| /* |
| * Copyright (C) 2015 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 "APM::AudioOutputDescriptor" |
| //#define LOG_NDEBUG 0 |
| |
| #include <AudioPolicyInterface.h> |
| #include "AudioOutputDescriptor.h" |
| #include "IOProfile.h" |
| #include "AudioGain.h" |
| #include "Volume.h" |
| #include "HwModule.h" |
| #include <media/AudioPolicy.h> |
| |
| // A device mask for all audio output devices that are considered "remote" when evaluating |
| // active output devices in isStreamActiveRemotely() |
| #define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX |
| |
| namespace android { |
| |
| AudioOutputDescriptor::AudioOutputDescriptor(const sp<AudioPort>& port, |
| AudioPolicyClientInterface *clientInterface) |
| : mPort(port), mDevice(AUDIO_DEVICE_NONE), |
| mPatchHandle(0), mClientInterface(clientInterface), mId(0) |
| { |
| // clear usage count for all stream types |
| for (int i = 0; i < AUDIO_STREAM_CNT; i++) { |
| mRefCount[i] = 0; |
| mCurVolume[i] = -1.0; |
| mMuteCount[i] = 0; |
| mStopTime[i] = 0; |
| } |
| for (int i = 0; i < NUM_STRATEGIES; i++) { |
| mStrategyMutedByDevice[i] = false; |
| } |
| if (port != NULL) { |
| mSamplingRate = port->pickSamplingRate(); |
| mFormat = port->pickFormat(); |
| mChannelMask = port->pickChannelMask(); |
| if (port->mGains.size() > 0) { |
| port->mGains[0]->getDefaultConfig(&mGain); |
| } |
| } |
| } |
| |
| audio_module_handle_t AudioOutputDescriptor::getModuleHandle() const |
| { |
| return mPort->getModuleHandle(); |
| } |
| |
| audio_port_handle_t AudioOutputDescriptor::getId() const |
| { |
| return mId; |
| } |
| |
| audio_devices_t AudioOutputDescriptor::device() const |
| { |
| return mDevice; |
| } |
| |
| audio_devices_t AudioOutputDescriptor::supportedDevices() |
| { |
| return mDevice; |
| } |
| |
| bool AudioOutputDescriptor::sharesHwModuleWith( |
| const sp<AudioOutputDescriptor>& outputDesc) |
| { |
| if (outputDesc->isDuplicated()) { |
| return sharesHwModuleWith(outputDesc->subOutput1()) || |
| sharesHwModuleWith(outputDesc->subOutput2()); |
| } else { |
| return (getModuleHandle() == outputDesc->getModuleHandle()); |
| } |
| } |
| |
| void AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, |
| int delta) |
| { |
| if ((delta + (int)mRefCount[stream]) < 0) { |
| ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", |
| delta, stream, mRefCount[stream]); |
| mRefCount[stream] = 0; |
| return; |
| } |
| mRefCount[stream] += delta; |
| ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); |
| } |
| |
| bool AudioOutputDescriptor::isActive(uint32_t inPastMs) const |
| { |
| nsecs_t sysTime = 0; |
| if (inPastMs != 0) { |
| sysTime = systemTime(); |
| } |
| for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { |
| if (i == AUDIO_STREAM_PATCH) { |
| continue; |
| } |
| if (isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, |
| uint32_t inPastMs, |
| nsecs_t sysTime) const |
| { |
| if (mRefCount[stream] != 0) { |
| return true; |
| } |
| if (inPastMs == 0) { |
| return false; |
| } |
| if (sysTime == 0) { |
| sysTime = systemTime(); |
| } |
| if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { |
| return true; |
| } |
| return false; |
| } |
| |
| |
| bool AudioOutputDescriptor::isFixedVolume(audio_devices_t device __unused) |
| { |
| return false; |
| } |
| |
| bool AudioOutputDescriptor::setVolume(float volume, |
| audio_stream_type_t stream, |
| audio_devices_t device __unused, |
| uint32_t delayMs, |
| bool force) |
| { |
| // We actually change the volume if: |
| // - the float value returned by computeVolume() changed |
| // - the force flag is set |
| if (volume != mCurVolume[stream] || force) { |
| ALOGV("setVolume() for stream %d, volume %f, delay %d", stream, volume, delayMs); |
| mCurVolume[stream] = volume; |
| return true; |
| } |
| return false; |
| } |
| |
| void AudioOutputDescriptor::toAudioPortConfig( |
| struct audio_port_config *dstConfig, |
| const struct audio_port_config *srcConfig) const |
| { |
| dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| |
| AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; |
| if (srcConfig != NULL) { |
| dstConfig->config_mask |= srcConfig->config_mask; |
| } |
| AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); |
| |
| dstConfig->id = mId; |
| dstConfig->role = AUDIO_PORT_ROLE_SOURCE; |
| dstConfig->type = AUDIO_PORT_TYPE_MIX; |
| dstConfig->ext.mix.hw_module = getModuleHandle(); |
| dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; |
| } |
| |
| void AudioOutputDescriptor::toAudioPort( |
