GenericSource.h revision 17f6dd64cd749f4e38e12b672b551047f4cbe9b4
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; 34struct DataSource; 35struct IMediaHTTPService; 36struct MediaSource; 37class MediaBuffer; 38struct NuCachedSource2; 39struct WVMExtractor; 40 41struct NuPlayer::GenericSource : public NuPlayer::Source { 42 GenericSource(const sp<AMessage> ¬ify, bool uidValid, uid_t uid); 43 44 status_t setDataSource( 45 const sp<IMediaHTTPService> &httpService, 46 const char *url, 47 const KeyedVector<String8, String8> *headers); 48 49 status_t setDataSource(int fd, int64_t offset, int64_t length); 50 51 virtual void prepareAsync(); 52 53 virtual void start(); 54 virtual void stop(); 55 virtual void pause(); 56 virtual void resume(); 57 58 virtual status_t feedMoreTSData(); 59 60 virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit); 61 62 virtual status_t getDuration(int64_t *durationUs); 63 virtual size_t getTrackCount() const; 64 virtual sp<AMessage> getTrackInfo(size_t trackIndex) const; 65 virtual ssize_t getSelectedTrack(media_track_type type) const; 66 virtual status_t selectTrack(size_t trackIndex, bool select); 67 virtual status_t seekTo(int64_t seekTimeUs); 68 69 virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers); 70 71protected: 72 virtual ~GenericSource(); 73 74 virtual void onMessageReceived(const sp<AMessage> &msg); 75 76 virtual sp<MetaData> getFormatMeta(bool audio); 77 78private: 79 enum { 80 kWhatPrepareAsync, 81 kWhatFetchSubtitleData, 82 kWhatFetchTimedTextData, 83 kWhatSendSubtitleData, 84 kWhatSendTimedTextData, 85 kWhatChangeAVSource, 86 kWhatPollBuffering, 87 kWhatGetFormat, 88 kWhatGetSelectedTrack, 89 kWhatSelectTrack, 90 kWhatSeek, 91 kWhatReadBuffer, 92 }; 93 94 Vector<sp<MediaSource> > mSources; 95 96 struct Track { 97 size_t mIndex; 98 sp<MediaSource> mSource; 99 sp<AnotherPacketSource> mPackets; 100 }; 101 102 Track mAudioTrack; 103 int64_t mAudioTimeUs; 104 Track mVideoTrack; 105 int64_t mVideoTimeUs; 106 Track mSubtitleTrack; 107 Track mTimedTextTrack; 108 109 int32_t mFetchSubtitleDataGeneration; 110 int32_t mFetchTimedTextDataGeneration; 111 int64_t mDurationUs; 112 bool mAudioIsVorbis; 113 bool mIsWidevine; 114 bool mUIDValid; 115 uid_t mUID; 116 sp<IMediaHTTPService> mHTTPService; 117 AString mUri; 118 KeyedVector<String8, String8> mUriHeaders; 119 int mFd; 120 int64_t mOffset; 121 int64_t mLength; 122 123 sp<DataSource> mDataSource; 124 sp<NuCachedSource2> mCachedSource; 125 sp<WVMExtractor> mWVMExtractor; 126 DrmManagerClient *mDrmManagerClient; 127 sp<DecryptHandle> mDecryptHandle; 128 bool mStarted; 129 String8 mContentType; 130 AString mSniffedMIME; 131 off64_t mMetaDataSize; 132 int64_t mBitrate; 133 int32_t mPollBufferingGeneration; 134 135 sp<ALooper> mLooper; 136 137 void resetDataSource(); 138 139 status_t initFromDataSource(); 140 void checkDrmStatus(const sp<DataSource>& dataSource); 141 int64_t getLastReadPosition(); 142 void setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position); 143 144 status_t prefillCacheIfNecessary(); 145 146 void notifyPreparedAndCleanup(status_t err); 147 148 void onGetFormatMeta(sp<AMessage> msg) const; 149 sp<MetaData> doGetFormatMeta(bool audio) const; 150 151 void onGetSelectedTrack(sp<AMessage> msg) const; 152 ssize_t doGetSelectedTrack(media_track_type type) const; 153 154 void onSelectTrack(sp<AMessage> msg); 155 status_t doSelectTrack(size_t trackIndex, bool select); 156 157 void onSeek(sp<AMessage> msg); 158 status_t doSeek(int64_t seekTimeUs); 159 160 void onPrepareAsync(); 161 162 void fetchTextData( 163 uint32_t what, media_track_type type, 164 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 165 166 void sendTextData( 167 uint32_t what, media_track_type type, 168 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 169 170 sp<ABuffer> mediaBufferToABuffer( 171 MediaBuffer *mbuf, 172 media_track_type trackType, 173 int64_t *actualTimeUs = NULL); 174 175 void postReadBuffer(media_track_type trackType); 176 void onReadBuffer(sp<AMessage> msg); 177 void readBuffer( 178 media_track_type trackType, 179 int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false); 180 181 void schedulePollBuffering(); 182 void cancelPollBuffering(); 183 void onPollBuffering(); 184 void notifyBufferingUpdate(int percentage); 185 186 DISALLOW_EVIL_CONSTRUCTORS(GenericSource); 187}; 188 189} // namespace android 190 191#endif // GENERIC_SOURCE_H_ 192