1/*
2 * Copyright 2017 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_SOURCE2_H_
18
19#define RTSP_SOURCE2_H_
20
21#include "NuPlayer2Source.h"
22
23#include "ATSParser.h"
24
25namespace android {
26
27struct ALooper;
28struct AReplyToken;
29struct AnotherPacketSource;
30struct MyHandler;
31struct SDPLoader;
32
33struct NuPlayer2::RTSPSource2 : public NuPlayer2::Source {
34    RTSPSource2(
35            const sp<AMessage> &notify,
36            const sp<MediaHTTPService> &httpService,
37            const char *url,
38            const KeyedVector<String8, String8> *headers,
39            uid_t uid = 0,
40            bool isSDP = false);
41
42    virtual status_t getBufferingSettings(
43            BufferingSettings* buffering /* nonnull */) override;
44    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
45
46    virtual void prepareAsync();
47    virtual void start();
48    virtual void stop();
49
50    virtual status_t feedMoreTSData();
51
52    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
53
54    virtual status_t getDuration(int64_t *durationUs);
55    virtual status_t seekTo(
56            int64_t seekTimeUs,
57            MediaPlayer2SeekMode mode = MediaPlayer2SeekMode::SEEK_PREVIOUS_SYNC) override;
58
59    void onMessageReceived(const sp<AMessage> &msg);
60
61protected:
62    virtual ~RTSPSource2();
63
64    virtual sp<MetaData> getFormatMeta(bool audio);
65
66private:
67    enum {
68        kWhatNotify          = 'noti',
69        kWhatDisconnect      = 'disc',
70        kWhatPerformSeek     = 'seek',
71        kWhatPollBuffering   = 'poll',
72        kWhatSignalEOS       = 'eos ',
73    };
74
75    enum State {
76        DISCONNECTED,
77        CONNECTING,
78        CONNECTED,
79        SEEKING,
80    };
81
82    enum Flags {
83        // Don't log any URLs.
84        kFlagIncognito = 1,
85    };
86
87    struct TrackInfo {
88        sp<AnotherPacketSource> mSource;
89
90        int32_t mTimeScale;
91        uint32_t mRTPTime;
92        int64_t mNormalPlaytimeUs;
93        bool mNPTMappingValid;
94    };
95
96    sp<MediaHTTPService> mHTTPService;
97    AString mURL;
98    KeyedVector<String8, String8> mExtraHeaders;
99    uid_t mUID;
100    uint32_t mFlags;
101    bool mIsSDP;
102    State mState;
103    status_t mFinalResult;
104    sp<AReplyToken> mDisconnectReplyID;
105    Mutex mBufferingLock;
106    bool mBuffering;
107    bool mInPreparationPhase;
108    bool mEOSPending;
109
110    Mutex mBufferingSettingsLock;
111    BufferingSettings mBufferingSettings;
112
113    sp<ALooper> mLooper;
114    sp<MyHandler> mHandler;
115    sp<SDPLoader> mSDPLoader;
116
117    Vector<TrackInfo> mTracks;
118    sp<AnotherPacketSource> mAudioTrack;
119    sp<AnotherPacketSource> mVideoTrack;
120
121    sp<ATSParser> mTSParser;
122
123    int32_t mSeekGeneration;
124
125    int64_t mEOSTimeoutAudio;
126    int64_t mEOSTimeoutVideo;
127
128    sp<AReplyToken> mSeekReplyID;
129
130    sp<AnotherPacketSource> getSource(bool audio);
131
132    void onConnected();
133    void onSDPLoaded(const sp<AMessage> &msg);
134    void onDisconnected(const sp<AMessage> &msg);
135    void finishDisconnectIfPossible();
136
137    void performSeek(int64_t seekTimeUs);
138    void schedulePollBuffering();
139    void checkBuffering(
140            bool *prepared,
141            bool *underflow,
142            bool *overflow,
143            bool *startServer,
144            bool *finished);
145    void onPollBuffering();
146
147    bool haveSufficientDataOnAllTracks();
148
149    void setEOSTimeout(bool audio, int64_t timeout);
150    void setError(status_t err);
151    void startBufferingIfNecessary();
152    bool stopBufferingIfNecessary();
153    void finishSeek(status_t err);
154
155    void postSourceEOSIfNecessary();
156    void signalSourceEOS(status_t result);
157    void onSignalEOS(const sp<AMessage> &msg);
158
159    bool sourceNearEOS(bool audio);
160    bool sourceReachedEOS(bool audio);
161
162    DISALLOW_EVIL_CONSTRUCTORS(RTSPSource2);
163};
164
165}  // namespace android
166
167#endif  // RTSP_SOURCE2_H_
168