| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <utils/RefBase.h> |
| #include <media/AudioPolicy.h> |
| #include <utils/KeyedVector.h> |
| #include <system/audio.h> |
| #include <utils/String8.h> |
| |
| namespace android { |
| |
| class SwAudioOutputDescriptor; |
| |
| /** |
| * custom mix entry in mPolicyMixes |
| */ |
| class AudioPolicyMix : public AudioMix, public RefBase { |
| public: |
| AudioPolicyMix(const AudioMix &mix); |
| AudioPolicyMix(const AudioPolicyMix&) = delete; |
| AudioPolicyMix& operator=(const AudioPolicyMix&) = delete; |
| |
| const sp<SwAudioOutputDescriptor> &getOutput() const; |
| |
| void setOutput(sp<SwAudioOutputDescriptor> &output); |
| |
| void clearOutput(); |
| |
| status_t dump(int fd, int spaces, int index) const; |
| |
| private: |
| sp<SwAudioOutputDescriptor> mOutput; // Corresponding output stream |
| }; |
| |
| |
| class AudioPolicyMixCollection : public DefaultKeyedVector<String8, sp<AudioPolicyMix> > |
| { |
| public: |
| status_t getAudioPolicyMix(const String8& address, sp<AudioPolicyMix> &policyMix) const; |
| |
| status_t registerMix(const String8& address, AudioMix mix, sp<SwAudioOutputDescriptor> desc); |
| |
| status_t unregisterMix(const String8& address); |
| |
| void closeOutput(sp<SwAudioOutputDescriptor> &desc); |
| |
| /** |
| * Try to find an output descriptor for the given attributes. |
| * |
| * @param[in] attributes to consider fowr the research of output descriptor. |
| * @param[out] desc to return if an output could be found. |
| * |
| * @return NO_ERROR if an output was found for the given attribute (in this case, the |
| * descriptor output param is initialized), error code otherwise. |
| */ |
| status_t getOutputForAttr(audio_attributes_t attributes, uid_t uid, |
| sp<SwAudioOutputDescriptor> &desc); |
| |
| audio_devices_t getDeviceAndMixForInputSource(audio_source_t inputSource, |
| audio_devices_t availableDeviceTypes, |
| sp<AudioPolicyMix> *policyMix); |
| |
| status_t getInputMixForAttr(audio_attributes_t attr, sp<AudioPolicyMix> *policyMix); |
| |
| status_t dump(int fd) const; |
| }; |
| |
| } // namespace android |