1 /*
2  * Copyright (C) 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 AVCODEC_VIDEO_DECODER_INNER_DEMO_H
17 #define AVCODEC_VIDEO_DECODER_INNER_DEMO_H
18 
19 #include <atomic>
20 #include <fstream>
21 #include <thread>
22 #include <queue>
23 #include <string>
24 #include "surface/window.h"
25 #include "avcodec_common.h"
26 #include "avcodec_video_decoder.h"
27 #include "nocopyable.h"
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 #include "libavcodec/avcodec.h"
33 #ifdef __cplusplus
34 }
35 #endif
36 
37 namespace OHOS {
38 namespace MediaAVCodec {
39 namespace InnerVideoDemo {
40 class TestConsumerListener : public IBufferConsumerListener {
41 public:
42     TestConsumerListener(sptr<Surface> cs, std::string_view name);
43     ~TestConsumerListener();
44     void OnBufferAvailable() override;
45 
46 private:
47     int64_t timestamp_ = 0;
48     OHOS::Rect damage_ = {};
49     sptr<Surface> cs_ = nullptr;
50     std::unique_ptr<std::ofstream> outFile_;
51 };
52 
53 class VDecSignal {
54 public:
55     std::mutex inMutex_;
56     std::mutex outMutex_;
57     std::condition_variable inCond_;
58     std::condition_variable outCond_;
59     std::queue<uint32_t> inQueue_;
60     std::queue<uint32_t> outQueue_;
61     std::queue<std::shared_ptr<AVSharedMemory>> inBufferQueue_;
62     std::queue<std::shared_ptr<AVSharedMemory>> outBufferQueue_;
63     std::queue<AVCodecBufferInfo> infoQueue_;
64     std::queue<AVCodecBufferFlag> flagQueue_;
65 };
66 
67 class VDecDemoCallback : public AVCodecCallback, public NoCopyable {
68 public:
69     explicit VDecDemoCallback(std::shared_ptr<VDecSignal> signal);
70     virtual ~VDecDemoCallback() = default;
71 
72     void OnError(AVCodecErrorType errorType, int32_t errorCode) override;
73     void OnOutputFormatChanged(const Format &format) override;
74     void OnInputBufferAvailable(uint32_t index, std::shared_ptr<AVSharedMemory> buffer) override;
75     void OnOutputBufferAvailable(uint32_t index, AVCodecBufferInfo info, AVCodecBufferFlag flag,
76                                  std::shared_ptr<AVSharedMemory> buffer) override;
77 
78 private:
79     std::shared_ptr<VDecSignal> signal_;
80 };
81 
82 class VDecInnerDemo : public NoCopyable {
83 public:
84     VDecInnerDemo();
85     virtual ~VDecInnerDemo();
86     void RunCase(std::string &mode);
87 
88 private:
89     int32_t CreateDec();
90     int32_t Configure(const Format &format);
91     int32_t SetOutputSurface(sptr<Surface> surface);
92     sptr<Surface> GetSurface(std::string &mode);
93     int32_t Start();
94     int32_t Stop();
95     int32_t Flush();
96     int32_t Reset();
97     int32_t Release();
98     void InputFunc();
99     void OutputFunc();
100     void HandleInputEOS(const uint32_t &index);
101     int32_t HandleNormalInput(const uint32_t &index, const int64_t &pts, const size_t &size);
102     int32_t ExtractPacket();
103 
104     std::atomic<bool> isRunning_ = false;
105     std::unique_ptr<std::ifstream> inputFile_ = nullptr;
106     std::unique_ptr<std::ofstream> outFile_ = nullptr;
107     std::unique_ptr<std::thread> inputLoop_ = nullptr;
108     std::unique_ptr<std::thread> outputLoop_ = nullptr;
109     std::shared_ptr<AVCodecVideoDecoder> videoDec_ = nullptr;
110     std::shared_ptr<VDecSignal> signal_ = nullptr;
111     std::shared_ptr<VDecDemoCallback> cb_ = nullptr;
112 
113     // Extract packet
114     static constexpr int32_t VIDEO_INBUF_SIZE = 10240;
115     static constexpr int32_t VIDEO_REFILL_THRESH = 4096;
116     const AVCodec *codec_ = nullptr;
117     AVCodecParserContext *parser_ = nullptr;
118     AVCodecContext *codec_ctx_ = nullptr;
119     AVPacket *pkt_ = nullptr;
120     size_t data_size_ = 0;
121     uint8_t *data_ = nullptr;
122     uint8_t inbuf_[VIDEO_INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE] = {0};
123     bool file_end_ = false;
124 
125     std::string mode_ = "0";
126 };
127 } // namespace InnerVideoDemo
128 } // namespace MediaAVCodec
129 } // namespace OHOS
130 #endif // AVCODEC_VIDEO_DECODER_INNER_DEMO_H
131