevice, force, delayMs);
299 // if entering in call state, handle special case of active streams
300 // pertaining to sonification strategy see handleIncallSonification()
301 if (isStateInCall(state)) {
302 LOGV("setPhoneState() in call state management: new state is %d", state);
303 // unmute the ringing tone after a sufficient delay if it was muted before
304 // setting output device above
305 if (oldState == AudioSystem::MODE_RINGTONE) {
306 setStreamMute(AudioSystem::RING, false, mHardwareOutput, MUTE_TIME_MS);
308 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
309 handleIncallSonification(stream, true, true);
313 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE
314 if (state == AudioSystem::MODE_RINGTONE &&
315 isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) {
316 mLimitRingtoneVolume = true;
318 mLimitRingtoneVolume = false;
322 void AudioPolicyManagerBase::setRingerMode(uint32_t mode, uint32_t mask)
324 LOGV("setRingerMode() mode %x, mask %x", mode, mask);
329 void AudioPolicyManagerBase::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config)
331 LOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState);
333 bool forceVolumeReeval = false;
335 case AudioSystem::FOR_COMMUNICATION:
336 if (config != AudioSystem::FORCE_SPEAKER && config != AudioSystem::FORCE_BT_SCO &&
337 config != AudioSystem::FORCE_NONE) {
338 LOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config);
341 forceVolumeReeval = true;
342 mForceUse[usage] = config;
344 case AudioSystem::FOR_MEDIA:
345 if (config != AudioSystem::FORCE_HEADPHONES && config != AudioSystem::FORCE_BT_A2DP &&
346 config != AudioSystem::FORCE_WIRED_ACCESSORY &&
347 config != AudioSystem::FORCE_ANALOG_DOCK &&
348 config != AudioSystem::FORCE_DIGITAL_DOCK && config != AudioSystem::FORCE_NONE) {
349 LOGW("setForceUse() invalid config %d for FOR_MEDIA", config);
352 mForceUse[usage] = config;
354 case AudioSystem::FOR_RECORD:
355 if (config != AudioSystem::FORCE_BT_SCO && config != AudioSystem::FORCE_WIRED_ACCESSORY &&
356 config != AudioSystem::FORCE_NONE) {
357 LOGW("setForceUse() invalid config %d for FOR_RECORD", config);
360 mForceUse[usage] = config;
362 case AudioSystem::FOR_DOCK:
363 if (config != AudioSystem::FORCE_NONE && config != AudioSystem::FORCE_BT_CAR_DOCK &&
364 config != AudioSystem::FORCE_BT_DESK_DOCK &&
365 config != AudioSystem::FORCE_WIRED_ACCESSORY &&
366 config != AudioSystem::FORCE_ANALOG_DOCK &&
367 config != AudioSystem::FORCE_DIGITAL_DOCK) {
368 LOGW("setForceUse() invalid config %d for FOR_DOCK", config);
370 forceVolumeReeval = true;
371 mForceUse[usage] = config;
374 LOGW("setForceUse() invalid usage %d", usage);
378 // check for device and output changes triggered by new phone state
379 uint32_t newDevice = getNewDevice(mHardwareOutput, false);
382 checkOutputForAllStrategies();
384 updateDeviceForStrategy();
385 setOutputDevice(mHardwareOutput, newDevice);
386 if (forceVolumeReeval) {
387 applyStreamVolumes(mHardwareOutput, newDevice, 0, true);
390 audio_io_handle_t activeInput = getActiveInput();
391 if (activeInput != 0) {
392 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
393 newDevice = getDeviceForInputSource(inputDesc->mInputSource);
394 if (newDevice != inputDesc->mDevice) {
395 LOGV("setForceUse() changing device from %x to %x for input %d",
396 inputDesc->mDevice, newDevice, activeInput);
397 inputDesc->mDevice = newDevice;
398 AudioParameter param = AudioParameter();
399 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
400 mpClientInterface->setParameters(activeInput, param.toString());
406 AudioSystem::forced_config AudioPolicyManagerBase::getForceUse(AudioSystem::force_use usage)
408 return mForceUse[usage];
411 void AudioPolicyManagerBase::setSystemProperty(const char* property, const char* value)
413 LOGV("setSystemProperty() property %s, value %s", property, value);
414 if (strcmp(property, "ro.camera.sound.forced") == 0) {
416 LOGV("ENFORCED_AUDIBLE cannot be muted");
417 mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = false;
419 LOGV("ENFORCED_AUDIBLE can be muted");
420 mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = true;
425 audio_io_handle_t AudioPolicyManagerBase::getOutput(AudioSystem::stream_type stream,
426 uint32_t samplingRate,
429 AudioSystem::output_flags flags)
431 audio_io_handle_t output = 0;
432 uint32_t latency = 0;
433 routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream);
434 uint32_t device = getDeviceForStrategy(strategy);
435 LOGV("getOutput() stream %d, samplingRate %d, format %d, channels %x, flags %x", stream, samplingRate, format, channels, flags);
437 #ifdef AUDIO_POLICY_TEST
438 if (mCurOutput != 0) {
439 LOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channels %x, mDirectOutput %d",
440 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput);
442 if (mTestOutputs[mCurOutput] == 0) {
443 LOGV("getOutput() opening test output");
444 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
445 outputDesc->mDevice = mTestDevice;
446 outputDesc->mSamplingRate = mTestSamplingRate;
447 outputDesc->mFormat = mTestFormat;
448 outputDesc->mChannels = mTestChannels;
449 outputDesc->mLatency = mTestLatencyMs;
450 outputDesc->mFlags = (AudioSystem::output_flags)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0);
451 outputDesc->mRefCount[stream] = 0;
452 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(&outputDesc->mDevice,
453 &outputDesc->mSamplingRate,
454 &outputDesc->mFormat,
455 &outputDesc->mChannels,
456 &outputDesc->mLatency,
458 if (mTestOutputs[mCurOutput]) {
459 AudioParameter outputCmd = AudioParameter();
460 outputCmd.addInt(String8("set_id"),mCurOutput);
461 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString());
462 addOutput(mTestOutputs[mCurOutput], outputDesc);
465 return mTestOutputs[mCurOutput];
467 #endif //AUDIO_POLICY_TEST
469 // open a direct output if required by specified parameters
470 if (needsDirectOuput(stream, samplingRate, format, channels, flags, device)) {
472 LOGV("getOutput() opening direct output device %x", device);
473 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
474 outputDesc->mDevice = device;
475 outputDesc->mSamplingRate = samplingRate;
476 outputDesc->mFormat = format;
477 outputDesc->mChannels = channels;
478 outputDesc->mLatency = 0;
479 outputDesc->mFlags = (AudioSystem::output_flags)(flags | AudioSystem::OUTPUT_FLAG_DIRECT);
480 outputDesc->mRefCount[stream] = 0;
481 outputDesc->mStopTime[stream] = 0;
482 output = mpClientInterface->openOutput(&outputDesc->mDevice,
483 &outputDesc->mSamplingRate,
484 &outputDesc->mFormat,
485 &outputDesc->mChannels,
486 &outputDesc->mLatency,
489 // only accept an output with the requeted parameters
491 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) ||
492 (format != 0 && format != outputDesc->mFormat) ||
493 (channels != 0 && channels != outputDesc->mChannels)) {
494 LOGV("getOutput() failed opening direct output: samplingRate %d, format %d, channels %d",
495 samplingRate, format, channels);
497 mpClientInterface->closeOutput(output);
502 addOutput(output, outputDesc);
506 if (channels != 0 && channels != AudioSystem::CHANNEL_OUT_MONO &&
507 channels != AudioSystem::CHANNEL_OUT_STEREO) {
510 // open a non direct output
512 // get which output is suitable for the specified stream. The actual routing change will happen
513 // when startOutput() will be called
514 uint32_t a2dpDevice = device & AudioSystem::DEVICE_OUT_ALL_A2DP;
515 if (AudioSystem::popCount((AudioSystem::audio_devices)device) == 2) {
517 if (a2dpUsedForSonification() && a2dpDevice != 0) {
518 // if playing on 2 devices among which one is A2DP, use duplicated output
519 LOGV("getOutput() using duplicated output");
520 LOGW_IF((mA2dpOutput == 0), "getOutput() A2DP device in multiple %x selected but A2DP output not opened", device);
521 output = mDuplicatedOutput;
525 // if playing on 2 devices among which none is A2DP, use hardware output
526 output = mHardwareOutput;
528 LOGV("getOutput() using output %d for 2 devices %x", output, device);
531 if (a2dpDevice != 0) {
