SoftMPEG4.h revision bbba88cb1bdc34705d1477208990a06904c022e7 
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
23struct tagvideoDecControls;
24
25namespace android {
26
27struct SoftMPEG4 : public SimpleSoftOMXComponent {
28    SoftMPEG4(const char *name,
29            const OMX_CALLBACKTYPE *callbacks,
30            OMX_PTR appData,
31            OMX_COMPONENTTYPE **component);
32
33protected:
34    virtual ~SoftMPEG4();
35
36    virtual OMX_ERRORTYPE internalGetParameter(
37            OMX_INDEXTYPE index, OMX_PTR params);
38
39    virtual OMX_ERRORTYPE internalSetParameter(
40            OMX_INDEXTYPE index, const OMX_PTR params);
41
42    virtual OMX_ERRORTYPE getConfig(OMX_INDEXTYPE index, OMX_PTR params);
43
44    virtual void onQueueFilled(OMX_U32 portIndex);
45    virtual void onPortFlushCompleted(OMX_U32 portIndex);
46    virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
47
48private:
49    enum {
50        kNumInputBuffers  = 4,
51        kNumOutputBuffers = 2,
52    };
53
54    enum {
55        MODE_MPEG4,
56        MODE_H263,
57
58    } mMode;
59
60    tagvideoDecControls *mHandle;
61
62    size_t mInputBufferCount;
63
64    int32_t mWidth, mHeight;
65    int32_t mCropLeft, mCropTop, mCropRight, mCropBottom;
66
67    bool mSignalledError;
68    bool mInitialized;
69    bool mFramesConfigured;
70
71    int32_t mNumSamplesOutput;
72
73    enum {
74        NONE,
75        AWAITING_DISABLED,
76        AWAITING_ENABLED
77    } mOutputPortSettingsChange;
78
79    void initPorts();
80    status_t initDecoder();
81
82    void updatePortDefinitions();
83    bool portSettingsChanged();
84
85    DISALLOW_EVIL_CONSTRUCTORS(SoftMPEG4);
86};
87
88}  // namespace android
89
90#endif  // SOFT_MPEG4_H_
91
92
93