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_AVC_H_
18
19#define SOFT_AVC_H_
20
21#include "SoftVideoDecoderOMXComponent.h"
22#include <utils/KeyedVector.h>
23
24#include "H264SwDecApi.h"
25#include "basetype.h"
26
27namespace android {
28
29struct SoftAVC : public SoftVideoDecoderOMXComponent {
30    SoftAVC(const char *name,
31            const OMX_CALLBACKTYPE *callbacks,
32            OMX_PTR appData,
33            OMX_COMPONENTTYPE **component);
34
35protected:
36    virtual ~SoftAVC();
37
38    virtual void onQueueFilled(OMX_U32 portIndex);
39    virtual void onPortFlushCompleted(OMX_U32 portIndex);
40    virtual void onReset();
41
42private:
43    enum {
44        kNumInputBuffers  = 8,
45        kNumOutputBuffers = 2,
46    };
47
48    enum EOSStatus {
49        INPUT_DATA_AVAILABLE,
50        INPUT_EOS_SEEN,
51        OUTPUT_FRAMES_FLUSHED,
52    };
53
54    void *mHandle;
55
56    size_t mInputBufferCount;
57
58    uint8_t *mFirstPicture;
59    int32_t mFirstPictureId;
60
61    int32_t mPicId;  // Which output picture is for which input buffer?
62
63    // OMX_BUFFERHEADERTYPE may be overkill, but it is convenient
64    // for tracking the following fields: nFlags, nTimeStamp, etc.
65    KeyedVector<int32_t, OMX_BUFFERHEADERTYPE *> mPicToHeaderMap;
66    bool mHeadersDecoded;
67
68    EOSStatus mEOSStatus;
69
70    bool mSignalledError;
71
72    status_t initDecoder();
73    void drainAllOutputBuffers(bool eos);
74    bool drainOneOutputBuffer(int32_t picId, uint8_t *data);
75    void saveFirstOutputBuffer(int32_t pidId, uint8_t *data);
76    CropSettingsMode handleCropParams(const H264SwDecInfo& decInfo);
77
78    DISALLOW_EVIL_CONSTRUCTORS(SoftAVC);
79};
80
81}  // namespace android
82
83#endif  // SOFT_AVC_H_
84
85