OMX.h revision b1d666f5cb555d135eb69e005e88a03330bbb54c 
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 getState(
63            node_id node, OMX_STATETYPE* state);
64
65    virtual status_t enableGraphicBuffers(
66            node_id node, OMX_U32 port_index, OMX_BOOL enable);
67
68    virtual status_t getGraphicBufferUsage(
69            node_id node, OMX_U32 port_index, OMX_U32* usage);
70
71    virtual status_t storeMetaDataInBuffers(
72            node_id node, OMX_U32 port_index, OMX_BOOL enable);
73
74    virtual status_t useBuffer(
75            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
76            buffer_id *buffer);
77
78    virtual status_t useGraphicBuffer(
79            node_id node, OMX_U32 port_index,
80            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
81
82    virtual status_t allocateBuffer(
83            node_id node, OMX_U32 port_index, size_t size,
84            buffer_id *buffer, void **buffer_data);
85
86    virtual status_t allocateBufferWithBackup(
87            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
88            buffer_id *buffer);
89
90    virtual status_t freeBuffer(
91            node_id node, OMX_U32 port_index, buffer_id buffer);
92
93    virtual status_t fillBuffer(node_id node, buffer_id buffer);
94
95    virtual status_t emptyBuffer(
96            node_id node,
97            buffer_id buffer,
98            OMX_U32 range_offset, OMX_U32 range_length,
99            OMX_U32 flags, OMX_TICKS timestamp);
100
101    virtual status_t getExtensionIndex(
102            node_id node,
103            const char *parameter_name,
104            OMX_INDEXTYPE *index);
105
106    virtual void binderDied(const wp<IBinder> &the_late_who);
107
108    OMX_ERRORTYPE OnEvent(
109            node_id node,
110            OMX_IN OMX_EVENTTYPE eEvent,
111            OMX_IN OMX_U32 nData1,
112            OMX_IN OMX_U32 nData2,
113            OMX_IN OMX_PTR pEventData);
114
115    OMX_ERRORTYPE OnEmptyBufferDone(
116            node_id node, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
117
118    OMX_ERRORTYPE OnFillBufferDone(
119            node_id node, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
120
121    void invalidateNodeID(node_id node);
122
123protected:
124    virtual ~OMX();
125
126private:
127    struct CallbackDispatcherThread;
128    struct CallbackDispatcher;
129
130    Mutex mLock;
131    OMXMaster *mMaster;
132    int32_t mNodeCounter;
133
134    KeyedVector<wp<IBinder>, OMXNodeInstance *> mLiveNodes;
135    KeyedVector<node_id, OMXNodeInstance *> mNodeIDToInstance;
136    KeyedVector<node_id, sp<CallbackDispatcher> > mDispatchers;
137
138    node_id makeNodeID(OMXNodeInstance *instance);
139    OMXNodeInstance *findInstance(node_id node);
140    sp<CallbackDispatcher> findDispatcher(node_id node);
141
142    void invalidateNodeID_l(node_id node);
143
144    OMX(const OMX &);
145    OMX &operator=(const OMX &);
146};
147
148}  // namespace android
149
150#endif  // ANDROID_OMX_H_
151