532 // if playing on A2DP device, use a2dp output
533 LOGW_IF((mA2dpOutput == 0), "getOutput() A2DP device %x selected but A2DP output not opened", device);
534 output = mA2dpOutput;
538 // if playing on not A2DP device, use hardware output
539 output = mHardwareOutput;
544 LOGW_IF((output ==0), "getOutput() could not find output for stream %d, samplingRate %d, format %d, channels %x, flags %x",
545 stream, samplingRate, format, channels, flags);
550 status_t AudioPolicyManagerBase::startOutput(audio_io_handle_t output,
551 AudioSystem::stream_type stream,
554 LOGV("startOutput() output %d, stream %d, session %d", output, stream, session);
555 ssize_t index = mOutputs.indexOfKey(output);
557 LOGW("startOutput() unknow output %d", output);
561 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
562 routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream);
565 if (mA2dpOutput != 0 && !a2dpUsedForSonification() && strategy == STRATEGY_SONIFICATION) {
566 setStrategyMute(STRATEGY_MEDIA, true, mA2dpOutput);
570 // incremenent usage count for this stream on the requested output:
571 // NOTE that the usage count is the same for duplicated output and hardware output which is
572 // necassary for a correct control of hardware output routing by startOutput() and stopOutput()
573 outputDesc->changeRefCount(stream, 1);
575 setOutputDevice(output, getNewDevice(output));
577 // handle special case for sonification while in call
579 handleIncallSonification(stream, true, false);
582 // apply volume rules for current stream and device if necessary
583 checkAndSetVolume(stream, mStreams[stream].mIndexCur, output, outputDesc->device());
588 status_t AudioPolicyManagerBase::stopOutput(audio_io_handle_t output,
589 AudioSystem::stream_type stream,
592 LOGV("stopOutput() output %d, stream %d, session %d", output, stream, session);
593 ssize_t index = mOutputs.indexOfKey(output);
595 LOGW("stopOutput() unknow output %d", output);
599 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
600 routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream);
602 // handle special case for sonification while in call
604 handleIncallSonification(stream, false, false);
607 if (outputDesc->mRefCount[stream] > 0) {
608 // decrement usage count of this stream on the output
609 outputDesc->changeRefCount(stream, -1);
610 // store time at which the stream was stopped - see isStreamActive()
611 outputDesc->mStopTime[stream] = systemTime();
613 setOutputDevice(output, getNewDevice(output), false, outputDesc->mLatency*2);
616 if (mA2dpOutput != 0 && !a2dpUsedForSonification() &&
617 strategy == STRATEGY_SONIFICATION) {
618 setStrategyMute(STRATEGY_MEDIA,
621 mOutputs.valueFor(mHardwareOutput)->mLatency*2);
624 if (output != mHardwareOutput) {
625 setOutputDevice(mHardwareOutput, getNewDevice(mHardwareOutput), true);
629 LOGW("stopOutput() refcount is already 0 for output %d", output);
630 return INVALID_OPERATION;
634 void AudioPolicyManagerBase::releaseOutput(audio_io_handle_t output)
636 LOGV("releaseOutput() %d", output);
637 ssize_t index = mOutputs.indexOfKey(output);
639 LOGW("releaseOutput() releasing unknown output %d", output);
643 #ifdef AUDIO_POLICY_TEST
644 int testIndex = testOutputIndex(output);
645 if (testIndex != 0) {
646 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
647 if (outputDesc->refCount() == 0) {
648 mpClientInterface->closeOutput(output);
649 delete mOutputs.valueAt(index);
650 mOutputs.removeItem(output);
651 mTestOutputs[testIndex] = 0;
655 #endif //AUDIO_POLICY_TEST
657 if (mOutputs.valueAt(index)->mFlags & AudioSystem::OUTPUT_FLAG_DIRECT) {
658 mpClientInterface->closeOutput(output);
659 delete mOutputs.valueAt(index);
660 mOutputs.removeItem(output);
664 audio_io_handle_t AudioPolicyManagerBase::getInput(int inputSource,
665 uint32_t samplingRate,
668 AudioSystem::audio_in_acoustics acoustics)
670 audio_io_handle_t input = 0;
671 uint32_t device = getDeviceForInputSource(inputSource);
673 LOGV("getInput() inputSource %d, samplingRate %d, format %d, channels %x, acoustics %x", inputSource, samplingRate, format, channels, acoustics);
679 // adapt channel selection to input source
680 switch(inputSource) {
681 case AUDIO_SOURCE_VOICE_UPLINK:
682 channels = AudioSystem::CHANNEL_IN_VOICE_UPLINK;
684 case AUDIO_SOURCE_VOICE_DOWNLINK:
685 channels = AudioSystem::CHANNEL_IN_VOICE_DNLINK;
687 case AUDIO_SOURCE_VOICE_CALL:
688 channels = (AudioSystem::CHANNEL_IN_VOICE_UPLINK | AudioSystem::CHANNEL_IN_VOICE_DNLINK);
694 AudioInputDescriptor *inputDesc = new AudioInputDescriptor();
696 inputDesc->mInputSource = inputSource;
697 inputDesc->mDevice = device;
698 inputDesc->mSamplingRate = samplingRate;
699 inputDesc->mFormat = format;
700 inputDesc->mChannels = channels;
701 inputDesc->mAcoustics = acoustics;
702 inputDesc->mRefCount = 0;
703 input = mpClientInterface->openInput(&inputDesc->mDevice,
704 &inputDesc->mSamplingRate,
706 &inputDesc->mChannels,
707 inputDesc->mAcoustics);
709 // only accept input with the exact requested set of parameters
711 (samplingRate != inputDesc->mSamplingRate) ||
712 (format != inputDesc->mFormat) ||
713 (channels != inputDesc->mChannels)) {
714 LOGV("getInput() failed opening input: samplingRate %d, format %d, channels %d",
715 samplingRate, format, channels);
717 mpClientInterface->closeInput(input);
722 mInputs.add(input, inputDesc);
726 status_t AudioPolicyManagerBase::startInput(audio_io_handle_t input)
728 LOGV("startInput() input %d", input);
729 ssize_t index = mInputs.indexOfKey(input);
731 LOGW("startInput() unknow input %d", input);
734 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
736 #ifdef AUDIO_POLICY_TEST
738 #endif //AUDIO_POLICY_TEST
740 // refuse 2 active AudioRecord clients at the same time
741 if (getActiveInput() != 0) {
742 LOGW("startInput() input %d failed: other input already started", input);
743 return INVALID_OPERATION;
747 AudioParameter param = AudioParameter();
748 param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice);
750 param.addInt(String8(AudioParameter::keyInputSource), (int)inputDesc->mInputSource);
751 LOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource);
753 mpClientInterface->setParameters(input, param.toString());
755 inputDesc->mRefCount = 1;
759 status_t AudioPolicyManagerBase::stopInput(audio_io_handle_t input)
761 LOGV("stopInput() input %d", input);
762 ssize_t index = mInputs.indexOfKey(input);
764 LOGW("stopInput() unknow input %d", input);
767 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
769 if (inputDesc->mRefCount == 0) {
770 LOGW("stopInput() input %d already stopped", input);
771 return INVALID_OPERATION;
773 AudioParameter param = AudioParameter();
774 param.addInt(String8(AudioParameter::keyRouting), 0);
775 mpClientInterface->setParameters(input, param.toString());
776 inputDesc->mRefCount = 0;
781 void AudioPolicyManagerBase::releaseInput(audio_io_handle_t input)
783 LOGV("releaseInput() %d", input);
784 ssize_t index = mInputs.indexOfKey(input);
786 LOGW("releaseInput() releasing unknown input %d", input);
789 mpClientInterface->closeInput(input);
790 delete mInputs.valueAt(index);
791 mInputs.removeItem(input);
792 LOGV("releaseInput() exit");
795 void AudioPolicyManagerBase::initStreamVolume(AudioSystem::stream_type stream,
799 LOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax);
800 if (indexMin < 0 || indexMin >= indexMax) {
801 LOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax);
804 mStreams[stream].mIndexMin = indexMin;
805 mStreams[stream].mIndexMax = indexMax;
808 status_t AudioPolicyManagerBase::setStreamVolumeIndex(AudioSystem::stream_type stream, int index)
811 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) {
815 // Force max volume if stream cannot be muted
816 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax;
818 LOGV("setStreamVolumeIndex() stream %d, index %d", stream, index);
819 mStreams[stream].mIndexCur = index;
821 // compute and apply stream volume on all outputs according to connected device
822 status_t status = NO_ERROR;
823 for (size_t i = 0; i < mOutputs.size(); i++) {
