NuPlayerDecoderBase.h revision 8db8813d39e3c8b5fbd580dfc3062830744afd63 
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;
30
31struct NuPlayer::DecoderBase : public AHandler {
32    DecoderBase(const sp<AMessage> &notify);
33
34    void configure(const sp<AMessage> &format);
35    void init();
36    void setParameters(const sp<AMessage> &params);
37
38    void setRenderer(const sp<Renderer> &renderer);
39
40    status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
41    void signalFlush();
42    void signalResume(bool notifyComplete);
43    void initiateShutdown();
44
45    virtual void getStats(
46            int64_t *mNumFramesTotal,
47            int64_t *mNumFramesDropped) const = 0;
48
49    enum {
50        kWhatInputDiscontinuity  = 'inDi',
51        kWhatVideoSizeChanged    = 'viSC',
52        kWhatFlushCompleted      = 'flsC',
53        kWhatShutdownCompleted   = 'shDC',
54        kWhatResumeCompleted     = 'resC',
55        kWhatEOS                 = 'eos ',
56        kWhatError               = 'err ',
57    };
58
59protected:
60
61    virtual ~DecoderBase();
62
63    virtual void onMessageReceived(const sp<AMessage> &msg);
64
65    virtual void onConfigure(const sp<AMessage> &format) = 0;
66    virtual void onSetParameters(const sp<AMessage> &params) = 0;
67    virtual void onSetRenderer(const sp<Renderer> &renderer) = 0;
68    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers) = 0;
69    virtual void onResume(bool notifyComplete) = 0;
70    virtual void onFlush() = 0;
71    virtual void onShutdown(bool notifyComplete) = 0;
72
73    void onRequestInputBuffers();
74    virtual bool doRequestBuffers() = 0;
75    virtual void handleError(int32_t err);
76
77    sp<AMessage> mNotify;
78    int32_t mBufferGeneration;
79
80private:
81    enum {
82        kWhatConfigure           = 'conf',
83        kWhatSetParameters       = 'setP',
84        kWhatSetRenderer         = 'setR',
85        kWhatGetInputBuffers     = 'gInB',
86        kWhatRequestInputBuffers = 'reqB',
87        kWhatFlush               = 'flus',
88        kWhatShutdown            = 'shuD',
89    };
90
91    sp<ALooper> mDecoderLooper;
92    bool mRequestInputBuffersPending;
93
94    DISALLOW_EVIL_CONSTRUCTORS(DecoderBase);
95};
96
97}  // namespace android
98
99#endif  // NUPLAYER_DECODER_BASE_H_
100