NuPlayer.h revision a7fa1d9530b6870f2c7850e3025d7db963661803 
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 ABuffer;
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 sp<IMediaHTTPService> &httpService,
42            const char *url,
43            const KeyedVector<String8, String8> *headers);
44
45    void setDataSourceAsync(int fd, int64_t offset, int64_t length);
46
47    void prepareAsync();
48
49    void setVideoSurfaceTextureAsync(
50            const sp<IGraphicBufferProducer> &bufferProducer);
51
52    void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
53    void start();
54
55    void pause();
56    void resume();
57
58    // Will notify the driver through "notifyResetComplete" once finished.
59    void resetAsync();
60
61    // Will notify the driver through "notifySeekComplete" once finished.
62    void seekToAsync(int64_t seekTimeUs);
63
64    status_t setVideoScalingMode(int32_t mode);
65    status_t getTrackInfo(Parcel* reply) const;
66    status_t selectTrack(size_t trackIndex, bool select);
67
68protected:
69    virtual ~NuPlayer();
70
71    virtual void onMessageReceived(const sp<AMessage> &msg);
72
73public:
74    struct NuPlayerStreamListener;
75    struct Source;
76
77private:
78    struct Decoder;
79    struct CCDecoder;
80    struct GenericSource;
81    struct HTTPLiveSource;
82    struct Renderer;
83    struct RTSPSource;
84    struct StreamingSource;
85    struct Action;
86    struct SeekAction;
87    struct SetSurfaceAction;
88    struct ShutdownDecoderAction;
89    struct PostMessageAction;
90    struct SimpleAction;
91
92    enum {
93        kWhatSetDataSource              = '=DaS',
94        kWhatPrepare                    = 'prep',
95        kWhatSetVideoNativeWindow       = '=NaW',
96        kWhatSetAudioSink               = '=AuS',
97        kWhatMoreDataQueued             = 'more',
98        kWhatStart                      = 'strt',
99        kWhatScanSources                = 'scan',
100        kWhatVideoNotify                = 'vidN',
101        kWhatAudioNotify                = 'audN',
102        kWhatClosedCaptionNotify        = 'capN',
103        kWhatRendererNotify             = 'renN',
104        kWhatReset                      = 'rset',
105        kWhatSeek                       = 'seek',
106        kWhatPause                      = 'paus',
107        kWhatResume                     = 'rsme',
108        kWhatPollDuration               = 'polD',
109        kWhatSourceNotify               = 'srcN',
110        kWhatGetTrackInfo               = 'gTrI',
111        kWhatSelectTrack                = 'selT',
112    };
113
114    wp<NuPlayerDriver> mDriver;
115    bool mUIDValid;
116    uid_t mUID;
117    sp<Source> mSource;
118    uint32_t mSourceFlags;
119    sp<NativeWindowWrapper> mNativeWindow;
120    sp<MediaPlayerBase::AudioSink> mAudioSink;
121    sp<Decoder> mVideoDecoder;
122    bool mVideoIsAVC;
123    sp<Decoder> mAudioDecoder;
124    sp<CCDecoder> mCCDecoder;
125    sp<Renderer> mRenderer;
126
127    List<sp<Action> > mDeferredActions;
128
129    bool mAudioEOS;
130    bool mVideoEOS;
131
132    bool mScanSourcesPending;
133    int32_t mScanSourcesGeneration;
134
135    int32_t mPollDurationGeneration;
136
137    enum FlushStatus {
138        NONE,
139        AWAITING_DISCONTINUITY,
140        FLUSHING_DECODER,
141        FLUSHING_DECODER_SHUTDOWN,
142        SHUTTING_DOWN_DECODER,
143        FLUSHED,
144        SHUT_DOWN,
145    };
146
147    // Once the current flush is complete this indicates whether the
148    // notion of time has changed.
149    bool mTimeDiscontinuityPending;
150
151    FlushStatus mFlushingAudio;
152    FlushStatus mFlushingVideo;
153
154    int64_t mSkipRenderingAudioUntilMediaTimeUs;
155    int64_t mSkipRenderingVideoUntilMediaTimeUs;
156
157    int64_t mVideoLateByUs;
158    int64_t mNumFramesTotal, mNumFramesDropped;
159
160    int32_t mVideoScalingMode;
161
162    bool mStarted;
163
164    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
165
166    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
167    void renderBuffer(bool audio, const sp<AMessage> &msg);
168
169    void notifyListener(int msg, int ext1, int ext2, const Parcel *in = NULL);
170
171    void finishFlushIfPossible();
172
173    void flushDecoder(bool audio, bool needShutdown);
174
175    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
176
177    void postScanSources();
178
179    void schedulePollDuration();
180    void cancelPollDuration();
181
182    void processDeferredActions();
183
184    void performSeek(int64_t seekTimeUs);
185    void performDecoderFlush();
186    void performDecoderShutdown(bool audio, bool video);
187    void performReset();
188    void performScanSources();
189    void performSetSurface(const sp<NativeWindowWrapper> &wrapper);
190
191    void onSourceNotify(const sp<AMessage> &msg);
192    void onClosedCaptionNotify(const sp<AMessage> &msg);
193
194    void queueDecoderShutdown(
195            bool audio, bool video, const sp<AMessage> &reply);
196
197    void sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex);
198
199    void writeTrackInfo(Parcel* reply, const sp<AMessage> format) const;
200
201    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
202};
203
204}  // namespace android
205
206#endif  // NU_PLAYER_H_
207