OMX.h revision e2ce6458659c6e1bad420357b61dc10cd8bbe2ab 
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 ANDROID_OMX_H_
18#define ANDROID_OMX_H_
19
20#include <media/IOMX.h>
21#include <utils/threads.h>
22#include <utils/KeyedVector.h>
23
24namespace android {
25
26struct OMXMaster;
27class OMXNodeInstance;
28
29class OMX : public BnOMX,
30            public IBinder::DeathRecipient {
31public:
32    OMX();
33
34    virtual bool livesLocally(pid_t pid);
35
36    virtual status_t listNodes(List<ComponentInfo> *list);
37
38    virtual status_t allocateNode(
39            const char *name, const sp<IOMXObserver> &observer, node_id *node);
40
41    virtual status_t freeNode(node_id node);
42
43    virtual status_t sendCommand(
44            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
45
46    virtual status_t getParameter(
47            node_id node, OMX_INDEXTYPE index,
48            void *params, size_t size);
49
50    virtual status_t setParameter(
51            node_id node, OMX_INDEXTYPE index,
52            const void *params, size_t size);
53
54    virtual status_t getConfig(
55            node_id node, OMX_INDEXTYPE index,
56            void *params, size_t size);
57
58    virtual status_t setConfig(
59            node_id node, OMX_INDEXTYPE index,
60            const void *params, size_t size);
61
62    virtual status_t enableGraphicBuffers(
63            node_id node, OMX_U32 port_index, OMX_BOOL enable);
64
65    virtual status_t getGraphicBufferUsage(
66            node_id node, OMX_U32 port_index, OMX_U32* usage);
67
68    virtual status_t storeMetaDataInBuffers(
69            node_id node, OMX_U32 port_index, OMX_BOOL enable);
70
71    virtual status_t useBuffer(
72            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
73            buffer_id *buffer);
74
75    virtual status_t useGraphicBuffer(
76            node_id node, OMX_U32 port_index,
77            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
78
79    virtual status_t allocateBuffer(
80            node_id node, OMX_U32 port_index, size_t size,
81            buffer_id *buffer, void **buffer_data);
82
83    virtual status_t allocateBufferWithBackup(
84            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
85            buffer_id *buffer);
86
87    virtual status_t freeBuffer(
88            node_id node, OMX_U32 port_index, buffer_id buffer);
89
90    virtual status_t fillBuffer(node_id node, buffer_id buffer);
91
92    virtual status_t emptyBuffer(
93            node_id node,
94            buffer_id buffer,
95            OMX_U32 range_offset, OMX_U32 range_length,
96            OMX_U32 flags, OMX_TICKS timestamp);
97
98    virtual status_t getExtensionIndex(
99            node_id node,
100            const char *parameter_name,
101            OMX_INDEXTYPE *index);
102
103    virtual void binderDied(const wp<IBinder> &the_late_who);
104
105    OMX_ERRORTYPE OnEvent(
106            node_id node,
107            OMX_IN OMX_EVENTTYPE eEvent,
108            OMX_IN OMX_U32 nData1,
109            OMX_IN OMX_U32 nData2,
110            OMX_IN OMX_PTR pEventData);
111
112    OMX_ERRORTYPE OnEmptyBufferDone(
113            node_id node, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
114
115    OMX_ERRORTYPE OnFillBufferDone(
116            node_id node, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
117
118    void invalidateNodeID(node_id node);
119
120protected:
121    virtual ~OMX();
122
123private:
124    struct CallbackDispatcher;
125
126    Mutex mLock;
127    OMXMaster *mMaster;
128    int32_t mNodeCounter;
129
130    KeyedVector<wp<IBinder>, OMXNodeInstance *> mLiveNodes;
131    KeyedVector<node_id, OMXNodeInstance *> mNodeIDToInstance;
132    KeyedVector<node_id, sp<CallbackDispatcher> > mDispatchers;
133
134    node_id makeNodeID(OMXNodeInstance *instance);
135    OMXNodeInstance *findInstance(node_id node);
136    sp<CallbackDispatcher> findDispatcher(node_id node);
137
138    void invalidateNodeID_l(node_id node);
139
140    OMX(const OMX &);
141    OMX &operator=(const OMX &);
142};
143
144}  // namespace android
145
146#endif  // ANDROID_OMX_H_
147