RTSPSource.h revision 57cea553cb19235553463412db5ad04c99835411 
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
27namespace android {
28
29struct ALooper;
30struct AnotherPacketSource;
31struct MyHandler;
32struct SDPLoader;
33
34struct 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
47    virtual status_t feedMoreTSData();
48
49    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
50
51    virtual status_t getDuration(int64_t *durationUs);
52    virtual status_t seekTo(int64_t seekTimeUs);
53
54    void onMessageReceived(const sp<AMessage> &msg);
55
56protected:
57    virtual ~RTSPSource();
58
59    virtual sp<MetaData> getFormatMeta(bool audio);
60
61private:
62    enum {
63        kWhatNotify          = 'noti',
64        kWhatDisconnect      = 'disc',
65        kWhatPerformSeek     = 'seek',
66    };
67
68    enum State {
69        DISCONNECTED,
70        CONNECTING,
71        CONNECTED,
72        SEEKING,
73    };
74
75    enum Flags {
76        // Don't log any URLs.
77        kFlagIncognito = 1,
78    };
79
80    struct TrackInfo {
81        sp<AnotherPacketSource> mSource;
82
83        int32_t mTimeScale;
84        uint32_t mRTPTime;
85        int64_t mNormalPlaytimeUs;
86        bool mNPTMappingValid;
87    };
88
89    AString mURL;
90    KeyedVector<String8, String8> mExtraHeaders;
91    bool mUIDValid;
92    uid_t mUID;
93    uint32_t mFlags;
94    bool mIsSDP;
95    State mState;
96    status_t mFinalResult;
97    uint32_t mDisconnectReplyID;
98    bool mStartingUp;
99
100    sp<ALooper> mLooper;
101    sp<AHandlerReflector<RTSPSource> > mReflector;
102    sp<MyHandler> mHandler;
103    sp<SDPLoader> mSDPLoader;
104
105    Vector<TrackInfo> mTracks;
106    sp<AnotherPacketSource> mAudioTrack;
107    sp<AnotherPacketSource> mVideoTrack;
108
109    sp<ATSParser> mTSParser;
110
111    int32_t mSeekGeneration;
112
113    sp<AnotherPacketSource> getSource(bool audio);
114
115    void onConnected();
116    void onSDPLoaded(const sp<AMessage> &msg);
117    void onDisconnected(const sp<AMessage> &msg);
118    void finishDisconnectIfPossible();
119
120    void performSeek(int64_t seekTimeUs);
121
122    bool haveSufficientDataOnAllTracks();
123
124    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
125};
126
127}  // namespace android
128
129#endif  // RTSP_SOURCE_H_
130