e0e9ecc0ce
Use integers instead of void* as input/output handles at IAudioFlinger and IAudioPolicyService interfaces. AudioFlinger maintains an always increasing count of opened inputs or outputs as unique ID.
754 lines
27 KiB
C++
754 lines
27 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "AudioPolicyManagerGeneric"
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//#define LOG_NDEBUG 0
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#include <utils/Log.h>
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#include "AudioPolicyManagerGeneric.h"
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#include <media/mediarecorder.h>
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namespace android {
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// ----------------------------------------------------------------------------
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// AudioPolicyInterface implementation
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// ----------------------------------------------------------------------------
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status_t AudioPolicyManagerGeneric::setDeviceConnectionState(AudioSystem::audio_devices device,
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AudioSystem::device_connection_state state,
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const char *device_address)
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{
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LOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address);
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// connect/disconnect only 1 device at a time
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if (AudioSystem::popCount(device) != 1) return BAD_VALUE;
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if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) {
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LOGE("setDeviceConnectionState() invalid address: %s", device_address);
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return BAD_VALUE;
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}
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// handle output devices
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if (AudioSystem::isOutputDevice(device)) {
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switch (state)
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{
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// handle output device connection
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case AudioSystem::DEVICE_STATE_AVAILABLE:
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if (mAvailableOutputDevices & device) {
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LOGW("setDeviceConnectionState() device already connected: %x", device);
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return INVALID_OPERATION;
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}
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LOGV("setDeviceConnectionState() connecting device %x", device);
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// register new device as available
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mAvailableOutputDevices |= device;
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break;
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// handle output device disconnection
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case AudioSystem::DEVICE_STATE_UNAVAILABLE:
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if (!(mAvailableOutputDevices & device)) {
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LOGW("setDeviceConnectionState() device not connected: %x", device);
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return INVALID_OPERATION;
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}
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LOGV("setDeviceConnectionState() disconnecting device %x", device);
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// remove device from available output devices
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mAvailableOutputDevices &= ~device;
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break;
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default:
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LOGE("setDeviceConnectionState() invalid state: %x", state);
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return BAD_VALUE;
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}
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return NO_ERROR;
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}
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// handle input devices
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if (AudioSystem::isInputDevice(device)) {
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switch (state)
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{
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// handle input device connection
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case AudioSystem::DEVICE_STATE_AVAILABLE:
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if (mAvailableInputDevices & device) {
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LOGW("setDeviceConnectionState() device already connected: %d", device);
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return INVALID_OPERATION;
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}
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mAvailableInputDevices |= device;
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break;
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// handle input device disconnection
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case AudioSystem::DEVICE_STATE_UNAVAILABLE:
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if (!(mAvailableInputDevices & device)) {
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LOGW("setDeviceConnectionState() device not connected: %d", device);
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return INVALID_OPERATION;
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}
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mAvailableInputDevices &= ~device;
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break;
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default:
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LOGE("setDeviceConnectionState() invalid state: %x", state);
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return BAD_VALUE;
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}
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return NO_ERROR;
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}
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LOGW("setDeviceConnectionState() invalid device: %x", device);
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return BAD_VALUE;
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}
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AudioSystem::device_connection_state AudioPolicyManagerGeneric::getDeviceConnectionState(AudioSystem::audio_devices device,
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const char *device_address)
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{
