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 AVMETA_FRAME_CONVERTER_H 17 #define AVMETA_FRAME_CONVERTER_H 18 19 #include <mutex> 20 #include <condition_variable> 21 #include <gst/gst.h> 22 #include "i_avmetadatahelper_service.h" 23 #include "avsharedmemory.h" 24 #include "inner_msg_define.h" 25 #include "gst_msg_processor.h" 26 #include "nocopyable.h" 27 28 namespace OHOS { 29 namespace Media { 30 class AVMetaFrameConverter : public NoCopyable { 31 public: 32 AVMetaFrameConverter(); 33 ~AVMetaFrameConverter(); 34 35 int32_t Init(const OutputConfiguration &outConfig); 36 std::shared_ptr<AVSharedMemory> Convert(GstCaps &inCaps, GstBuffer &inBuf); 37 38 private: 39 int32_t SetupConvPipeline(); 40 int32_t SetupConvSrc(); 41 int32_t SetupConvSink(const OutputConfiguration &outConfig); 42 int32_t SetupMsgProcessor(); 43 void UninstallPipeline(); 44 int32_t ChangeState(GstState targetState); 45 int32_t PrepareConvert(GstCaps &inCaps); 46 std::shared_ptr<AVSharedMemory> GetConvertResult(); 47 int32_t Reset(); 48 void OnNotifyMessage(const InnerMessage &msg); 49 static GstFlowReturn OnNotifyNewSample(GstElement *elem, AVMetaFrameConverter *thiz); 50 51 OutputConfiguration outConfig_; 52 GstPipeline *pipeline_ = nullptr; 53 GstElement *vidShMemSink_ = nullptr; 54 GstElement *appSrc_ = nullptr; 55 std::unique_ptr<GstMsgProcessor> msgProcessor_; 56 GstState currState_ = GST_STATE_NULL; 57 GstCaps *lastCaps_ = nullptr; 58 GstBuffer *lastResult_ = nullptr; 59 std::mutex mutex_; 60 std::condition_variable cond_; 61 bool startConverting_ = false; 62 std::vector<GstBuffer *> allResults_; 63 }; 64 } // namespace Media 65 } // namespace OHOS 66 #endif // AVMETA_FRAME_CONVERTER_H 67