824 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), mOutputs.valueAt(i)->device());
825 if (volStatus != NO_ERROR) {
832 status_t AudioPolicyManagerBase::getStreamVolumeIndex(AudioSystem::stream_type stream, int *index)
837 LOGV("getStreamVolumeIndex() stream %d", stream);
838 *index = mStreams[stream].mIndexCur;
842 audio_io_handle_t AudioPolicyManagerBase::getOutputForEffect(effect_descriptor_t *desc)
844 LOGV("getOutputForEffect()");
845 // apply simple rule where global effects are attached to the same output as MUSIC streams
846 return getOutput(AudioSystem::MUSIC);
849 status_t AudioPolicyManagerBase::registerEffect(effect_descriptor_t *desc,
850 audio_io_handle_t output,
855 ssize_t index = mOutputs.indexOfKey(output);
857 LOGW("registerEffect() unknown output %d", output);
858 return INVALID_OPERATION;
861 if (mTotalEffectsCpuLoad + desc->cpuLoad > getMaxEffectsCpuLoad()) {
862 LOGW("registerEffect() CPU Load limit exceeded for Fx %s, CPU %f MIPS",
863 desc->name, (float)desc->cpuLoad/10);
864 return INVALID_OPERATION;
866 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) {
867 LOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB",
868 desc->name, desc->memoryUsage);
869 return INVALID_OPERATION;
871 mTotalEffectsCpuLoad += desc->cpuLoad;
872 mTotalEffectsMemory += desc->memoryUsage;
873 LOGV("registerEffect() effect %s, output %d, strategy %d session %d id %d",
874 desc->name, output, strategy, session, id);
876 LOGV("registerEffect() CPU %d, memory %d", desc->cpuLoad, desc->memoryUsage);
877 LOGV(" total CPU %d, total memory %d", mTotalEffectsCpuLoad, mTotalEffectsMemory);
879 EffectDescriptor *pDesc = new EffectDescriptor();
880 memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t));
881 pDesc->mOutput = output;
882 pDesc->mStrategy = (routing_strategy)strategy;
883 pDesc->mSession = session;
884 mEffects.add(id, pDesc);
889 status_t AudioPolicyManagerBase::unregisterEffect(int id)
891 ssize_t index = mEffects.indexOfKey(id);
893 LOGW("unregisterEffect() unknown effect ID %d", id);
894 return INVALID_OPERATION;
897 EffectDescriptor *pDesc = mEffects.valueAt(index);
899 if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) {
900 LOGW("unregisterEffect() CPU load %d too high for total %d",
901 pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad);
902 pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad;
904 mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad;
905 if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) {
906 LOGW("unregisterEffect() memory %d too big for total %d",
907 pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
908 pDesc->mDesc.memoryUsage = mTotalEffectsMemory;
910 mTotalEffectsMemory -= pDesc->mDesc.memoryUsage;
911 LOGV("unregisterEffect() effect %s, ID %d, CPU %d, memory %d",
912 pDesc->mDesc.name, id, pDesc->mDesc.cpuLoad, pDesc->mDesc.memoryUsage);
913 LOGV(" total CPU %d, total memory %d", mTotalEffectsCpuLoad, mTotalEffectsMemory);
915 mEffects.removeItem(id);
921 bool AudioPolicyManagerBase::isStreamActive(int stream, uint32_t inPastMs) const
923 nsecs_t sysTime = systemTime();
924 for (size_t i = 0; i < mOutputs.size(); i++) {
925 if (mOutputs.valueAt(i)->mRefCount[stream] != 0 ||
926 ns2ms(sysTime - mOutputs.valueAt(i)->mStopTime[stream]) < inPastMs) {
934 status_t AudioPolicyManagerBase::dump(int fd)
936 const size_t SIZE = 256;
940 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this);
941 result.append(buffer);
942 snprintf(buffer, SIZE, " Hardware Output: %d\n", mHardwareOutput);
943 result.append(buffer);
945 snprintf(buffer, SIZE, " A2DP Output: %d\n", mA2dpOutput);
946 result.append(buffer);
947 snprintf(buffer, SIZE, " Duplicated Output: %d\n", mDuplicatedOutput);
948 result.append(buffer);
949 snprintf(buffer, SIZE, " A2DP device address: %s\n", mA2dpDeviceAddress.string());
950 result.append(buffer);
952 snprintf(buffer, SIZE, " SCO device address: %s\n", mScoDeviceAddress.string());
953 result.append(buffer);
954 snprintf(buffer, SIZE, " Output devices: %08x\n", mAvailableOutputDevices);
955 result.append(buffer);
956 snprintf(buffer, SIZE, " Input devices: %08x\n", mAvailableInputDevices);
957 result.append(buffer);
958 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState);
959 result.append(buffer);
960 snprintf(buffer, SIZE, " Ringer mode: %d\n", mRingerMode);
961 result.append(buffer);
962 snprintf(buffer, SIZE, " Force use for communications %d\n", mForceUse[AudioSystem::FOR_COMMUNICATION]);
963 result.append(buffer);
964 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AudioSystem::FOR_MEDIA]);
965 result.append(buffer);
966 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AudioSystem::FOR_RECORD]);
967 result.append(buffer);
968 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AudioSystem::FOR_DOCK]);
969 result.append(buffer);
970 write(fd, result.string(), result.size());
972 snprintf(buffer, SIZE, "\nOutputs dump:\n");
973 write(fd, buffer, strlen(buffer));
974 for (size_t i = 0; i < mOutputs.size(); i++) {
975 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i));
976 write(fd, buffer, strlen(buffer));
977 mOutputs.valueAt(i)->dump(fd);
980 snprintf(buffer, SIZE, "\nInputs dump:\n");
981 write(fd, buffer, strlen(buffer));
982 for (size_t i = 0; i < mInputs.size(); i++) {
983 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i));
984 write(fd, buffer, strlen(buffer));
985 mInputs.valueAt(i)->dump(fd);
988 snprintf(buffer, SIZE, "\nStreams dump:\n");
989 write(fd, buffer, strlen(buffer));
990 snprintf(buffer, SIZE, " Stream Index Min Index Max Index Cur Can be muted\n");
991 write(fd, buffer, strlen(buffer));
992 for (size_t i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
993 snprintf(buffer, SIZE, " %02d", i);
994 mStreams[i].dump(buffer + 3, SIZE);
995 write(fd, buffer, strlen(buffer));
998 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n",
999 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory);
1000 write(fd, buffer, strlen(buffer));
1002 snprintf(buffer, SIZE, "Registered effects:\n");
1003 write(fd, buffer, strlen(buffer));
1004 for (size_t i = 0; i < mEffects.size(); i++) {
1005 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i));
1006 write(fd, buffer, strlen(buffer));
1007 mEffects.valueAt(i)->dump(fd);
1014 // ----------------------------------------------------------------------------
1015 // AudioPolicyManagerBase
1016 // ----------------------------------------------------------------------------
1018 AudioPolicyManagerBase::AudioPolicyManagerBase(AudioPolicyClientInterface *clientInterface)
1020 #ifdef AUDIO_POLICY_TEST
1022 #endif //AUDIO_POLICY_TEST
1023 mPhoneState(AudioSystem::MODE_NORMAL), mRingerMode(0),
1024 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f),
1025 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0),
1026 mA2dpSuspended(false)
1028 mpClientInterface = clientInterface;
1030 for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) {
1031 mForceUse[i] = AudioSystem::FORCE_NONE;
1034 initializeVolumeCurves();
1036 // devices available by default are speaker, ear piece and microphone
1037 mAvailableOutputDevices = AudioSystem::DEVICE_OUT_EARPIECE |
1038 AudioSystem::DEVICE_OUT_SPEAKER;
1039 mAvailableInputDevices = AudioSystem::DEVICE_IN_BUILTIN_MIC;
1043 mDuplicatedOutput = 0;
1044 mA2dpDeviceAddress = String8("");
1046 mScoDeviceAddress = String8("");
1048 // open hardware output
1049 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
1050 outputDesc->mDevice = (uint32_t)AudioSystem::DEVICE_OUT_SPEAKER;
1051 mHardwareOutput = mpClientInterface->openOutput(&outputDesc->mDevice,
1052 &outputDesc->mSamplingRate,
1053 &outputDesc->mFormat,
1054 &outputDesc->mChannels,
1055 &outputDesc->mLatency,
1056 outputDesc->mFlags);
1058 if (mHardwareOutput == 0) {
1059 LOGE("Failed to initialize hardware output stream, samplingRate: %d, format %d, channels %d",
1060 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannels);
1062 addOutput(mHardwareOutput, outputDesc);
