SoftMPEG4.h revision d94e716af0e49d775f0c0c4f36dd2c136ba5f2b2 
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    virtual void onReset();
48
49private:
50    enum {
51        kNumInputBuffers  = 4,
52        kNumOutputBuffers = 2,
53    };
54
55    enum {
56        MODE_MPEG4,
57        MODE_H263,
58
59    } mMode;
60
61    tagvideoDecControls *mHandle;
62
63    size_t mInputBufferCount;
64
65    int32_t mWidth, mHeight;
66    int32_t mCropLeft, mCropTop, mCropRight, mCropBottom;
67
68    bool mSignalledError;
69    bool mInitialized;
70    bool mFramesConfigured;
71
72    int32_t mNumSamplesOutput;
73
74    enum {
75        NONE,
76        AWAITING_DISABLED,
77        AWAITING_ENABLED
78    } mOutputPortSettingsChange;
79
80    void initPorts();
81    status_t initDecoder();
82
83    void updatePortDefinitions();
84    bool portSettingsChanged();
85
86    DISALLOW_EVIL_CONSTRUCTORS(SoftMPEG4);
87};
88
89}  // namespace android
90
91#endif  // SOFT_MPEG4_H_
92
93
94