blob: 19fff5756794134a18cec637845b6b6ac55eea91 [file] [log] [blame]
/*
* 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 "AudioPolicyManagerBase"
//#define LOG_NDEBUG 0
//#define VERY_VERBOSE_LOGGING
#ifdef VERY_VERBOSE_LOGGING
#define ALOGVV ALOGV
#else
#define ALOGVV(a...) do { } while(0)
#endif
// A device mask for all audio input devices that are considered "virtual" when evaluating
// active inputs in getActiveInput()
#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX
#include <utils/Log.h>
#include <hardware_legacy/AudioPolicyManagerBase.h>
#include <hardware/audio_effect.h>
#include <hardware/audio.h>
#include <math.h>
#include <hardware_legacy/audio_policy_conf.h>
namespace android_audio_legacy {
// ----------------------------------------------------------------------------
// AudioPolicyInterface implementation
// ----------------------------------------------------------------------------
status_t AudioPolicyManagerBase::setDeviceConnectionState(audio_devices_t device,
AudioSystem::device_connection_state state,
const char *device_address)
{
SortedVector <audio_io_handle_t> outputs;
ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address);
// connect/disconnect only 1 device at a time
if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE;
if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) {
ALOGE("setDeviceConnectionState() invalid address: %s", device_address);
return BAD_VALUE;
}
// handle output devices
if (audio_is_output_device(device)) {
if (!mHasA2dp && audio_is_a2dp_device(device)) {
ALOGE("setDeviceConnectionState() invalid A2DP device: %x", device);
return BAD_VALUE;
}
if (!mHasUsb && audio_is_usb_device(device)) {
ALOGE("setDeviceConnectionState() invalid USB audio device: %x", device);
return BAD_VALUE;
}
if (!mHasRemoteSubmix && audio_is_remote_submix_device((audio_devices_t)device)) {
ALOGE("setDeviceConnectionState() invalid remote submix audio device: %x", device);
return BAD_VALUE;
}
// save a copy of the opened output descriptors before any output is opened or closed
// by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies()
mPreviousOutputs = mOutputs;
switch (state)
{
// handle output device connection
case AudioSystem::DEVICE_STATE_AVAILABLE:
if (mAvailableOutputDevices & device) {
ALOGW("setDeviceConnectionState() device already connected: %x", device);
return INVALID_OPERATION;
}
ALOGV("setDeviceConnectionState() connecting device %x", device);
if (checkOutputsForDevice(device, state, outputs) != NO_ERROR) {
return INVALID_OPERATION;
}
ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %d outputs",
outputs.size());
// register new device as available
mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices | device);
if (!outputs.isEmpty()) {
String8 paramStr;
if (mHasA2dp && audio_is_a2dp_device(device)) {
// handle A2DP device connection
AudioParameter param;
param.add(String8(AUDIO_PARAMETER_A2DP_SINK_ADDRESS), String8(device_address));
paramStr = param.toString();
mA2dpDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
mA2dpSuspended = false;
} else if (audio_is_bluetooth_sco_device(device)) {
// handle SCO device connection
mScoDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
} else if (mHasUsb && audio_is_usb_device(device)) {
// handle USB device connection
mUsbCardAndDevice = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
paramStr = mUsbCardAndDevice;
}
// not currently handling multiple simultaneous submixes: ignoring remote submix
// case and address
if (!paramStr.isEmpty()) {
for (size_t i = 0; i < outputs.size(); i++) {
mpClientInterface->setParameters(outputs[i], paramStr);
}
}
}
break;
// handle output device disconnection
case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
if (!(mAvailableOutputDevices & device)) {
ALOGW("setDeviceConnectionState() device not connected: %x", device);
return INVALID_OPERATION;
}
ALOGV("setDeviceConnectionState() disconnecting device %x", device);
// remove device from available output devices
mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices & ~device);
checkOutputsForDevice(device, state, outputs);
if (mHasA2dp && audio_is_a2dp_device(device)) {
// handle A2DP device disconnection
mA2dpDeviceAddress = "";
mA2dpSuspended = false;
} else if (audio_is_bluetooth_sco_device(device)) {
// handle SCO device disconnection
mScoDeviceAddress = "";
} else if (mHasUsb && audio_is_usb_device(device)) {
// handle USB device disconnection
mUsbCardAndDevice = "";
}
// not currently handling multiple simultaneous submixes: ignoring remote submix
// case and address
} break;
default:
ALOGE("setDeviceConnectionState() invalid state: %x", state);
return BAD_VALUE;
}
checkA2dpSuspend();
checkOutputForAllStrategies();
// outputs must be closed after checkOutputForAllStrategies() is executed
if (!outputs.isEmpty()) {
for (size_t i = 0; i < outputs.size(); i++) {
// close unused outputs after device disconnection or direct outputs that have been
// opened by checkOutputsForDevice() to query dynamic parameters
if ((state == AudioSystem::DEVICE_STATE_UNAVAILABLE) ||
(mOutputs.valueFor(outputs[i])->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
closeOutput(outputs[i]);
}
}
}
updateDevicesAndOutputs();
for (size_t i = 0; i < mOutputs.size(); i++) {
// do not force device change on duplicated output because if device is 0, it will
// also force a device 0 for the two outputs it is duplicated to which may override
// a valid device selection on those outputs.
setOutputDevice(mOutputs.keyAt(i),
getNewDevice(mOutputs.keyAt(i), true /*fromCache*/),
!mOutputs.valueAt(i)->isDuplicated(),
0);
}
if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) {
device = AUDIO_DEVICE_IN_WIRED_HEADSET;
} else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO ||
device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET ||
device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) {
device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
} else {
return NO_ERROR;
}
}
// handle input devices
if (audio_is_input_device(device)) {
switch (state)
{
// handle input device connection
case AudioSystem::DEVICE_STATE_AVAILABLE: {
if (mAvailableInputDevices & device) {
ALOGW("setDeviceConnectionState() device already connected: %d", device);
return INVALID_OPERATION;
}
mAvailableInputDevices = mAvailableInputDevices | (device & ~AUDIO_DEVICE_BIT_IN);
}
break;
// handle input device disconnection
case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
if (!(mAvailableInputDevices & device)) {
ALOGW("setDeviceConnectionState() device not connected: %d", device);
return INVALID_OPERATION;
}
mAvailableInputDevices = (audio_devices_t) (mAvailableInputDevices & ~device);
} break;
default:
ALOGE("setDeviceConnectionState() invalid state: %x", state);
return BAD_VALUE;
}
audio_io_handle_t activeInput = getActiveInput();
if (activeInput != 0) {
AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
ALOGV("setDeviceConnectionState() changing device from %x to %x for input %d",
inputDesc->mDevice, newDevice, activeInput);
inputDesc->mDevice = newDevice;
AudioParameter param = AudioParameter();
param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
mpClientInterface->setParameters(activeInput, param.toString());
}
}
return NO_ERROR;
}
ALOGW("setDeviceConnectionState() invalid device: %x", device);
return BAD_VALUE;
}
AudioSystem::device_connection_state AudioPolicyManagerBase::getDeviceConnectionState(audio_devices_t device,
const char *device_address)
{
AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE;
String8 address = String8(device_address);
if (audio_is_output_device(device)) {
if (device & mAvailableOutputDevices) {
if (audio_is_a2dp_device(device) &&
(!mHasA2dp || (address != "" && mA2dpDeviceAddress != address))) {
return state;
}
if (audio_is_bluetooth_sco_device(device) &&
address != "" && mScoDeviceAddress != address) {
return state;
}
if (audio_is_usb_device(device) &&
(!mHasUsb || (address != "" && mUsbCardAndDevice != address))) {
ALOGE("getDeviceConnectionState() invalid device: %x", device);
return state;
}
if (audio_is_remote_submix_device((audio_devices_t)device) && !mHasRemoteSubmix) {
return state;
}
state = AudioSystem::DEVICE_STATE_AVAILABLE;
}
} else if (audio_is_input_device(device)) {
if (device & mAvailableInputDevices) {
state = AudioSystem::DEVICE_STATE_AVAILABLE;
}
}
return state;
}
void AudioPolicyManagerBase::setPhoneState(int state)
{
ALOGV("setPhoneState() state %d", state);
audio_devices_t newDevice = AUDIO_DEVICE_NONE;
if (state < 0 || state >= AudioSystem::NUM_MODES) {
ALOGW("setPhoneState() invalid state %d", state);
return;
}
if (state == mPhoneState ) {
ALOGW("setPhoneState() setting same state %d", state);
return;
}
// if leaving call state, handle special case of active streams
// pertaining to sonification strategy see handleIncallSonification()
if (isInCall()) {
ALOGV("setPhoneState() in call state management: new state is %d", state);
for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
handleIncallSonification(stream, false, true);
}
}
// store previous phone state for management of sonification strategy below
int oldState = mPhoneState;
mPhoneState = state;
bool force = false;
// are we entering or starting a call
if (!isStateInCall(oldState) && isStateInCall(state)) {
ALOGV(" Entering call in setPhoneState()");
// force routing command to audio hardware when starting a call
// even if no device change is needed
force = true;
} else if (isStateInCall(oldState) && !isStateInCall(state)) {
ALOGV(" Exiting call in setPhoneState()");
// force routing command to audio hardware when exiting a call
// even if no device change is needed
force = true;
} else if (isStateInCall(state) && (state != oldState)) {
ALOGV(" Switching between telephony and VoIP in setPhoneState()");
// force routing command to audio hardware when switching between telephony and VoIP
// even if no device change is needed
force = true;
}
// check for device and output changes triggered by new phone state
newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/);
checkA2dpSuspend();
checkOutputForAllStrategies();
updateDevicesAndOutputs();
AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput);
// force routing command to audio hardware when ending call
// even if no device change is needed
if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) {
newDevice = hwOutputDesc->device();
}
// when changing from ring tone to in call mode, mute the ringing tone
// immediately and delay the route change to avoid sending the ring tone
// tail into the earpiece or headset.