1063 setOutputDevice(mHardwareOutput, (uint32_t)AudioSystem::DEVICE_OUT_SPEAKER, true);
1064 //TODO: configure audio effect output stage here
1067 updateDeviceForStrategy();
1068 #ifdef AUDIO_POLICY_TEST
1069 if (mHardwareOutput != 0) {
1070 AudioParameter outputCmd = AudioParameter();
1071 outputCmd.addInt(String8("set_id"), 0);
1072 mpClientInterface->setParameters(mHardwareOutput, outputCmd.toString());
1074 mTestDevice = AudioSystem::DEVICE_OUT_SPEAKER;
1075 mTestSamplingRate = 44100;
1076 mTestFormat = AudioSystem::PCM_16_BIT;
1077 mTestChannels = AudioSystem::CHANNEL_OUT_STEREO;
1080 mDirectOutput = false;
1081 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1082 mTestOutputs[i] = 0;
1085 const size_t SIZE = 256;
1087 snprintf(buffer, SIZE, "AudioPolicyManagerTest");
1088 run(buffer, ANDROID_PRIORITY_AUDIO);
1090 #endif //AUDIO_POLICY_TEST
1093 AudioPolicyManagerBase::~AudioPolicyManagerBase()
1095 #ifdef AUDIO_POLICY_TEST
1097 #endif //AUDIO_POLICY_TEST
1098 for (size_t i = 0; i < mOutputs.size(); i++) {
1099 mpClientInterface->closeOutput(mOutputs.keyAt(i));
1100 delete mOutputs.valueAt(i);
1103 for (size_t i = 0; i < mInputs.size(); i++) {
1104 mpClientInterface->closeInput(mInputs.keyAt(i));
1105 delete mInputs.valueAt(i);
1110 status_t AudioPolicyManagerBase::initCheck()
1112 return (mHardwareOutput == 0) ? NO_INIT : NO_ERROR;
1115 #ifdef AUDIO_POLICY_TEST
1116 bool AudioPolicyManagerBase::threadLoop()
1118 LOGV("entering threadLoop()");
1119 while (!exitPending())
1125 Mutex::Autolock _l(mLock);
1126 mWaitWorkCV.waitRelative(mLock, milliseconds(50));
1128 command = mpClientInterface->getParameters(0, String8("test_cmd_policy"));
1129 AudioParameter param = AudioParameter(command);
1131 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR &&
1133 LOGV("Test command %s received", command.string());
1135 if (param.get(String8("target"), target) != NO_ERROR) {
1138 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) {
1139 param.remove(String8("test_cmd_policy_output"));
1140 mCurOutput = valueInt;
1142 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) {
1143 param.remove(String8("test_cmd_policy_direct"));
1144 if (value == "false") {
1145 mDirectOutput = false;
1146 } else if (value == "true") {
1147 mDirectOutput = true;
1150 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) {
1151 param.remove(String8("test_cmd_policy_input"));
1152 mTestInput = valueInt;
1155 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) {
1156 param.remove(String8("test_cmd_policy_format"));
1157 int format = AudioSystem::INVALID_FORMAT;
1158 if (value == "PCM 16 bits") {
1159 format = AudioSystem::PCM_16_BIT;
1160 } else if (value == "PCM 8 bits") {
1161 format = AudioSystem::PCM_8_BIT;
1162 } else if (value == "Compressed MP3") {
1163 format = AudioSystem::MP3;
1165 if (format != AudioSystem::INVALID_FORMAT) {
1166 if (target == "Manager") {
1167 mTestFormat = format;
1168 } else if (mTestOutputs[mCurOutput] != 0) {
1169 AudioParameter outputParam = AudioParameter();
1170 outputParam.addInt(String8("format"), format);
1171 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1175 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) {
1176 param.remove(String8("test_cmd_policy_channels"));
1179 if (value == "Channels Stereo") {
1180 channels = AudioSystem::CHANNEL_OUT_STEREO;
1181 } else if (value == "Channels Mono") {
1182 channels = AudioSystem::CHANNEL_OUT_MONO;
1184 if (channels != 0) {
1185 if (target == "Manager") {
1186 mTestChannels = channels;
1187 } else if (mTestOutputs[mCurOutput] != 0) {
1188 AudioParameter outputParam = AudioParameter();
1189 outputParam.addInt(String8("channels"), channels);
1190 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1194 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) {
1195 param.remove(String8("test_cmd_policy_sampleRate"));
1196 if (valueInt >= 0 && valueInt <= 96000) {
1197 int samplingRate = valueInt;
1198 if (target == "Manager") {
1199 mTestSamplingRate = samplingRate;
1200 } else if (mTestOutputs[mCurOutput] != 0) {
1201 AudioParameter outputParam = AudioParameter();
1202 outputParam.addInt(String8("sampling_rate"), samplingRate);
1203 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1208 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) {
1209 param.remove(String8("test_cmd_policy_reopen"));
1211 mpClientInterface->closeOutput(mHardwareOutput);
1212 delete mOutputs.valueFor(mHardwareOutput);
1213 mOutputs.removeItem(mHardwareOutput);
1215 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
1216 outputDesc->mDevice = (uint32_t)AudioSystem::DEVICE_OUT_SPEAKER;
1217 mHardwareOutput = mpClientInterface->openOutput(&outputDesc->mDevice,
1218 &outputDesc->mSamplingRate,
1219 &outputDesc->mFormat,
1220 &outputDesc->mChannels,
1221 &outputDesc->mLatency,
1222 outputDesc->mFlags);
1223 if (mHardwareOutput == 0) {
1224 LOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d",
1225 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannels);
1227 AudioParameter outputCmd = AudioParameter();
1228 outputCmd.addInt(String8("set_id"), 0);
1229 mpClientInterface->setParameters(mHardwareOutput, outputCmd.toString());
1230 addOutput(mHardwareOutput, outputDesc);
1235 mpClientInterface->setParameters(0, String8("test_cmd_policy="));
1241 void AudioPolicyManagerBase::exit()
1244 AutoMutex _l(mLock);
1246 mWaitWorkCV.signal();
1248 requestExitAndWait();
1251 int AudioPolicyManagerBase::testOutputIndex(audio_io_handle_t output)
1253 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1254 if (output == mTestOutputs[i]) return i;
1258 #endif //AUDIO_POLICY_TEST
1262 void AudioPolicyManagerBase::addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc)
1264 outputDesc->mId = id;
1265 mOutputs.add(id, outputDesc);
1270 status_t AudioPolicyManagerBase::handleA2dpConnection(AudioSystem::audio_devices device,
1271 const char *device_address)
1273 // when an A2DP device is connected, open an A2DP and a duplicated output
1274 LOGV("opening A2DP output for device %s", device_address);
1275 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
1276 outputDesc->mDevice = device;
1277 mA2dpOutput = mpClientInterface->openOutput(&outputDesc->mDevice,
1278 &outputDesc->mSamplingRate,
1279 &outputDesc->mFormat,
1280 &outputDesc->mChannels,
1281 &outputDesc->mLatency,
1282 outputDesc->mFlags);
1284 // add A2DP output descriptor
1285 addOutput(mA2dpOutput, outputDesc);
1287 //TODO: configure audio effect output stage here
1289 // set initial stream volume for A2DP device
1290 applyStreamVolumes(mA2dpOutput, device);
1291 if (a2dpUsedForSonification()) {
1292 mDuplicatedOutput = mpClientInterface->openDuplicateOutput(mA2dpOutput, mHardwareOutput);
1294 if (mDuplicatedOutput != 0 ||
1295 !a2dpUsedForSonification()) {
1296 // If both A2DP and duplicated outputs are open, send device address to A2DP hardware
1298 AudioParameter param;
1299 param.add(String8("a2dp_sink_address"), String8(device_address));
1300 mpClientInterface->setParameters(mA2dpOutput, param.toString());
1301 mA2dpDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
1303 if (a2dpUsedForSonification()) {
1304 // add duplicated output descriptor
1305 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor();
1306 dupOutputDesc->mOutput1 = mOutputs.valueFor(mHardwareOutput);
1307 dupOutputDesc->mOutput2 = mOutputs.valueFor(mA2dpOutput);
1308 dupOutputDesc->mSamplingRate = outputDesc->mSamplingRate;
1309 dupOutputDesc->mFormat = outputDesc->mFormat;
1310 dupOutputDesc->mChannels = outputDesc->mChannels;
1311 dupOutputDesc->mLatency = outputDesc->mLatency;
1312 addOutput(mDuplicatedOutput, dupOutputDesc);
1313 applyStreamVolumes(mDuplicatedOutput, device);
1316 LOGW("getOutput() could not open duplicated output for %d and %d",
1317 mHardwareOutput, mA2dpOutput);
1318 mpClientInterface->closeOutput(mA2dpOutput);
1319 mOutputs.removeItem(mA2dpOutput);
1325 LOGW("setDeviceConnectionState() could not open A2DP output for device %x", device);
1329 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mHardwareOutput);
1331 if (!a2dpUsedForSonification()) {
