1 /* 2 * Copyright (c) 2023 Shenzhen Kaihong Digital Industry Development 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_SHARING_FRAME_MERGE_H 17 #define OHOS_SHARING_FRAME_MERGE_H 18 19 #include <functional> 20 #include <list> 21 #include <memory> 22 #include "frame.h" 23 24 namespace OHOS { 25 namespace Sharing { 26 /** 27 * Merge some frames with the same timestamp 28 */ 29 class FrameMerger { 30 public: 31 using onOutput = 32 std::function<void(uint32_t dts, uint32_t pts, const DataBuffer::Ptr &buffer, bool have_key_frame)>; 33 using Ptr = std::shared_ptr<FrameMerger>; 34 35 enum { 36 NONE = 0, 37 H264_PREFIX, 38 MP4_NAL_SIZE, 39 }; 40 41 public: 42 FrameMerger() = default; 43 ~FrameMerger() = default; 44 45 void Clear(); 46 void SetType(int32_t type); 47 bool InputFrame(const Frame::Ptr &frame, DataBuffer::Ptr &buffer, const onOutput &cb); 48 49 private: 50 bool WillFlush(const Frame::Ptr &frame) const; 51 void DoMerge(DataBuffer::Ptr &merged, const Frame::Ptr &frame) const; 52 53 private: 54 bool haveDecodeAbleFrame_ = false; 55 int32_t type_; 56 57 std::list<Frame::Ptr> frameCache_; 58 }; 59 } // namespace Sharing 60 } // namespace OHOS 61 #endif