NuPlayer.h revision 457ec421a62995845698ada8d84d6c9de8d222dc 
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 setDataSource(const sp<IStreamSource> &source);
39
40    void setDataSource(
41            const char *url, const KeyedVector<String8, String8> *headers);
42
43    void setDataSource(int fd, int64_t offset, int64_t length);
44
45    void setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture);
46    void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
47    void start();
48
49    void pause();
50    void resume();
51
52    // Will notify the driver through "notifyResetComplete" once finished.
53    void resetAsync();
54
55    // Will notify the driver through "notifySeekComplete" once finished.
56    void seekToAsync(int64_t seekTimeUs);
57
58    status_t setVideoScalingMode(int32_t mode);
59
60protected:
61    virtual ~NuPlayer();
62
63    virtual void onMessageReceived(const sp<AMessage> &msg);
64
65public:
66    struct NuPlayerStreamListener;
67    struct Source;
68
69private:
70    struct Decoder;
71    struct GenericSource;
72    struct HTTPLiveSource;
73    struct Renderer;
74    struct RTSPSource;
75    struct StreamingSource;
76    struct Action;
77    struct SeekAction;
78    struct SimpleAction;
79
80    enum {
81        kWhatSetDataSource              = '=DaS',
82        kWhatSetVideoNativeWindow       = '=NaW',
83        kWhatSetAudioSink               = '=AuS',
84        kWhatMoreDataQueued             = 'more',
85        kWhatStart                      = 'strt',
86        kWhatScanSources                = 'scan',
87        kWhatVideoNotify                = 'vidN',
88        kWhatAudioNotify                = 'audN',
89        kWhatRendererNotify             = 'renN',
90        kWhatReset                      = 'rset',
91        kWhatSeek                       = 'seek',
92        kWhatPause                      = 'paus',
93        kWhatResume                     = 'rsme',
94        kWhatPollDuration               = 'polD',
95    };
96
97    wp<NuPlayerDriver> mDriver;
98    bool mUIDValid;
99    uid_t mUID;
100    sp<Source> mSource;
101    sp<NativeWindowWrapper> mNativeWindow;
102    sp<MediaPlayerBase::AudioSink> mAudioSink;
103    sp<Decoder> mVideoDecoder;
104    bool mVideoIsAVC;
105    sp<Decoder> mAudioDecoder;
106    sp<Renderer> mRenderer;
107
108    List<sp<Action> > mDeferredActions;
109
110    bool mAudioEOS;
111    bool mVideoEOS;
112
113    bool mScanSourcesPending;
114    int32_t mScanSourcesGeneration;
115
116    int32_t mPollDurationGeneration;
117
118    enum FlushStatus {
119        NONE,
120        AWAITING_DISCONTINUITY,
121        FLUSHING_DECODER,
122        FLUSHING_DECODER_SHUTDOWN,
123        SHUTTING_DOWN_DECODER,
124        FLUSHED,
125        SHUT_DOWN,
126    };
127
128    // Once the current flush is complete this indicates whether the
129    // notion of time has changed.
130    bool mTimeDiscontinuityPending;
131
132    FlushStatus mFlushingAudio;
133    FlushStatus mFlushingVideo;
134
135    int64_t mSkipRenderingAudioUntilMediaTimeUs;
136    int64_t mSkipRenderingVideoUntilMediaTimeUs;
137
138    int64_t mVideoLateByUs;
139    int64_t mNumFramesTotal, mNumFramesDropped;
140
141    int32_t mVideoScalingMode;
142
143    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
144
145    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
146    void renderBuffer(bool audio, const sp<AMessage> &msg);
147
148    void notifyListener(int msg, int ext1, int ext2);
149
150    void finishFlushIfPossible();
151
152    void flushDecoder(bool audio, bool needShutdown);
153
154    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
155
156    void postScanSources();
157
158    void schedulePollDuration();
159    void cancelPollDuration();
160
161    void processDeferredActions();
162
163    void performSeek(int64_t seekTimeUs);
164    void performDecoderFlush();
165    void performDecoderShutdown();
166    void performReset();
167    void performScanSources();
168
169    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
170};
171
172}  // namespace android
173
174#endif  // NU_PLAYER_H_
175