AudioInputDescriptor.cpp revision 7281aa9810b33eff47b00104db26c97c77931611
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "APM::AudioInputDescriptor" 18//#define LOG_NDEBUG 0 19 20#include "AudioInputDescriptor.h" 21#include "IOProfile.h" 22#include "AudioGain.h" 23#include "HwModule.h" 24#include <media/AudioPolicy.h> 25#include <policy.h> 26 27namespace android { 28 29AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 30 : mIoHandle(0), 31 mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), 32 mProfile(profile), mId(0) 33{ 34 if (profile != NULL) { 35 profile->pickAudioProfile(mSamplingRate, mChannelMask, mFormat); 36 if (profile->mGains.size() > 0) { 37 profile->mGains[0]->getDefaultConfig(&mGain); 38 } 39 } 40} 41 42void AudioInputDescriptor::setIoHandle(audio_io_handle_t ioHandle) 43{ 44 mId = AudioPort::getNextUniqueId(); 45 mIoHandle = ioHandle; 46} 47 48audio_module_handle_t AudioInputDescriptor::getModuleHandle() const 49{ 50 if (mProfile == 0) { 51 return 0; 52 } 53 return mProfile->getModuleHandle(); 54} 55 56uint32_t AudioInputDescriptor::getOpenRefCount() const 57{ 58 return mSessions.getOpenCount(); 59} 60 61audio_port_handle_t AudioInputDescriptor::getId() const 62{ 63 return mId; 64} 65 66audio_source_t AudioInputDescriptor::inputSource() const 67{ 68 // TODO: return highest priority input source 69 return mSessions.size() > 0 ? mSessions.valueAt(0)->inputSource() : 70 AUDIO_SOURCE_DEFAULT; 71} 72 73void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig, 74 const struct audio_port_config *srcConfig) const 75{ 76 ALOG_ASSERT(mProfile != 0, 77 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 78 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 79 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 80 if (srcConfig != NULL) { 81 dstConfig->config_mask |= srcConfig->config_mask; 82 } 83 84 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 85 86 dstConfig->id = mId; 87 dstConfig->role = AUDIO_PORT_ROLE_SINK; 88 dstConfig->type = AUDIO_PORT_TYPE_MIX; 89 dstConfig->ext.mix.hw_module = getModuleHandle(); 90 dstConfig->ext.mix.handle = mIoHandle; 91 dstConfig->ext.mix.usecase.source = inputSource(); 92} 93 94void AudioInputDescriptor::toAudioPort(struct audio_port *port) const 95{ 96 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 97 98 mProfile->toAudioPort(port); 99 port->id = mId; 100 toAudioPortConfig(&port->active_config); 101 port->ext.mix.hw_module = getModuleHandle(); 102 port->ext.mix.handle = mIoHandle; 103 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 104} 105 106void AudioInputDescriptor::setPreemptedSessions(const SortedVector<audio_session_t>& sessions) 107{ 108 mPreemptedSessions = sessions; 109} 110 111SortedVector<audio_session_t> AudioInputDescriptor::getPreemptedSessions() const 112{ 113 return mPreemptedSessions; 114} 115 116bool AudioInputDescriptor::hasPreemptedSession(audio_session_t session) const 117{ 118 return (mPreemptedSessions.indexOf(session) >= 0); 119} 120 121void AudioInputDescriptor::clearPreemptedSessions() 122{ 123 mPreemptedSessions.clear(); 124} 125 126bool AudioInputDescriptor::isActive() const { 127 return mSessions.hasActiveSession(); 128} 129 130bool AudioInputDescriptor::isSourceActive(audio_source_t source) const 131{ 132 return mSessions.isSourceActive(source); 133} 134 135bool AudioInputDescriptor::isSoundTrigger() const { 136 // sound trigger and non sound trigger sessions are not mixed 137 // on a given input 138 return mSessions.valueAt(0)->isSoundTrigger(); 139} 140 141sp<AudioSession> AudioInputDescriptor::getAudioSession( 142 audio_session_t session) const { 143 return mSessions.valueFor(session); 144} 145 146AudioSessionCollection AudioInputDescriptor::getActiveAudioSessions() const 147{ 148 return mSessions.getActiveSessions(); 149} 150 151status_t AudioInputDescriptor::addAudioSession(audio_session_t session, 152 const sp<AudioSession>& audioSession) { 153 audioSession->setDeviceConfig(mFormat, mSamplingRate, mChannelMask); 154 return mSessions.addSession(session, audioSession); 155} 156 157status_t AudioInputDescriptor::removeAudioSession(audio_session_t session) { 158 return mSessions.removeSession(session); 159} 160 161status_t AudioInputDescriptor::dump(int fd) 162{ 163 const size_t SIZE = 256; 164 char buffer[SIZE]; 165 String8 result; 166 167 snprintf(buffer, SIZE, " ID: %d\n", getId()); 168 result.append(buffer); 169 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 170 result.append(buffer); 171 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 172 result.append(buffer); 173 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 174 result.append(buffer); 175 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 176 result.append(buffer); 177 178 write(fd, result.string(), result.size()); 179 180 mSessions.dump(fd, 1); 181 182 return NO_ERROR; 183} 184 185bool AudioInputCollection::isSourceActive(audio_source_t source) const 186{ 187 for (size_t i = 0; i < size(); i++) { 188 const sp<AudioInputDescriptor> inputDescriptor = valueAt(i); 189 if (inputDescriptor->isSourceActive(source)) { 190 return true; 191 } 192 } 193 return false; 194} 195 196sp<AudioInputDescriptor> AudioInputCollection::getInputFromId(audio_port_handle_t id) const 197{ 198 sp<AudioInputDescriptor> inputDesc = NULL; 199 for (size_t i = 0; i < size(); i++) { 200 inputDesc = valueAt(i); 201 if (inputDesc->getId() == id) { 202 break; 203 } 204 } 205 return inputDesc; 206} 207 208uint32_t AudioInputCollection::activeInputsCount() const 209{ 210 uint32_t count = 0; 211 for (size_t i = 0; i < size(); i++) { 212 const sp<AudioInputDescriptor> inputDescriptor = valueAt(i); 213 if (inputDescriptor->isActive()) { 214 count++; 215 } 216 } 217 return count; 218} 219 220audio_io_handle_t AudioInputCollection::getActiveInput(bool ignoreVirtualInputs) 221{ 222 for (size_t i = 0; i < size(); i++) { 223 const sp<AudioInputDescriptor> inputDescriptor = valueAt(i); 224 if ((inputDescriptor->isActive()) 225 && (!ignoreVirtualInputs || 226 !is_virtual_input_device(inputDescriptor->mDevice))) { 227 return keyAt(i); 228 } 229 } 230 return 0; 231} 232 233audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const 234{ 235 sp<AudioInputDescriptor> inputDesc = valueFor(handle); 236 audio_devices_t devices = inputDesc->mProfile->getSupportedDevicesType(); 237 return devices; 238} 239 240status_t AudioInputCollection::dump(int fd) const 241{ 242 const size_t SIZE = 256; 243 char buffer[SIZE]; 244 245 snprintf(buffer, SIZE, "\nInputs dump:\n"); 246 write(fd, buffer, strlen(buffer)); 247 for (size_t i = 0; i < size(); i++) { 248 snprintf(buffer, SIZE, "- Input %d dump:\n", keyAt(i)); 249 write(fd, buffer, strlen(buffer)); 250 valueAt(i)->dump(fd); 251 } 252 253 return NO_ERROR; 254} 255 256}; //namespace android 257