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 #pragma once 18 19 #include <sys/types.h> 20 21 #include "AudioPort.h" 22 #include <RoutingStrategy.h> 23 #include <utils/Errors.h> 24 #include <utils/Timers.h> 25 #include <utils/KeyedVector.h> 26 #include <system/audio.h> 27 #include "AudioSourceDescriptor.h" 28 29 namespace android { 30 31 class IOProfile; 32 class AudioMix; 33 class AudioPolicyClientInterface; 34 class DeviceDescriptor; 35 36 // descriptor for audio outputs. Used to maintain current configuration of each opened audio output 37 // and keep track of the usage of this output by each audio stream type. 38 class AudioOutputDescriptor: public AudioPortConfig 39 { 40 public: 41 AudioOutputDescriptor(const sp<AudioPort>& port, 42 AudioPolicyClientInterface *clientInterface); 43 virtual ~AudioOutputDescriptor() {} 44 45 status_t dump(int fd); 46 void log(const char* indent); 47 48 audio_port_handle_t getId() const; 49 virtual audio_devices_t device() const; 50 virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor>& outputDesc); 51 virtual audio_devices_t supportedDevices(); 52 virtual bool isDuplicated() const { return false; } 53 virtual uint32_t latency() { return 0; } 54 virtual bool isFixedVolume(audio_devices_t device); 55 virtual sp<AudioOutputDescriptor> subOutput1() { return 0; } 56 virtual sp<AudioOutputDescriptor> subOutput2() { return 0; } 57 virtual bool setVolume(float volume, 58 audio_stream_type_t stream, 59 audio_devices_t device, 60 uint32_t delayMs, 61 bool force); 62 virtual void changeRefCount(audio_stream_type_t stream, int delta); 63 64 bool isActive(uint32_t inPastMs = 0) const; 65 bool isStreamActive(audio_stream_type_t stream, 66 uint32_t inPastMs = 0, 67 nsecs_t sysTime = 0) const; 68 69 virtual void toAudioPortConfig(struct audio_port_config *dstConfig, 70 const struct audio_port_config *srcConfig = NULL) const; 71 virtual sp<AudioPort> getAudioPort() const { return mPort; } 72 virtual void toAudioPort(struct audio_port *port) const; 73 74 audio_module_handle_t getModuleHandle() const; 75 76 audio_patch_handle_t getPatchHandle() const { return mPatchHandle; }; 77 void setPatchHandle(audio_patch_handle_t handle) { mPatchHandle = handle; }; 78 79 sp<AudioPort> mPort; 80 audio_devices_t mDevice; // current device this output is routed to 81 uint32_t mRefCount[AUDIO_STREAM_CNT]; // number of streams of each type using this output 82 nsecs_t mStopTime[AUDIO_STREAM_CNT]; 83 float mCurVolume[AUDIO_STREAM_CNT]; // current stream volume in dB 84 int mMuteCount[AUDIO_STREAM_CNT]; // mute request counter 85 bool mStrategyMutedByDevice[NUM_STRATEGIES]; // strategies muted because of incompatible 86 // device selection. See checkDeviceMuteStrategies() 87 AudioPolicyClientInterface *mClientInterface; 88 89 protected: 90 audio_patch_handle_t mPatchHandle; 91 audio_port_handle_t mId; 92 }; 93 94 // Audio output driven by a software mixer in audio flinger. 95 class SwAudioOutputDescriptor: public AudioOutputDescriptor 96 { 97 public: 98 SwAudioOutputDescriptor(const sp<IOProfile>& profile, 99 AudioPolicyClientInterface *clientInterface); 100 virtual ~SwAudioOutputDescriptor() {} 101 102 status_t dump(int fd); 103 104 void setIoHandle(audio_io_handle_t ioHandle); 105 106 virtual audio_devices_t device() const; 107 virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor>& outputDesc); 108 virtual audio_devices_t supportedDevices(); 109 virtual uint32_t latency(); 110 virtual bool isDuplicated() const { return (mOutput1 != NULL && mOutput2 != NULL); } 111 virtual bool isFixedVolume(audio_devices_t device); 112 virtual sp<AudioOutputDescriptor> subOutput1() { return