NuPlayerRenderer.h revision 5bc087c573c70c84c6a39946457590b42d392a33 
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    };
48
49protected:
50    virtual ~Renderer();
51
52    virtual void onMessageReceived(const sp<AMessage> &msg);
53
54private:
55    enum {
56        kWhatDrainAudioQueue,
57        kWhatDrainVideoQueue,
58        kWhatQueueBuffer,
59        kWhatQueueEOS,
60        kWhatFlush,
61        kWhatAudioSinkChanged,
62    };
63
64    struct QueueEntry {
65        sp<ABuffer> mBuffer;
66        sp<AMessage> mNotifyConsumed;
67        size_t mOffset;
68        status_t mFinalResult;
69    };
70
71    sp<MediaPlayerBase::AudioSink> mAudioSink;
72    sp<AMessage> mNotify;
73    List<QueueEntry> mAudioQueue;
74    List<QueueEntry> mVideoQueue;
75    uint32_t mNumFramesWritten;
76
77    bool mDrainAudioQueuePending;
78    bool mDrainVideoQueuePending;
79    int32_t mAudioQueueGeneration;
80    int32_t mVideoQueueGeneration;
81
82    int64_t mAnchorTimeMediaUs;
83    int64_t mAnchorTimeRealUs;
84
85    Mutex mFlushLock;  // protects the following 2 member vars.
86    bool mFlushingAudio;
87    bool mFlushingVideo;
88
89    bool mHasAudio;
90    bool mHasVideo;
91    bool mSyncQueues;
92
93    void onDrainAudioQueue();
94    void postDrainAudioQueue();
95
96    void onDrainVideoQueue();
97    void postDrainVideoQueue();
98
99    void onQueueBuffer(const sp<AMessage> &msg);
100    void onQueueEOS(const sp<AMessage> &msg);
101    void onFlush(const sp<AMessage> &msg);
102    void onAudioSinkChanged();
103
104    void notifyEOS(bool audio);
105    void notifyFlushComplete(bool audio);
106
107    void flushQueue(List<QueueEntry> *queue);
108    bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg);
109    void syncQueuesDone();
110
111    DISALLOW_EVIL_CONSTRUCTORS(Renderer);
112};
113
114}  // namespace android
115
116#endif  // NUPLAYER_RENDERER_H_
117