RTSPSource.h revision bfd4d0d9fe0033abf3f55b94f30f6a58846a875e 
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 <media/stagefright/foundation/AHandlerReflector.h>
24
25namespace android {
26
27struct ALooper;
28struct AnotherPacketSource;
29struct MyHandler;
30
31struct NuPlayer::RTSPSource : public NuPlayer::Source {
32    RTSPSource(
33            const char *url,
34            const KeyedVector<String8, String8> *headers,
35            bool uidValid = false,
36            uid_t uid = 0);
37
38    virtual void start();
39    virtual void stop();
40
41    virtual status_t feedMoreTSData();
42
43    virtual sp<MetaData> getFormat(bool audio);
44    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
45
46    virtual status_t getDuration(int64_t *durationUs);
47    virtual status_t seekTo(int64_t seekTimeUs);
48    virtual bool isSeekable();
49
50    void onMessageReceived(const sp<AMessage> &msg);
51
52protected:
53    virtual ~RTSPSource();
54
55private:
56    enum {
57        kWhatNotify          = 'noti',
58        kWhatDisconnect      = 'disc',
59        kWhatPerformSeek     = 'seek',
60    };
61
62    enum State {
63        DISCONNECTED,
64        CONNECTING,
65        CONNECTED,
66        SEEKING,
67    };
68
69    enum Flags {
70        // Don't log any URLs.
71        kFlagIncognito = 1,
72    };
73
74    struct TrackInfo {
75        sp<AnotherPacketSource> mSource;
76
77        int32_t mTimeScale;
78        uint32_t mRTPTime;
79        int64_t mNormalPlaytimeUs;
80        bool mNPTMappingValid;
81    };
82
83    AString mURL;
84    KeyedVector<String8, String8> mExtraHeaders;
85    bool mUIDValid;
86    uid_t mUID;
87    uint32_t mFlags;
88    State mState;
89    status_t mFinalResult;
90    uint32_t mDisconnectReplyID;
91    bool mStartingUp;
92
93    sp<ALooper> mLooper;
94    sp<AHandlerReflector<RTSPSource> > mReflector;
95    sp<MyHandler> mHandler;
96
97    Vector<TrackInfo> mTracks;
98    sp<AnotherPacketSource> mAudioTrack;
99    sp<AnotherPacketSource> mVideoTrack;
100
101    int32_t mSeekGeneration;
102
103    sp<AnotherPacketSource> getSource(bool audio);
104
105    void onConnected();
106    void onDisconnected(const sp<AMessage> &msg);
107    void finishDisconnectIfPossible();
108
109    void performSeek(int64_t seekTimeUs);
110
111    bool haveSufficientDataOnAllTracks();
112
113    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
114};
115
116}  // namespace android
117
118#endif  // RTSP_SOURCE_H_
119