int delayMs = 0;
if (isStateInCall(state) && oldState == AudioSystem::MODE_RINGTONE) {
// delay the device change command by twice the output latency to have some margin
// and be sure that audio buffers not yet affected by the mute are out when
// we actually apply the route change
delayMs = hwOutputDesc->mLatency*2;
setStreamMute(AudioSystem::RING, true, mPrimaryOutput);
}
if (isStateInCall(state)) {
for (size_t i = 0; i < mOutputs.size(); i++) {
AudioOutputDescriptor *desc = mOutputs.valueAt(i);
//take the biggest latency for all outputs
if (delayMs < desc->mLatency*2) {
delayMs = desc->mLatency*2;
}
//mute STRATEGY_MEDIA on all outputs
if (desc->strategyRefCount(STRATEGY_MEDIA) != 0) {
setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i));
setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS,
getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/));
}
}
}
// change routing is necessary
setOutputDevice(mPrimaryOutput, newDevice, force, delayMs);
// if entering in call state, handle special case of active streams
// pertaining to sonification strategy see handleIncallSonification()
if (isStateInCall(state)) {
ALOGV("setPhoneState() in call state management: new state is %d", state);
// unmute the ringing tone after a sufficient delay if it was muted before
// setting output device above
if (oldState == AudioSystem::MODE_RINGTONE) {
setStreamMute(AudioSystem::RING, false, mPrimaryOutput, MUTE_TIME_MS);
}
for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
handleIncallSonification(stream, true, true);
}
}
// Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE
if (state == AudioSystem::MODE_RINGTONE &&
isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) {
mLimitRingtoneVolume = true;
} else {
mLimitRingtoneVolume = false;
}
}
void AudioPolicyManagerBase::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config)
{
ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState);
bool forceVolumeReeval = false;
switch(usage) {
case AudioSystem::FOR_COMMUNICATION:
if (config != AudioSystem::FORCE_SPEAKER && config != AudioSystem::FORCE_BT_SCO &&
config != AudioSystem::FORCE_NONE) {
ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config);
return;
}
forceVolumeReeval = true;
mForceUse[usage] = config;
break;
case AudioSystem::FOR_MEDIA:
if (config != AudioSystem::FORCE_HEADPHONES && config != AudioSystem::FORCE_BT_A2DP &&
config != AudioSystem::FORCE_WIRED_ACCESSORY &&
config != AudioSystem::FORCE_ANALOG_DOCK &&
config != AudioSystem::FORCE_DIGITAL_DOCK && config != AudioSystem::FORCE_NONE &&
config != AudioSystem::FORCE_NO_BT_A2DP) {
ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config);
return;
}
mForceUse[usage] = config;
break;
case AudioSystem::FOR_RECORD:
if (config != AudioSystem::FORCE_BT_SCO && config != AudioSystem::FORCE_WIRED_ACCESSORY &&
config != AudioSystem::FORCE_NONE) {
ALOGW("setForceUse() invalid config %d for FOR_RECORD", config);
return;
}
mForceUse[usage] = config;
break;
case AudioSystem::FOR_DOCK:
if (config != AudioSystem::FORCE_NONE && config != AudioSystem::FORCE_BT_CAR_DOCK &&
config != AudioSystem::FORCE_BT_DESK_DOCK &&
config != AudioSystem::FORCE_WIRED_ACCESSORY &&
config != AudioSystem::FORCE_ANALOG_DOCK &&
config != AudioSystem::FORCE_DIGITAL_DOCK) {
ALOGW("setForceUse() invalid config %d for FOR_DOCK", config);
}
forceVolumeReeval = true;
mForceUse[usage] = config;
break;
case AudioSystem::FOR_SYSTEM:
if (config != AudioSystem::FORCE_NONE &&
config != AudioSystem::FORCE_SYSTEM_ENFORCED) {
ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config);
}
forceVolumeReeval = true;
mForceUse[usage] = config;
break;
default:
ALOGW("setForceUse() invalid usage %d", usage);
break;
}
// check for device and output changes triggered by new force usage
checkA2dpSuspend();
checkOutputForAllStrategies();
updateDevicesAndOutputs();
for (size_t i = 0; i < mOutputs.size(); i++) {
audio_io_handle_t output = mOutputs.keyAt(i);
audio_devices_t newDevice = getNewDevice(output, true /*fromCache*/);
setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE));
if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) {
applyStreamVolumes(output, newDevice, 0, true);
}
}
audio_io_handle_t activeInput = getActiveInput();
if (activeInput != 0) {
AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
ALOGV("setForceUse() changing device from %x to %x for input %d",
inputDesc->mDevice, newDevice, activeInput);
inputDesc->mDevice = newDevice;
AudioParameter param = AudioParameter();
param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
mpClientInterface->setParameters(activeInput, param.toString());
}
}
}
AudioSystem::forced_config AudioPolicyManagerBase::getForceUse(AudioSystem::force_use usage)
{
return mForceUse[usage];
}
void AudioPolicyManagerBase::setSystemProperty(const char* property, const char* value)
{
ALOGV("setSystemProperty() property %s, value %s", property, value);
}
AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getProfileForDirectOutput(
audio_devices_t device,
uint32_t samplingRate,
uint32_t format,
uint32_t channelMask,
audio_output_flags_t flags)
{
for (size_t i = 0; i < mHwModules.size(); i++) {
if (mHwModules[i]->mHandle == 0) {
continue;
}
for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) {
IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
if (profile->isCompatibleProfile(device, samplingRate, format,
channelMask,
AUDIO_OUTPUT_FLAG_DIRECT)) {
if (mAvailableOutputDevices & profile->mSupportedDevices) {
return mHwModules[i]->mOutputProfiles[j];
}
}
}
}
return 0;
}
audio_io_handle_t AudioPolicyManagerBase::getOutput(AudioSystem::stream_type stream,
uint32_t samplingRate,
uint32_t format,
uint32_t channelMask,
AudioSystem::output_flags flags)
{
audio_io_handle_t output = 0;
uint32_t latency = 0;
routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream);
audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
ALOGV("getOutput() stream %d, samplingRate %d, format %d, channelMask %x, flags %x",
stream, samplingRate, format, channelMask, flags);
#ifdef AUDIO_POLICY_TEST
if (mCurOutput != 0) {
ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d",
mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput);
if (mTestOutputs[mCurOutput] == 0) {
ALOGV("getOutput() opening test output");
AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
outputDesc->mDevice = mTestDevice;
outputDesc->mSamplingRate = mTestSamplingRate;
outputDesc->mFormat = mTestFormat;
outputDesc->mChannelMask = mTestChannels;
outputDesc->mLatency = mTestLatencyMs;
outputDesc->mFlags = (audio_output_flags_t)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0);
outputDesc->mRefCount[stream] = 0;
mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice,
&outputDesc->mSamplingRate,
&outputDesc->mFormat,
&outputDesc->mChannelMask,
&outputDesc->mLatency,
outputDesc->mFlags);
if (mTestOutputs[mCurOutput]) {
AudioParameter outputCmd = AudioParameter();
outputCmd.addInt(String8("set_id"),mCurOutput);
mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString());
addOutput(mTestOutputs[mCurOutput], outputDesc);
}
}
return mTestOutputs[mCurOutput];
}
#endif //AUDIO_POLICY_TEST
// open a direct output if required by specified parameters
IOProfile *profile = getProfileForDirectOutput(device,
samplingRate,
format,
channelMask,
(audio_output_flags_t)flags);
if (profile != NULL) {
ALOGV("getOutput() opening direct output device %x", device);
AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(profile);
outputDesc->mDevice = device;
outputDesc->mSamplingRate = samplingRate;
outputDesc->mFormat = (audio_format_t)format;
outputDesc->mChannelMask = (audio_channel_mask_t)channelMask;
outputDesc->mLatency = 0;
outputDesc->mFlags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);;
outputDesc->mRefCount[stream] = 0;
outputDesc->mStopTime[stream] = 0;
output = mpClientInterface->openOutput(profile->mModule->mHandle,
&outputDesc->mDevice,
&outputDesc->mSamplingRate,
&outputDesc->mFormat,
&outputDesc->mChannelMask,
&outputDesc->mLatency,
outputDesc->mFlags);
// only accept an output with the requested parameters
if (output == 0 ||
(samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) ||
(format != 0 && format != outputDesc->mFormat) ||
(channelMask != 0 && channelMask != outputDesc->mChannelMask)) {
ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d,"
"format %d %d, channelMask %04x %04x", output, samplingRate,
outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask,
outputDesc->mChannelMask);
if (output != 0) {
mpClientInterface->closeOutput(output);
}
delete outputDesc;
return 0;
}
addOutput(output, outputDesc);
ALOGV("getOutput() returns direct output %d", output);
return output;
}
// ignoring channel mask due to downmix capability in mixer
// open a non direct output
// get which output is suitable for the specified stream. The actual routing change will happen
// when startOutput() will be called
SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs);
output = selectOutput(outputs, flags);
ALOGW_IF((output ==0), "getOutput() could not find output for stream %d, samplingRate %d,"
"format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags);
ALOGV("getOutput() returns output %d", output);
return output;
}
audio_io_handle_t AudioPolicyManagerBase::selectOutput(const SortedVector<audio_io_handle_t>& outputs,
AudioSystem::output_flags flags)
{
// select one output among several that provide a path to a particular device or set of
// devices (the list was previously build by getOutputsForDevice()).