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AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE;
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String8 address = String8(device_address);
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if (AudioSystem::isOutputDevice(device)) {
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if (device & mAvailableOutputDevices) {
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state = AudioSystem::DEVICE_STATE_AVAILABLE;
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}
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} else if (AudioSystem::isInputDevice(device)) {
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if (device & mAvailableInputDevices) {
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state = AudioSystem::DEVICE_STATE_AVAILABLE;
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}
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}
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return state;
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}
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void AudioPolicyManagerGeneric::setPhoneState(int state)
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{
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LOGV("setPhoneState() state %d", state);
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uint32_t newDevice = 0;
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if (state < 0 || state >= AudioSystem::NUM_MODES) {
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LOGW("setPhoneState() invalid state %d", state);
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return;
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}
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if (state == mPhoneState ) {
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LOGW("setPhoneState() setting same state %d", state);
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return;
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}
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// store previous phone state for management of sonification strategy below
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int oldState = mPhoneState;
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mPhoneState = state;
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// if leaving or entering in call state, handle special case of active streams
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// pertaining to sonification strategy see handleIncallSonification()
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if (state == AudioSystem::MODE_IN_CALL ||
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oldState == AudioSystem::MODE_IN_CALL) {
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bool starting = (state == AudioSystem::MODE_IN_CALL) ? true : false;
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LOGV("setPhoneState() in call state management: new state is %d", state);
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for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
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handleIncallSonification(stream, starting);
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}
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}
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}
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void AudioPolicyManagerGeneric::setRingerMode(uint32_t mode, uint32_t mask)
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{
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LOGV("setRingerMode() mode %x, mask %x", mode, mask);
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mRingerMode = mode;
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}
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void AudioPolicyManagerGeneric::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config)
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{
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LOGV("setForceUse) usage %d, config %d, mPhoneState %d", usage, config, mPhoneState);
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mForceUse[usage] = config;
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}
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AudioSystem::forced_config AudioPolicyManagerGeneric::getForceUse(AudioSystem::force_use usage)
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{
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return mForceUse[usage];
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}
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void AudioPolicyManagerGeneric::setSystemProperty(const char* property, const char* value)
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{
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LOGV("setSystemProperty() property %s, value %s", property, value);
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if (strcmp(property, "ro.camera.sound.forced") == 0) {
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if (atoi(value)) {
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LOGV("ENFORCED_AUDIBLE cannot be muted");
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mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = false;
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} else {
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LOGV("ENFORCED_AUDIBLE can be muted");
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mStreams[AudioSystem::ENFORCED_AUDIBLE].mCanBeMuted = true;
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}
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}
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}
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audio_io_handle_t AudioPolicyManagerGeneric::getOutput(AudioSystem::stream_type stream,
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uint32_t samplingRate,
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uint32_t format,
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uint32_t channels,
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AudioSystem::output_flags flags)
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{
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LOGV("getOutput() stream %d, samplingRate %d, format %d, channels %x, flags %x", stream, samplingRate, format, channels, flags);
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#ifdef AUDIO_POLICY_TEST
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if (mCurOutput != 0) {
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LOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelcount %d, mDirectOutput %d",
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mCurOutput, mTestSamplingRate, mTestFormat, mTestChannelcount, mDirectOutput);
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if (mTestOutputs[mCurOutput] == 0) {
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LOGV("getOutput() opening test output");
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AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
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outputDesc->mDevice = mTestDevice;
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outputDesc->mSamplingRate = mTestSamplingRate;
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outputDesc->mFormat = mTestFormat;
