NuPlayerRenderer.h revision 43c3e6ce02215ca99d506458f596cb1211639f29 
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_RENDERER_H_
18
19#define NUPLAYER_RENDERER_H_
20
21#include "NuPlayer.h"
22
23namespace android {
24
25struct ABuffer;
26
27struct NuPlayer::Renderer : public AHandler {
28    Renderer(const sp<MediaPlayerBase::AudioSink> &sink,
29             const sp<AMessage> &notify);
30
31    void queueBuffer(
32            bool audio,
33            const sp<ABuffer> &buffer,
34            const sp<AMessage> &notifyConsumed);
35
36    void queueEOS(bool audio, status_t finalResult);
37
38    void flush(bool audio);
39
40    void signalTimeDiscontinuity();
41
42    void signalAudioSinkChanged();
43
44    enum {
45        kWhatEOS,
46        kWhatFlushComplete,
47        kWhatPosition,
48    };
49
50protected:
51    virtual ~Renderer();
52
53    virtual void onMessageReceived(const sp<AMessage> &msg);
54
55private:
56    enum {
57        kWhatDrainAudioQueue,
58        kWhatDrainVideoQueue,
59        kWhatQueueBuffer,
60        kWhatQueueEOS,
61        kWhatFlush,
62        kWhatAudioSinkChanged,
63    };
64
65    struct QueueEntry {
66        sp<ABuffer> mBuffer;
67        sp<AMessage> mNotifyConsumed;
68        size_t mOffset;
69        status_t mFinalResult;
70    };
71
72    sp<MediaPlayerBase::AudioSink> mAudioSink;
73    sp<AMessage> mNotify;
74    List<QueueEntry> mAudioQueue;
75    List<QueueEntry> mVideoQueue;
76    uint32_t mNumFramesWritten;
77
78    bool mDrainAudioQueuePending;
79    bool mDrainVideoQueuePending;
80    int32_t mAudioQueueGeneration;
81    int32_t mVideoQueueGeneration;
82
83    int64_t mAnchorTimeMediaUs;
84    int64_t mAnchorTimeRealUs;
85
86    Mutex mFlushLock;  // protects the following 2 member vars.
87    bool mFlushingAudio;
88    bool mFlushingVideo;
89
90    bool mHasAudio;
91    bool mHasVideo;
92    bool mSyncQueues;
93
94    void onDrainAudioQueue();
95    void postDrainAudioQueue();
96
97    void onDrainVideoQueue();
98    void postDrainVideoQueue();
99
100    void onQueueBuffer(const sp<AMessage> &msg);
101    void onQueueEOS(const sp<AMessage> &msg);
102    void onFlush(const sp<AMessage> &msg);
103    void onAudioSinkChanged();
104
105    void notifyEOS(bool audio);
106    void notifyFlushComplete(bool audio);
107    void notifyPosition();
108
109    void flushQueue(List<QueueEntry> *queue);
110    bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg);
111    void syncQueuesDone();
112
113    DISALLOW_EVIL_CONSTRUCTORS(Renderer);
114};
115
116}  // namespace android
117
118#endif  // NUPLAYER_RENDERER_H_
119