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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 
25 #include <media/stagefright/foundation/AHandlerReflector.h>
26 
27 namespace android {
28 
29 struct ALooper;
30 struct AnotherPacketSource;
31 struct MyHandler;
32 struct SDPLoader;
33 
34 struct NuPlayer::RTSPSource : public NuPlayer::Source {
35     RTSPSource(
36             const sp<AMessage> &notify,
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 
58 protected:
59     virtual ~RTSPSource();
60 
61     virtual sp<MetaData> getFormatMeta(bool audio);
62 
63 private:
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     AString mURL;
92     KeyedVector<String8, String8> mExtraHeaders;
93     bool mUIDValid;
94     uid_t mUID;
95     uint32_t mFlags;
96     bool mIsSDP;
97     State mState;
98     status_t mFinalResult;
99     uint32_t mDisconnectReplyID;
100     bool mBuffering;
101 
102     sp<ALooper> mLooper;
103     sp<AHandlerReflector<RTSPSource> > mReflector;
104     sp<MyHandler> mHandler;
105     sp<SDPLoader> mSDPLoader;
106 
107     Vector<TrackInfo> mTracks;
108     sp<AnotherPacketSource> mAudioTrack;
109     sp<AnotherPacketSource> mVideoTrack;
110 
111     sp<ATSParser> mTSParser;
112 
113     int32_t mSeekGeneration;
114 
115     int64_t mEOSTimeoutAudio;
116     int64_t mEOSTimeoutVideo;
117 
118     sp<AnotherPacketSource> getSource(bool audio);
119 
120     void onConnected();
121     void onSDPLoaded(const sp<AMessage> &msg);
122     void onDisconnected(const sp<AMessage> &msg);
123     void finishDisconnectIfPossible();
124 
125     void performSeek(int64_t seekTimeUs);
126 
127     bool haveSufficientDataOnAllTracks();
128 
129     void setEOSTimeout(bool audio, int64_t timeout);
130 
131     DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
132 };
133 
134 }  // namespace android
135 
136 #endif  // RTSP_SOURCE_H_
137