// The priority is as follows:
// 1: the output with the highest number of requested policy flags
// 2: the primary output
// 3: the first output in the list
if (outputs.size() == 0) {
return 0;
}
if (outputs.size() == 1) {
return outputs[0];
}
int maxCommonFlags = 0;
audio_io_handle_t outputFlags = 0;
audio_io_handle_t outputPrimary = 0;
for (size_t i = 0; i < outputs.size(); i++) {
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]);
if (!outputDesc->isDuplicated()) {
int commonFlags = (int)AudioSystem::popCount(outputDesc->mProfile->mFlags & flags);
if (commonFlags > maxCommonFlags) {
outputFlags = outputs[i];
maxCommonFlags = commonFlags;
ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags);
}
if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
outputPrimary = outputs[i];
}
}
}
if (outputFlags != 0) {
return outputFlags;
}
if (outputPrimary != 0) {
return outputPrimary;
}
return outputs[0];
}
status_t AudioPolicyManagerBase::startOutput(audio_io_handle_t output,
AudioSystem::stream_type stream,
int session)
{
ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session);
ssize_t index = mOutputs.indexOfKey(output);
if (index < 0) {
ALOGW("startOutput() unknow output %d", output);
return BAD_VALUE;
}
AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
// increment usage count for this stream on the requested output:
// NOTE that the usage count is the same for duplicated output and hardware output which is
// necessary for a correct control of hardware output routing by startOutput() and stopOutput()
outputDesc->changeRefCount(stream, 1);
if (outputDesc->mRefCount[stream] == 1) {
audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
routing_strategy strategy = getStrategy(stream);
bool shouldWait = (strategy == STRATEGY_SONIFICATION) ||
(strategy == STRATEGY_SONIFICATION_RESPECTFUL);
uint32_t waitMs = 0;
bool force = false;
for (size_t i = 0; i < mOutputs.size(); i++) {
AudioOutputDescriptor *desc = mOutputs.valueAt(i);
if (desc != outputDesc) {
// force a device change if any other output is managed by the same hw
// module and has a current device selection that differs from selected device.
// In this case, the audio HAL must receive the new device selection so that it can
// change the device currently selected by the other active output.
if (outputDesc->sharesHwModuleWith(desc) &&
desc->device() != newDevice) {
force = true;
}
// wait for audio on other active outputs to be presented when starting
// a notification so that audio focus effect can propagate.
if (shouldWait && (desc->refCount() != 0) && (waitMs < desc->latency())) {
waitMs = desc->latency();
}
}
}
uint32_t muteWaitMs = setOutputDevice(output, newDevice, force);
// handle special case for sonification while in call
if (isInCall()) {
handleIncallSonification(stream, true, false);
}
// apply volume rules for current stream and device if necessary
checkAndSetVolume(stream,
mStreams[stream].getVolumeIndex(newDevice),
output,
newDevice);
// update the outputs if starting an output with a stream that can affect notification
// routing
handleNotificationRoutingForStream(stream);
if (waitMs > muteWaitMs) {
usleep((waitMs - muteWaitMs) * 2 * 1000);
}
}
return NO_ERROR;
}
status_t AudioPolicyManagerBase::stopOutput(audio_io_handle_t output,
AudioSystem::stream_type stream,
int session)
{
ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session);
ssize_t index = mOutputs.indexOfKey(output);
if (index < 0) {
ALOGW("stopOutput() unknow output %d", output);
return BAD_VALUE;
}
AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
// handle special case for sonification while in call
if (isInCall()) {
handleIncallSonification(stream, false, false);
}
if (outputDesc->mRefCount[stream] > 0) {
// decrement usage count of this stream on the output
outputDesc->changeRefCount(stream, -1);
// store time at which the stream was stopped - see isStreamActive()
if (outputDesc->mRefCount[stream] == 0) {
outputDesc->mStopTime[stream] = systemTime();
audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
// delay the device switch by twice the latency because stopOutput() is executed when
// the track stop() command is received and at that time the audio track buffer can
// still contain data that needs to be drained. The latency only covers the audio HAL
// and kernel buffers. Also the latency does not always include additional delay in the
// audio path (audio DSP, CODEC ...)
setOutputDevice(output, newDevice, false, outputDesc->mLatency*2);
// force restoring the device selection on other active outputs if it differs from the
// one being selected for this output
for (size_t i = 0; i < mOutputs.size(); i++) {
audio_io_handle_t curOutput = mOutputs.keyAt(i);
AudioOutputDescriptor *desc = mOutputs.valueAt(i);
if (curOutput != output &&
desc->refCount() != 0 &&
outputDesc->sharesHwModuleWith(desc) &&
newDevice != desc->device()) {
setOutputDevice(curOutput,
getNewDevice(curOutput, false /*fromCache*/),
true,
outputDesc->mLatency*2);
}
}
// update the outputs if stopping one with a stream that can affect notification routing
handleNotificationRoutingForStream(stream);
}
return NO_ERROR;
} else {
ALOGW("stopOutput() refcount is already 0 for output %d", output);
return INVALID_OPERATION;
}
}
void AudioPolicyManagerBase::releaseOutput(audio_io_handle_t output)
{
ALOGV("releaseOutput() %d", output);
ssize_t index = mOutputs.indexOfKey(output);
if (index < 0) {
ALOGW("releaseOutput() releasing unknown output %d", 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;
}
return;
}
#endif //AUDIO_POLICY_TEST
if (mOutputs.valueAt(index)->mFlags & AudioSystem::OUTPUT_FLAG_DIRECT) {
mpClientInterface->closeOutput(output);
delete mOutputs.valueAt(index);
mOutputs.removeItem(output);
mPreviousOutputs = mOutputs;
}
}
audio_io_handle_t AudioPolicyManagerBase::getInput(int inputSource,
uint32_t samplingRate,
uint32_t format,
uint32_t channelMask,
AudioSystem::audio_in_acoustics acoustics)
{
audio_io_handle_t input = 0;
audio_devices_t device = getDeviceForInputSource(inputSource);
ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x",
inputSource, samplingRate, format, channelMask, acoustics);
if (device == AUDIO_DEVICE_NONE) {
ALOGW("getInput() could not find device for inputSource %d", inputSource);
return 0;
}
// adapt channel selection to input source
switch(inputSource) {
case AUDIO_SOURCE_VOICE_UPLINK:
channelMask = AudioSystem::CHANNEL_IN_VOICE_UPLINK;
break;
case AUDIO_SOURCE_VOICE_DOWNLINK:
channelMask = AudioSystem::CHANNEL_IN_VOICE_DNLINK;
break;
case AUDIO_SOURCE_VOICE_CALL:
channelMask = (AudioSystem::CHANNEL_IN_VOICE_UPLINK | AudioSystem::CHANNEL_IN_VOICE_DNLINK);
break;
default:
break;
}
IOProfile *profile = getInputProfile(device,
samplingRate,
format,
channelMask);
if (profile == NULL) {
ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d,"
"channelMask %04x",
device, samplingRate, format, channelMask);
return 0;
}
if (profile->mModule->mHandle == 0) {
ALOGE("getInput(): HW module %s not opened", profile->mModule->mName);
return 0;
}
AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile);
inputDesc->mInputSource = inputSource;
inputDesc->mDevice = device;
inputDesc->mSamplingRate = samplingRate;
inputDesc->mFormat = (audio_format_t)format;
inputDesc->mChannelMask = (audio_channel_mask_t)channelMask;
inputDesc->mRefCount = 0;
input = mpClientInterface->openInput(profile->mModule->mHandle,
&inputDesc->mDevice,
&inputDesc->mSamplingRate,
&inputDesc->mFormat,
&inputDesc->mChannelMask);
// only accept input with the exact requested set of parameters
if (input == 0 ||
(samplingRate != inputDesc->mSamplingRate) ||
(format != inputDesc->mFormat) ||
(channelMask != inputDesc->mChannelMask)) {
ALOGV("getInput() failed opening input: samplingRate %d, format %d, channelMask %d",
samplingRate, format, channelMask);
if (input != 0) {
mpClientInterface->closeInput(input);
}
delete inputDesc;
return 0;
}
mInputs.add(input, inputDesc);
return input;
}
status_t AudioPolicyManagerBase::startInput(audio_io_handle_t input)
{
ALOGV("startInput() input %d", input);
ssize_t index = mInputs.indexOfKey(input);
if (index < 0) {
ALOGW("startInput() unknow input %d", 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
if (getActiveInput() != 0) {
