NuPlayerDecoderBase.h revision a81c6229638a4db56752dd77a6610e0f0971e877 
1/*
2 * Copyright (C) 2010 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 NUPLAYER_DECODER_BASE_H_
18
19#define NUPLAYER_DECODER_BASE_H_
20
21#include "NuPlayer.h"
22
23#include <media/stagefright/foundation/AHandler.h>
24
25namespace android {
26
27struct ABuffer;
28struct MediaCodec;
29class MediaBuffer;
30class Surface;
31
32struct NuPlayer::DecoderBase : public AHandler {
33    DecoderBase(const sp<AMessage> &notify);
34
35    void configure(const sp<AMessage> &format);
36    void init();
37    void setParameters(const sp<AMessage> &params);
38
39    void setRenderer(const sp<Renderer> &renderer);
40    virtual status_t setVideoSurface(const sp<Surface> &) { return INVALID_OPERATION; }
41
42    status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
43    void signalFlush();
44    void signalResume(bool notifyComplete);
45    void initiateShutdown();
46
47    virtual sp<AMessage> getStats() const {
48        return mStats;
49    }
50
51    enum {
52        kWhatInputDiscontinuity  = 'inDi',
53        kWhatVideoSizeChanged    = 'viSC',
54        kWhatFlushCompleted      = 'flsC',
55        kWhatShutdownCompleted   = 'shDC',
56        kWhatResumeCompleted     = 'resC',
57        kWhatEOS                 = 'eos ',
58        kWhatError               = 'err ',
59    };
60
61protected:
62
63    virtual ~DecoderBase();
64
65    virtual void onMessageReceived(const sp<AMessage> &msg);
66
67    virtual void onConfigure(const sp<AMessage> &format) = 0;
68    virtual void onSetParameters(const sp<AMessage> &params) = 0;
69    virtual void onSetRenderer(const sp<Renderer> &renderer) = 0;
70    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers) = 0;
71    virtual void onResume(bool notifyComplete) = 0;
72    virtual void onFlush() = 0;
73    virtual void onShutdown(bool notifyComplete) = 0;
74
75    void onRequestInputBuffers();
76    virtual bool doRequestBuffers() = 0;
77    virtual void handleError(int32_t err);
78
79    sp<AMessage> mNotify;
80    int32_t mBufferGeneration;
81    sp<AMessage> mStats;
82
83private:
84    enum {
85        kWhatConfigure           = 'conf',
86        kWhatSetParameters       = 'setP',
87        kWhatSetRenderer         = 'setR',
88        kWhatGetInputBuffers     = 'gInB',
89        kWhatRequestInputBuffers = 'reqB',
90        kWhatFlush               = 'flus',
91        kWhatShutdown            = 'shuD',
92    };
93
94    sp<ALooper> mDecoderLooper;
95    bool mRequestInputBuffersPending;
96
97    DISALLOW_EVIL_CONSTRUCTORS(DecoderBase);
98};
99
100}  // namespace android
101
102#endif  // NUPLAYER_DECODER_BASE_H_
103