1 /*
2  * Copyright (c) 2024 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 HISTREAMER_AUDIO_MP3_ENCODER_PLUGIN_H
17 #define HISTREAMER_AUDIO_MP3_ENCODER_PLUGIN_H
18 
19 #include <functional>
20 #include <mutex>
21 #include <vector>
22 #include "buffer/avbuffer.h"
23 #include "meta/meta.h"
24 #include "nocopyable.h"
25 #include "plugin/codec_plugin.h"
26 #include "plugin/plugin_definition.h"
27 
28 namespace OHOS {
29 namespace Media {
30 namespace Plugins {
31 namespace Mp3 {
32 class AudioMp3EncoderPlugin : public CodecPlugin {
33 public:
34     explicit AudioMp3EncoderPlugin(const std::string& name);
35 
36     ~AudioMp3EncoderPlugin();
37 
38      Status Init() override;
39 
40     Status Prepare() override;
41 
42     Status Reset() override;
43 
44     Status Start() override;
45 
46     Status Stop() override;
47 
48     Status SetParameter(const std::shared_ptr<Meta> &parameter) override;
49 
50     Status GetParameter(std::shared_ptr<Meta> &parameter) override;
51 
52     Status QueueInputBuffer(const std::shared_ptr<AVBuffer> &inputBuffer) override;
53 
54     Status QueueOutputBuffer(std::shared_ptr<AVBuffer> &outputBuffer) override;
55 
56     Status GetInputBuffers(std::vector<std::shared_ptr<AVBuffer>> &inputBuffers) override;
57 
58     Status GetOutputBuffers(std::vector<std::shared_ptr<AVBuffer>> &outputBuffers) override;
59 
60     Status Flush() override;
61 
62     Status Release() override;
63 
SetDataCallback(DataCallback * dataCallback)64     Status SetDataCallback(DataCallback* dataCallback) override
65     {
66         dataCallback_ = dataCallback;
67         return Status::OK;
68     }
69 
70 private:
71     bool CheckFormat();
72     Meta audioParameter_ ;
73     mutable std::mutex avMutex_ {};
74 
75     DataCallback* dataCallback_ {nullptr};
76     AudioSampleFormat audioSampleFormat_;
77 
78     struct LameInfo;
79     std::unique_ptr<LameInfo> lameInfo;
80 
81     int32_t lameInitFlag;
82     int32_t channels_;
83     int64_t bitrate_;
84     int64_t pts_;
85 
86     int32_t sampleRate_;
87     int32_t maxInputSize_;
88     int32_t maxOutputSize_;
89     int32_t outputSize_;
90     std::unique_ptr<unsigned char[]> lameMp3Buffer;
91 };
92 } // namespace Mp3
93 } // namespace Plugins
94 } // namespace Media
95 } // namespace OHOS
96 
97 #endif // HISTREAMER_AUDIO_MP3_ENCODER_PLUGIN_H