1 /* 2 * Copyright (c) 2022-2023 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 OHOS_IMAGE_SINK_DECODER_H 17 #define OHOS_IMAGE_SINK_DECODER_H 18 19 #include <thread> 20 #include <mutex> 21 #include <queue> 22 #include <condition_variable> 23 #include <cstddef> 24 25 #include "avsharedmemory.h" 26 #include "avcodec_common.h" 27 #include "avcodec_video_decoder.h" 28 #include "media_errors.h" 29 #include "format.h" 30 #include "surface.h" 31 #include "iconsumer_surface.h" 32 33 #include "data_buffer.h" 34 #include "iimage_sink_processor_listener.h" 35 #include "image_decoder_callback.h" 36 #include "video_param.h" 37 38 namespace OHOS { 39 namespace DistributedHardware { 40 class ConsumBufferListener : public IBufferConsumerListener { 41 public: ConsumBufferListener(const std::shared_ptr<ImageSinkDecoder> decoder)42 ConsumBufferListener(const std::shared_ptr<ImageSinkDecoder> decoder) : decoder_(decoder) {}; 43 ~ConsumBufferListener() = default; 44 void OnBufferAvailable() override; 45 private: 46 static const constexpr char *LOG_TAG = "ConsumBufferListener"; 47 std::shared_ptr<ImageSinkDecoder> decoder_; 48 }; 49 class ImageSinkDecoder : public std::enable_shared_from_this<ImageSinkDecoder> { 50 public: ImageSinkDecoder(const std::shared_ptr<IImageSinkProcessorListener> & imageListener)51 explicit ImageSinkDecoder(const std::shared_ptr<IImageSinkProcessorListener> &imageListener) 52 : imageProcessorListener_(imageListener) {}; 53 ~ImageSinkDecoder() = default; 54 55 int32_t ConfigureDecoder(const VideoParam &configParam); 56 int32_t ReleaseDecoder(); 57 int32_t StartDecoder(); 58 int32_t StopDecoder(); 59 int32_t SetOutputSurface(sptr<Surface> &surface); 60 int32_t InputScreenData(const std::shared_ptr<DataBuffer> &data); 61 int32_t AddSurface(); 62 void ConsumeSurface(); 63 uint8_t *GetLastFrame(); 64 sptr<SurfaceBuffer> GetWinSurfaceBuffer(); 65 void NormalProcess(sptr<SurfaceBuffer> surfaceBuffer, sptr<SurfaceBuffer> windowSurfaceBuffer); 66 void OffsetProcess(sptr<SurfaceBuffer> surfaceBuffer, sptr<SurfaceBuffer> windowSurfaceBuffer); 67 68 void OnError(Media::AVCodecErrorType errorType, int32_t errorCode); 69 void OnInputBufferAvailable(uint32_t index); 70 void OnOutputBufferAvailable(uint32_t index, Media::AVCodecBufferInfo info, Media::AVCodecBufferFlag flag); 71 void OnOutputFormatChanged(const Media::Format &format); 72 73 private: 74 int32_t SetDecoderFormat(const VideoParam &configParam); 75 int32_t InitVideoDecoder(const VideoParam &configParam); 76 int32_t StartInputThread(); 77 int32_t StopInputThread(); 78 void DecodeScreenData(); 79 int32_t ProcessData(const std::shared_ptr<DataBuffer> &screenData, const int32_t bufferIndex); 80 81 private: 82 static const constexpr char *LOG_TAG = "ImageSinkDecoder"; 83 VideoParam configParam_; 84 std::mutex dataMutex_; 85 std::mutex decodeMutex_; 86 std::thread decodeThread_; 87 std::condition_variable decodeCond_; 88 89 uint8_t *lastFrame_ = nullptr; 90 int32_t lastFrameSize_ = 0; 91 Media::Format imageFormat_; 92 Media::AVCodecBufferInfo decoderBufferInfo_; 93 94 bool isDecoderReady_ = false; 95 uint32_t alignedHeight_ = 0; 96 sptr<IConsumerSurface> consumerSurface_; 97 sptr<Surface> producerSurface_; 98 sptr<Surface> windowSurface_; 99 sptr<IBufferConsumerListener> consumerBufferListener_; 100 std::queue<std::shared_ptr<DataBuffer>> videoDataQueue_; 101 std::queue<int32_t> bufferIndexQueue_; 102 std::shared_ptr<Media::AVCodecVideoDecoder> videoDecoder_; 103 std::shared_ptr<Media::AVCodecCallback> decodeVideoCallback_; 104 std::weak_ptr<IImageSinkProcessorListener> imageProcessorListener_; 105 }; 106 } // namespace DistributedHardware 107 } // namespace OHOS 108 #endif