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outputDesc->mChannels = (mTestChannelcount == 1) ? AudioSystem::CHANNEL_OUT_MONO : AudioSystem::CHANNEL_OUT_STEREO;
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outputDesc->mLatency = mTestLatencyMs;
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outputDesc->mFlags = (AudioSystem::output_flags)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0);
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outputDesc->mRefCount[stream] = 0;
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mTestOutputs[mCurOutput] = mpClientInterface->openOutput(&outputDesc->mDevice,
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&outputDesc->mSamplingRate,
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&outputDesc->mFormat,
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&outputDesc->mChannels,
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&outputDesc->mLatency,
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outputDesc->mFlags);
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mOutputs.add(mTestOutputs[mCurOutput], outputDesc);
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}
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return mTestOutputs[mCurOutput];
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}
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#endif //AUDIO_POLICY_TEST
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if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) ||
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(format != 0 && !AudioSystem::isLinearPCM(format)) ||
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(channels != 0 && channels != AudioSystem::CHANNEL_OUT_MONO && channels != AudioSystem::CHANNEL_OUT_STEREO)) {
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return 0;
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}
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return mHardwareOutput;
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}
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status_t AudioPolicyManagerGeneric::startOutput(audio_io_handle_t output, AudioSystem::stream_type stream)
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{
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LOGV("startOutput() output %d, stream %d", output, stream);
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ssize_t index = mOutputs.indexOfKey(output);
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if (index < 0) {
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LOGW("startOutput() unknow output %d", output);
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return BAD_VALUE;
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}
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AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
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// handle special case for sonification while in call
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if (mPhoneState == AudioSystem::MODE_IN_CALL) {
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handleIncallSonification(stream, true);
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}
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// incremenent usage count for this stream on the requested output:
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outputDesc->changeRefCount(stream, 1);
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return NO_ERROR;
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}
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status_t AudioPolicyManagerGeneric::stopOutput(audio_io_handle_t output, AudioSystem::stream_type stream)
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{
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LOGV("stopOutput() output %d, stream %d", output, stream);
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ssize_t index = mOutputs.indexOfKey(output);
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if (index < 0) {
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LOGW("stopOutput() unknow output %d", output);
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return BAD_VALUE;
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}
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AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
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// handle special case for sonification while in call
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if (mPhoneState == AudioSystem::MODE_IN_CALL) {
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handleIncallSonification(stream, false);
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}
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if (outputDesc->isUsedByStream(stream)) {
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// decrement usage count of this stream on the output
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outputDesc->changeRefCount(stream, -1);
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return NO_ERROR;
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} else {
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LOGW("stopOutput() refcount is already 0 for output %d", output);
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return INVALID_OPERATION;
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}
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}
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void AudioPolicyManagerGeneric::releaseOutput(audio_io_handle_t output)
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{
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LOGV("releaseOutput() %d", output);
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ssize_t index = mOutputs.indexOfKey(output);
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if (index < 0) {
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LOGW("releaseOutput() releasing unknown output %d", output);
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return;
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}
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#ifdef AUDIO_POLICY_TEST
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int testIndex = testOutputIndex(output);
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if (testIndex != 0) {
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AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
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if (outputDesc->refCount() == 0) {
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mpClientInterface->closeOutput(output);
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delete mOutputs.valueAt(index);
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mOutputs.removeItem(output);
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mTestOutputs[testIndex] = 0;
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}
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}
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#endif //AUDIO_POLICY_TEST
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}
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audio_io_handle_t AudioPolicyManagerGeneric::getInput(int inputSource,