1332 // mute music on A2DP output if a notification or ringtone is playing
1333 uint32_t refCount = hwOutputDesc->strategyRefCount(STRATEGY_SONIFICATION);
1334 for (uint32_t i = 0; i < refCount; i++) {
1335 setStrategyMute(STRATEGY_MEDIA, true, mA2dpOutput);
1339 mA2dpSuspended = false;
1344 status_t AudioPolicyManagerBase::handleA2dpDisconnection(AudioSystem::audio_devices device,
1345 const char *device_address)
1347 if (mA2dpOutput == 0) {
1348 LOGW("setDeviceConnectionState() disconnecting A2DP and no A2DP output!");
1349 return INVALID_OPERATION;
1352 if (mA2dpDeviceAddress != device_address) {
1353 LOGW("setDeviceConnectionState() disconnecting unknow A2DP sink address %s", device_address);
1354 return INVALID_OPERATION;
1357 // mute media strategy to avoid outputting sound on hardware output while music stream
1358 // is switched from A2DP output and before music is paused by music application
1359 setStrategyMute(STRATEGY_MEDIA, true, mHardwareOutput);
1360 setStrategyMute(STRATEGY_MEDIA, false, mHardwareOutput, MUTE_TIME_MS);
1362 if (!a2dpUsedForSonification()) {
1363 // unmute music on A2DP output if a notification or ringtone is playing
1364 uint32_t refCount = mOutputs.valueFor(mHardwareOutput)->strategyRefCount(STRATEGY_SONIFICATION);
1365 for (uint32_t i = 0; i < refCount; i++) {
1366 setStrategyMute(STRATEGY_MEDIA, false, mA2dpOutput);
1369 mA2dpDeviceAddress = "";
1370 mA2dpSuspended = false;
1374 void AudioPolicyManagerBase::closeA2dpOutputs()
1377 LOGV("setDeviceConnectionState() closing A2DP and duplicated output!");
1379 if (mDuplicatedOutput != 0) {
1380 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueFor(mDuplicatedOutput);
1381 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mHardwareOutput);
1382 // As all active tracks on duplicated output will be deleted,
1383 // and as they were also referenced on hardware output, the reference
1384 // count for their stream type must be adjusted accordingly on
1386 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
1387 int refCount = dupOutputDesc->mRefCount[i];
1388 hwOutputDesc->changeRefCount((AudioSystem::stream_type)i,-refCount);
1391 mpClientInterface->closeOutput(mDuplicatedOutput);
1392 delete mOutputs.valueFor(mDuplicatedOutput);
1393 mOutputs.removeItem(mDuplicatedOutput);
1394 mDuplicatedOutput = 0;
1396 if (mA2dpOutput != 0) {
1397 AudioParameter param;
1398 param.add(String8("closing"), String8("true"));
1399 mpClientInterface->setParameters(mA2dpOutput, param.toString());
1401 mpClientInterface->closeOutput(mA2dpOutput);
1402 delete mOutputs.valueFor(mA2dpOutput);
1403 mOutputs.removeItem(mA2dpOutput);
1408 void AudioPolicyManagerBase::checkOutputForStrategy(routing_strategy strategy)
1410 uint32_t prevDevice = getDeviceForStrategy(strategy);
1411 uint32_t curDevice = getDeviceForStrategy(strategy, false);
1412 bool a2dpWasUsed = AudioSystem::isA2dpDevice((AudioSystem::audio_devices)(prevDevice & ~AudioSystem::DEVICE_OUT_SPEAKER));
1413 bool a2dpIsUsed = AudioSystem::isA2dpDevice((AudioSystem::audio_devices)(curDevice & ~AudioSystem::DEVICE_OUT_SPEAKER));
1414 audio_io_handle_t srcOutput = 0;
1415 audio_io_handle_t dstOutput = 0;
1417 if (a2dpWasUsed && !a2dpIsUsed) {
1418 bool dupUsed = a2dpUsedForSonification() && a2dpWasUsed && (AudioSystem::popCount(prevDevice) == 2);
1419 dstOutput = mHardwareOutput;
1421 LOGV("checkOutputForStrategy() moving strategy %d from duplicated", strategy);
1422 srcOutput = mDuplicatedOutput;
1424 LOGV("checkOutputForStrategy() moving strategy %d from a2dp", strategy);
1425 srcOutput = mA2dpOutput;
1428 if (a2dpIsUsed && !a2dpWasUsed) {
1429 bool dupUsed = a2dpUsedForSonification() && a2dpIsUsed && (AudioSystem::popCount(curDevice) == 2);
1430 srcOutput = mHardwareOutput;
1432 LOGV("checkOutputForStrategy() moving strategy %d to duplicated", strategy);
1433 dstOutput = mDuplicatedOutput;
1435 LOGV("checkOutputForStrategy() moving strategy %d to a2dp", strategy);
1436 dstOutput = mA2dpOutput;
1440 if (srcOutput != 0 && dstOutput != 0) {
1441 // Move effects associated to this strategy from previous output to new output
1442 for (size_t i = 0; i < mEffects.size(); i++) {
1443 EffectDescriptor *desc = mEffects.valueAt(i);
1444 if (desc->mSession != AudioSystem::SESSION_OUTPUT_STAGE &&
1445 desc->mStrategy == strategy &&
1446 desc->mOutput == srcOutput) {
1447 LOGV("checkOutputForStrategy() moving effect %d to output %d", mEffects.keyAt(i), dstOutput);
1448 mpClientInterface->moveEffects(desc->mSession, srcOutput, dstOutput);
1449 desc->mOutput = dstOutput;
1452 // Move tracks associated to this strategy from previous output to new output
1453 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
1454 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
1455 mpClientInterface->setStreamOutput((AudioSystem::stream_type)i, dstOutput);
1461 void AudioPolicyManagerBase::checkOutputForAllStrategies()
1463 checkOutputForStrategy(STRATEGY_PHONE);
1464 checkOutputForStrategy(STRATEGY_SONIFICATION);
1465 checkOutputForStrategy(STRATEGY_MEDIA);
1466 checkOutputForStrategy(STRATEGY_DTMF);
1469 void AudioPolicyManagerBase::checkA2dpSuspend()
1471 // suspend A2DP output if:
1472 // (NOT already suspended) &&
1473 // ((SCO device is connected &&
1474 // (forced usage for communication || for record is SCO))) ||
1475 // (phone state is ringing || in call)
1477 // restore A2DP output if:
1478 // (Already suspended) &&
1479 // ((SCO device is NOT connected ||
1480 // (forced usage NOT for communication && NOT for record is SCO))) &&
1481 // (phone state is NOT ringing && NOT in call)
1483 if (mA2dpOutput == 0) {
1487 if (mA2dpSuspended) {
1488 if (((mScoDeviceAddress == "") ||
1489 ((mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO) &&
1490 (mForceUse[AudioSystem::FOR_RECORD] != AudioSystem::FORCE_BT_SCO))) &&
1491 ((mPhoneState != AudioSystem::MODE_IN_CALL) &&
1492 (mPhoneState != AudioSystem::MODE_RINGTONE))) {
1494 mpClientInterface->restoreOutput(mA2dpOutput);
1495 mA2dpSuspended = false;
1498 if (((mScoDeviceAddress != "") &&
1499 ((mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
1500 (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO))) ||
1501 ((mPhoneState == AudioSystem::MODE_IN_CALL) ||
1502 (mPhoneState == AudioSystem::MODE_RINGTONE))) {
1504 mpClientInterface->suspendOutput(mA2dpOutput);
1505 mA2dpSuspended = true;
1513 uint32_t AudioPolicyManagerBase::getNewDevice(audio_io_handle_t output, bool fromCache)
1515 uint32_t device = 0;
1517 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1518 // check the following by order of priority to request a routing change if necessary:
1519 // 1: we are in call or the strategy phone is active on the hardware output:
1520 // use device for strategy phone
1521 // 2: the strategy sonification is active on the hardware output:
1522 // use device for strategy sonification
1523 // 3: the strategy media is active on the hardware output:
1524 // use device for strategy media
1525 // 4: the strategy DTMF is active on the hardware output:
1526 // use device for strategy DTMF
1528 outputDesc->isUsedByStrategy(STRATEGY_PHONE)) {
1529 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
1530 } else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION)) {
1531 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
1532 } else if (outputDesc->isUsedByStrategy(STRATEGY_MEDIA)) {
1533 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
1534 } else if (outputDesc->isUsedByStrategy(STRATEGY_DTMF)) {
1535 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache);
1538 LOGV("getNewDevice() selected device %x", device);
1542 uint32_t AudioPolicyManagerBase::getStrategyForStream(AudioSystem::stream_type stream) {
1543 return (uint32_t)getStrategy(stream);
1546 uint32_t AudioPolicyManagerBase::getDevicesForStream(AudioSystem::stream_type stream) {
1548 // By checking the range of stream before calling getStrategy, we avoid
1549 // getStrategy's behavior for invalid streams. getStrategy would do a LOGE
1550 // and then return STRATEGY_MEDIA, but we want to return the empty set.
