NuPlayer.h revision 9575c96b6e418914e2ffc6741ecc8d71e3968dbe 
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 NU_PLAYER_H_
18
19#define NU_PLAYER_H_
20
21#include <media/MediaPlayerInterface.h>
22#include <media/stagefright/foundation/AHandler.h>
23#include <media/stagefright/NativeWindowWrapper.h>
24
25namespace android {
26
27struct ACodec;
28struct MetaData;
29struct NuPlayerDriver;
30
31struct NuPlayer : public AHandler {
32    NuPlayer();
33
34    void setUID(uid_t uid);
35
36    void setDriver(const wp<NuPlayerDriver> &driver);
37
38    void setDataSourceAsync(const sp<IStreamSource> &source);
39
40    void setDataSourceAsync(
41            const char *url, const KeyedVector<String8, String8> *headers);
42
43    void setDataSourceAsync(int fd, int64_t offset, int64_t length);
44
45    void prepareAsync();
46
47    void setVideoSurfaceTextureAsync(
48            const sp<IGraphicBufferProducer> &bufferProducer);
49
50    void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
51    void start();
52
53    void pause();
54    void resume();
55
56    // Will notify the driver through "notifyResetComplete" once finished.
57    void resetAsync();
58
59    // Will notify the driver through "notifySeekComplete" once finished.
60    void seekToAsync(int64_t seekTimeUs);
61
62    status_t setVideoScalingMode(int32_t mode);
63
64protected:
65    virtual ~NuPlayer();
66
67    virtual void onMessageReceived(const sp<AMessage> &msg);
68
69public:
70    struct NuPlayerStreamListener;
71    struct Source;
72
73private:
74    struct Decoder;
75    struct GenericSource;
76    struct HTTPLiveSource;
77    struct Renderer;
78    struct RTSPSource;
79    struct StreamingSource;
80    struct Action;
81    struct SeekAction;
82    struct SetSurfaceAction;
83    struct SimpleAction;
84
85    enum {
86        kWhatSetDataSource              = '=DaS',
87        kWhatPrepare                    = 'prep',
88        kWhatSetVideoNativeWindow       = '=NaW',
89        kWhatSetAudioSink               = '=AuS',
90        kWhatMoreDataQueued             = 'more',
91        kWhatStart                      = 'strt',
92        kWhatScanSources                = 'scan',
93        kWhatVideoNotify                = 'vidN',
94        kWhatAudioNotify                = 'audN',
95        kWhatRendererNotify             = 'renN',
96        kWhatReset                      = 'rset',
97        kWhatSeek                       = 'seek',
98        kWhatPause                      = 'paus',
99        kWhatResume                     = 'rsme',
100        kWhatPollDuration               = 'polD',
101        kWhatSourceNotify               = 'srcN',
102    };
103
104    wp<NuPlayerDriver> mDriver;
105    bool mUIDValid;
106    uid_t mUID;
107    sp<Source> mSource;
108    uint32_t mSourceFlags;
109    sp<NativeWindowWrapper> mNativeWindow;
110    sp<MediaPlayerBase::AudioSink> mAudioSink;
111    sp<Decoder> mVideoDecoder;
112    bool mVideoIsAVC;
113    sp<Decoder> mAudioDecoder;
114    sp<Renderer> mRenderer;
115
116    List<sp<Action> > mDeferredActions;
117
118    bool mAudioEOS;
119    bool mVideoEOS;
120
121    bool mScanSourcesPending;
122    int32_t mScanSourcesGeneration;
123
124    int32_t mPollDurationGeneration;
125
126    enum FlushStatus {
127        NONE,
128        AWAITING_DISCONTINUITY,
129        FLUSHING_DECODER,
130        FLUSHING_DECODER_SHUTDOWN,
131        SHUTTING_DOWN_DECODER,
132        FLUSHED,
133        SHUT_DOWN,
134    };
135
136    // Once the current flush is complete this indicates whether the
137    // notion of time has changed.
138    bool mTimeDiscontinuityPending;
139
140    FlushStatus mFlushingAudio;
141    FlushStatus mFlushingVideo;
142
143    int64_t mSkipRenderingAudioUntilMediaTimeUs;
144    int64_t mSkipRenderingVideoUntilMediaTimeUs;
145
146    int64_t mVideoLateByUs;
147    int64_t mNumFramesTotal, mNumFramesDropped;
148
149    int32_t mVideoScalingMode;
150
151    bool mStarted;
152
153    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
154
155    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
156    void renderBuffer(bool audio, const sp<AMessage> &msg);
157
158    void notifyListener(int msg, int ext1, int ext2);
159
160    void finishFlushIfPossible();
161
162    void flushDecoder(bool audio, bool needShutdown);
163
164    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
165
166    void postScanSources();
167
168    void schedulePollDuration();
169    void cancelPollDuration();
170
171    void processDeferredActions();
172
173    void performSeek(int64_t seekTimeUs);
174    void performDecoderFlush();
175    void performDecoderShutdown();
176    void performReset();
177    void performScanSources();
178    void performSetSurface(const sp<NativeWindowWrapper> &wrapper);
179
180    void onSourceNotify(const sp<AMessage> &msg);
181
182    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
183};
184
185}  // namespace android
186
187#endif  // NU_PLAYER_H_
188