RTSPSource.h revision 8d237a5ce1e3c1dbc1d538f47e68cff2cc52d799 
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 RTSP_SOURCE_H_
18
19#define RTSP_SOURCE_H_
20
21#include "NuPlayerSource.h"
22
23#include "ATSParser.h"
24
25namespace android {
26
27struct ALooper;
28struct AReplyToken;
29struct AnotherPacketSource;
30struct MyHandler;
31struct SDPLoader;
32
33struct NuPlayer::RTSPSource : public NuPlayer::Source {
34    RTSPSource(
35            const sp<AMessage> &notify,
36            const sp<IMediaHTTPService> &httpService,
37            const char *url,
38            const KeyedVector<String8, String8> *headers,
39            bool uidValid = false,
40            uid_t uid = 0,
41            bool isSDP = false);
42
43    virtual void prepareAsync();
44    virtual void start();
45    virtual void stop();
46    virtual void pause();
47    virtual void resume();
48
49    virtual status_t feedMoreTSData();
50
51    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
52
53    virtual status_t getDuration(int64_t *durationUs);
54    virtual status_t seekTo(int64_t seekTimeUs);
55
56    void onMessageReceived(const sp<AMessage> &msg);
57
58protected:
59    virtual ~RTSPSource();
60
61    virtual sp<MetaData> getFormatMeta(bool audio);
62
63private:
64    enum {
65        kWhatNotify          = 'noti',
66        kWhatDisconnect      = 'disc',
67        kWhatPerformSeek     = 'seek',
68    };
69
70    enum State {
71        DISCONNECTED,
72        CONNECTING,
73        CONNECTED,
74        SEEKING,
75    };
76
77    enum Flags {
78        // Don't log any URLs.
79        kFlagIncognito = 1,
80    };
81
82    struct TrackInfo {
83        sp<AnotherPacketSource> mSource;
84
85        int32_t mTimeScale;
86        uint32_t mRTPTime;
87        int64_t mNormalPlaytimeUs;
88        bool mNPTMappingValid;
89    };
90
91    sp<IMediaHTTPService> mHTTPService;
92    AString mURL;
93    KeyedVector<String8, String8> mExtraHeaders;
94    bool mUIDValid;
95    uid_t mUID;
96    uint32_t mFlags;
97    bool mIsSDP;
98    State mState;
99    status_t mFinalResult;
100    sp<AReplyToken> mDisconnectReplyID;
101    Mutex mBufferingLock;
102    bool mBuffering;
103
104    sp<ALooper> mLooper;
105    sp<MyHandler> mHandler;
106    sp<SDPLoader> mSDPLoader;
107
108    Vector<TrackInfo> mTracks;
109    sp<AnotherPacketSource> mAudioTrack;
110    sp<AnotherPacketSource> mVideoTrack;
111
112    sp<ATSParser> mTSParser;
113
114    int32_t mSeekGeneration;
115
116    int64_t mEOSTimeoutAudio;
117    int64_t mEOSTimeoutVideo;
118
119    sp<AReplyToken> mSeekReplyID;
120
121    sp<AnotherPacketSource> getSource(bool audio);
122
123    void onConnected();
124    void onSDPLoaded(const sp<AMessage> &msg);
125    void onDisconnected(const sp<AMessage> &msg);
126    void finishDisconnectIfPossible();
127
128    void performSeek(int64_t seekTimeUs);
129
130    bool haveSufficientDataOnAllTracks();
131
132    void setEOSTimeout(bool audio, int64_t timeout);
133    void setError(status_t err);
134    void startBufferingIfNecessary();
135    bool stopBufferingIfNecessary();
136    void finishSeek(status_t err);
137
138    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
139};
140
141}  // namespace android
142
143#endif  // RTSP_SOURCE_H_
144