ALOGW("startInput() input %d failed: other input already started", input);
return INVALID_OPERATION;
}
}
AudioParameter param = AudioParameter();
param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice);
param.addInt(String8(AudioParameter::keyInputSource), (int)inputDesc->mInputSource);
ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource);
mpClientInterface->setParameters(input, param.toString());
inputDesc->mRefCount = 1;
return NO_ERROR;
}
status_t AudioPolicyManagerBase::stopInput(audio_io_handle_t input)
{
ALOGV("stopInput() input %d", input);
ssize_t index = mInputs.indexOfKey(input);
if (index < 0) {
ALOGW("stopInput() unknow input %d", input);
return BAD_VALUE;
}
AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
if (inputDesc->mRefCount == 0) {
ALOGW("stopInput() input %d already stopped", input);
return INVALID_OPERATION;
} else {
AudioParameter param = AudioParameter();
param.addInt(String8(AudioParameter::keyRouting), 0);
mpClientInterface->setParameters(input, param.toString());
inputDesc->mRefCount = 0;
return NO_ERROR;
}
}
void AudioPolicyManagerBase::releaseInput(audio_io_handle_t input)
{
ALOGV("releaseInput() %d", input);
ssize_t index = mInputs.indexOfKey(input);
if (index < 0) {
ALOGW("releaseInput() releasing unknown input %d", input);
return;
}
mpClientInterface->closeInput(input);
delete mInputs.valueAt(index);
mInputs.removeItem(input);
ALOGV("releaseInput() exit");
}
void AudioPolicyManagerBase::initStreamVolume(AudioSystem::stream_type stream,
int indexMin,
int indexMax)
{
ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax);
if (indexMin < 0 || indexMin >= indexMax) {
ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax);
return;
}
mStreams[stream].mIndexMin = indexMin;
mStreams[stream].mIndexMax = indexMax;
}
status_t AudioPolicyManagerBase::setStreamVolumeIndex(AudioSystem::stream_type stream,
int index,
audio_devices_t device)
{
if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) {
return BAD_VALUE;
}
if (!audio_is_output_device(device)) {
return BAD_VALUE;
}
// Force max volume if stream cannot be muted
if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax;
ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d",
stream, device, index);
// if device is AUDIO_DEVICE_OUT_DEFAULT set default value and
// clear all device specific values
if (device == AUDIO_DEVICE_OUT_DEFAULT) {
mStreams[stream].mIndexCur.clear();
}
mStreams[stream].mIndexCur.add(device, index);
// compute and apply stream volume on all outputs according to connected device
status_t status = NO_ERROR;
for (size_t i = 0; i < mOutputs.size(); i++) {
audio_devices_t curDevice =
getDeviceForVolume(mOutputs.valueAt(i)->device());
if (device == curDevice) {
status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice);
if (volStatus != NO_ERROR) {
status = volStatus;
}
}
}
return status;
}
status_t AudioPolicyManagerBase::getStreamVolumeIndex(AudioSystem::stream_type stream,
int *index,
audio_devices_t device)
{
if (index == NULL) {
return BAD_VALUE;
}
if (!audio_is_output_device(device)) {
return BAD_VALUE;
}
// if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to
// the strategy the stream belongs to.
if (device == AUDIO_DEVICE_OUT_DEFAULT) {
device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/);
}
device = getDeviceForVolume(device);
*index = mStreams[stream].getVolumeIndex(device);
ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index);
return NO_ERROR;
}
audio_io_handle_t AudioPolicyManagerBase::getOutputForEffect(const effect_descriptor_t *desc)
{
ALOGV("getOutputForEffect()");
// apply simple rule where global effects are attached to the same output as MUSIC streams
routing_strategy strategy = getStrategy(AudioSystem::MUSIC);
audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs);
int outIdx = 0;
for (size_t i = 0; i < dstOutputs.size(); i++) {
AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]);
if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
outIdx = i;
}
}
return dstOutputs[outIdx];
}
status_t AudioPolicyManagerBase::registerEffect(const effect_descriptor_t *desc,
audio_io_handle_t io,
uint32_t strategy,
int session,
int id)
{
ssize_t index = mOutputs.indexOfKey(io);
if (index < 0) {
index = mInputs.indexOfKey(io);
if (index < 0) {
ALOGW("registerEffect() unknown io %d", io);
return INVALID_OPERATION;
}
}
if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) {
ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB",
desc->name, desc->memoryUsage);
return INVALID_OPERATION;
}
mTotalEffectsMemory += desc->memoryUsage;
ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d",
desc->name, io, strategy, session, id);
ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory);
EffectDescriptor *pDesc = new EffectDescriptor();
memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t));
pDesc->mIo = io;
pDesc->mStrategy = (routing_strategy)strategy;
pDesc->mSession = session;
pDesc->mEnabled = false;
mEffects.add(id, pDesc);
return NO_ERROR;
}
status_t AudioPolicyManagerBase::unregisterEffect(int id)
{
ssize_t index = mEffects.indexOfKey(id);
if (index < 0) {
ALOGW("unregisterEffect() unknown effect ID %d", id);
return INVALID_OPERATION;
}
EffectDescriptor *pDesc = mEffects.valueAt(index);
setEffectEnabled(pDesc, false);
if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) {
ALOGW("unregisterEffect() memory %d too big for total %d",
pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
pDesc->mDesc.memoryUsage = mTotalEffectsMemory;
}
mTotalEffectsMemory -= pDesc->mDesc.memoryUsage;
ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d",
pDesc->mDesc.name, id, pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
mEffects.removeItem(id);
delete pDesc;
return NO_ERROR;
}
status_t AudioPolicyManagerBase::setEffectEnabled(int id, bool enabled)
{
ssize_t index = mEffects.indexOfKey(id);
if (index < 0) {
ALOGW("unregisterEffect() unknown effect ID %d", id);
return INVALID_OPERATION;
}
return setEffectEnabled(mEffects.valueAt(index), enabled);
}
status_t AudioPolicyManagerBase::setEffectEnabled(EffectDescriptor *pDesc, bool enabled)
{
if (enabled == pDesc->mEnabled) {
ALOGV("setEffectEnabled(%s) effect already %s",
enabled?"true":"false", enabled?"enabled":"disabled");
return INVALID_OPERATION;
}
if (enabled) {
if (mTotalEffectsCpuLoad + pDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) {
ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS",
pDesc->mDesc.name, (float)pDesc->mDesc.cpuLoad/10);
return INVALID_OPERATION;
}
mTotalEffectsCpuLoad += pDesc->mDesc.cpuLoad;
ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad);
} else {
if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) {
ALOGW("setEffectEnabled(false) CPU load %d too high for total %d",
pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad);
pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad;
}
mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad;
ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad);
}
pDesc->mEnabled = enabled;
return NO_ERROR;
}
bool AudioPolicyManagerBase::isStreamActive(int stream, uint32_t inPastMs) const
{
nsecs_t sysTime = systemTime();
for (size_t i = 0; i < mOutputs.size(); i++) {
if (mOutputs.valueAt(i)->mRefCount[stream] != 0 ||
ns2ms(sysTime - mOutputs.valueAt(i)->mStopTime[stream]) < inPastMs) {
return true;
}
}
return false;
}
bool AudioPolicyManagerBase::isSourceActive(audio_source_t source) const
{
for (size_t i = 0; i < mInputs.size(); i++) {
const AudioInputDescriptor * inputDescriptor = mInputs.valueAt(i);
if ((inputDescriptor->mInputSource == (int) source)
&& (inputDescriptor->mRefCount > 0)) {
return true;
}
}
return false;
}
status_t AudioPolicyManagerBase::dump(int fd)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this);
result.append(buffer);
snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput);
result.append(buffer);
snprintf(buffer, SIZE, " A2DP device address: %s\n", mA2dpDeviceAddress.string());
result.append(buffer);
snprintf(buffer, SIZE, " SCO device address: %s\n", mScoDeviceAddress.string());
result.append(buffer);
snprintf(buffer, SIZE, " USB audio ALSA %s\n", mUsbCardAndDevice.string());
result.append(buffer);
snprintf(buffer, SIZE, " Output devices: %08x\n", mAvailableOutputDevices);
