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 AReplyToken; 29struct AnotherPacketSource; 30struct MyHandler; 31struct SDPLoader; 32 33struct 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 56protected: 57 virtual ~RTSPSource(); 58 59 virtual sp<MetaData> getFormatMeta(bool audio); 60 61private: 62 enum { 63 kWhatNotify = 'noti', 64 kWhatDisconnect = 'disc', 65 kWhatPerformSeek = 'seek', 66 kWhatPollBuffering = 'poll', 67 kWhatSignalEOS = 'eos ', 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 // Buffer Prepare/Underflow/Overflow/Resume Marks 83 static const int64_t kPrepareMarkUs; 84 static const int64_t kUnderflowMarkUs; 85 static const int64_t kOverflowMarkUs; 86 static const int64_t kStartServerMarkUs; 87 88 struct TrackInfo { 89 sp<AnotherPacketSource> mSource; 90 91 int32_t mTimeScale; 92 uint32_t mRTPTime; 93 int64_t mNormalPlaytimeUs; 94 bool mNPTMappingValid; 95 }; 96 97 sp<IMediaHTTPService> mHTTPService; 98 AString mURL; 99 KeyedVector<String8, String8> mExtraHeaders; 100 bool mUIDValid; 101 uid_t mUID; 102 uint32_t mFlags; 103 bool mIsSDP; 104 State mState; 105 status_t mFinalResult; 106 sp<AReplyToken> mDisconnectReplyID; 107 Mutex mBufferingLock; 108 bool mBuffering; 109 bool mInPreparationPhase; 110 bool mEOSPending; 111 112 sp<ALooper> mLooper; 113 sp<MyHandler> mHandler; 114 sp<SDPLoader> mSDPLoader; 115 116 Vector<TrackInfo> mTracks; 117 sp<AnotherPacketSource> mAudioTrack; 118 sp<AnotherPacketSource> mVideoTrack; 119 120 sp<ATSParser> mTSParser; 121 122 int32_t mSeekGeneration; 123 124 int64_t mEOSTimeoutAudio; 125 int64_t mEOSTimeoutVideo; 126 127 sp<AReplyToken> mSeekReplyID; 128 129 sp<AnotherPacketSource> getSource(bool audio); 130 131 void onConnected(); 132 void onSDPLoaded(const sp<AMessage> &msg); 133 void onDisconnected(const sp<AMessage> &msg); 134 void finishDisconnectIfPossible(); 135 136 void performSeek(int64_t seekTimeUs); 137 void schedulePollBuffering(); 138 void checkBuffering( 139 bool *prepared, 140 bool *underflow, 141 bool *overflow, 142 bool *startServer, 143 bool *finished); 144 void onPollBuffering(); 145 146 bool haveSufficientDataOnAllTracks(); 147 148 void setEOSTimeout(bool audio, int64_t timeout); 149 void setError(status_t err); 150 void startBufferingIfNecessary(); 151 bool stopBufferingIfNecessary(); 152 void finishSeek(status_t err); 153 154 void postSourceEOSIfNecessary(); 155 void signalSourceEOS(status_t result); 156 void onSignalEOS(const sp<AMessage> &msg); 157 158 bool sourceNearEOS(bool audio); 159 bool sourceReachedEOS(bool audio); 160 161 DISALLOW_EVIL_CONSTRUCTORS(RTSPSource); 162}; 163 164} // namespace android 165 166#endif // RTSP_SOURCE_H_ 167