NuPlayer.h revision 8b71241ce7353731ab75322c46e090ee35014a33 
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
58protected:
59    virtual ~NuPlayer();
60
61    virtual void onMessageReceived(const sp<AMessage> &msg);
62
63private:
64    struct Decoder;
65    struct GenericSource;
66    struct HTTPLiveSource;
67    struct NuPlayerStreamListener;
68    struct Renderer;
69    struct RTSPSource;
70    struct Source;
71    struct StreamingSource;
72
73    enum {
74        kWhatSetDataSource              = '=DaS',
75        kWhatSetVideoNativeWindow       = '=NaW',
76        kWhatSetAudioSink               = '=AuS',
77        kWhatMoreDataQueued             = 'more',
78        kWhatStart                      = 'strt',
79        kWhatScanSources                = 'scan',
80        kWhatVideoNotify                = 'vidN',
81        kWhatAudioNotify                = 'audN',
82        kWhatRendererNotify             = 'renN',
83        kWhatReset                      = 'rset',
84        kWhatSeek                       = 'seek',
85        kWhatPause                      = 'paus',
86        kWhatResume                     = 'rsme',
87    };
88
89    wp<NuPlayerDriver> mDriver;
90    bool mUIDValid;
91    uid_t mUID;
92    sp<Source> mSource;
93    sp<NativeWindowWrapper> mNativeWindow;
94    sp<MediaPlayerBase::AudioSink> mAudioSink;
95    sp<Decoder> mVideoDecoder;
96    bool mVideoIsAVC;
97    sp<Decoder> mAudioDecoder;
98    sp<Renderer> mRenderer;
99
100    bool mAudioEOS;
101    bool mVideoEOS;
102
103    bool mScanSourcesPending;
104    int32_t mScanSourcesGeneration;
105
106    enum FlushStatus {
107        NONE,
108        AWAITING_DISCONTINUITY,
109        FLUSHING_DECODER,
110        FLUSHING_DECODER_SHUTDOWN,
111        SHUTTING_DOWN_DECODER,
112        FLUSHED,
113        SHUT_DOWN,
114    };
115
116    // Once the current flush is complete this indicates whether the
117    // notion of time has changed.
118    bool mTimeDiscontinuityPending;
119
120    FlushStatus mFlushingAudio;
121    FlushStatus mFlushingVideo;
122    bool mResetInProgress;
123    bool mResetPostponed;
124
125    int64_t mSkipRenderingAudioUntilMediaTimeUs;
126    int64_t mSkipRenderingVideoUntilMediaTimeUs;
127
128    int64_t mVideoLateByUs;
129    int64_t mNumFramesTotal, mNumFramesDropped;
130
131    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
132
133    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
134    void renderBuffer(bool audio, const sp<AMessage> &msg);
135
136    void notifyListener(int msg, int ext1, int ext2);
137
138    void finishFlushIfPossible();
139
140    void flushDecoder(bool audio, bool needShutdown);
141
142    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
143
144    void finishReset();
145    void postScanSources();
146
147    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
148};
149
150}  // namespace android
151
152#endif  // NU_PLAYER_H_
153