1 /* 2 * Copyright (C) 2020 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 #include <atomic> 19 #include <android/hardware/audio/6.0/IStreamOut.h> 20 #include <android/hardware/audio/6.0/IDevice.h> 21 #include "stream_common.h" 22 #include "io_thread.h" 23 #include "primary_device.h" 24 25 namespace android { 26 namespace hardware { 27 namespace audio { 28 namespace V6_0 { 29 namespace implementation { 30 31 using ::android::sp; 32 using ::android::hardware::hidl_bitfield; 33 using ::android::hardware::hidl_string; 34 using ::android::hardware::hidl_vec; 35 using ::android::hardware::Return; 36 using namespace ::android::hardware::audio::common::V6_0; 37 using namespace ::android::hardware::audio::V6_0; 38 39 struct StreamOut : public IStreamOut { 40 StreamOut(sp<PrimaryDevice> dev, 41 int32_t ioHandle, 42 const DeviceAddress& device, 43 const AudioConfig& config, 44 hidl_bitfield<AudioOutputFlag> flags, 45 const SourceMetadata& sourceMetadata); 46 ~StreamOut(); 47 48 // IStream 49 Return<uint64_t> getFrameSize() override; 50 Return<uint64_t> getFrameCount() override; 51 Return<uint64_t> getBufferSize() override; 52 Return<uint32_t> getSampleRate() override; 53 Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb) override; 54 Return<Result> setSampleRate(uint32_t sampleRateHz) override; 55 Return<hidl_bitfield<AudioChannelMask>> getChannelMask() override; 56 Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb) override; 57 Return<Result> setChannelMask(hidl_bitfield<AudioChannelMask> mask) override; 58 Return<AudioFormat> getFormat() override; 59 Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override; 60 Return<Result> setFormat(AudioFormat format) override; 61 Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override; 62 Return<Result> addEffect(uint64_t effectId) override; 63 Return<Result> removeEffect(uint64_t effectId) override; 64 Return<Result> standby() override; 65 Return<void> getDevices(getDevices_cb _hidl_cb) override; 66 Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override; 67 Return<Result> setHwAvSync(uint32_t hwAvSync) override; 68 Return<void> getParameters(const hidl_vec<ParameterValue>& context, 69 const hidl_vec<hidl_string>& keys, 70 getParameters_cb _hidl_cb) override; 71 Return<Result> setParameters(const hidl_vec<ParameterValue>& context, 72 const hidl_vec<ParameterValue>& parameters) override; 73 Return<Result> start() override; 74 Return<Result> stop() override; 75 Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override; 76 Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override; 77 Return<Result> close() override; 78 79 // IStreamOut 80 Return<uint32_t> getLatency() override; 81 Return<Result> setVolume(float left, float right) override; 82 Return<void> updateSourceMetadata(const SourceMetadata& sourceMetadata) override; 83 Return<void> prepareForWriting(uint32_t frameSize, uint32_t framesCount, 84 prepareForWriting_cb _hidl_cb) override; 85 Return<void> getRenderPosition(getRenderPosition_cb _hidl_cb) override; 86 Return<void> getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) override; 87 Return<Result> setCallback(const sp<IStreamOutCallback>& callback) override; 88 Return<Result> clearCallback() override; 89 Return<Result> setEventCallback(const sp<IStreamOutEventCallback>& callback) override; 90 Return<void> supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) override; 91 Return<Result> pause() override; 92 Return<Result> resume() override; 93 Return<bool> supportsDrain() override; 94 Return<Result> drain(AudioDrain type) override; 95 Return<Result> flush() override; 96 Return<void> getPresentationPosition(getPresentationPosition_cb _hidl_cb) override; 97 Return<Result> selectPresentation(int32_t presentationId, int32_t programId) override; 98 Return<void> getDualMonoMode(getDualMonoMode_cb _hidl_cb) override; 99 Return<Result> setDualMonoMode(DualMonoMode mode) override; 100 Return<void> getAudioDescriptionMixLevel(getAudioDescriptionMixLevel_cb _hidl_cb) override; 101 Return<Result> setAudioDescriptionMixLevel(float leveldB) override; 102 Return<void> getPlaybackRateParameters(getPlaybackRateParameters_cb _hidl_cb) override; 103 Return<Result> setPlaybackRateParameters(const PlaybackRate &playbackRate) override; 104 105 void setMasterVolume(float volume); getEffectiveVolumeStreamOut106 float getEffectiveVolume() const { return mEffectiveVolume; } getDeviceAddressStreamOut107 const DeviceAddress &getDeviceAddress() const { return mCommon.m_device; } getAudioConfigStreamOut108 const AudioConfig &getAudioConfig() const { return mCommon.m_config; } getAudioOutputFlagsStreamOut109 const hidl_bitfield<AudioOutputFlag> &getAudioOutputFlags() const { return mCommon.m_flags; } 110 getFrameCounterStreamOut111 uint64_t &getFrameCounter() { return mFrames; } 112 113 private: 114 Result closeImpl(bool fromDctor); 115 void updateEffectiveVolumeLocked(); 116 117 sp<PrimaryDevice> mDev; 118 const StreamCommon mCommon; 119 const SourceMetadata mSourceMetadata; 120 std::unique_ptr<IOThread> mWriteThread; 121 122 float mMasterVolume = 1.0f; // requires mMutex 123 float mStreamVolume = 1.0f; // requires mMutex 124 std::atomic<float> mEffectiveVolume = 1.0f; 125 std::mutex mMutex; 126 127 // The count is not reset to zero when output enters standby. 128 uint64_t mFrames = 0; 129 }; 130 131 } // namespace implementation 132 } // namespace V6_0 133 } // namespace audio 134 } // namespace hardware 135 } // namespace android 136