result.append(buffer);
snprintf(buffer, SIZE, " Input devices: %08x\n", mAvailableInputDevices);
result.append(buffer);
snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState);
result.append(buffer);
snprintf(buffer, SIZE, " Force use for communications %d\n", mForceUse[AudioSystem::FOR_COMMUNICATION]);
result.append(buffer);
snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AudioSystem::FOR_MEDIA]);
result.append(buffer);
snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AudioSystem::FOR_RECORD]);
result.append(buffer);
snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AudioSystem::FOR_DOCK]);
result.append(buffer);
snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AudioSystem::FOR_SYSTEM]);
result.append(buffer);
write(fd, result.string(), result.size());
snprintf(buffer, SIZE, "\nHW Modules dump:\n");
write(fd, buffer, strlen(buffer));
for (size_t i = 0; i < mHwModules.size(); i++) {
snprintf(buffer, SIZE, "- HW Module %d:\n", i + 1);
write(fd, buffer, strlen(buffer));
mHwModules[i]->dump(fd);
}
snprintf(buffer, SIZE, "\nOutputs dump:\n");
write(fd, buffer, strlen(buffer));
for (size_t i = 0; i < mOutputs.size(); i++) {
snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i));
write(fd, buffer, strlen(buffer));
mOutputs.valueAt(i)->dump(fd);
}
snprintf(buffer, SIZE, "\nInputs dump:\n");
write(fd, buffer, strlen(buffer));
for (size_t i = 0; i < mInputs.size(); i++) {
snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i));
write(fd, buffer, strlen(buffer));
mInputs.valueAt(i)->dump(fd);
}
snprintf(buffer, SIZE, "\nStreams dump:\n");
write(fd, buffer, strlen(buffer));
snprintf(buffer, SIZE,
" Stream Can be muted Index Min Index Max Index Cur [device : index]...\n");
write(fd, buffer, strlen(buffer));
for (size_t i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
snprintf(buffer, SIZE, " %02d ", i);
write(fd, buffer, strlen(buffer));
mStreams[i].dump(fd);
}
snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n",
(float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory);
write(fd, buffer, strlen(buffer));
snprintf(buffer, SIZE, "Registered effects:\n");
write(fd, buffer, strlen(buffer));
for (size_t i = 0; i < mEffects.size(); i++) {
snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i));
write(fd, buffer, strlen(buffer));
mEffects.valueAt(i)->dump(fd);
}
return NO_ERROR;
}
// ----------------------------------------------------------------------------
// AudioPolicyManagerBase
// ----------------------------------------------------------------------------
AudioPolicyManagerBase::AudioPolicyManagerBase(AudioPolicyClientInterface *clientInterface)
:
#ifdef AUDIO_POLICY_TEST
Thread(false),
#endif //AUDIO_POLICY_TEST
mPrimaryOutput((audio_io_handle_t)0),
mAvailableOutputDevices(AUDIO_DEVICE_NONE),
mPhoneState(AudioSystem::MODE_NORMAL),
mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f),
mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0),
mA2dpSuspended(false), mHasA2dp(false), mHasUsb(false), mHasRemoteSubmix(false)
{
mpClientInterface = clientInterface;
for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) {
mForceUse[i] = AudioSystem::FORCE_NONE;
}
initializeVolumeCurves();
mA2dpDeviceAddress = String8("");
mScoDeviceAddress = String8("");
mUsbCardAndDevice = String8("");
if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) {
if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) {
ALOGE("could not load audio policy configuration file, setting defaults");
defaultAudioPolicyConfig();
}
}
// open all output streams needed to access attached devices
for (size_t i = 0; i < mHwModules.size(); i++) {
mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName);
if (mHwModules[i]->mHandle == 0) {
ALOGW("could not open HW module %s", mHwModules[i]->mName);
continue;
}
// open all output streams needed to access attached devices
for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
{
const IOProfile *outProfile = mHwModules[i]->mOutputProfiles[j];
if (outProfile->mSupportedDevices & mAttachedOutputDevices) {
AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(outProfile);
outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice &
outProfile->mSupportedDevices);
audio_io_handle_t output = mpClientInterface->openOutput(
outProfile->mModule->mHandle,
&outputDesc->mDevice,
&outputDesc->mSamplingRate,
&outputDesc->mFormat,
&outputDesc->mChannelMask,
&outputDesc->mLatency,
outputDesc->mFlags);
if (output == 0) {
delete outputDesc;
} else {
mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices |
(outProfile->mSupportedDevices & mAttachedOutputDevices));
if (mPrimaryOutput == 0 &&
outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
mPrimaryOutput = output;
}
addOutput(output, outputDesc);
setOutputDevice(output,
(audio_devices_t)(mDefaultOutputDevice &
outProfile->mSupportedDevices),
true);
}
}
}
}
ALOGE_IF((mAttachedOutputDevices & ~mAvailableOutputDevices),
"Not output found for attached devices %08x",
(mAttachedOutputDevices & ~mAvailableOutputDevices));
ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output");
updateDevicesAndOutputs();
#ifdef AUDIO_POLICY_TEST
if (mPrimaryOutput != 0) {
AudioParameter outputCmd = AudioParameter();
outputCmd.addInt(String8("set_id"), 0);
mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
mTestDevice = AUDIO_DEVICE_OUT_SPEAKER;
mTestSamplingRate = 44100;
mTestFormat = AudioSystem::PCM_16_BIT;
mTestChannels = AudioSystem::CHANNEL_OUT_STEREO;
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
}
AudioPolicyManagerBase::~AudioPolicyManagerBase()
{
#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);
}
for (size_t i = 0; i < mInputs.size(); i++) {
mpClientInterface->closeInput(mInputs.keyAt(i));
delete mInputs.valueAt(i);
}
for (size_t i = 0; i < mHwModules.size(); i++) {
delete mHwModules[i];
}
}
status_t AudioPolicyManagerBase::initCheck()
{
return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR;
}
#ifdef AUDIO_POLICY_TEST
bool AudioPolicyManagerBase::threadLoop()
{
ALOGV("entering threadLoop()");
while (!exitPending())
{
String8 command;
int valueInt;
String8 value;
Mutex::Autolock _l(mLock);
mWaitWorkCV.waitRelative(mLock, milliseconds(50));
command = mpClientInterface->getParameters(0, String8("test_cmd_policy"));
AudioParameter param = AudioParameter(command);
if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR &&
valueInt != 0) {
ALOGV("Test command %s received", command.string());
String8 target;
if (param.get(String8("target"), target) != NO_ERROR) {
target = "Manager";
}
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"));
int format = AudioSystem::INVALID_FORMAT;
if (value == "PCM 16 bits") {
format = AudioSystem::PCM_16_BIT;
} else if (value == "PCM 8 bits") {
format = AudioSystem::PCM_8_BIT;
} else if (value == "Compressed MP3") {
format = AudioSystem::MP3;
}
if (format != AudioSystem::INVALID_FORMAT) {
if (target == "Manager") {
mTestFormat = format;
} else if (mTestOutputs[mCurOutput] != 0) {
AudioParameter outputParam = AudioParameter();
outputParam.addInt(String8("format"), format);
mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
}
}
}
if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) {
param.remove(String8("test_cmd_policy_channels"));
int channels = 0;
if (value == "Channels Stereo") {
channels = AudioSystem::CHANNEL_OUT_STEREO;
} else if (value == "Channels Mono") {
channels = AudioSystem::CHANNEL_OUT_MONO;
}
if (channels != 0) {
if (target == "Manager") {
mTestChannels = channels;
} else if (mTestOutputs[mCurOutput] != 0) {
AudioParameter outputParam = AudioParameter();
outputParam.addInt(String8("channels"), channels);
mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
}
}
}
if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) {
param.remove(String8("test_cmd_policy_sampleRate"));
if (valueInt >= 0 && valueInt <= 96000) {
int samplingRate = valueInt;
if (target == "Manager") {
mTestSamplingRate = samplingRate;
} else if (mTestOutputs[mCurOutput] != 0) {
AudioParameter outputParam = AudioParameter();
outputParam.addInt(String8("sampling_rate"), samplingRate);
mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
}
}
}
if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) {
param.remove(String8("test_cmd_policy_reopen"));
