NuPlayer.h revision 840667883fd09d44015716d79bc3ac4d60edc0f0 
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
63public:
64    struct NuPlayerStreamListener;
65    struct Source;
66
67private:
68    struct Decoder;
69    struct GenericSource;
70    struct HTTPLiveSource;
71    struct Renderer;
72    struct RTSPSource;
73    struct StreamingSource;
74
75    enum {
76        kWhatSetDataSource              = '=DaS',
77        kWhatSetVideoNativeWindow       = '=NaW',
78        kWhatSetAudioSink               = '=AuS',
79        kWhatMoreDataQueued             = 'more',
80        kWhatStart                      = 'strt',
81        kWhatScanSources                = 'scan',
82        kWhatVideoNotify                = 'vidN',
83        kWhatAudioNotify                = 'audN',
84        kWhatRendererNotify             = 'renN',
85        kWhatReset                      = 'rset',
86        kWhatSeek                       = 'seek',
87        kWhatPause                      = 'paus',
88        kWhatResume                     = 'rsme',
89    };
90
91    wp<NuPlayerDriver> mDriver;
92    bool mUIDValid;
93    uid_t mUID;
94    sp<Source> mSource;
95    sp<NativeWindowWrapper> mNativeWindow;
96    sp<MediaPlayerBase::AudioSink> mAudioSink;
97    sp<Decoder> mVideoDecoder;
98    bool mVideoIsAVC;
99    sp<Decoder> mAudioDecoder;
100    sp<Renderer> mRenderer;
101
102    bool mAudioEOS;
103    bool mVideoEOS;
104
105    bool mScanSourcesPending;
106    int32_t mScanSourcesGeneration;
107
108    enum FlushStatus {
109        NONE,
110        AWAITING_DISCONTINUITY,
111        FLUSHING_DECODER,
112        FLUSHING_DECODER_SHUTDOWN,
113        SHUTTING_DOWN_DECODER,
114        FLUSHED,
115        SHUT_DOWN,
116    };
117
118    // Once the current flush is complete this indicates whether the
119    // notion of time has changed.
120    bool mTimeDiscontinuityPending;
121
122    FlushStatus mFlushingAudio;
123    FlushStatus mFlushingVideo;
124    bool mResetInProgress;
125    bool mResetPostponed;
126
127    int64_t mSkipRenderingAudioUntilMediaTimeUs;
128    int64_t mSkipRenderingVideoUntilMediaTimeUs;
129
130    int64_t mVideoLateByUs;
131    int64_t mNumFramesTotal, mNumFramesDropped;
132
133    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
134
135    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
136    void renderBuffer(bool audio, const sp<AMessage> &msg);
137
138    void notifyListener(int msg, int ext1, int ext2);
139
140    void finishFlushIfPossible();
141
142    void flushDecoder(bool audio, bool needShutdown);
143
144    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
145
146    void finishReset();
147    void postScanSources();
148
149    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
150};
151
152}  // namespace android
153
154#endif  // NU_PLAYER_H_
155