1551 if (stream < (AudioSystem::stream_type) 0 || stream >= AudioSystem::NUM_STREAM_TYPES) {
1554 AudioPolicyManagerBase::routing_strategy strategy = getStrategy(stream);
1555 devices = getDeviceForStrategy(strategy, true);
1560 AudioPolicyManagerBase::routing_strategy AudioPolicyManagerBase::getStrategy(
1561 AudioSystem::stream_type stream) {
1562 // stream to strategy mapping
1564 case AudioSystem::VOICE_CALL:
1565 case AudioSystem::BLUETOOTH_SCO:
1566 return STRATEGY_PHONE;
1567 case AudioSystem::RING:
1568 case AudioSystem::NOTIFICATION:
1569 case AudioSystem::ALARM:
1570 case AudioSystem::ENFORCED_AUDIBLE:
1571 return STRATEGY_SONIFICATION;
1572 case AudioSystem::DTMF:
1573 return STRATEGY_DTMF;
1575 LOGE("unknown stream type");
1576 case AudioSystem::SYSTEM:
1577 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs
1578 // while key clicks are played produces a poor result
1579 case AudioSystem::TTS:
1580 case AudioSystem::MUSIC:
1581 return STRATEGY_MEDIA;
1585 uint32_t AudioPolicyManagerBase::getDeviceForStrategy(routing_strategy strategy, bool fromCache)
1587 uint32_t device = 0;
1590 LOGV("getDeviceForStrategy() from cache strategy %d, device %x", strategy, mDeviceForStrategy[strategy]);
1591 return mDeviceForStrategy[strategy];
1597 // when off call, DTMF strategy follows the same rules as MEDIA strategy
1598 device = getDeviceForStrategy(STRATEGY_MEDIA, false);
1601 // when in call, DTMF and PHONE strategies follow the same rules
1604 case STRATEGY_PHONE:
1605 // for phone strategy, we first consider the forced use and then the available devices by order
1607 switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) {
1608 case AudioSystem::FORCE_BT_SCO:
1609 if (!isInCall() || strategy != STRATEGY_DTMF) {
1610 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
1613 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
1615 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO;
1617 // if SCO device is requested but no SCO device is available, fall back to default case
1620 default: // FORCE_NONE
1621 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADPHONE;
1623 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADSET;
1626 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
1627 if (!isInCall() && !mA2dpSuspended) {
1628 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
1630 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
1634 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_AUX_DIGITAL;
1636 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_DGTL_DOCK_HEADSET;
1638 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_ANLG_DOCK_HEADSET;
1640 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_EARPIECE;
1642 LOGE("getDeviceForStrategy() earpiece device not found");
1646 case AudioSystem::FORCE_SPEAKER:
1648 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to
1649 // A2DP speaker when forcing to speaker output
1650 if (!isInCall() && !mA2dpSuspended) {
1651 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
1655 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_AUX_DIGITAL;
1657 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_DGTL_DOCK_HEADSET;
1659 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_ANLG_DOCK_HEADSET;
1661 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
1663 LOGE("getDeviceForStrategy() speaker device not found");
1669 case STRATEGY_SONIFICATION:
1671 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
1672 // handleIncallSonification().
1674 device = getDeviceForStrategy(STRATEGY_PHONE, false);
1677 device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
1679 LOGE("getDeviceForStrategy() speaker device not found");
1681 // The second device used for sonification is the same as the device used by media strategy
1684 case STRATEGY_MEDIA: {
1685 uint32_t device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADPHONE;
1687 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADSET;
1690 if ((mA2dpOutput != 0) && !mA2dpSuspended &&
1691 (strategy != STRATEGY_SONIFICATION || a2dpUsedForSonification())) {
1693 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
1696 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
1699 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
1704 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_AUX_DIGITAL;
1707 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_DGTL_DOCK_HEADSET;
1710 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_ANLG_DOCK_HEADSET;
1713 device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
1716 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION, 0 otherwise
1719 LOGE("getDeviceForStrategy() speaker device not found");
1724 LOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
1728 LOGV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
1732 void AudioPolicyManagerBase::updateDeviceForStrategy()
1734 for (int i = 0; i < NUM_STRATEGIES; i++) {
1735 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false);
1739 void AudioPolicyManagerBase::setOutputDevice(audio_io_handle_t output, uint32_t device, bool force, int delayMs)
1741 LOGV("setOutputDevice() output %d device %x delayMs %d", output, device, delayMs);
1742 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1745 if (outputDesc->isDuplicated()) {
1746 setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs);
1747 setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs);
1751 // filter devices according to output selected
1752 if (output == mA2dpOutput) {
1753 device &= AudioSystem::DEVICE_OUT_ALL_A2DP;
1755 device &= ~AudioSystem::DEVICE_OUT_ALL_A2DP;
1759 uint32_t prevDevice = (uint32_t)outputDesc->device();
1760 // Do not change the routing if:
1761 // - the requestede device is 0
1762 // - the requested device is the same as current device and force is not specified.