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
mpClientInterface->closeOutput(mPrimaryOutput);
audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle;
delete mOutputs.valueFor(mPrimaryOutput);
mOutputs.removeItem(mPrimaryOutput);
AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER;
mPrimaryOutput = mpClientInterface->openOutput(moduleHandle,
&outputDesc->mDevice,
&outputDesc->mSamplingRate,
&outputDesc->mFormat,
&outputDesc->mChannelMask,
&outputDesc->mLatency,
outputDesc->mFlags);
if (mPrimaryOutput == 0) {
ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d",
outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask);
} else {
AudioParameter outputCmd = AudioParameter();
outputCmd.addInt(String8("set_id"), 0);
mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
addOutput(mPrimaryOutput, outputDesc);
}
}
mpClientInterface->setParameters(0, String8("test_cmd_policy="));
}
}
return false;
}
void AudioPolicyManagerBase::exit()
{
{
AutoMutex _l(mLock);
requestExit();
mWaitWorkCV.signal();
}
requestExitAndWait();
}
int AudioPolicyManagerBase::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
// ---
void AudioPolicyManagerBase::addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc)
{
outputDesc->mId = id;
mOutputs.add(id, outputDesc);
}
status_t AudioPolicyManagerBase::checkOutputsForDevice(audio_devices_t device,
AudioSystem::device_connection_state state,
SortedVector<audio_io_handle_t>& outputs)
{
AudioOutputDescriptor *desc;
if (state == AudioSystem::DEVICE_STATE_AVAILABLE) {
// first list already open outputs that can be routed to this device
for (size_t i = 0; i < mOutputs.size(); i++) {
desc = mOutputs.valueAt(i);
if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices & device)) {
ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i));
outputs.add(mOutputs.keyAt(i));
}
}
// then look for output profiles that can be routed to this device
SortedVector<IOProfile *> profiles;
for (size_t i = 0; i < mHwModules.size(); i++)
{
if (mHwModules[i]->mHandle == 0) {
continue;
}
for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
{
if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices & device) {
ALOGV("checkOutputsForDevice(): adding profile %d from module %d", j, i);
profiles.add(mHwModules[i]->mOutputProfiles[j]);
}
}
}
if (profiles.isEmpty() && outputs.isEmpty()) {
ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
return BAD_VALUE;
}
// open outputs for matching profiles if needed. Direct outputs are also opened to
// query for dynamic parameters and will be closed later by setDeviceConnectionState()
for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) {
IOProfile *profile = profiles[profile_index];
// nothing to do if one output is already opened for this profile
size_t j;
for (j = 0; j < mOutputs.size(); j++) {
desc = mOutputs.valueAt(j);
if (!desc->isDuplicated() && desc->mProfile == profile) {
break;
}
}
if (j != mOutputs.size()) {
continue;
}
ALOGV("opening output for device %08x", device);
desc = new AudioOutputDescriptor(profile);
desc->mDevice = device;
audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle,
&desc->mDevice,
&desc->mSamplingRate,
&desc->mFormat,
&desc->mChannelMask,
&desc->mLatency,
desc->mFlags);
if (output != 0) {
if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) {
String8 reply;
char *value;
if (profile->mSamplingRates[0] == 0) {
reply = mpClientInterface->getParameters(output,
String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES));
ALOGV("checkOutputsForDevice() direct output sup sampling rates %s",
reply.string());
value = strpbrk((char *)reply.string(), "=");
if (value != NULL) {
loadSamplingRates(value + 1, profile);
}
}
if (profile->mFormats[0] == 0) {
reply = mpClientInterface->getParameters(output,
String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
ALOGV("checkOutputsForDevice() direct output sup formats %s",
reply.string());
value = strpbrk((char *)reply.string(), "=");
if (value != NULL) {
loadFormats(value + 1, profile);
}
}
if (profile->mChannelMasks[0] == 0) {
reply = mpClientInterface->getParameters(output,
String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS));
ALOGV("checkOutputsForDevice() direct output sup channel masks %s",
reply.string());
value = strpbrk((char *)reply.string(), "=");
if (value != NULL) {
loadOutChannels(value + 1, profile);
}
}
if (((profile->mSamplingRates[0] == 0) &&
(profile->mSamplingRates.size() < 2)) ||
((profile->mFormats[0] == 0) &&
(profile->mFormats.size() < 2)) ||
((profile->mFormats[0] == 0) &&
(profile->mChannelMasks.size() < 2))) {
ALOGW("checkOutputsForDevice() direct output missing param");
mpClientInterface->closeOutput(output);
output = 0;
} else {
addOutput(output, desc);
}
} else {
audio_io_handle_t duplicatedOutput = 0;
// add output descriptor
addOutput(output, desc);
// set initial stream volume for device
applyStreamVolumes(output, device, 0, true);
//TODO: configure audio effect output stage here
// open a duplicating output thread for the new output and the primary output
duplicatedOutput = mpClientInterface->openDuplicateOutput(output,
mPrimaryOutput);
if (duplicatedOutput != 0) {
// add duplicated output descriptor
AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL);
dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput);
dupOutputDesc->mOutput2 = mOutputs.valueFor(output);
dupOutputDesc->mSamplingRate = desc->mSamplingRate;
dupOutputDesc->mFormat = desc->mFormat;
dupOutputDesc->mChannelMask = desc->mChannelMask;
dupOutputDesc->mLatency = desc->mLatency;
addOutput(duplicatedOutput, dupOutputDesc);
applyStreamVolumes(duplicatedOutput, device, 0, true);
} else {
ALOGW("checkOutputsForDevice() could not open dup output for %d and %d",
mPrimaryOutput, output);
mpClientInterface->closeOutput(output);
mOutputs.removeItem(output);
output = 0;
}
}
}
if (output == 0) {
ALOGW("checkOutputsForDevice() could not open output for device %x", device);
delete desc;
profiles.removeAt(profile_index);
profile_index--;
} else {
outputs.add(output);
ALOGV("checkOutputsForDevice(): adding output %d", output);
}
}
if (profiles.isEmpty()) {
ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
return BAD_VALUE;
}
} else {
// check if one opened output is not needed any more after disconnecting one device
for (size_t i = 0; i < mOutputs.size(); i++) {
desc = mOutputs.valueAt(i);
if (!desc->isDuplicated() &&
!(desc->mProfile->mSupportedDevices & mAvailableOutputDevices)) {
ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i));
outputs.add(mOutputs.keyAt(i));
}
}
for (size_t i = 0; i < mHwModules.size(); i++)
{
if (mHwModules[i]->mHandle == 0) {
continue;
}
for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
{
IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
if ((profile->mSupportedDevices & device) &&
(profile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
ALOGV("checkOutputsForDevice(): clearing direct output profile %d on module %d",
j, i);
if (profile->mSamplingRates[0] == 0) {
profile->mSamplingRates.clear();
profile->mSamplingRates.add(0);
}
if (profile->mFormats[0] == 0) {
profile->mFormats.clear();
profile->mFormats.add((audio_format_t)0);
}
if (profile->mChannelMasks[0] == 0) {
profile->mChannelMasks.clear();
profile->mChannelMasks.add((audio_channel_mask_t)0);
}
}
}
}
}
return NO_ERROR;
}
void AudioPolicyManagerBase::closeOutput(audio_io_handle_t output)
{
ALOGV("closeOutput(%d)", output);
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
if (outputDesc == NULL) {
ALOGW("closeOutput() unknown output %d", output);
return;
}
// look for duplicated outputs connected to the output being removed.
for (size_t i = 0; i < mOutputs.size(); i++) {
AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i);
if (dupOutputDesc->isDuplicated() &&
(dupOutputDesc->mOutput1 == outputDesc ||
dupOutputDesc->mOutput2 == outputDesc)) {
AudioOutputDescriptor *outputDesc2;
if (dupOutputDesc->mOutput1 == outputDesc) {
outputDesc2 = dupOutputDesc->mOutput2;
} else {
outputDesc2 = dupOutputDesc->mOutput1;
}
// As all active tracks on duplicated output will be deleted,
// and as they were also referenced on the other output, the reference
// count for their stream type must be adjusted accordingly on
// the other output.
