NuPlayerRenderer.h revision 3831a066bcf1019864a94d2bc7b4c9241efc5c22 
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 NuPlayer::Renderer : public AHandler {
26    Renderer(const sp<MediaPlayerBase::AudioSink> &sink,
27             const sp<AMessage> &notify);
28
29    void queueBuffer(
30            bool audio,
31            const sp<ABuffer> &buffer,
32            const sp<AMessage> &notifyConsumed);
33
34    void queueEOS(bool audio, status_t finalResult);
35
36    void flush(bool audio);
37
38    void signalTimeDiscontinuity();
39
40    void signalAudioSinkChanged();
41
42    enum {
43        kWhatEOS,
44        kWhatFlushComplete,
45    };
46
47protected:
48    virtual ~Renderer();
49
50    virtual void onMessageReceived(const sp<AMessage> &msg);
51
52private:
53    enum {
54        kWhatDrainAudioQueue,
55        kWhatDrainVideoQueue,
56        kWhatQueueBuffer,
57        kWhatQueueEOS,
58        kWhatFlush,
59        kWhatAudioSinkChanged,
60    };
61
62    struct QueueEntry {
63        sp<ABuffer> mBuffer;
64        sp<AMessage> mNotifyConsumed;
65        size_t mOffset;
66        status_t mFinalResult;
67    };
68
69    sp<MediaPlayerBase::AudioSink> mAudioSink;
70    sp<AMessage> mNotify;
71    List<QueueEntry> mAudioQueue;
72    List<QueueEntry> mVideoQueue;
73    uint32_t mNumFramesWritten;
74
75    bool mDrainAudioQueuePending;
76    bool mDrainVideoQueuePending;
77    int32_t mAudioQueueGeneration;
78    int32_t mVideoQueueGeneration;
79
80    int64_t mAnchorTimeMediaUs;
81    int64_t mAnchorTimeRealUs;
82
83    Mutex mFlushLock;  // protects the following 2 member vars.
84    bool mFlushingAudio;
85    bool mFlushingVideo;
86
87    bool mHasAudio;
88    bool mHasVideo;
89    bool mSyncQueues;
90
91    void onDrainAudioQueue();
92    void postDrainAudioQueue();
93
94    void onDrainVideoQueue();
95    void postDrainVideoQueue();
96
97    void onQueueBuffer(const sp<AMessage> &msg);
98    void onQueueEOS(const sp<AMessage> &msg);
99    void onFlush(const sp<AMessage> &msg);
100    void onAudioSinkChanged();
101
102    void notifyEOS(bool audio);
103    void notifyFlushComplete(bool audio);
104
105    void flushQueue(List<QueueEntry> *queue);
106    bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg);
107    void syncQueuesDone();
108
109    DISALLOW_EVIL_CONSTRUCTORS(Renderer);
110};
111
112}  // namespace android
113
114#endif  // NUPLAYER_RENDERER_H_
115