1763 // Doing this check here allows the caller to call setOutputDevice() without conditions
1764 if ((device == 0 || device == prevDevice) && !force) {
1765 LOGV("setOutputDevice() setting same device %x or null device for output %d", device, output);
1769 outputDesc->mDevice = device;
1770 // mute media streams if both speaker and headset are selected
1771 if (output == mHardwareOutput && AudioSystem::popCount(device) == 2) {
1772 setStrategyMute(STRATEGY_MEDIA, true, output);
1773 // wait for the PCM output buffers to empty before proceeding with the rest of the command
1774 usleep(outputDesc->mLatency*2*1000);
1778 AudioParameter param = AudioParameter();
1779 param.addInt(String8(AudioParameter::keyRouting), (int)device);
1780 mpClientInterface->setParameters(mHardwareOutput, param.toString(), delayMs);
1781 // update stream volumes according to new device
1782 applyStreamVolumes(output, device, delayMs);
1784 // if changing from a combined headset + speaker route, unmute media streams
1785 if (output == mHardwareOutput && AudioSystem::popCount(prevDevice) == 2) {
1786 setStrategyMute(STRATEGY_MEDIA, false, output, delayMs);
1790 uint32_t AudioPolicyManagerBase::getDeviceForInputSource(int inputSource)
1794 switch(inputSource) {
1795 case AUDIO_SOURCE_DEFAULT:
1796 case AUDIO_SOURCE_MIC:
1797 case AUDIO_SOURCE_VOICE_RECOGNITION:
1798 case AUDIO_SOURCE_VOICE_COMMUNICATION:
1799 if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO &&
1800 mAvailableInputDevices & AudioSystem::DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
1801 device = AudioSystem::DEVICE_IN_BLUETOOTH_SCO_HEADSET;
1802 } else if (mAvailableInputDevices & AudioSystem::DEVICE_IN_WIRED_HEADSET) {
1803 device = AudioSystem::DEVICE_IN_WIRED_HEADSET;
1805 device = AudioSystem::DEVICE_IN_BUILTIN_MIC;
1808 case AUDIO_SOURCE_CAMCORDER:
1809 if (hasBackMicrophone()) {
1810 device = AudioSystem::DEVICE_IN_BACK_MIC;
1812 device = AudioSystem::DEVICE_IN_BUILTIN_MIC;
1815 case AUDIO_SOURCE_VOICE_UPLINK:
1816 case AUDIO_SOURCE_VOICE_DOWNLINK:
1817 case AUDIO_SOURCE_VOICE_CALL:
1818 device = AudioSystem::DEVICE_IN_VOICE_CALL;
1821 LOGW("getInput() invalid input source %d", inputSource);
1825 LOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device);
1829 audio_io_handle_t AudioPolicyManagerBase::getActiveInput()
1831 for (size_t i = 0; i < mInputs.size(); i++) {
1832 if (mInputs.valueAt(i)->mRefCount > 0) {
1833 return mInputs.keyAt(i);
1839 float AudioPolicyManagerBase::volIndexToAmpl(uint32_t device, const StreamDescriptor& streamDesc,
1841 // the volume index in the UI is relative to the min and max volume indices for this stream type
1842 int nbSteps = 1 + streamDesc.mVolIndex[StreamDescriptor::VOLMAX] -
1843 streamDesc.mVolIndex[StreamDescriptor::VOLMIN];
1844 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) /
1845 (streamDesc.mIndexMax - streamDesc.mIndexMin);
1847 // find what part of the curve this index volume belongs to, or if it's out of bounds
1849 if (volIdx < streamDesc.mVolIndex[StreamDescriptor::VOLMIN]) { // out of bounds
1851 } else if (volIdx < streamDesc.mVolIndex[StreamDescriptor::VOLKNEE1]) {
1853 } else if (volIdx < streamDesc.mVolIndex[StreamDescriptor::VOLKNEE2]) {
1855 } else if (volIdx <= streamDesc.mVolIndex[StreamDescriptor::VOLMAX]) {
1857 } else { // out of bounds
1861 // linear interpolation in the attenuation table in dB
1862 float decibels = streamDesc.mVolDbAtt[segment] +
1863 ((float)(volIdx - streamDesc.mVolIndex[segment])) *
1864 ( (streamDesc.mVolDbAtt[segment+1] - streamDesc.mVolDbAtt[segment]) /
1865 ((float)(streamDesc.mVolIndex[segment+1] - streamDesc.mVolIndex[segment])) );
1867 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 )
1869 LOGV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f",
1870 streamDesc.mVolIndex[segment], volIdx, streamDesc.mVolIndex[segment+1],
1871 streamDesc.mVolDbAtt[segment], decibels, streamDesc.mVolDbAtt[segment+1],
1874 return amplification;
1877 void AudioPolicyManagerBase::initializeVolumeCurves() {
1878 // initialize the volume curves to a (-49.5 - 0 dB) attenuation in 0.5dB steps
1879 for (int i=0 ; i< AudioSystem::NUM_STREAM_TYPES ; i++) {
1880 mStreams[i].mVolIndex[StreamDescriptor::VOLMIN] = 1;
1881 mStreams[i].mVolDbAtt[StreamDescriptor::VOLMIN] = -49.5f;
1882 mStreams[i].mVolIndex[StreamDescriptor::VOLKNEE1] = 33;
1883 mStreams[i].mVolDbAtt[StreamDescriptor::VOLKNEE1] = -33.5f;
1884 mStreams[i].mVolIndex[StreamDescriptor::VOLKNEE2] = 66;
1885 mStreams[i].mVolDbAtt[StreamDescriptor::VOLKNEE2] = -17.0f;
1886 // here we use 100 steps to avoid rounding errors
1887 // when computing the volume in volIndexToAmpl()
1888 mStreams[i].mVolIndex[StreamDescriptor::VOLMAX] = 100;
1889 mStreams[i].mVolDbAtt[StreamDescriptor::VOLMAX] = 0.0f;
1892 // Modification for music: more attenuation for lower volumes, finer steps at high volumes
1893 mStreams[AudioSystem::MUSIC].mVolIndex[StreamDescriptor::VOLMIN] = 1;
1894 mStreams[AudioSystem::MUSIC].mVolDbAtt[StreamDescriptor::VOLMIN] = -58.0f;
1895 mStreams[AudioSystem::MUSIC].mVolIndex[StreamDescriptor::VOLKNEE1] = 20;
1896 mStreams[AudioSystem::MUSIC].mVolDbAtt[StreamDescriptor::VOLKNEE1] = -40.0f;
1897 mStreams[AudioSystem::MUSIC].mVolIndex[StreamDescriptor::VOLKNEE2] = 60;
1898 mStreams[AudioSystem::MUSIC].mVolDbAtt[StreamDescriptor::VOLKNEE2] = -17.0f;
1899 mStreams[AudioSystem::MUSIC].mVolIndex[StreamDescriptor::VOLMAX] = 100;
1900 mStreams[AudioSystem::MUSIC].mVolDbAtt[StreamDescriptor::VOLMAX] = 0.0f;
1903 float AudioPolicyManagerBase::computeVolume(int stream, int index, audio_io_handle_t output, uint32_t device)
1906 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1907 StreamDescriptor &streamDesc = mStreams[stream];
1910 device = outputDesc->device();
1913 // if volume is not 0 (not muted), force media volume to max on digital output
1914 if (stream == AudioSystem::MUSIC &&
1915 index != mStreams[stream].mIndexMin &&
1916 device == AudioSystem::DEVICE_OUT_AUX_DIGITAL) {
1920 volume = volIndexToAmpl(device, streamDesc, index);
1922 // if a headset is connected, apply the following rules to ring tones and notifications
1923 // to avoid sound level bursts in user's ears:
1924 // - always attenuate ring tones and notifications volume by 6dB
1925 // - if music is playing, always limit the volume to current music volume,
1926 // with a minimum threshold at -36dB so that notification is always perceived.
