RTSPSource.h revision 81dd60e0340ddcf7f1d5fb80b6c30906fabf201a 
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 start();
44    virtual void stop();
45
46    virtual status_t feedMoreTSData();
47
48    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
49
50    virtual status_t getDuration(int64_t *durationUs);
51    virtual status_t seekTo(int64_t seekTimeUs);
52
53    virtual uint32_t flags() const;
54
55    void onMessageReceived(const sp<AMessage> &msg);
56
57protected:
58    virtual ~RTSPSource();
59
60    virtual sp<MetaData> getFormatMeta(bool audio);
61
62private:
63    enum {
64        kWhatNotify          = 'noti',
65        kWhatDisconnect      = 'disc',
66        kWhatPerformSeek     = 'seek',
67    };
68
69    enum State {
70        DISCONNECTED,
71        CONNECTING,
72        CONNECTED,
73        SEEKING,
74    };
75
76    enum Flags {
77        // Don't log any URLs.
78        kFlagIncognito = 1,
79    };
80
81    struct TrackInfo {
82        sp<AnotherPacketSource> mSource;
83
84        int32_t mTimeScale;
85        uint32_t mRTPTime;
86        int64_t mNormalPlaytimeUs;
87        bool mNPTMappingValid;
88    };
89
90    AString mURL;
91    KeyedVector<String8, String8> mExtraHeaders;
92    bool mUIDValid;
93    uid_t mUID;
94    uint32_t mFlags;
95    bool mIsSDP;
96    State mState;
97    status_t mFinalResult;
98    uint32_t mDisconnectReplyID;
99    bool mStartingUp;
100
101    sp<ALooper> mLooper;
102    sp<AHandlerReflector<RTSPSource> > mReflector;
103    sp<MyHandler> mHandler;
104    sp<SDPLoader> mSDPLoader;
105
106    Vector<TrackInfo> mTracks;
107    sp<AnotherPacketSource> mAudioTrack;
108    sp<AnotherPacketSource> mVideoTrack;
109
110    sp<ATSParser> mTSParser;
111
112    int32_t mSeekGeneration;
113
114    sp<AnotherPacketSource> getSource(bool audio);
115
116    void onConnected();
117    void onSDPLoaded(const sp<AMessage> &msg);
118    void onDisconnected(const sp<AMessage> &msg);
119    void finishDisconnectIfPossible();
120
121    void performSeek(int64_t seekTimeUs);
122
123    bool haveSufficientDataOnAllTracks();
124
125    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
126};
127
128}  // namespace android
129
130#endif  // RTSP_SOURCE_H_
131