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uint32_t samplingRate,
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uint32_t format,
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uint32_t channels,
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AudioSystem::audio_in_acoustics acoustics)
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{
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audio_io_handle_t input = 0;
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uint32_t device;
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LOGV("getInput() inputSource %d, samplingRate %d, format %d, channels %x, acoustics %x", inputSource, samplingRate, format, channels, acoustics);
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AudioInputDescriptor *inputDesc = new AudioInputDescriptor();
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inputDesc->mDevice = AudioSystem::DEVICE_IN_BUILTIN_MIC;
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inputDesc->mSamplingRate = samplingRate;
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inputDesc->mFormat = format;
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inputDesc->mChannels = channels;
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inputDesc->mAcoustics = acoustics;
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inputDesc->mRefCount = 0;
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input = mpClientInterface->openInput(&inputDesc->mDevice,
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&inputDesc->mSamplingRate,
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&inputDesc->mFormat,
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&inputDesc->mChannels,
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inputDesc->mAcoustics);
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// only accept input with the exact requested set of parameters
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if ((samplingRate != inputDesc->mSamplingRate) ||
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(format != inputDesc->mFormat) ||
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(channels != inputDesc->mChannels)) {
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LOGV("getOutput() failed opening input: samplingRate %d, format %d, channels %d",
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samplingRate, format, channels);
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mpClientInterface->closeInput(input);
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delete inputDesc;
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return 0;
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}
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mInputs.add(input, inputDesc);
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return input;
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}
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status_t AudioPolicyManagerGeneric::startInput(audio_io_handle_t input)
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{
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LOGV("startInput() input %d", input);
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ssize_t index = mInputs.indexOfKey(input);
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if (index < 0) {
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LOGW("startInput() unknow input %d", input);
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return BAD_VALUE;
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}
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AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
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#ifdef AUDIO_POLICY_TEST
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if (mTestInput == 0)
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#endif //AUDIO_POLICY_TEST
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{
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// refuse 2 active AudioRecord clients at the same time
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for (size_t i = 0; i < mInputs.size(); i++) {
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if (mInputs.valueAt(i)->mRefCount > 0) {
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LOGW("startInput() input %d, other input %d already started", input, mInputs.keyAt(i));
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return INVALID_OPERATION;
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}
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}
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}
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inputDesc->mRefCount = 1;
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return NO_ERROR;
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}
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status_t AudioPolicyManagerGeneric::stopInput(audio_io_handle_t input)
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{
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LOGV("stopInput() input %d", input);
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ssize_t index = mInputs.indexOfKey(input);
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if (index < 0) {
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LOGW("stopInput() unknow input %d", input);
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return BAD_VALUE;
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}
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AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
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if (inputDesc->mRefCount == 0) {
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LOGW("stopInput() input %d already stopped", input);
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return INVALID_OPERATION;
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} else {
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inputDesc->mRefCount = 0;
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return NO_ERROR;
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}
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}
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void AudioPolicyManagerGeneric::releaseInput(audio_io_handle_t input)
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{
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LOGV("releaseInput() %d", input);
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ssize_t index = mInputs.indexOfKey(input);
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if (index < 0) {
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LOGW("releaseInput() releasing unknown input %d", input);
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return;
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}
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mpClientInterface->closeInput(input);
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delete mInputs.valueAt(index);
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mInputs.removeItem(input);
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}
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void AudioPolicyManagerGeneric::initStreamVolume(AudioSystem::stream_type stream,
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int indexMin,
