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Diffstat (limited to 'services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp')
-rw-r--r-- | services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp new file mode 100644 index 0000000..cdb5b51 --- /dev/null +++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp @@ -0,0 +1,333 @@ +/* + * 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 "AudioOutputDescriptor.h" +#include "IOProfile.h" +#include "AudioGain.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<IOProfile>& profile) + : mId(0), mIoHandle(0), mLatency(0), + mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), + mPatchHandle(0), + mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(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 (profile != NULL) { + mFlags = (audio_output_flags_t)profile->mFlags; + mSamplingRate = profile->pickSamplingRate(); + mFormat = profile->pickFormat(); + mChannelMask = profile->pickChannelMask(); + if (profile->mGains.size() > 0) { + profile->mGains[0]->getDefaultConfig(&mGain); + } + } +} + +audio_module_handle_t AudioOutputDescriptor::getModuleHandle() const +{ + return mProfile->getModuleHandle(); +} + +audio_devices_t AudioOutputDescriptor::device() const +{ + if (isDuplicated()) { + return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); + } else { + return mDevice; + } +} + +void AudioOutputDescriptor::setIoHandle(audio_io_handle_t ioHandle) +{ + mId = AudioPort::getNextUniqueId(); + mIoHandle = ioHandle; +} + +uint32_t AudioOutputDescriptor::latency() +{ + if (isDuplicated()) { + return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; + } else { + return mLatency; + } +} + +bool AudioOutputDescriptor::sharesHwModuleWith( + const sp<AudioOutputDescriptor> outputDesc) +{ + if (isDuplicated()) { + return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); + } else if (outputDesc->isDuplicated()){ + return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); + } else { + return (mProfile->mModule == outputDesc->mProfile->mModule); + } +} + +void AudioOutputDescriptor::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); + } + 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]); +} + +audio_devices_t AudioOutputDescriptor::supportedDevices() +{ + if (isDuplicated()) { + return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); + } else { + return mProfile->mSupportedDevices.types() ; + } +} + +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; +} + +void AudioOutputDescriptor::toAudioPortConfig( + struct audio_port_config *dstConfig, + const struct audio_port_config *srcConfig) const +{ + ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); + + 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 = mProfile->mModule->mHandle; + dstConfig->ext.mix.handle = mIoHandle; + dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; +} + +void AudioOutputDescriptor::toAudioPort( + struct audio_port *port) const +{ + ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); + mProfile->toAudioPort(port); + port->id = mId; + toAudioPortConfig(&port->active_config); + port->ext.mix.hw_module = mProfile->mModule->mHandle; + port->ext.mix.handle = mIoHandle; + port->ext.mix.latency_class = + mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; +} + +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, " Latency: %d\n", mLatency); + result.append(buffer); + snprintf(buffer, SIZE, " Flags %08x\n", mFlags); + 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; +} + +bool AudioOutputCollection::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<AudioOutputDescriptor> outputDesc = this->valueAt(i); + if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { + return true; + } + } + return false; +} + +bool AudioOutputCollection::isStreamActiveRemotely(audio_stream_type_t stream, + uint32_t inPastMs) const +{ + nsecs_t sysTime = systemTime(); + for (size_t i = 0; i < size(); i++) { + const sp<AudioOutputDescriptor> 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 AudioOutputCollection::getA2dpOutput() const +{ + for (size_t i = 0; i < size(); i++) { + sp<AudioOutputDescriptor> outputDesc = valueAt(i); + if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { + return this->keyAt(i); + } + } + return 0; +} + +sp<AudioOutputDescriptor> AudioOutputCollection::getPrimaryOutput() const +{ + for (size_t i = 0; i < size(); i++) { + const sp<AudioOutputDescriptor> outputDesc = valueAt(i); + if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { + return outputDesc; + } + } + return NULL; +} + +sp<AudioOutputDescriptor> AudioOutputCollection::getOutputFromId(audio_port_handle_t id) const +{ + sp<AudioOutputDescriptor> outputDesc = NULL; + for (size_t i = 0; i < size(); i++) { + outputDesc = valueAt(i); + if (outputDesc->mId == id) { + break; + } + } + return outputDesc; +} + +bool AudioOutputCollection::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<AudioOutputDescriptor> outputDesc = valueAt(i); + if (outputDesc->mRefCount[s] != 0) { + return true; + } + } + } + return false; +} + +audio_devices_t AudioOutputCollection::getSupportedDevices(audio_io_handle_t handle) const +{ + sp<AudioOutputDescriptor> outputDesc = valueFor(handle); + audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); + return devices; +} + + +status_t AudioOutputCollection::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 |