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
25namespace android {
26
27struct ALooper;
28struct AnotherPacketSource;
29struct MyHandler;
30struct SDPLoader;
31
32struct NuPlayer::RTSPSource : public NuPlayer::Source {
33    RTSPSource(
34            const sp<AMessage> &notify,
35            const sp<IMediaHTTPService> &httpService,
36            const char *url,
37            const KeyedVector<String8, String8> *headers,
38            bool uidValid = false,
39            uid_t uid = 0,
40            bool isSDP = false);
41
42    virtual void prepareAsync();
43    virtual void start();
44    virtual void stop();
45    virtual void pause();
46    virtual void resume();
47
48    virtual status_t feedMoreTSData();
49
50    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
51
52    virtual status_t getDuration(int64_t *durationUs);
53    virtual status_t seekTo(int64_t seekTimeUs);
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    sp<IMediaHTTPService> mHTTPService;
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    Mutex mBufferingLock;
101    bool mBuffering;
102
103    sp<ALooper> mLooper;
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    void setError(status_t err);
131    void startBufferingIfNecessary();
132    bool stopBufferingIfNecessary();
133
134    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
135};
136
137}  // namespace android
138
139#endif  // RTSP_SOURCE_H_
140