1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef AUDIO_SINK_SV_IMPL_H 17 #define AUDIO_SINK_SV_IMPL_H 18 19 #include "audio_sink.h" 20 #include "audio_renderer.h" 21 #include "audio_system_manager.h" 22 #include "audio_errors.h" 23 24 namespace OHOS { 25 namespace Media { 26 class AudioSinkSvImpl : public AudioSink { 27 public: 28 AudioSinkSvImpl(); 29 virtual ~AudioSinkSvImpl(); 30 31 GstCaps *GetCaps() override; 32 int32_t SetVolume(float volume) override; 33 int32_t GetVolume(float &volume) override; 34 int32_t GetMaxVolume(float &volume) override; 35 int32_t GetMinVolume(float &volume) override; 36 int32_t Prepare() override; 37 int32_t Start() override; 38 int32_t Stop() override; 39 int32_t Pause() override; 40 int32_t Drain() override; 41 int32_t Flush() override; 42 int32_t Release() override; 43 int32_t SetParameters(uint32_t bitsPerSample, uint32_t channels, uint32_t sampleRate) override; 44 int32_t GetParameters(uint32_t &bitsPerSample, uint32_t &channels, uint32_t &sampleRate) override; 45 int32_t GetMinimumBufferSize(uint32_t &bufferSize) override; 46 int32_t GetMinimumFrameCount(uint32_t &frameCount) override; 47 int32_t Write(uint8_t *buffer, size_t size) override; 48 int32_t GetAudioTime(uint64_t &time) override; 49 int32_t GetLatency(uint64_t &latency) const override; 50 int32_t SetParameter(int32_t ¶m) override; 51 bool Writeable() const override; 52 53 private: 54 std::unique_ptr<OHOS::AudioStandard::AudioRenderer> audioRenderer_; 55 void InitChannelRange(GstCaps *caps) const; 56 void InitRateRange(GstCaps *caps) const; 57 }; 58 } // namespace Media 59 } // namespace OHOS 60 #endif // AUDIO_SINK_SV_IMPL_H 61