| struct audio_port *port) const |
| { |
| mPort->toAudioPort(port); |
| port->id = mId; |
| port->ext.mix.hw_module = getModuleHandle(); |
| } |
| |
| status_t AudioOutputDescriptor::dump(int fd) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| snprintf(buffer, SIZE, " ID: %d\n", mId); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Format: %08x\n", mFormat); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Devices %08x\n", device()); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); |
| result.append(buffer); |
| for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { |
| snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", |
| i, mCurVolume[i], mRefCount[i], mMuteCount[i]); |
| result.append(buffer); |
| } |
| write(fd, result.string(), result.size()); |
| |
| return NO_ERROR; |
| } |
| |
| void AudioOutputDescriptor::log(const char* indent) |
| { |
| ALOGI("%sID: %d,0x%X, [rt:%d fmt:0x%X ch:0x%X]", |
| indent, mId, mId, mSamplingRate, mFormat, mChannelMask); |
| } |
| |
| // SwAudioOutputDescriptor implementation |
| SwAudioOutputDescriptor::SwAudioOutputDescriptor( |
| const sp<IOProfile>& profile, AudioPolicyClientInterface *clientInterface) |
| : AudioOutputDescriptor(profile, clientInterface), |
| mProfile(profile), mIoHandle(0), mLatency(0), |
| mFlags((audio_output_flags_t)0), mPolicyMix(NULL), |
| mOutput1(0), mOutput2(0), mDirectOpenCount(0), mGlobalRefCount(0) |
| { |
| if (profile != NULL) { |
| mFlags = (audio_output_flags_t)profile->mFlags; |
| } |
| } |
| |
| void SwAudioOutputDescriptor::setIoHandle(audio_io_handle_t ioHandle) |
| { |
| mId = AudioPort::getNextUniqueId(); |
| mIoHandle = ioHandle; |
| } |
| |
| |
| status_t SwAudioOutputDescriptor::dump(int fd) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| snprintf(buffer, SIZE, " Latency: %d\n", mLatency); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " Flags %08x\n", mFlags); |
| result.append(buffer); |
| write(fd, result.string(), result.size()); |
| |
| AudioOutputDescriptor::dump(fd); |
| |
| return NO_ERROR; |
| } |
| |
| audio_devices_t SwAudioOutputDescriptor::device() const |
| { |
| if (isDuplicated()) { |
| return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); |
| } else { |
| return mDevice; |
| } |
| } |
| |
| bool SwAudioOutputDescriptor::sharesHwModuleWith( |
| const sp<AudioOutputDescriptor>& outputDesc) |
| { |
| if (isDuplicated()) { |
| return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); |
| } else if (outputDesc->isDuplicated()){ |
| return sharesHwModuleWith(outputDesc->subOutput1()) || |
| sharesHwModuleWith(outputDesc->subOutput2()); |
| } else { |
| return AudioOutputDescriptor::sharesHwModuleWith(outputDesc); |
| } |
| } |
| |
| audio_devices_t SwAudioOutputDescriptor::supportedDevices() |
| { |
| if (isDuplicated()) { |
| return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); |
| } else { |
| return mProfile->mSupportedDevices.types() ; |
| } |
| } |
| |
| uint32_t SwAudioOutputDescriptor::latency() |
| { |
| if (isDuplicated()) { |
| return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; |
| } else { |
| return mLatency; |
| } |
| } |
| |
| void SwAudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, |
| int delta) |
| { |
| // forward usage count change to attached outputs |
| if (isDuplicated()) { |
| mOutput1->changeRefCount(stream, delta); |
| mOutput2->changeRefCount(stream, delta); |
| } |
| AudioOutputDescriptor::changeRefCount(stream, delta); |
| |
| // handle stream-independent ref count |
| uint32_t oldGlobalRefCount = mGlobalRefCount; |
| if ((delta + (int)mGlobalRefCount) < 0) { |
| ALOGW("changeRefCount() invalid delta %d globalRefCount %d", delta, mGlobalRefCount); |
| mGlobalRefCount = 0; |
| } else { |
| mGlobalRefCount += delta; |
| } |
| if ((oldGlobalRefCount == 0) && (mGlobalRefCount > 0)) { |
| if ((mPolicyMix != NULL) && ((mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) |
| { |
| mClientInterface->onDynamicPolicyMixStateUpdate(mPolicyMix->mRegistrationId, |
| MIX_STATE_MIXING); |
| } |
| |
| } else if ((oldGlobalRefCount > 0) && (mGlobalRefCount == 0)) { |
| if ((mPolicyMix != NULL) && ((mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) |
| { |
| mClientInterface->onDynamicPolicyMixStateUpdate(mPolicyMix->mRegistrationId, |
| MIX_STATE_IDLE); |
| } |
| } |
| } |
| |
| |
| bool SwAudioOutputDescriptor::isFixedVolume(audio_devices_t device) |
| { |
| // unit gain if rerouting to external policy |
| if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) { |
