summaryrefslogtreecommitdiffstats
path: root/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
blob: 985ec499676203cc03c4f6960d3cda6983f7e2d6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef NUPLAYER_RENDERER_H_

#define NUPLAYER_RENDERER_H_

#include "NuPlayer.h"

namespace android {

struct ABuffer;
struct VideoFrameScheduler;

struct NuPlayer::Renderer : public AHandler {
    enum Flags {
        FLAG_REAL_TIME = 1,
        FLAG_OFFLOAD_AUDIO = 2,
    };
    Renderer(const sp<MediaPlayerBase::AudioSink> &sink,
             const sp<AMessage> &notify,
             uint32_t flags = 0);

    static size_t AudioSinkCallback(
            MediaPlayerBase::AudioSink *audioSink,
            void *data, size_t size, void *me,
            MediaPlayerBase::AudioSink::cb_event_t event);

    void queueBuffer(
            bool audio,
            const sp<ABuffer> &buffer,
            const sp<AMessage> &notifyConsumed);

    void queueEOS(bool audio, status_t finalResult);

    void flush(bool audio);

    void signalTimeDiscontinuity();

    void signalAudioSinkChanged();

    void signalDisableOffloadAudio();
    void signalEnableOffloadAudio();

    void pause();
    void resume();

    void setVideoFrameRate(float fps);

    // Following setters and getters are protected by mTimeLock.
    status_t getCurrentPosition(int64_t *mediaUs);
    status_t getCurrentPosition(
            int64_t *mediaUs, int64_t nowUs, bool allowPastQueuedVideo = false);
    void setHasMedia(bool audio);
    void setAudioFirstAnchorTime(int64_t mediaUs);
    void setAudioFirstAnchorTimeIfNeeded(int64_t mediaUs);
    void setAnchorTime(
            int64_t mediaUs, int64_t realUs, int64_t numFramesWritten = -1, bool resume = false);
    void setVideoLateByUs(int64_t lateUs);
    int64_t getVideoLateByUs();
    void setPauseStartedTimeRealUs(int64_t realUs);

    bool openAudioSink(
            const sp<AMessage> &format,
            bool offloadOnly,
            bool hasVideo,
            uint32_t flags);
    void closeAudioSink();

    enum {
        kWhatEOS                 = 'eos ',
        kWhatFlushComplete       = 'fluC',
        kWhatPosition            = 'posi',
        kWhatVideoRenderingStart = 'vdrd',
        kWhatMediaRenderingStart = 'mdrd',
        kWhatAudioOffloadTearDown = 'aOTD',
        kWhatAudioOffloadPauseTimeout = 'aOPT',
    };

    enum AudioOffloadTearDownReason {
        kDueToError = 0,
        kDueToTimeout,
    };

protected:
    virtual ~Renderer();

    virtual void onMessageReceived(const sp<AMessage> &msg);

private:
    enum {
        kWhatDrainAudioQueue     = 'draA',
        kWhatDrainVideoQueue     = 'draV',
        kWhatPostDrainVideoQueue = 'pDVQ',
        kWhatQueueBuffer         = 'queB',
        kWhatQueueEOS            = 'qEOS',
        kWhatFlush               = 'flus',
        kWhatAudioSinkChanged    = 'auSC',
        kWhatPause               = 'paus',
        kWhatResume              = 'resm',
        kWhatOpenAudioSink       = 'opnA',
        kWhatCloseAudioSink      = 'clsA',
        kWhatStopAudioSink       = 'stpA',
        kWhatDisableOffloadAudio = 'noOA',
        kWhatEnableOffloadAudio  = 'enOA',
        kWhatSetVideoFrameRate   = 'sVFR',
    };

    struct QueueEntry {
        sp<ABuffer> mBuffer;
        sp<AMessage> mNotifyConsumed;
        size_t mOffset;
        status_t mFinalResult;
        int32_t mBufferOrdinal;
    };

    static const int64_t kMinPositionUpdateDelayUs;

    sp<MediaPlayerBase::AudioSink> mAudioSink;
    sp<AMessage> mNotify;
    Mutex mLock;
    uint32_t mFlags;
    List<QueueEntry> mAudioQueue;
    List<QueueEntry> mVideoQueue;
    uint32_t mNumFramesWritten;
    sp<VideoFrameScheduler> mVideoScheduler;

    bool mDrainAudioQueuePending;
    bool mDrainVideoQueuePending;
    int32_t mAudioQueueGeneration;
    int32_t mVideoQueueGeneration;

