SoftMPEG4.h revision 269a355679fce6a71523faeefc2ff575abbd1a8e 
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 SOFT_MPEG4_H_
18
19#define SOFT_MPEG4_H_
20
21#include "SimpleSoftOMXComponent.h"
22#include <utils/KeyedVector.h>
23
24struct tagvideoDecControls;
25
26namespace android {
27
28struct SoftMPEG4 : public SimpleSoftOMXComponent {
29    SoftMPEG4(const char *name,
30            const OMX_CALLBACKTYPE *callbacks,
31            OMX_PTR appData,
32            OMX_COMPONENTTYPE **component);
33
34protected:
35    virtual ~SoftMPEG4();
36
37    virtual OMX_ERRORTYPE internalGetParameter(
38            OMX_INDEXTYPE index, OMX_PTR params);
39
40    virtual OMX_ERRORTYPE internalSetParameter(
41            OMX_INDEXTYPE index, const OMX_PTR params);
42
43    virtual OMX_ERRORTYPE getConfig(OMX_INDEXTYPE index, OMX_PTR params);
44
45    virtual void onQueueFilled(OMX_U32 portIndex);
46    virtual void onPortFlushCompleted(OMX_U32 portIndex);
47    virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
48    virtual void onReset();
49
50private:
51    enum {
52        kNumInputBuffers  = 4,
53        kNumOutputBuffers = 2,
54    };
55
56    enum {
57        MODE_MPEG4,
58        MODE_H263,
59
60    } mMode;
61
62    tagvideoDecControls *mHandle;
63
64    size_t mInputBufferCount;
65
66    int32_t mWidth, mHeight;
67    int32_t mCropLeft, mCropTop, mCropRight, mCropBottom;
68
69    bool mSignalledError;
70    bool mInitialized;
71    bool mFramesConfigured;
72
73    int32_t mNumSamplesOutput;
74    int32_t mPvTime;
75    KeyedVector<int32_t, OMX_TICKS> mPvToOmxTimeMap;
76
77    enum {
78        NONE,
79        AWAITING_DISABLED,
80        AWAITING_ENABLED
81    } mOutputPortSettingsChange;
82
83    void initPorts();
84    status_t initDecoder();
85
86    void updatePortDefinitions();
87    bool portSettingsChanged();
88
89    DISALLOW_EVIL_CONSTRUCTORS(SoftMPEG4);
90};
91
92}  // namespace android
93
94#endif  // SOFT_MPEG4_H_
95
96
97