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 namespace android { 26 27 struct ALooper; 28 struct AReplyToken; 29 struct AnotherPacketSource; 30 struct MyHandler; 31 struct SDPLoader; 32 33 struct NuPlayer::RTSPSource : public NuPlayer::Source { 34 RTSPSource( 35 const sp<AMessage> ¬ify, 36 const sp<IMediaHTTPService> &httpService, 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 47 virtual status_t feedMoreTSData(); 48 49 virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit); 50 51 virtual status_t getDuration(int64_t *durationUs); 52 virtual status_t seekTo(int64_t seekTimeUs); 53 54 void onMessageReceived(const sp<AMessage> &msg); 55 56 protected: 57 virtual ~RTSPSource(); 58 59 virtual sp<MetaData> getFormatMeta(bool audio); 60 61 private: 62 enum { 63 kWhatNotify = 'noti', 64 kWhatDisconnect = 'disc', 65 kWhatPerformSeek = 'seek', 66 kWhatPollBuffering = 'poll', 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 // Buffer Prepare/Underflow/Overflow/Resume Marks 82 static const int64_t kPrepareMarkUs; 83 static const int64_t kUnderflowMarkUs; 84 static const int64_t kOverflowMarkUs; 85 static const int64_t kStartServerMarkUs; 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<IMediaHTTPService> mHTTPService; 97 AString mURL; 98 KeyedVector<String8, String8> mExtraHeaders; 99 bool mUIDValid; 100 uid_t mUID; 101 uint32_t mFlags; 102 bool mIsSDP; 103 State mState; 104 status_t mFinalResult; 105 sp<AReplyToken> mDisconnectReplyID; 106 Mutex mBufferingLock; 107 bool mBuffering; 108 bool mInPreparationPhase; 109 110 sp<ALooper> mLooper; 111 sp<MyHandler> mHandler; 112 sp<SDPLoader> mSDPLoader; 113 114 Vector<TrackInfo> mTracks; 115 sp<AnotherPacketSource> mAudioTrack; 116 sp<AnotherPacketSource> mVideoTrack; 117 118 sp<ATSParser> mTSParser; 119 120 int32_t mSeekGeneration; 121 122 int64_t mEOSTimeoutAudio; 123 int64_t mEOSTimeoutVideo; 124 125 sp<AReplyToken> mSeekReplyID; 126 127 sp<AnotherPacketSource> getSource(bool audio); 128 129 void onConnected(); 130 void onSDPLoaded(const sp<AMessage> &msg); 131 void onDisconnected(const sp<AMessage> &msg); 132 void finishDisconnectIfPossible(); 133 134 void performSeek(int64_t seekTimeUs); 135 void schedulePollBuffering(); 136 void checkBuffering(bool *prepared, bool *underflow, bool *overflow, bool *startServer); 137 void onPollBuffering(); 138 139 bool haveSufficientDataOnAllTracks(); 140 141 void setEOSTimeout(bool audio, int64_t timeout); 142 void setError(status_t err); 143 void startBufferingIfNecessary(); 144 bool stopBufferingIfNecessary(); 145 void finishSeek(status_t err); 146 147 DISALLOW_EVIL_CONSTRUCTORS(RTSPSource); 148 }; 149 150 } // namespace android 151 152 #endif // RTSP_SOURCE_H_ 153