    Mutex mTimeLock;
    // |mTimeLock| protects the following 7 member vars that are related to time.
    // Note: those members are only written on Renderer thread, so reading on Renderer thread
    // doesn't need to be protected. Otherwise accessing those members must be protected by
    // |mTimeLock|.
    // TODO: move those members to a seperated media clock class.
    int64_t mAudioFirstAnchorTimeMediaUs;
    int64_t mAnchorTimeMediaUs;
    int64_t mAnchorTimeRealUs;
    int64_t mAnchorNumFramesWritten;
    int64_t mAnchorMaxMediaUs;
    int64_t mVideoLateByUs;
    bool mHasAudio;
    bool mHasVideo;
    int64_t mPauseStartedTimeRealUs;

    Mutex mFlushLock;  // protects the following 2 member vars.
    bool mFlushingAudio;
    bool mFlushingVideo;

    bool mSyncQueues;

    bool mPaused;
    bool mVideoSampleReceived;
    bool mVideoRenderingStarted;
    int32_t mVideoRenderingStartGeneration;
    int32_t mAudioRenderingStartGeneration;

    int64_t mLastPositionUpdateUs;

    int32_t mAudioOffloadPauseTimeoutGeneration;
    bool mAudioOffloadTornDown;
    audio_offload_info_t mCurrentOffloadInfo;

    int32_t mTotalBuffersQueued;
    int32_t mLastAudioBufferDrained;


    size_t fillAudioBuffer(void *buffer, size_t size);

    bool onDrainAudioQueue();
    int64_t getPendingAudioPlayoutDurationUs(int64_t nowUs);
    int64_t getPlayedOutAudioDurationUs(int64_t nowUs);
    void postDrainAudioQueue_l(int64_t delayUs = 0);

    void onNewAudioMediaTime(int64_t mediaTimeUs);
    int64_t getRealTimeUs(int64_t mediaTimeUs, int64_t nowUs);

    void onDrainVideoQueue();
    void postDrainVideoQueue();

    void prepareForMediaRenderingStart();
    void notifyIfMediaRenderingStarted();

    void onQueueBuffer(const sp<AMessage> &msg);
    void onQueueEOS(const sp<AMessage> &msg);
    void onFlush(const sp<AMessage> &msg);
    void onAudioSinkChanged();
    void onDisableOffloadAudio();
    void onEnableOffloadAudio();
    void onPause();
    void onResume();
    void onSetVideoFrameRate(float fps);
    void onAudioOffloadTearDown(AudioOffloadTearDownReason reason);
    bool onOpenAudioSink(
            const sp<AMessage> &format,
            bool offloadOnly,
            bool hasVideo,
            uint32_t flags);
    void onCloseAudioSink();

    void notifyEOS(bool audio, status_t finalResult, int64_t delayUs = 0);
    void notifyFlushComplete(bool audio);
    void notifyPosition();
    void notifyVideoLateBy(int64_t lateByUs);
    void notifyVideoRenderingStart();
    void notifyAudioOffloadTearDown();

    void flushQueue(List<QueueEntry> *queue);
    bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg);
    void syncQueuesDone_l();

    bool offloadingAudio() const { return (mFlags & FLAG_OFFLOAD_AUDIO) != 0; }

    void startAudioOffloadPauseTimeout();
    void cancelAudioOffloadPauseTimeout();

    DISALLOW_EVIL_CONSTRUCTORS(Renderer);
};

}  // namespace android

#endif  // NUPLAYER_RENDERER_H_