1928 (AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP |
1929 AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
1930 AudioSystem::DEVICE_OUT_WIRED_HEADSET |
1931 AudioSystem::DEVICE_OUT_WIRED_HEADPHONE)) &&
1932 ((getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) ||
1933 (stream == AudioSystem::SYSTEM)) &&
1934 streamDesc.mCanBeMuted) {
1935 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR;
1936 // when the phone is ringing we must consider that music could have been paused just before
1937 // by the music application and behave as if music was active if the last music track was
1939 if (outputDesc->mRefCount[AudioSystem::MUSIC] || mLimitRingtoneVolume) {
1940 float musicVol = computeVolume(AudioSystem::MUSIC, mStreams[AudioSystem::MUSIC].mIndexCur, output, device);
1941 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? musicVol : SONIFICATION_HEADSET_VOLUME_MIN;
1942 if (volume > minVol) {
1944 LOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol);
1952 status_t AudioPolicyManagerBase::checkAndSetVolume(int stream, int index, audio_io_handle_t output, uint32_t device, int delayMs, bool force)
1955 // do not change actual stream volume if the stream is muted
1956 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) {
1957 LOGV("checkAndSetVolume() stream %d muted count %d", stream, mOutputs.valueFor(output)->mMuteCount[stream]);
1961 // do not change in call volume if bluetooth is connected and vice versa
1962 if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
1963 (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) {
1964 LOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm",
1965 stream, mForceUse[AudioSystem::FOR_COMMUNICATION]);
1966 return INVALID_OPERATION;
1969 float volume = computeVolume(stream, index, output, device);
1970 // We actually change the volume if:
1971 // - the float value returned by computeVolume() changed
1972 // - the force flag is set
1973 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] ||
1975 mOutputs.valueFor(output)->mCurVolume[stream] = volume;
1976 LOGV("setStreamVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs);
1977 if (stream == AudioSystem::VOICE_CALL ||
1978 stream == AudioSystem::DTMF ||
1979 stream == AudioSystem::BLUETOOTH_SCO) {
1980 // offset value to reflect actual hardware volume that never reaches 0
1981 // 1% corresponds roughly to first step in VOICE_CALL stream volume setting (see AudioService.java)
1982 volume = 0.01 + 0.99 * volume;
1983 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is
1985 if (stream == AudioSystem::BLUETOOTH_SCO) {
1986 mpClientInterface->setStreamVolume(AudioSystem::VOICE_CALL, volume, output, delayMs);
1990 mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output, delayMs);
1993 if (stream == AudioSystem::VOICE_CALL ||
1994 stream == AudioSystem::BLUETOOTH_SCO) {
1996 // Force voice volume to max for bluetooth SCO as volume is managed by the headset
1997 if (stream == AudioSystem::VOICE_CALL) {
1998 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax;
2003 if (voiceVolume != mLastVoiceVolume && output == mHardwareOutput) {
2004 mpClientInterface->setVoiceVolume(voiceVolume, delayMs);
2005 mLastVoiceVolume = voiceVolume;
2012 void AudioPolicyManagerBase::applyStreamVolumes(audio_io_handle_t output, uint32_t device, int delayMs, bool force)
2014 LOGV("applyStreamVolumes() for output %d and device %x", output, device);
2016 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2017 checkAndSetVolume(stream, mStreams[stream].mIndexCur, output, device, delayMs, force);
2021 void AudioPolicyManagerBase::setStrategyMute(routing_strategy strategy, bool on, audio_io_handle_t output, int delayMs)
2023 LOGV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output);
2024 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2025 if (getStrategy((AudioSystem::stream_type)stream) == strategy) {
2026 setStreamMute(stream, on, output, delayMs);
2031 void AudioPolicyManagerBase::setStreamMute(int stream, bool on, audio_io_handle_t output, int delayMs)
2033 StreamDescriptor &streamDesc = mStreams[stream];
2034 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2036 LOGV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d", stream, on, output, outputDesc->mMuteCount[stream]);
2039 if (outputDesc->mMuteCount[stream] == 0) {
2040 if (streamDesc.mCanBeMuted) {
2041 checkAndSetVolume(stream, 0, output, outputDesc->device(), delayMs);
2044 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored
2045 outputDesc->mMuteCount[stream]++;
2047 if (outputDesc->mMuteCount[stream] == 0) {
2048 LOGW("setStreamMute() unmuting non muted stream!");
2051 if (--outputDesc->mMuteCount[stream] == 0) {
2052 checkAndSetVolume(stream, streamDesc.mIndexCur, output, outputDesc->device(), delayMs);
2057 void AudioPolicyManagerBase::handleIncallSonification(int stream, bool starting, bool stateChange)
2059 // if the stream pertains to sonification strategy and we are in call we must
2060 // mute the stream if it is low visibility. If it is high visibility, we must play a tone
2061 // in the device used for phone strategy and play the tone if the selected device does not
2062 // interfere with the device used for phone strategy
2063 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as
2064 // many times as there are active tracks on the output
2066 if (getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) {
2067 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mHardwareOutput);
2068 LOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d",
2069 stream, starting, outputDesc->mDevice, stateChange);
2070 if (outputDesc->mRefCount[stream]) {
2073 muteCount = outputDesc->mRefCount[stream];
2075 if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) {
2076 LOGV("handleIncallSonification() low visibility, muteCount %d", muteCount);
2077 for (int i = 0; i < muteCount; i++) {
2078 setStreamMute(stream, starting, mHardwareOutput);
2081 LOGV("handleIncallSonification() high visibility");
2082 if (outputDesc->device() & getDeviceForStrategy(STRATEGY_PHONE)) {
2083 LOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount);
2084 for (int i = 0; i < muteCount; i++) {
2085 setStreamMute(stream, starting, mHardwareOutput);
2089 mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL);
2091 mpClientInterface->stopTone();
2098 bool AudioPolicyManagerBase::isInCall()
2100 return isStateInCall(mPhoneState);
2103 bool AudioPolicyManagerBase::isStateInCall(int state) {
2104 return ((state == AudioSystem::MODE_IN_CALL) ||
2105 (state == AudioSystem::MODE_IN_COMMUNICATION));
2108 bool AudioPolicyManagerBase::needsDirectOuput(AudioSystem::stream_type stream,
2109 uint32_t samplingRate,
2112 AudioSystem::output_flags flags,
2115 return ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) ||
2116 (format !=0 && !AudioSystem::isLinearPCM(format)));
2119 uint32_t AudioPolicyManagerBase::getMaxEffectsCpuLoad()
2121 return MAX_EFFECTS_CPU_LOAD;
2124 uint32_t AudioPolicyManagerBase::getMaxEffectsMemory()
2126 return MAX_EFFECTS_MEMORY;
2129 // --- AudioOutputDescriptor class implementation
2131 AudioPolicyManagerBase::AudioOutputDescriptor::AudioOutputDescriptor()
2132 : mId(0), mSamplingRate(0), mFormat(0), mChannels(0), mLatency(0),
2133 mFlags((AudioSystem::output_flags)0), mDevice(0), mOutput1(0), mOutput2(0)
2135 // clear usage count for all stream types
2136 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
2138 mCurVolume[i] = -1.0;
2144 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::device()
2146 uint32_t device = 0;
2147 if (isDuplicated()) {
2148 device = mOutput1->mDevice | mOutput2->mDevice;
2155 void AudioPolicyManagerBase::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta)
2157 // forward usage count change to attached outputs
2158 if (isDuplicated()) {
2159 mOutput1->changeRefCount(stream, delta);
2160 mOutput2->changeRefCount(stream, delta);
2162 if ((delta + (int)mRefCount[stream]) < 0) {
2163 LOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]);
2164 mRefCount[stream] = 0;
2167 mRefCount[stream] += delta;
2168 LOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]);
2171 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::refCount()
2173 uint32_t refcount = 0;
2174 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
2175 refcount += mRefCount[i];
2180 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::strategyRefCount(routing_strategy strategy)
2182 uint32_t refCount = 0;
2183 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
2184 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
2185 refCount += mRefCount[i];
2191 status_t AudioPolicyManagerBase::AudioOutputDescriptor::dump(int fd)
2193 const size_t SIZE = 256;
2197 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
2198 result.append(buffer);
2199 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
2200 result.append(buffer);
2201 snprintf(buffer, SIZE, " Channels: %08x\n", mChannels);
2202 result.append(buffer);
2203 snprintf(buffer, SIZE, " Latency: %d\n", mLatency);
2204 result.append(buffer);
2205 snprintf(buffer, SIZE, " Flags %08x\n", mFlags);
2206 result.append(buffer);
2207 snprintf(buffer, SIZE, " Devices %08x\n", device());
2208 result.append(buffer);
2209 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n");
2210 result.append(buffer);
2211 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
2212 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", i, mCurVolume[i], mRefCount[i], mMuteCount[i]);
2213 result.append(buffer);
2215 write(fd, result.string(), result.size());
2220 // --- AudioInputDescriptor class implementation
2222 AudioPolicyManagerBase::AudioInputDescriptor::AudioInputDescriptor()
2223 : mSamplingRate(0), mFormat(0), mChannels(0),
2224 mAcoustics((AudioSystem::audio_in_acoustics)0), mDevice(0), mRefCount(0)
2228 status_t AudioPolicyManagerBase::AudioInputDescriptor::dump(int fd)
2230 const size_t SIZE = 256;
2234 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
2235 result.append(buffer);
2236 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
2237 result.append(buffer);
2238 snprintf(buffer, SIZE, " Channels: %08x\n", mChannels);
2239 result.append(buffer);
2240 snprintf(buffer, SIZE, " Acoustics %08x\n", mAcoustics);
2241 result.append(buffer);
2242 snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
2243 result.append(buffer);
2244 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
2245 result.append(buffer);
2246 write(fd, result.string(), result.size());
2251 // --- StreamDescriptor class implementation
2253 void AudioPolicyManagerBase::StreamDescriptor::dump(char* buffer, size_t size)
2255 snprintf(buffer, size, " %02d %02d %02d %d\n",
2262 // --- EffectDescriptor class implementation
2264 status_t AudioPolicyManagerBase::EffectDescriptor::dump(int fd)
2266 const size_t SIZE = 256;
2270 snprintf(buffer, SIZE, " Output: %d\n", mOutput);
2271 result.append(buffer);
2272 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy);
2273 result.append(buffer);
2274 snprintf(buffer, SIZE, " Session: %d\n", mSession);
2275 result.append(buffer);
2276 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name);
2277 result.append(buffer);
2278 write(fd, result.string(), result.size());
2285 }; // namespace android