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 MediaCodecBuffer;
31class Surface;
32
33struct NuPlayer::DecoderBase : public AHandler {
34    explicit DecoderBase(const sp<AMessage> &notify);
35
36    void configure(const sp<AMessage> &format);
37    void init();
38    void setParameters(const sp<AMessage> &params);
39
40    // Synchronous call to ensure decoder will not request or send out data.
41    void pause();
42
43    void setRenderer(const sp<Renderer> &renderer);
44    virtual status_t setVideoSurface(const sp<Surface> &) { return INVALID_OPERATION; }
45
46    void signalFlush();
47    void signalResume(bool notifyComplete);
48    void initiateShutdown();
49
50    virtual sp<AMessage> getStats() const {
51        return mStats;
52    }
53
54    virtual status_t releaseCrypto() {
55        return INVALID_OPERATION;
56    }
57
58    enum {
59        kWhatInputDiscontinuity  = 'inDi',
60        kWhatVideoSizeChanged    = 'viSC',
61        kWhatFlushCompleted      = 'flsC',
62        kWhatShutdownCompleted   = 'shDC',
63        kWhatResumeCompleted     = 'resC',
64        kWhatEOS                 = 'eos ',
65        kWhatError               = 'err ',
66    };
67
68protected:
69
70    virtual ~DecoderBase();
71
72    void stopLooper();
73
74    virtual void onMessageReceived(const sp<AMessage> &msg);
75
76    virtual void onConfigure(const sp<AMessage> &format) = 0;
77    virtual void onSetParameters(const sp<AMessage> &params) = 0;
78    virtual void onSetRenderer(const sp<Renderer> &renderer) = 0;
79    virtual void onResume(bool notifyComplete) = 0;
80    virtual void onFlush() = 0;
81    virtual void onShutdown(bool notifyComplete) = 0;
82
83    void onRequestInputBuffers();
84    virtual bool doRequestBuffers() = 0;
85    virtual void handleError(int32_t err);
86
87    sp<AMessage> mNotify;
88    int32_t mBufferGeneration;
89    bool mPaused;
90    sp<AMessage> mStats;
91
92private:
93    enum {
94        kWhatConfigure           = 'conf',
95        kWhatSetParameters       = 'setP',
96        kWhatSetRenderer         = 'setR',
97        kWhatPause               = 'paus',
98        kWhatRequestInputBuffers = 'reqB',
99        kWhatFlush               = 'flus',
100        kWhatShutdown            = 'shuD',
101    };
102
103    sp<ALooper> mDecoderLooper;
104    bool mRequestInputBuffersPending;
105
106    DISALLOW_EVIL_CONSTRUCTORS(DecoderBase);
107};
108
109}  // namespace android
110
111#endif  // NUPLAYER_DECODER_BASE_H_
112