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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_TS_RTP_CODEC_H
17 #define OHOS_SHARING_TS_RTP_CODEC_H
18 
19 #include <memory>
20 #include <queue>
21 #include <thread>
22 #include "frame/frame.h"
23 #include "frame/frame_merger.h"
24 #include "rtp_codec.h"
25 #include "rtp_maker.h"
26 extern "C" {
27 #include <libavformat/avformat.h>
28 }
29 
30 namespace OHOS {
31 namespace Sharing {
32 class RtpDecoderTs : public RtpDecoder {
33 public:
34     using Ptr = std::shared_ptr<RtpDecoderTs>;
35 
36     RtpDecoderTs();
37     ~RtpDecoderTs();
38 
39     void Release();
40 
41     void InputRtp(const RtpPacket::Ptr &rtp) override;
42     void SetOnFrame(const OnFrame &cb) override;
43 
44 private:
45     void StartDecoding();
46     int ReadPacket(uint8_t *buf, int buf_size);
47 
48     static int StaticReadPacket(void *opaque, uint8_t *buf, int buf_size);
49 
50 private:
51     bool exit_ = false;
52     int videoStreamIndex_ = -1;
53     int audioStreamIndex_ = -1;
54 
55     std::mutex queueMutex_;
56     std::queue<RtpPacket::Ptr> dataQueue_;
57     std::unique_ptr<std::thread> decodeThread_;
58 
59     AVIOContext *avioContext_ = nullptr;
60     AVFormatContext *avFormatContext_ = nullptr;
61 };
62 
63 class RtpEncoderTs : public RtpEncoder,
64                      public RtpMaker {
65 public:
66     using Ptr = std::shared_ptr<RtpEncoderTs>;
67 
68     void Release();
69 
70     RtpEncoderTs(uint32_t ssrc, uint32_t mtuSize, uint32_t sampleRate, uint8_t payloadType, uint16_t seq = 0);
71     ~RtpEncoderTs();
72 
73     void InputFrame(const Frame::Ptr &frame) override;
74     void SetOnRtpPack(const OnRtpPack &cb) override;
75 
76 private:
77     void StartEncoding();
78     void RemoveFrameAfterMuxing();
79     Frame::Ptr ReadFrame(AVPacket *packet);
80     void SaveFrame(Frame::Ptr frame);
81     static int WritePacket(void *opaque, uint8_t *buf, int buf_size);
82 
83 private:
84     bool exit_ = false;
85     uint8_t *avioCtxBuffer_ = nullptr;
86 
87     bool keyFrame_ = false;
88     uint32_t timeStamp_ = 0;
89     FrameMerger merger_;
90 
91     std::mutex queueMutex_;
92     std::mutex cbLockMutex_;
93     std::queue<Frame::Ptr> dataQueue_;
94     std::unique_ptr<std::thread> encodeThread_;
95 
96     AVCodecID audioCodeId_ = AV_CODEC_ID_NONE;
97     AVStream *videoStream = nullptr;
98     AVStream *audioStream = nullptr;
99     AVIOContext *avioContext_ = nullptr;
100     AVFormatContext *avFormatContext_ = nullptr;
101 };
102 } // namespace Sharing
103 } // namespace OHOS
104 #endif
105