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int indexMax)
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{
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LOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax);
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mStreams[stream].mIndexMin = indexMin;
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mStreams[stream].mIndexMax = indexMax;
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}
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status_t AudioPolicyManagerGeneric::setStreamVolumeIndex(AudioSystem::stream_type stream, int index)
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{
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if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) {
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return BAD_VALUE;
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}
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LOGV("setStreamVolumeIndex() stream %d, index %d", stream, index);
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mStreams[stream].mIndexCur = index;
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// do not change actual stream volume if the stream is muted
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if (mStreams[stream].mMuteCount != 0) {
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return NO_ERROR;
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}
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// Do not changed in call volume if bluetooth is connected and vice versa
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if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
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(stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) {
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LOGV("setStreamVolumeIndex() cannot set stream %d volume with force use = %d for comm",
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stream, mForceUse[AudioSystem::FOR_COMMUNICATION]);
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return INVALID_OPERATION;
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}
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// compute and apply stream volume on all outputs according to connected device
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for (size_t i = 0; i < mOutputs.size(); i++) {
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AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
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uint32_t device = outputDesc->device();
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float volume = computeVolume((int)stream, index, device);
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LOGV("setStreamVolume() for output %d stream %d, volume %f", mOutputs.keyAt(i), stream, volume);
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mpClientInterface->setStreamVolume(stream, volume, mOutputs.keyAt(i));
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}
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return NO_ERROR;
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}
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status_t AudioPolicyManagerGeneric::getStreamVolumeIndex(AudioSystem::stream_type stream, int *index)
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{
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if (index == 0) {
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return BAD_VALUE;
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}
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LOGV("getStreamVolumeIndex() stream %d", stream);
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*index = mStreams[stream].mIndexCur;
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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// AudioPolicyManagerGeneric
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// ----------------------------------------------------------------------------
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// --- class factory
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AudioPolicyManagerGeneric::AudioPolicyManagerGeneric(AudioPolicyClientInterface *clientInterface)
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:
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#ifdef AUDIO_POLICY_TEST
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Thread(false),
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#endif //AUDIO_POLICY_TEST
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mPhoneState(AudioSystem::MODE_NORMAL), mRingerMode(0)
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{
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mpClientInterface = clientInterface;
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for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) {
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mForceUse[i] = AudioSystem::FORCE_NONE;
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}
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// devices available by default are speaker, ear piece and microphone
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mAvailableOutputDevices = AudioSystem::DEVICE_OUT_SPEAKER;
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mAvailableInputDevices = AudioSystem::DEVICE_IN_BUILTIN_MIC;
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// open hardware output
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AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor();
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outputDesc->mDevice = (uint32_t)AudioSystem::DEVICE_OUT_SPEAKER;
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mHardwareOutput = mpClientInterface->openOutput(&outputDesc->mDevice,
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&outputDesc->mSamplingRate,
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&outputDesc->mFormat,
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&outputDesc->mChannels,
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&outputDesc->mLatency,
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outputDesc->mFlags);
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if (mHardwareOutput == 0) {
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LOGE("Failed to initialize hardware output stream, samplingRate: %d, format %d, channels %d",
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outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannels);
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} else {
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mOutputs.add(mHardwareOutput, outputDesc);
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}
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#ifdef AUDIO_POLICY_TEST
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mTestDevice = AudioSystem::DEVICE_OUT_SPEAKER;
|
|
mTestSamplingRate = 44100;
|
|
mTestFormat = AudioSystem::PCM_16_BIT;
|
|
mTestChannelcount = 2;
|
|
mTestLatencyMs = 0;
|
|
mCurOutput = 0;
|
|
mDirectOutput = false;
|
|
for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
|
|
mTestOutputs[i] = 0;
|
|
}
|
|
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
snprintf(buffer, SIZE, "AudioPolicyManagerTest");
|
|
