SoftVPX.h revision 2d2a2967ce29281816b9ddb9434b3c0084e4ce52 
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_VPX_H_
18
19#define SOFT_VPX_H_
20
21#include <media/stagefright/omx/SoftVideoDecoderOMXComponent.h>
22
23#include "vpx/vpx_decoder.h"
24#include "vpx/vpx_codec.h"
25#include "vpx/vp8dx.h"
26
27namespace android {
28
29struct SoftVPX : public SoftVideoDecoderOMXComponent {
30    SoftVPX(const char *name,
31            const char *componentRole,
32            OMX_VIDEO_CODINGTYPE codingType,
33            const OMX_CALLBACKTYPE *callbacks,
34            OMX_PTR appData,
35            OMX_COMPONENTTYPE **component);
36
37protected:
38    virtual ~SoftVPX();
39
40    virtual void onQueueFilled(OMX_U32 portIndex);
41    virtual void onPortFlushCompleted(OMX_U32 portIndex);
42    virtual void onReset();
43    virtual bool supportDescribeHdrStaticInfo();
44
45private:
46    enum {
47        kNumBuffers = 4
48    };
49
50    enum {
51        MODE_VP8,
52        MODE_VP9
53    } mMode;
54
55    enum {
56        INPUT_DATA_AVAILABLE,  // VPX component is ready to decode data.
57        INPUT_EOS_SEEN,        // VPX component saw EOS and is flushing On2 decoder.
58        OUTPUT_FRAMES_FLUSHED  // VPX component finished flushing On2 decoder.
59    } mEOSStatus;
60
61    void *mCtx;
62    bool mFrameParallelMode;  // Frame parallel is only supported by VP9 decoder.
63    OMX_TICKS mTimeStamps[kNumBuffers];
64    uint8_t mTimeStampIdx;
65    vpx_image_t *mImg;
66
67    status_t initDecoder();
68    status_t destroyDecoder();
69    bool outputBuffers(bool flushDecoder, bool display, bool eos, bool *portWillReset);
70    bool outputBufferSafe(OMX_BUFFERHEADERTYPE *outHeader);
71
72    DISALLOW_EVIL_CONSTRUCTORS(SoftVPX);
73};
74
75}  // namespace android
76
77#endif  // SOFT_VPX_H_
78