mOutput1; } 113 virtual sp<AudioOutputDescriptor> subOutput2() { return mOutput2; } 114 virtual void changeRefCount(audio_stream_type_t stream, int delta); 115 virtual bool setVolume(float volume, 116 audio_stream_type_t stream, 117 audio_devices_t device, 118 uint32_t delayMs, 119 bool force); 120 121 virtual void toAudioPortConfig(struct audio_port_config *dstConfig, 122 const struct audio_port_config *srcConfig = NULL) const; 123 virtual void toAudioPort(struct audio_port *port) const; 124 125 const sp<IOProfile> mProfile; // I/O profile this output derives from 126 audio_io_handle_t mIoHandle; // output handle 127 uint32_t mLatency; // 128 audio_output_flags_t mFlags; // 129 AudioMix *mPolicyMix; // non NULL when used by a dynamic policy 130 sp<SwAudioOutputDescriptor> mOutput1; // used by duplicated outputs: first output 131 sp<SwAudioOutputDescriptor> mOutput2; // used by duplicated outputs: second output 132 uint32_t mDirectOpenCount; // number of clients using this output (direct outputs only) 133 audio_session_t mDirectClientSession; // session id of the direct output client 134 uint32_t mGlobalRefCount; // non-stream-specific ref count 135 }; 136 137 // Audio output driven by an input device directly. 138 class HwAudioOutputDescriptor: public AudioOutputDescriptor 139 { 140 public: 141 HwAudioOutputDescriptor(const sp<AudioSourceDescriptor>& source, 142 AudioPolicyClientInterface *clientInterface); 143 virtual ~HwAudioOutputDescriptor() {} 144 145 status_t dump(int fd); 146 147 virtual audio_devices_t supportedDevices(); 148 virtual bool setVolume(float volume, 149 audio_stream_type_t stream, 150 audio_devices_t device, 151 uint32_t delayMs, 152 bool force); 153 154 virtual void toAudioPortConfig(struct audio_port_config *dstConfig, 155 const struct audio_port_config *srcConfig = NULL) const; 156 virtual void toAudioPort(struct audio_port *port) const; 157 158 const sp<AudioSourceDescriptor> mSource; 159 160 }; 161 162 class SwAudioOutputCollection : 163 public DefaultKeyedVector< audio_io_handle_t, sp<SwAudioOutputDescriptor> > 164 { 165 public: 166 bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const; 167 168 /** 169 * return whether a stream is playing remotely, override to change the definition of 170 * local/remote playback, used for instance by notification manager to not make 171 * media players lose audio focus when not playing locally 172 * For the base implementation, "remotely" means playing during screen mirroring which 173 * uses an output for playback with a non-empty, non "0" address. 174 */ 175 bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) const; 176 177 /** 178 * returns the A2DP output handle if it is open or 0 otherwise 179 */ 180 audio_io_handle_t getA2dpOutput() const; 181 182 sp<SwAudioOutputDescriptor> getOutputFromId(audio_port_handle_t id) const; 183 184 sp<SwAudioOutputDescriptor> getPrimaryOutput() const; 185 186 /** 187 * return true if any output is playing anything besides the stream to ignore 188 */ 189 bool isAnyOutputActive(audio_stream_type_t streamToIgnore) const; 190 191 audio_devices_t getSupportedDevices(audio_io_handle_t handle) const; 192 193 status_t dump(int fd) const; 194 }; 195 196 class HwAudioOutputCollection : 197 public DefaultKeyedVector< audio_io_handle_t, sp<HwAudioOutputDescriptor> > 198 { 199 public: 200 bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const; 201 202 /** 203 * return true if any output is playing anything besides the stream to ignore 204 */ 205 bool isAnyOutputActive(audio_stream_type_t streamToIgnore) const; 206 207 status_t dump(int fd) const; 208 }; 209 210 211 }; // namespace android 212
