NuPlayer.h revision 1cd139824b2e6832f239cd27d8962d3239053c02 
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 MetaData;
28struct NuPlayerDriver;
29
30struct NuPlayer : public AHandler {
31    NuPlayer();
32
33    void setUID(uid_t uid);
34
35    void setDriver(const wp<NuPlayerDriver> &driver);
36
37    void setDataSourceAsync(const sp<IStreamSource> &source);
38
39    void setDataSourceAsync(
40            const sp<IMediaHTTPService> &httpService,
41            const char *url,
42            const KeyedVector<String8, String8> *headers);
43
44    void setDataSourceAsync(int fd, int64_t offset, int64_t length);
45
46    void prepareAsync();
47
48    void setVideoSurfaceTextureAsync(
49            const sp<IGraphicBufferProducer> &bufferProducer);
50
51    void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
52    void start();
53
54    void pause();
55    void resume();
56
57    // Will notify the driver through "notifyResetComplete" once finished.
58    void resetAsync();
59
60    // Will notify the driver through "notifySeekComplete" once finished.
61    void seekToAsync(int64_t seekTimeUs);
62
63    status_t setVideoScalingMode(int32_t mode);
64    status_t getTrackInfo(Parcel* reply) const;
65    status_t selectTrack(size_t trackIndex, bool select);
66
67protected:
68    virtual ~NuPlayer();
69
70    virtual void onMessageReceived(const sp<AMessage> &msg);
71
72public:
73    struct NuPlayerStreamListener;
74    struct Source;
75
76private:
77    struct Decoder;
78    struct GenericSource;
79    struct HTTPLiveSource;
80    struct Renderer;
81    struct RTSPSource;
82    struct StreamingSource;
83    struct Action;
84    struct SeekAction;
85    struct SetSurfaceAction;
86    struct ShutdownDecoderAction;
87    struct PostMessageAction;
88    struct SimpleAction;
89
90    enum {
91        kWhatSetDataSource              = '=DaS',
92        kWhatPrepare                    = 'prep',
93        kWhatSetVideoNativeWindow       = '=NaW',
94        kWhatSetAudioSink               = '=AuS',
95        kWhatMoreDataQueued             = 'more',
96        kWhatStart                      = 'strt',
97        kWhatScanSources                = 'scan',
98        kWhatVideoNotify                = 'vidN',
99        kWhatAudioNotify                = 'audN',
100        kWhatRendererNotify             = 'renN',
101        kWhatReset                      = 'rset',
102        kWhatSeek                       = 'seek',
103        kWhatPause                      = 'paus',
104        kWhatResume                     = 'rsme',
105        kWhatPollDuration               = 'polD',
106        kWhatSourceNotify               = 'srcN',
107        kWhatGetTrackInfo               = 'gTrI',
108        kWhatSelectTrack                = 'selT',
109    };
110
111    wp<NuPlayerDriver> mDriver;
112    bool mUIDValid;
113    uid_t mUID;
114    sp<Source> mSource;
115    uint32_t mSourceFlags;
116    sp<NativeWindowWrapper> mNativeWindow;
117    sp<MediaPlayerBase::AudioSink> mAudioSink;
118    sp<Decoder> mVideoDecoder;
119    bool mVideoIsAVC;
120    sp<Decoder> mAudioDecoder;
121    sp<Renderer> mRenderer;
122
123    List<sp<Action> > mDeferredActions;
124
125    bool mAudioEOS;
126    bool mVideoEOS;
127
128    bool mScanSourcesPending;
129    int32_t mScanSourcesGeneration;
130
131    int32_t mPollDurationGeneration;
132
133    enum FlushStatus {
134        NONE,
135        AWAITING_DISCONTINUITY,
136        FLUSHING_DECODER,
137        FLUSHING_DECODER_SHUTDOWN,
138        SHUTTING_DOWN_DECODER,
139        FLUSHED,
140        SHUT_DOWN,
141    };
142
143    // Once the current flush is complete this indicates whether the
144    // notion of time has changed.
145    bool mTimeDiscontinuityPending;
146
147    FlushStatus mFlushingAudio;
148    FlushStatus mFlushingVideo;
149
150    int64_t mSkipRenderingAudioUntilMediaTimeUs;
151    int64_t mSkipRenderingVideoUntilMediaTimeUs;
152
153    int64_t mVideoLateByUs;
154    int64_t mNumFramesTotal, mNumFramesDropped;
155
156    int32_t mVideoScalingMode;
157
158    bool mStarted;
159
160    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
161
162    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
163    void renderBuffer(bool audio, const sp<AMessage> &msg);
164
165    void notifyListener(int msg, int ext1, int ext2, const Parcel *in = NULL);
166
167    void finishFlushIfPossible();
168
169    void flushDecoder(bool audio, bool needShutdown);
170
171    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
172
173    void postScanSources();
174
175    void schedulePollDuration();
176    void cancelPollDuration();
177
178    void processDeferredActions();
179
180    void performSeek(int64_t seekTimeUs);
181    void performDecoderFlush();
182    void performDecoderShutdown(bool audio, bool video);
183    void performReset();
184    void performScanSources();
185    void performSetSurface(const sp<NativeWindowWrapper> &wrapper);
186
187    void onSourceNotify(const sp<AMessage> &msg);
188
189    void queueDecoderShutdown(
190            bool audio, bool video, const sp<AMessage> &reply);
191
192    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
193};
194
195}  // namespace android
196
197#endif  // NU_PLAYER_H_
198