NuPlayer.h revision 6e3d311b6631b12aac2879d1b08c3534aece78b1 
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#include <gui/SurfaceTextureClient.h>
25#include <surfaceflinger/Surface.h>
26
27namespace android {
28
29struct ACodec;
30struct MetaData;
31struct NuPlayerDriver;
32
33struct NuPlayer : public AHandler {
34    NuPlayer();
35
36    void setUID(uid_t uid);
37
38    void setDriver(const wp<NuPlayerDriver> &driver);
39
40    void setDataSource(const sp<IStreamSource> &source);
41
42    void setDataSource(
43            const char *url, const KeyedVector<String8, String8> *headers);
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
58protected:
59    virtual ~NuPlayer();
60
61    virtual void onMessageReceived(const sp<AMessage> &msg);
62
63private:
64    struct Decoder;
65    struct HTTPLiveSource;
66    struct NuPlayerStreamListener;
67    struct Renderer;
68    struct Source;
69    struct StreamingSource;
70    struct RTSPSource;
71
72    enum {
73        kWhatSetDataSource              = '=DaS',
74        kWhatSetVideoNativeWindow       = '=NaW',
75        kWhatSetAudioSink               = '=AuS',
76        kWhatMoreDataQueued             = 'more',
77        kWhatStart                      = 'strt',
78        kWhatScanSources                = 'scan',
79        kWhatVideoNotify                = 'vidN',
80        kWhatAudioNotify                = 'audN',
81        kWhatRendererNotify             = 'renN',
82        kWhatReset                      = 'rset',
83        kWhatSeek                       = 'seek',
84        kWhatPause                      = 'paus',
85        kWhatResume                     = 'rsme',
86    };
87
88    wp<NuPlayerDriver> mDriver;
89    bool mUIDValid;
90    uid_t mUID;
91    sp<Source> mSource;
92    sp<NativeWindowWrapper> mNativeWindow;
93    sp<MediaPlayerBase::AudioSink> mAudioSink;
94    sp<Decoder> mVideoDecoder;
95    bool mVideoIsAVC;
96    sp<Decoder> mAudioDecoder;
97    sp<Renderer> mRenderer;
98
99    bool mAudioEOS;
100    bool mVideoEOS;
101
102    bool mScanSourcesPending;
103    int32_t mScanSourcesGeneration;
104
105    enum FlushStatus {
106        NONE,
107        AWAITING_DISCONTINUITY,
108        FLUSHING_DECODER,
109        FLUSHING_DECODER_SHUTDOWN,
110        SHUTTING_DOWN_DECODER,
111        FLUSHED,
112        SHUT_DOWN,
113    };
114
115    // Once the current flush is complete this indicates whether the
116    // notion of time has changed.
117    bool mTimeDiscontinuityPending;
118
119    FlushStatus mFlushingAudio;
120    FlushStatus mFlushingVideo;
121    bool mResetInProgress;
122    bool mResetPostponed;
123
124    int64_t mSkipRenderingAudioUntilMediaTimeUs;
125    int64_t mSkipRenderingVideoUntilMediaTimeUs;
126
127    int64_t mVideoLateByUs;
128    int64_t mNumFramesTotal, mNumFramesDropped;
129
130    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
131
132    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
133    void renderBuffer(bool audio, const sp<AMessage> &msg);
134
135    void notifyListener(int msg, int ext1, int ext2);
136
137    void finishFlushIfPossible();
138
139    void flushDecoder(bool audio, bool needShutdown);
140
141    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
142
143    void finishReset();
144    void postScanSources();
145
146    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
147};
148
149}  // namespace android
150
151#endif  // NU_PLAYER_H_
152