for (int j = 0; j < (int)AudioSystem::NUM_STREAM_TYPES; j++) {
int refCount = dupOutputDesc->mRefCount[j];
outputDesc2->changeRefCount((AudioSystem::stream_type)j,-refCount);
}
audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i);
ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput);
mpClientInterface->closeOutput(duplicatedOutput);
delete mOutputs.valueFor(duplicatedOutput);
mOutputs.removeItem(duplicatedOutput);
}
}
AudioParameter param;
param.add(String8("closing"), String8("true"));
mpClientInterface->setParameters(output, param.toString());
mpClientInterface->closeOutput(output);
delete mOutputs.valueFor(output);
mOutputs.removeItem(output);
}
SortedVector<audio_io_handle_t> AudioPolicyManagerBase::getOutputsForDevice(audio_devices_t device,
DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs)
{
SortedVector<audio_io_handle_t> outputs;
ALOGVV("getOutputsForDevice() device %04x", device);
for (size_t i = 0; i < openOutputs.size(); i++) {
ALOGVV("output %d isDuplicated=%d device=%04x",
i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices());
if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) {
ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i));
outputs.add(openOutputs.keyAt(i));
}
}
return outputs;
}
bool AudioPolicyManagerBase::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1,
SortedVector<audio_io_handle_t>& outputs2)
{
if (outputs1.size() != outputs2.size()) {
return false;
}
for (size_t i = 0; i < outputs1.size(); i++) {
if (outputs1[i] != outputs2[i]) {
return false;
}
}
return true;
}
void AudioPolicyManagerBase::checkOutputForStrategy(routing_strategy strategy)
{
audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/);
audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/);
SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs);
SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs);
if (!vectorsEqual(srcOutputs,dstOutputs)) {
ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d",
strategy, srcOutputs[0], dstOutputs[0]);
// mute strategy while moving tracks from one output to another
for (size_t i = 0; i < srcOutputs.size(); i++) {
AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]);
if (desc->strategyRefCount(strategy) != 0) {
setStrategyMute(strategy, true, srcOutputs[i]);
setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice);
}
}
// Move effects associated to this strategy from previous output to new output
if (strategy == STRATEGY_MEDIA) {
int outIdx = 0;
for (size_t i = 0; i < dstOutputs.size(); i++) {
AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]);
if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
outIdx = i;
}
}
SortedVector<audio_io_handle_t> moved;
for (size_t i = 0; i < mEffects.size(); i++) {
EffectDescriptor *desc = mEffects.valueAt(i);
if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX &&
desc->mIo != dstOutputs[outIdx]) {
if (moved.indexOf(desc->mIo) < 0) {
ALOGV("checkOutputForStrategy() moving effect %d to output %d",
mEffects.keyAt(i), dstOutputs[outIdx]);
mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo,
dstOutputs[outIdx]);
moved.add(desc->mIo);
}
desc->mIo = dstOutputs[outIdx];
}
}
}
// Move tracks associated to this strategy from previous output to new output
for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
if (getStrategy((AudioSystem::stream_type)i) == strategy) {
//FIXME see fixme on name change
mpClientInterface->setStreamOutput((AudioSystem::stream_type)i,
dstOutputs[0] /* ignored */);
}
}
}
}
void AudioPolicyManagerBase::checkOutputForAllStrategies()
{
checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE);
checkOutputForStrategy(STRATEGY_PHONE);
checkOutputForStrategy(STRATEGY_SONIFICATION);
checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
checkOutputForStrategy(STRATEGY_MEDIA);
checkOutputForStrategy(STRATEGY_DTMF);
}
audio_io_handle_t AudioPolicyManagerBase::getA2dpOutput()
{
if (!mHasA2dp) {
return 0;
}
for (size_t i = 0; i < mOutputs.size(); i++) {
AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) {
return mOutputs.keyAt(i);
}
}
return 0;
}
void AudioPolicyManagerBase::checkA2dpSuspend()
{
if (!mHasA2dp) {
return;
}
audio_io_handle_t a2dpOutput = getA2dpOutput();
if (a2dpOutput == 0) {
return;
}
// suspend A2DP output if:
// (NOT already suspended) &&
// ((SCO device is connected &&
// (forced usage for communication || for record is SCO))) ||
// (phone state is ringing || in call)
//
// restore A2DP output if:
// (Already suspended) &&
// ((SCO device is NOT connected ||
// (forced usage NOT for communication && NOT for record is SCO))) &&
// (phone state is NOT ringing && NOT in call)
//
if (mA2dpSuspended) {
if (((mScoDeviceAddress == "") ||
((mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO) &&
(mForceUse[AudioSystem::FOR_RECORD] != AudioSystem::FORCE_BT_SCO))) &&
((mPhoneState != AudioSystem::MODE_IN_CALL) &&
(mPhoneState != AudioSystem::MODE_RINGTONE))) {
mpClientInterface->restoreOutput(a2dpOutput);
mA2dpSuspended = false;
}
} else {
if (((mScoDeviceAddress != "") &&
((mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
(mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO))) ||
((mPhoneState == AudioSystem::MODE_IN_CALL) ||
(mPhoneState == AudioSystem::MODE_RINGTONE))) {
mpClientInterface->suspendOutput(a2dpOutput);
mA2dpSuspended = true;
}
}
}
audio_devices_t AudioPolicyManagerBase::getNewDevice(audio_io_handle_t output, bool fromCache)
{
audio_devices_t device = AUDIO_DEVICE_NONE;
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
// check the following by order of priority to request a routing change if necessary:
// 1: the strategy enforced audible is active on the output:
// use device for strategy enforced audible
// 2: we are in call or the strategy phone is active on the output:
// use device for strategy phone
// 3: the strategy sonification is active on the output:
// use device for strategy sonification
// 4: the strategy "respectful" sonification is active on the output:
// use device for strategy "respectful" sonification
// 5: the strategy media is active on the output:
// use device for strategy media
// 6: the strategy DTMF is active on the output:
// use device for strategy DTMF
if (outputDesc->isUsedByStrategy(STRATEGY_ENFORCED_AUDIBLE)) {
device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
} else if (isInCall() ||
outputDesc->isUsedByStrategy(STRATEGY_PHONE)) {
device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
} else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION)) {
device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
} else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION_RESPECTFUL)) {
device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache);
} else if (outputDesc->isUsedByStrategy(STRATEGY_MEDIA)) {
device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
} else if (outputDesc->isUsedByStrategy(STRATEGY_DTMF)) {
device = getDeviceForStrategy(STRATEGY_DTMF, fromCache);
}
ALOGV("getNewDevice() selected device %x", device);
return device;
}
uint32_t AudioPolicyManagerBase::getStrategyForStream(AudioSystem::stream_type stream) {
return (uint32_t)getStrategy(stream);
}
audio_devices_t AudioPolicyManagerBase::getDevicesForStream(AudioSystem::stream_type stream) {
audio_devices_t devices;
// By checking the range of stream before calling getStrategy, we avoid
// getStrategy's behavior for invalid streams. getStrategy would do a ALOGE
// and then return STRATEGY_MEDIA, but we want to return the empty set.
if (stream < (AudioSystem::stream_type) 0 || stream >= AudioSystem::NUM_STREAM_TYPES) {
devices = AUDIO_DEVICE_NONE;
} else {
AudioPolicyManagerBase::routing_strategy strategy = getStrategy(stream);
devices = getDeviceForStrategy(strategy, true /*fromCache*/);
}
return devices;
}
AudioPolicyManagerBase::routing_strategy AudioPolicyManagerBase::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::ALARM:
return STRATEGY_SONIFICATION;
case AudioSystem::NOTIFICATION:
return STRATEGY_SONIFICATION_RESPECTFUL;
case AudioSystem::DTMF:
return STRATEGY_DTMF;
default:
ALOGE("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;
case AudioSystem::ENFORCED_AUDIBLE:
return STRATEGY_ENFORCED_AUDIBLE;
}
}
void AudioPolicyManagerBase::handleNotificationRoutingForStream(AudioSystem::stream_type stream) {
switch(stream) {
case AudioSystem::MUSIC:
checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
updateDevicesAndOutputs();
break;
default:
break;
}
}
audio_devices_t AudioPolicyManagerBase::getDeviceForStrategy(routing_strategy strategy,
bool fromCache)
{
uint32_t device = AUDIO_DEVICE_NONE;
if (fromCache) {
ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x",
strategy, mDeviceForStrategy[strategy]);
return mDeviceForStrategy[strategy];
}
switch (strategy) {
case STRATEGY_SONIFICATION_RESPECTFUL:
if (isInCall()) {
device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
} else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
// while media is playing (or has recently played), use the same device
device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
} else {
// when media is not playing anymore, fall back on the sonification behavior
device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
}
break;
case STRATEGY_DTMF:
if (!isInCall()) {
// when off call, DTMF strategy follows the same rules as MEDIA strategy
device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
break;
}
// when in call, DTMF and PHONE strategies follow the same rules
// FALL THROUGH
case STRATEGY_PHONE:
// for phone strategy, we first consider the forced use and then the available devices by order
// of priority
switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) {
case AudioSystem::FORCE_BT_SCO:
if (!isInCall() || strategy != STRATEGY_DTMF) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
if (device) break;
}
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
if (device) break;
// if SCO device is requested but no SCO device is available, fall back to default case
// FALL THROUGH
default: // FORCE_NONE
// when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
if (mHasA2dp && !isInCall() &&
(mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
(getA2dpOutput() != 0) && !mA2dpSuspended) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
if (device) break;
}
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
if (device) break;
if (mPhoneState != AudioSystem::MODE_IN_CALL) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
if (device) break;
}
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_EARPIECE;
if (device) break;
device = mDefaultOutputDevice;
if (device == AUDIO_DEVICE_NONE) {
ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE");
}
break;
case AudioSystem::FORCE_SPEAKER:
// when not in a phone call, phone strategy should route STREAM_VOICE_CALL to
// A2DP speaker when forcing to speaker output
if (mHasA2dp && !isInCall() &&
(mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
(getA2dpOutput() != 0) && !mA2dpSuspended) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
if (device) break;
}
if (mPhoneState != AudioSystem::MODE_IN_CALL) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
if (device) break;
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
if (device) break;
}
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
if (device) break;
device = mDefaultOutputDevice;
if (device == AUDIO_DEVICE_NONE) {
ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER");
}
break;
}
break;
case STRATEGY_SONIFICATION:
// If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
// handleIncallSonification().
