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 IAVCODEC_ENGINE_H 17 #define IAVCODEC_ENGINE_H 18 19 #include <cstdint> 20 #include <string> 21 #include <memory> 22 #include <refbase.h> 23 #include "nocopyable.h" 24 #include "avcodec_common.h" 25 #include "avcodec_info.h" 26 #include "avsharedmemory.h" 27 #include "format.h" 28 29 namespace OHOS { 30 class Surface; 31 32 namespace Media { 33 class IAVCodecEngineObs : public std::enable_shared_from_this<IAVCodecEngineObs> { 34 public: 35 virtual ~IAVCodecEngineObs() = default; 36 37 virtual void OnError(int32_t errorType, int32_t errorCode) = 0; 38 virtual void OnOutputFormatChanged(const Format &format) = 0; 39 virtual void OnInputBufferAvailable(uint32_t index) = 0; 40 virtual void OnOutputBufferAvailable(uint32_t index, AVCodecBufferInfo info, AVCodecBufferFlag flag) = 0; 41 }; 42 43 class IAVCodecEngine { 44 public: 45 virtual ~IAVCodecEngine() = default; 46 47 virtual int32_t Init(AVCodecType type, bool isMimeType, const std::string &name) = 0; 48 virtual int32_t Configure(const Format &format) = 0; 49 virtual int32_t Prepare() = 0; 50 virtual int32_t Start() = 0; 51 virtual int32_t Stop() = 0; 52 virtual int32_t Flush() = 0; 53 virtual int32_t Reset() = 0; 54 virtual int32_t NotifyEos() = 0; 55 virtual sptr<Surface> CreateInputSurface() = 0; 56 virtual int32_t SetOutputSurface(const sptr<Surface> &surface) = 0; 57 virtual std::shared_ptr<AVSharedMemory> GetInputBuffer(uint32_t index) = 0; 58 virtual int32_t QueueInputBuffer(uint32_t index, AVCodecBufferInfo info, AVCodecBufferFlag flag) = 0; 59 virtual std::shared_ptr<AVSharedMemory> GetOutputBuffer(uint32_t index) = 0; 60 virtual int32_t GetOutputFormat(Format &format) = 0; 61 virtual int32_t ReleaseOutputBuffer(uint32_t index, bool render) = 0; 62 virtual int32_t SetParameter(const Format &format) = 0; 63 virtual int32_t SetObs(const std::weak_ptr<IAVCodecEngineObs> &obs) = 0; 64 }; 65 } // namespace Media 66 } // namespace OHOS 67 #endif // IAVCODEC_ENGINE_H 68