NuPlayer.h revision 1aef211b4e5dc952081727bfd2318b2cb5ca4506 
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
24namespace android {
25
26struct ACodec;
27struct MetaData;
28
29struct NuPlayer : public AHandler {
30    NuPlayer();
31
32    void setListener(const wp<MediaPlayerBase> &listener);
33
34    void setDataSource(const sp<IStreamSource> &source);
35
36    void setDataSource(
37            const char *url, const KeyedVector<String8, String8> *headers);
38
39    void setVideoSurface(const sp<Surface> &surface);
40    void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
41    void start();
42
43    // Will notify the listener that reset() has completed
44    // with code MEDIA_RESET_COMPLETE.
45    void resetAsync();
46
47protected:
48    virtual ~NuPlayer();
49
50    virtual void onMessageReceived(const sp<AMessage> &msg);
51
52private:
53    struct Decoder;
54    struct HTTPLiveSource;
55    struct NuPlayerStreamListener;
56    struct Renderer;
57    struct Source;
58    struct StreamingSource;
59
60    enum {
61        kWhatSetDataSource,
62        kWhatSetVideoSurface,
63        kWhatSetAudioSink,
64        kWhatMoreDataQueued,
65        kWhatStart,
66        kWhatScanSources,
67        kWhatVideoNotify,
68        kWhatAudioNotify,
69        kWhatRendererNotify,
70        kWhatReset,
71    };
72
73    wp<MediaPlayerBase> mListener;
74    sp<Source> mSource;
75    sp<Surface> mSurface;
76    sp<MediaPlayerBase::AudioSink> mAudioSink;
77    sp<Decoder> mVideoDecoder;
78    sp<Decoder> mAudioDecoder;
79    sp<Renderer> mRenderer;
80
81    bool mAudioEOS;
82    bool mVideoEOS;
83
84    bool mScanSourcesPending;
85    int32_t mScanSourcesGeneration;
86
87    enum FlushStatus {
88        NONE,
89        AWAITING_DISCONTINUITY,
90        FLUSHING_DECODER,
91        FLUSHING_DECODER_SHUTDOWN,
92        SHUTTING_DOWN_DECODER,
93        FLUSHED,
94        SHUT_DOWN,
95    };
96
97    FlushStatus mFlushingAudio;
98    FlushStatus mFlushingVideo;
99    bool mResetInProgress;
100    bool mResetPostponed;
101
102    status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
103
104    status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
105    void renderBuffer(bool audio, const sp<AMessage> &msg);
106
107    void notifyListener(int msg, int ext1, int ext2);
108
109    void finishFlushIfPossible();
110
111    void flushDecoder(bool audio, bool needShutdown);
112
113    static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
114
115    void finishReset();
116    void postScanSources();
117
118    DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
119};
120
121}  // namespace android
122
123#endif  // NU_PLAYER_H_
124