SimpleSoftOMXComponent.h revision 6fc72b01a3b67903b52f1d33b1ad5c960b5365f1 
1/*
2 * Copyright (C) 2011 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 SIMPLE_SOFT_OMX_COMPONENT_H_
18
19#define SIMPLE_SOFT_OMX_COMPONENT_H_
20
21#include "SoftOMXComponent.h"
22
23#include <media/stagefright/foundation/AHandlerReflector.h>
24#include <utils/RefBase.h>
25#include <utils/threads.h>
26#include <utils/Vector.h>
27
28namespace android {
29
30struct ALooper;
31
32struct SimpleSoftOMXComponent : public SoftOMXComponent {
33    SimpleSoftOMXComponent(
34            const char *name,
35            const OMX_CALLBACKTYPE *callbacks,
36            OMX_PTR appData,
37            OMX_COMPONENTTYPE **component);
38
39    virtual void prepareForDestruction();
40
41    void onMessageReceived(const sp<AMessage> &msg);
42
43protected:
44    struct BufferInfo {
45        OMX_BUFFERHEADERTYPE *mHeader;
46        bool mOwnedByUs;
47    };
48
49    struct PortInfo {
50        OMX_PARAM_PORTDEFINITIONTYPE mDef;
51        Vector<BufferInfo> mBuffers;
52        List<BufferInfo *> mQueue;
53
54        enum {
55            NONE,
56            DISABLING,
57            ENABLING,
58        } mTransition;
59    };
60
61    void addPort(const OMX_PARAM_PORTDEFINITIONTYPE &def);
62
63    virtual OMX_ERRORTYPE internalGetParameter(
64            OMX_INDEXTYPE index, OMX_PTR params);
65
66    virtual OMX_ERRORTYPE internalSetParameter(
67            OMX_INDEXTYPE index, const OMX_PTR params);
68
69    virtual void onQueueFilled(OMX_U32 portIndex);
70    List<BufferInfo *> &getPortQueue(OMX_U32 portIndex);
71
72    virtual void onPortFlushCompleted(OMX_U32 portIndex);
73    virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
74    virtual void onReset();
75
76    PortInfo *editPortInfo(OMX_U32 portIndex);
77
78private:
79    enum {
80        kWhatSendCommand,
81        kWhatEmptyThisBuffer,
82        kWhatFillThisBuffer,
83    };
84
85    Mutex mLock;
86
87    sp<ALooper> mLooper;
88    sp<AHandlerReflector<SimpleSoftOMXComponent> > mHandler;
89
90    OMX_STATETYPE mState;
91    OMX_STATETYPE mTargetState;
92
93    Vector<PortInfo> mPorts;
94
95    bool isSetParameterAllowed(
96            OMX_INDEXTYPE index, const OMX_PTR params) const;
97
98    virtual OMX_ERRORTYPE sendCommand(
99            OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR data);
100
101    virtual OMX_ERRORTYPE getParameter(
102            OMX_INDEXTYPE index, OMX_PTR params);
103
104    virtual OMX_ERRORTYPE setParameter(
105            OMX_INDEXTYPE index, const OMX_PTR params);
106
107    virtual OMX_ERRORTYPE useBuffer(
108            OMX_BUFFERHEADERTYPE **buffer,
109            OMX_U32 portIndex,
110            OMX_PTR appPrivate,
111            OMX_U32 size,
112            OMX_U8 *ptr);
113
114    virtual OMX_ERRORTYPE allocateBuffer(
115            OMX_BUFFERHEADERTYPE **buffer,
116            OMX_U32 portIndex,
117            OMX_PTR appPrivate,
118            OMX_U32 size);
119
120    virtual OMX_ERRORTYPE freeBuffer(
121            OMX_U32 portIndex,
122            OMX_BUFFERHEADERTYPE *buffer);
123
124    virtual OMX_ERRORTYPE emptyThisBuffer(
125            OMX_BUFFERHEADERTYPE *buffer);
126
127    virtual OMX_ERRORTYPE fillThisBuffer(
128            OMX_BUFFERHEADERTYPE *buffer);
129
130    virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state);
131
132    void onSendCommand(OMX_COMMANDTYPE cmd, OMX_U32 param);
133    void onChangeState(OMX_STATETYPE state);
134    void onPortEnable(OMX_U32 portIndex, bool enable);
135    void onPortFlush(OMX_U32 portIndex, bool sendFlushComplete);
136
137    void checkTransitions();
138
139    DISALLOW_EVIL_CONSTRUCTORS(SimpleSoftOMXComponent);
140};
141
142}  // namespace android
143
144#endif  // SIMPLE_SOFT_OMX_COMPONENT_H_
145