RTSPSource.h revision 46d13e3606b87d71379287672b54b50d0d9aa5cc 
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    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    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