1 /*
2  * Copyright (C) 2009 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 OMX_MASTER_H_
18 
19 #define OMX_MASTER_H_
20 
21 #include <OMXPluginBase.h>
22 
23 #include <utils/threads.h>
24 #include <utils/KeyedVector.h>
25 #include <utils/List.h>
26 #include <utils/String8.h>
27 
28 namespace android {
29 
30 struct OMXMaster : public OMXPluginBase {
31     OMXMaster();
32     virtual ~OMXMaster();
33 
34     virtual OMX_ERRORTYPE makeComponentInstance(
35             const char *name,
36             const OMX_CALLBACKTYPE *callbacks,
37             OMX_PTR appData,
38             OMX_COMPONENTTYPE **component);
39 
40     virtual OMX_ERRORTYPE destroyComponentInstance(
41             OMX_COMPONENTTYPE *component);
42 
43     virtual OMX_ERRORTYPE enumerateComponents(
44             OMX_STRING name,
45             size_t size,
46             OMX_U32 index);
47 
48     virtual OMX_ERRORTYPE getRolesOfComponent(
49             const char *name,
50             Vector<String8> *roles);
51 
52 private:
53     Mutex mLock;
54     List<OMXPluginBase *> mPlugins;
55     KeyedVector<String8, OMXPluginBase *> mPluginByComponentName;
56     KeyedVector<OMX_COMPONENTTYPE *, OMXPluginBase *> mPluginByInstance;
57 
58     void *mVendorLibHandle;
59 
60     void addVendorPlugin();
61     void addPlugin(const char *libname);
62     void addPlugin(OMXPluginBase *plugin);
63     void clearPlugins();
64 
65     OMXMaster(const OMXMaster &);
66     OMXMaster &operator=(const OMXMaster &);
67 };
68 
69 }  // namespace android
70 
71 #endif  // OMX_MASTER_H_
72