1 /*
2  * Copyright 2018, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef STAGEFRIGHT_PLUGIN_LOADER_H_
18 
19 #define STAGEFRIGHT_PLUGIN_LOADER_H_
20 
21 #include <media/stagefright/CodecBase.h>
22 #include <media/stagefright/MediaCodecListWriter.h>
23 #include <media/stagefright/PersistentSurface.h>
24 #include <utils/Mutex.h>
25 
26 namespace android {
27 
28 class StagefrightPluginLoader {
29 public:
30     static const std::unique_ptr<StagefrightPluginLoader> &GetCCodecInstance();
31     ~StagefrightPluginLoader();
32 
33     CodecBase *createCodec();
34     MediaCodecListBuilderBase *createBuilder();
35     PersistentSurface *createInputSurface();
36 
37 private:
38     explicit StagefrightPluginLoader(const char *libPath);
39 
40     static Mutex sMutex;
41     static std::unique_ptr<StagefrightPluginLoader> sInstance;
42 
43     void *mLibHandle{nullptr};
44     CodecBase::CreateCodecFunc mCreateCodec{nullptr};
45     MediaCodecListBuilderBase::CreateBuilderFunc mCreateBuilder{nullptr};
46     CodecBase::CreateInputSurfaceFunc mCreateInputSurface{nullptr};
47 };
48 
49 }  // namespace android
50 
51 #endif  // STAGEFRIGHT_PLUGIN_LOADER_H_
52