if (isInCall()) {
device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/);
break;
}
// FALL THROUGH
case STRATEGY_ENFORCED_AUDIBLE:
// strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
// except:
// - when in call where it doesn't default to STRATEGY_PHONE behavior
// - in countries where not enforced in which case it follows STRATEGY_MEDIA
if ((strategy == STRATEGY_SONIFICATION) ||
(mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_SYSTEM_ENFORCED)) {
device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
if (device == AUDIO_DEVICE_NONE) {
ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION");
}
}
// The second device used for sonification is the same as the device used by media strategy
// FALL THROUGH
case STRATEGY_MEDIA: {
uint32_t device2 = AUDIO_DEVICE_NONE;
if (strategy != STRATEGY_SONIFICATION) {
// no sonification on remote submix (e.g. WFD)
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
}
if ((device2 == AUDIO_DEVICE_NONE) &&
mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
(getA2dpOutput() != 0) && !mA2dpSuspended) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
}
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
}
if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) {
// no sonification on aux digital (e.g. HDMI)
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
}
if ((device2 == AUDIO_DEVICE_NONE) &&
(mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_ANALOG_DOCK)) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
}
if (device2 == AUDIO_DEVICE_NONE) {
device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
}
// device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or
// STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise
device |= device2;
if (device) break;
device = mDefaultOutputDevice;
if (device == AUDIO_DEVICE_NONE) {
ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA");
}
} break;
default:
ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
break;
}
ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
return device;
}
void AudioPolicyManagerBase::updateDevicesAndOutputs()
{
for (int i = 0; i < NUM_STRATEGIES; i++) {
mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
}
mPreviousOutputs = mOutputs;
}
uint32_t AudioPolicyManagerBase::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc,
audio_devices_t prevDevice,
uint32_t delayMs)
{
// mute/unmute strategies using an incompatible device combination
// if muting, wait for the audio in pcm buffer to be drained before proceeding
// if unmuting, unmute only after the specified delay
if (outputDesc->isDuplicated()) {
return 0;
}
uint32_t muteWaitMs = 0;
audio_devices_t device = outputDesc->device();
bool shouldMute = (outputDesc->refCount() != 0) &&
(AudioSystem::popCount(device) >= 2);
// temporary mute output if device selection changes to avoid volume bursts due to
// different per device volumes
bool tempMute = (outputDesc->refCount() != 0) && (device != prevDevice);
for (size_t i = 0; i < NUM_STRATEGIES; i++) {
audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
bool mute = shouldMute && (curDevice & device) && (curDevice != device);
bool doMute = false;
if (mute && !outputDesc->mStrategyMutedByDevice[i]) {
doMute = true;
outputDesc->mStrategyMutedByDevice[i] = true;
} else if (!mute && outputDesc->mStrategyMutedByDevice[i]){
doMute = true;
outputDesc->mStrategyMutedByDevice[i] = false;
}
if (doMute || tempMute) {
for (size_t j = 0; j < mOutputs.size(); j++) {
AudioOutputDescriptor *desc = mOutputs.valueAt(j);
if ((desc->supportedDevices() & outputDesc->supportedDevices())
== AUDIO_DEVICE_NONE) {
continue;
}
audio_io_handle_t curOutput = mOutputs.keyAt(j);
ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d",
mute ? "muting" : "unmuting", i, curDevice, curOutput);
setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs);
if (desc->strategyRefCount((routing_strategy)i) != 0) {
if (tempMute) {
setStrategyMute((routing_strategy)i, true, curOutput);
setStrategyMute((routing_strategy)i, false, curOutput,
desc->latency() * 2, device);
}
if (tempMute || mute) {
if (muteWaitMs < desc->latency()) {
muteWaitMs = desc->latency();
}
}
}
}
}
}
// FIXME: should not need to double latency if volume could be applied immediately by the
// audioflinger mixer. We must account for the delay between now and the next time
// the audioflinger thread for this output will process a buffer (which corresponds to
// one buffer size, usually 1/2 or 1/4 of the latency).
muteWaitMs *= 2;
// wait for the PCM output buffers to empty before proceeding with the rest of the command
if (muteWaitMs > delayMs) {
muteWaitMs -= delayMs;
usleep(muteWaitMs * 1000);
return muteWaitMs;
}
return 0;
}
uint32_t AudioPolicyManagerBase::setOutputDevice(audio_io_handle_t output,
audio_devices_t device,
bool force,
int delayMs)
{
ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs);
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
AudioParameter param;
uint32_t muteWaitMs = 0;
if (outputDesc->isDuplicated()) {
muteWaitMs = setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs);
muteWaitMs += setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs);
return muteWaitMs;
}
// filter devices according to output selected
device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices);
audio_devices_t prevDevice = outputDesc->mDevice;
ALOGV("setOutputDevice() prevDevice %04x", prevDevice);
if (device != AUDIO_DEVICE_NONE) {
outputDesc->mDevice = device;
}
muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs);
// Do not change the routing if:
// - the requested device is AUDIO_DEVICE_NONE
// - the requested device is the same as current device and force is not specified.
// Doing this check here allows the caller to call setOutputDevice() without conditions
if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) {
ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output);
return muteWaitMs;
}
ALOGV("setOutputDevice() changing device");
// do the routing
param.addInt(String8(AudioParameter::keyRouting), (int)device);
mpClientInterface->setParameters(output, param.toString(), delayMs);
// update stream volumes according to new device
applyStreamVolumes(output, device, delayMs);
return muteWaitMs;
}
AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getInputProfile(audio_devices_t device,
uint32_t samplingRate,
uint32_t format,
uint32_t channelMask)
{
// Choose an input profile based on the requested capture parameters: select the first available
// profile supporting all requested parameters.
for (size_t i = 0; i < mHwModules.size(); i++)
{
if (mHwModules[i]->mHandle == 0) {
continue;
}
for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++)
{
IOProfile *profile = mHwModules[i]->mInputProfiles[j];
if (profile->isCompatibleProfile(device, samplingRate, format,
channelMask,(audio_output_flags_t)0)) {
return profile;
}
}
}
return NULL;
}
audio_devices_t AudioPolicyManagerBase::getDeviceForInputSource(int inputSource)
{
uint32_t device = AUDIO_DEVICE_NONE;
switch(inputSource) {
case AUDIO_SOURCE_DEFAULT:
case AUDIO_SOURCE_MIC:
case AUDIO_SOURCE_VOICE_RECOGNITION:
case AUDIO_SOURCE_VOICE_COMMUNICATION:
if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO &&
mAvailableInputDevices & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
} else if (mAvailableInputDevices & AUDIO_DEVICE_IN_WIRED_HEADSET) {
device = AUDIO_DEVICE_IN_WIRED_HEADSET;
} else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
device = AUDIO_DEVICE_IN_BUILTIN_MIC;
}
break;
case AUDIO_SOURCE_CAMCORDER:
if (mAvailableInputDevices & AUDIO_DEVICE_IN_BACK_MIC) {
device = AUDIO_DEVICE_IN_BACK_MIC;
} else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
device = AUDIO_DEVICE_IN_BUILTIN_MIC;
}
break;
case AUDIO_SOURCE_VOICE_UPLINK:
case AUDIO_SOURCE_VOICE_DOWNLINK:
case AUDIO_SOURCE_VOICE_CALL:
if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) {
device = AUDIO_DEVICE_IN_VOICE_CALL;
}
break;
case AUDIO_SOURCE_REMOTE_SUBMIX:
if (mAvailableInputDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
}
break;
default:
ALOGW("getDeviceForInputSource() invalid input source %d", inputSource);
break;
}
ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device);
return device;
}
bool AudioPolicyManagerBase::isVirtualInputDevice(audio_devices_t device)
{
if ((device & AUDIO_DEVICE_BIT_IN) != 0) {
device &= ~AUDIO_DEVICE_BIT_IN;
if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0))
return true;
}
return false;
}
audio_io_handle_t AudioPolicyManagerBase::getActiveInput(bool ignoreVirtualInputs)
{
for (size_t i = 0; i < mInputs.size(); i++) {
const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i);
if ((input_descriptor->mRefCount > 0)
&& (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) {
return mInputs.keyAt(i);