GenericSource.h revision 55e2f4ca5bb23ce32fbdd627b0f648c27106b98e
1/* 2 * Copyright (C) 2012 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 GENERIC_SOURCE_H_ 18 19#define GENERIC_SOURCE_H_ 20 21#include "NuPlayer.h" 22#include "NuPlayerSource.h" 23 24#include "ATSParser.h" 25 26#include <media/mediaplayer.h> 27 28namespace android { 29 30class DecryptHandle; 31class DrmManagerClient; 32struct AnotherPacketSource; 33struct ARTSPController; 34class DataSource; 35class IDataSource; 36struct IMediaHTTPService; 37struct MediaSource; 38class MediaBuffer; 39struct NuCachedSource2; 40class WVMExtractor; 41 42struct NuPlayer::GenericSource : public NuPlayer::Source { 43 GenericSource(const sp<AMessage> ¬ify, bool uidValid, uid_t uid); 44 45 status_t setDataSource( 46 const sp<IMediaHTTPService> &httpService, 47 const char *url, 48 const KeyedVector<String8, String8> *headers); 49 50 status_t setDataSource(int fd, int64_t offset, int64_t length); 51 52 status_t setDataSource(const sp<DataSource>& dataSource); 53 54 virtual void prepareAsync(); 55 56 virtual void start(); 57 virtual void stop(); 58 virtual void pause(); 59 virtual void resume(); 60 61 virtual void disconnect(); 62 63 virtual status_t feedMoreTSData(); 64 65 virtual sp<MetaData> getFileFormatMeta() const; 66 67 virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit); 68 69 virtual status_t getDuration(int64_t *durationUs); 70 virtual size_t getTrackCount() const; 71 virtual sp<AMessage> getTrackInfo(size_t trackIndex) const; 72 virtual ssize_t getSelectedTrack(media_track_type type) const; 73 virtual status_t selectTrack(size_t trackIndex, bool select, int64_t timeUs); 74 virtual status_t seekTo(int64_t seekTimeUs); 75 76 virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers); 77 78 virtual bool isStreaming() const; 79 80protected: 81 virtual ~GenericSource(); 82 83 virtual void onMessageReceived(const sp<AMessage> &msg); 84 85 virtual sp<MetaData> getFormatMeta(bool audio); 86 87private: 88 enum { 89 kWhatPrepareAsync, 90 kWhatFetchSubtitleData, 91 kWhatFetchTimedTextData, 92 kWhatSendSubtitleData, 93 kWhatSendGlobalTimedTextData, 94 kWhatSendTimedTextData, 95 kWhatChangeAVSource, 96 kWhatPollBuffering, 97 kWhatGetFormat, 98 kWhatGetSelectedTrack, 99 kWhatSelectTrack, 100 kWhatSeek, 101 kWhatReadBuffer, 102 kWhatStopWidevine, 103 kWhatStart, 104 kWhatResume, 105 kWhatSecureDecodersInstantiated, 106 }; 107 108 struct Track { 109 size_t mIndex; 110 sp<MediaSource> mSource; 111 sp<AnotherPacketSource> mPackets; 112 }; 113 114 Vector<sp<MediaSource> > mSources; 115 Track mAudioTrack; 116 int64_t mAudioTimeUs; 117 int64_t mAudioLastDequeueTimeUs; 118 Track mVideoTrack; 119 int64_t mVideoTimeUs; 120 int64_t mVideoLastDequeueTimeUs; 121 Track mSubtitleTrack; 122 Track mTimedTextTrack; 123 124 int32_t mFetchSubtitleDataGeneration; 125 int32_t mFetchTimedTextDataGeneration; 126 int64_t mDurationUs; 127 bool mAudioIsVorbis; 128 bool mIsWidevine; 129 bool mIsSecure; 130 bool mIsStreaming; 131 bool mUIDValid; 132 uid_t mUID; 133 sp<IMediaHTTPService> mHTTPService; 134 AString mUri; 135 KeyedVector<String8, String8> mUriHeaders; 136 int mFd; 137 int64_t mOffset; 138 int64_t mLength; 139 140 sp<DataSource> mDataSource; 141 sp<NuCachedSource2> mCachedSource; 142 sp<DataSource> mHttpSource; 143 sp<WVMExtractor> mWVMExtractor; 144 sp<MetaData> mFileMeta; 145 DrmManagerClient *mDrmManagerClient; 146 sp<DecryptHandle> mDecryptHandle; 147 bool mStarted; 148 bool mStopRead; 149 int64_t mBitrate; 150 int32_t mPollBufferingGeneration; 151 uint32_t mPendingReadBufferTypes; 152 bool mBuffering; 153 bool mPrepareBuffering; 154 int32_t mPrevBufferPercentage; 155 sp<ABuffer> mGlobalTimedText; 156 157 mutable Mutex mReadBufferLock; 158 159 sp<ALooper> mLooper; 160 161 void resetDataSource(); 162 163 status_t initFromDataSource(); 164 void checkDrmStatus(const sp<DataSource>& dataSource); 165 int64_t getLastReadPosition(); 166 void setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position); 167 168 void notifyPreparedAndCleanup(status_t err); 169 void onSecureDecodersInstantiated(status_t err); 170 void finishPrepareAsync(); 171 status_t startSources(); 172 173 void onGetFormatMeta(sp<AMessage> msg) const; 174 sp<MetaData> doGetFormatMeta(bool audio) const; 175 176 void onGetSelectedTrack(sp<AMessage> msg) const; 177 ssize_t doGetSelectedTrack(media_track_type type) const; 178 179 void onSelectTrack(sp<AMessage> msg); 180 status_t doSelectTrack(size_t trackIndex, bool select, int64_t timeUs); 181 182 void onSeek(sp<AMessage> msg); 183 status_t doSeek(int64_t seekTimeUs); 184 185 void onPrepareAsync(); 186 187 void fetchTextData( 188 uint32_t what, media_track_type type, 189 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 190 191 void sendGlobalTextData( 192 uint32_t what, 193 int32_t curGen, sp<AMessage> msg); 194 195 void sendTextData( 196 uint32_t what, media_track_type type, 197 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 198 199 sp<ABuffer> mediaBufferToABuffer( 200 MediaBuffer *mbuf, 201 media_track_type trackType, 202 int64_t seekTimeUs, 203 int64_t *actualTimeUs = NULL); 204 205 void postReadBuffer(media_track_type trackType); 206 void onReadBuffer(sp<AMessage> msg); 207 void readBuffer( 208 media_track_type trackType, 209 int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false); 210 211 void queueDiscontinuityIfNeeded( 212 bool seeking, bool formatChange, media_track_type trackType, Track *track); 213 214 void schedulePollBuffering(); 215 void cancelPollBuffering(); 216 void restartPollBuffering(); 217 void onPollBuffering(); 218 void notifyBufferingUpdate(int32_t percentage); 219 void startBufferingIfNecessary(); 220 void stopBufferingIfNecessary(); 221 void sendCacheStats(); 222 void ensureCacheIsFetching(); 223 224 DISALLOW_EVIL_CONSTRUCTORS(GenericSource); 225}; 226 227} // namespace android 228 229#endif // GENERIC_SOURCE_H_ 230