OMXMaster.h revision 8ae1d0bdcef22f2bdd8d283e0e615f3ba6c3f4cd 
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 <media/stagefright/OMXPluginBase.h>
22
23#include <utils/threads.h>
24#include <utils/KeyedVector.h>
25#include <utils/List.h>
26#include <utils/String8.h>
27
28namespace android {
29
30struct 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
52private:
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(OMXPluginBase *plugin);
62    void clearPlugins();
63
64    OMXMaster(const OMXMaster &);
65    OMXMaster &operator=(const OMXMaster &);
66};
67
68}  // namespace android
69
70#endif  // OMX_MASTER_H_
71