| if (mPolicyMix != NULL) { |
| ALOGV("max gain when rerouting for output=%d", mIoHandle); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void SwAudioOutputDescriptor::toAudioPortConfig( |
| struct audio_port_config *dstConfig, |
| const struct audio_port_config *srcConfig) const |
| { |
| |
| ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); |
| AudioOutputDescriptor::toAudioPortConfig(dstConfig, srcConfig); |
| |
| dstConfig->ext.mix.handle = mIoHandle; |
| } |
| |
| void SwAudioOutputDescriptor::toAudioPort( |
| struct audio_port *port) const |
| { |
| ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); |
| |
| AudioOutputDescriptor::toAudioPort(port); |
| |
| toAudioPortConfig(&port->active_config); |
| port->ext.mix.handle = mIoHandle; |
| port->ext.mix.latency_class = |
| mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; |
| } |
| |
| bool SwAudioOutputDescriptor::setVolume(float volume, |
| audio_stream_type_t stream, |
| audio_devices_t device, |
| uint32_t delayMs, |
| bool force) |
| { |
| bool changed = AudioOutputDescriptor::setVolume(volume, stream, device, delayMs, force); |
| |
| if (changed) { |
| // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is |
| // enabled |
| float volume = Volume::DbToAmpl(mCurVolume[stream]); |
| if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { |
| mClientInterface->setStreamVolume( |
| AUDIO_STREAM_VOICE_CALL, volume, mIoHandle, delayMs); |
| } |
| mClientInterface->setStreamVolume(stream, volume, mIoHandle, delayMs); |
| } |
| return changed; |
| } |
| |
| // SwAudioOutputCollection implementation |
| |
| bool SwAudioOutputCollection::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const |
| { |
| nsecs_t sysTime = systemTime(); |
| for (size_t i = 0; i < this->size(); i++) { |
| const sp<SwAudioOutputDescriptor> outputDesc = this->valueAt(i); |
| if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool SwAudioOutputCollection::isStreamActiveRemotely(audio_stream_type_t stream, |
| uint32_t inPastMs) const |
| { |
| nsecs_t sysTime = systemTime(); |
| for (size_t i = 0; i < size(); i++) { |
| const sp<SwAudioOutputDescriptor> outputDesc = valueAt(i); |
| if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && |
| outputDesc->isStreamActive(stream, inPastMs, sysTime)) { |
| // do not consider re routing (when the output is going to a dynamic policy) |
| // as "remote playback" |
| if (outputDesc->mPolicyMix == NULL) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| audio_io_handle_t SwAudioOutputCollection::getA2dpOutput() const |
| { |
| for (size_t i = 0; i < size(); i++) { |
| sp<SwAudioOutputDescriptor> outputDesc = valueAt(i); |
| if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { |
| return this->keyAt(i); |
| } |
| } |
| return 0; |
| } |
| |
| sp<SwAudioOutputDescriptor> SwAudioOutputCollection::getPrimaryOutput() const |
| { |
| for (size_t i = 0; i < size(); i++) { |
| const sp<SwAudioOutputDescriptor> outputDesc = valueAt(i); |
| if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { |
| return outputDesc; |
| } |
| } |
| return NULL; |
| } |
| |
| sp<SwAudioOutputDescriptor> SwAudioOutputCollection::getOutputFromId(audio_port_handle_t id) const |
| { |
| sp<SwAudioOutputDescriptor> outputDesc = NULL; |
| for (size_t i = 0; i < size(); i++) { |
| outputDesc = valueAt(i); |
| if (outputDesc->getId() == id) { |
| break; |
| } |
| } |
| return outputDesc; |
| } |
| |
| bool SwAudioOutputCollection::isAnyOutputActive(audio_stream_type_t streamToIgnore) const |
| { |
| for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { |
| if (s == (size_t) streamToIgnore) { |
| continue; |
| } |
| for (size_t i = 0; i < size(); i++) { |
| const sp<SwAudioOutputDescriptor> outputDesc = valueAt(i); |
| if (outputDesc->mRefCount[s] != 0) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| audio_devices_t SwAudioOutputCollection::getSupportedDevices(audio_io_handle_t handle) const |
| { |
| sp<SwAudioOutputDescriptor> outputDesc = valueFor(handle); |
| audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); |
| return devices; |
| } |
| |
| |
| status_t SwAudioOutputCollection::dump(int fd) const |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| |
| snprintf(buffer, SIZE, "\nOutputs dump:\n"); |
| write(fd, buffer, strlen(buffer)); |
| for (size_t i = 0; i < size(); i++) { |
| snprintf(buffer, SIZE, "- Output %d dump:\n", keyAt(i)); |
| write(fd, buffer, strlen(buffer)); |
| valueAt(i)->dump(fd); |
| } |
| |
| return NO_ERROR; |
| } |
| |
| }; //namespace android |