run(buffer, ANDROID_PRIORITY_AUDIO);
|
|
#endif //AUDIO_POLICY_TEST
|
|
}
|
|
|
|
AudioPolicyManagerGeneric::~AudioPolicyManagerGeneric()
|
|
{
|
|
#ifdef AUDIO_POLICY_TEST
|
|
exit();
|
|
#endif //AUDIO_POLICY_TEST
|
|
|
|
for (size_t i = 0; i < mOutputs.size(); i++) {
|
|
mpClientInterface->closeOutput(mOutputs.keyAt(i));
|
|
delete mOutputs.valueAt(i);
|
|
}
|
|
mOutputs.clear();
|
|
for (size_t i = 0; i < mInputs.size(); i++) {
|
|
mpClientInterface->closeInput(mInputs.keyAt(i));
|
|
delete mInputs.valueAt(i);
|
|
}
|
|
mInputs.clear();
|
|
}
|
|
|
|
#ifdef AUDIO_POLICY_TEST
|
|
bool AudioPolicyManagerGeneric::threadLoop()
|
|
{
|
|
LOGV("entering threadLoop()");
|
|
while (!exitPending())
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
mWaitWorkCV.waitRelative(mLock, milliseconds(50));
|
|
String8 command;
|
|
command = mpClientInterface->getParameters(0, String8("test_cmd_policy"));
|
|
if (command != "") {
|
|
LOGV("Test command %s received", command.string());
|
|
AudioParameter param = AudioParameter(command);
|
|
int valueInt;
|
|
String8 value;
|
|
if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_output"));
|
|
mCurOutput = valueInt;
|
|
}
|
|
if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_direct"));
|
|
if (value == "false") {
|
|
mDirectOutput = false;
|
|
} else if (value == "true") {
|
|
mDirectOutput = true;
|
|
}
|
|
}
|
|
if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_input"));
|
|
mTestInput = valueInt;
|
|
}
|
|
|
|
if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_format"));
|
|
if (value == "PCM 16 bits") {
|
|
mTestFormat = AudioSystem::PCM_16_BIT;
|
|
} else if (value == "PCM 8 bits") {
|
|
mTestFormat = AudioSystem::PCM_8_BIT;
|
|
} else if (value == "Compressed MP3") {
|
|
mTestFormat = AudioSystem::MP3;
|
|
}
|
|
}
|
|
if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_channels"));
|
|
if (value == "Channels Stereo") {
|
|
mTestChannelcount = 2;
|
|
} else if (value == "Channels Mono") {
|
|
mTestChannelcount = 1;
|
|
}
|
|
}
|
|
if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) {
|
|
param.remove(String8("test_cmd_policy_sampleRate"));
|
|
if (valueInt >= 0 && valueInt <= 96000) {
|
|
mTestSamplingRate = valueInt;
|
|
}
|
|
}
|
|
mpClientInterface->setParameters(0, String8("test_cmd_policy="));
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void AudioPolicyManagerGeneric::exit()
|
|
{
|
|
{
|
|
AutoMutex _l(mLock);
|
|
requestExit();
|
|
mWaitWorkCV.signal();
|
|
}
|
|
requestExitAndWait();
|
|
}
|
|
|
|
int AudioPolicyManagerGeneric::testOutputIndex(audio_io_handle_t output)
|
|
{
|
|
for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
|
|
if (output == mTestOutputs[i]) return i;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif //AUDIO_POLICY_TEST
|
|
|
|
// ---
|
|
|
|
AudioPolicyManagerGeneric::routing_strategy AudioPolicyManagerGeneric::getStrategy(AudioSystem::stream_type stream)
|
|
{
|
|
// stream to strategy mapping
|
|
switch (stream) {
|
|
case AudioSystem::VOICE_CALL:
|
|
case AudioSystem::BLUETOOTH_SCO:
|
|
return STRATEGY_PHONE;
|
|
case AudioSystem::RING:
|
|
case AudioSystem::NOTIFICATION:
|
|
case AudioSystem::ALARM:
|
|
case AudioSystem::ENFORCED_AUDIBLE:
|
|
return STRATEGY_SONIFICATION;
|
|
case AudioSystem::DTMF:
|
|
return STRATEGY_DTMF;
|
|
default:
|
|
LOGE("unknown stream type");
|
|
case AudioSystem::SYSTEM:
|
|
// NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs
|
|
// while key clicks are played produces a poor result
|
|
case AudioSystem::TTS:
|
|
case AudioSystem::MUSIC:
|
|
return STRATEGY_MEDIA;
|
|
}
|
|
}
|
|
|
|
|
|
float AudioPolicyManagerGeneric::computeVolume(int stream, int index, uint32_t device)
|
|
{
|
|
float volume = 1.0;
|
|
|
|
StreamDescriptor &streamDesc = mStreams[stream];
|
|
|
|
// Force max volume if stream cannot be muted
|
|
if (!streamDesc.mCanBeMuted) index = streamDesc.mIndexMax;
|
|
|
|
int volInt = (100 * (index - streamDesc.mIndexMin)) / (streamDesc.mIndexMax - streamDesc.mIndexMin);
|
|
volume = AudioSystem::linearToLog(volInt);
|
|
|
|
return volume;
|
|
}
|
|
|
|
void AudioPolicyManagerGeneric::setStreamMute(int stream, bool on, audio_io_handle_t output)
|
|
{
|
|
LOGV("setStreamMute() stream %d, mute %d, output %d", stream, on, output);
|
|
|
|
StreamDescriptor &streamDesc = mStreams[stream];
|
|
|
|
if (on) {
|
|
if (streamDesc.mMuteCount++ == 0) {
|
|
if (streamDesc.mCanBeMuted) {
|
|
mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, 0, output);
|
|
}
|
|
}
|
|
} else {
|
|
if (streamDesc.mMuteCount == 0) {
|
|
LOGW("setStreamMute() unmuting non muted stream!");
|
|
return;
|
|
}
|
|
if (--streamDesc.mMuteCount == 0) {
|
|
uint32_t device = mOutputs.valueFor(output)->mDevice;
|
|
float volume = computeVolume(stream, streamDesc.mIndexCur, device);
|
|
mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioPolicyManagerGeneric::handleIncallSonification(int stream, bool starting)
|
|
{
|
|
// if the stream pertains to sonification strategy and we are in call we must
|
|
// mute the stream if it is low visibility. If it is high visibility, we must play a tone
|
|
// in the device used for phone strategy and play the tone if the selected device does not
|
|
// interfere with the device used for phone strategy
|
|
if (getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) {
|
|
AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mHardwareOutput);
|
|
LOGV("handleIncallSonification() stream %d starting %d device %x", stream, starting, outputDesc->mDevice);
|
|
if (outputDesc->isUsedByStream((AudioSystem::stream_type)stream)) {
|
|
if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) {
|
|
LOGV("handleIncallSonification() low visibility");
|
|
setStreamMute(stream, starting, mHardwareOutput);
|
|
} else {
|
|
if (starting) {
|
|
mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL);
|
|
} else {
|
|
mpClientInterface->stopTone();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// --- AudioOutputDescriptor class implementation
|
|
|
|
AudioPolicyManagerGeneric::AudioOutputDescriptor::AudioOutputDescriptor()
|
|
: mSamplingRate(0), mFormat(0), mChannels(0), mLatency(0),
|
|
mFlags((AudioSystem::output_flags)0), mDevice(0)
|
|
{
|
|
// clear usage count for all stream types
|
|
for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
|
|
mRefCount[i] = 0;
|
|
}
|
|
}
|
|
|
|
uint32_t AudioPolicyManagerGeneric::AudioOutputDescriptor::device()
|
|
{
|
|
return mDevice;
|
|
}
|
|
|
|
void AudioPolicyManagerGeneric::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta)
|
|
{
|
|
if ((delta + (int)mRefCount[stream]) < 0) {
|
|
LOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]);
|
|
mRefCount[stream] = 0;
|
|
return;
|
|
}
|
|
mRefCount[stream] += delta;
|
|
LOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]);
|
|
}
|
|
|
|
uint32_t AudioPolicyManagerGeneric::AudioOutputDescriptor::refCount()
|
|
{
|
|
uint32_t refcount = 0;
|
|
for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
|
|
refcount += mRefCount[i];
|
|
}
|
|
return refcount;
|
|
}
|
|
|
|
// --- AudioInputDescriptor class implementation
|
|
|
|
AudioPolicyManagerGeneric::AudioInputDescriptor::AudioInputDescriptor()
|
|
: mSamplingRate(0), mFormat(0), mChannels(0),
|
|
mAcoustics((AudioSystem::audio_in_acoustics)0), mDevice(0), mRefCount(0)
|
|
{
|
|
}
|
|
|
|
}; // namespace android
|