NuPlayer.h revision 92630351d265a61faae2dfe006a8bb330283aa7b 
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    status_t getTrackInfo(Parcel* reply) const;
64    status_t selectTrack(size_t trackIndex, bool select);
65
66protected:
67    virtual ~NuPlayer();
68
69    virtual void onMessageReceived(const sp<AMessage> &msg);
70
71public:
72    struct NuPlayerStreamListener;
73    struct Source;
74
75private:
76    struct Decoder;
77    struct GenericSource;
78    struct HTTPLiveSource;
79    struct Renderer;
80    struct RTSPSource;
81    struct StreamingSource;
82    struct Action;
83    struct SeekAction;
84    struct SetSurfaceAction;
85    struct ShutdownDecoderAction;
86    struct PostMessageAction;
87    struct SimpleAction;
88
89    enum {
90        kWhatSetDataSource              = '=DaS',
91        kWhatPrepare                    = 'prep',
92        kWhatSetVideoNativeWindow       = '=NaW',
93        kWhatSetAudioSink               = '=AuS',
94        kWhatMoreDataQueued             = 'more',
95        kWhatStart                      = 'strt',
96        kWhatScanSources                = 'scan',
97        kWhatVideoNotify                = 'vidN',
98        kWhatAudioNotify                = 'audN',
99        kWhatRendererNotify             = 'renN',
100        kWhatReset                      = 'rset',
101        kWhatSeek                       = 'seek',
102        kWhatPause                      = 'paus',
103        kWhatResume                     = 'rsme',
104        kWhatPollDuration               = 'polD',
105        kWhatSourceNotify               = 'srcN',
106        kWhatGetTrackInfo               = 'gTrI',
107        kWhatSelectTrack                = 'selT',
108    };
109
110    wp<NuPlayerDriver> mDriver;
111    bool mUIDValid;
112    uid_t mUID;
113    sp<Source> mSource;
114    uint32_t mSourceFlags;
115    sp<NativeWindowWrapper> mNativeWindow;
116    sp<MediaPlayerBase::AudioSink> mAudioSink;
117    sp<Decoder> mVideoDecoder;
118    bool mVideoIsAVC;
119    bool mNeedsSwRenderer;
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