GenericSource.h revision 2a3cc9a64330dd36e466fe5e1b634146f2d641c1
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 30struct AnotherPacketSource; 31struct ARTSPController; 32struct DataSource; 33struct IMediaHTTPService; 34struct MediaSource; 35class MediaBuffer; 36struct NuCachedSource2; 37struct WVMExtractor; 38 39struct NuPlayer::GenericSource : public NuPlayer::Source { 40 GenericSource(const sp<AMessage> ¬ify, bool uidValid, uid_t uid); 41 42 status_t setDataSource( 43 const sp<IMediaHTTPService> &httpService, 44 const char *url, 45 const KeyedVector<String8, String8> *headers); 46 47 status_t setDataSource(int fd, int64_t offset, int64_t length); 48 49 virtual void prepareAsync(); 50 51 virtual void start(); 52 53 virtual status_t feedMoreTSData(); 54 55 virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit); 56 57 virtual status_t getDuration(int64_t *durationUs); 58 virtual size_t getTrackCount() const; 59 virtual sp<AMessage> getTrackInfo(size_t trackIndex) const; 60 virtual ssize_t getSelectedTrack(media_track_type type) const; 61 virtual status_t selectTrack(size_t trackIndex, bool select); 62 virtual status_t seekTo(int64_t seekTimeUs); 63 64 virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers); 65 66protected: 67 virtual ~GenericSource(); 68 69 virtual void onMessageReceived(const sp<AMessage> &msg); 70 71 virtual sp<MetaData> getFormatMeta(bool audio); 72 73private: 74 enum { 75 kWhatPrepareAsync, 76 kWhatFetchSubtitleData, 77 kWhatFetchTimedTextData, 78 kWhatSendSubtitleData, 79 kWhatSendTimedTextData, 80 kWhatChangeAVSource, 81 kWhatPollBuffering, 82 }; 83 84 Vector<sp<MediaSource> > mSources; 85 86 struct Track { 87 size_t mIndex; 88 sp<MediaSource> mSource; 89 sp<AnotherPacketSource> mPackets; 90 }; 91 92 Track mAudioTrack; 93 Track mVideoTrack; 94 Track mSubtitleTrack; 95 Track mTimedTextTrack; 96 97 int32_t mFetchSubtitleDataGeneration; 98 int32_t mFetchTimedTextDataGeneration; 99 int64_t mDurationUs; 100 bool mAudioIsVorbis; 101 bool mIsWidevine; 102 bool mUIDValid; 103 uid_t mUID; 104 sp<IMediaHTTPService> mHTTPService; 105 AString mUri; 106 KeyedVector<String8, String8> mUriHeaders; 107 int mFd; 108 int64_t mOffset; 109 int64_t mLength; 110 111 sp<DataSource> mDataSource; 112 sp<NuCachedSource2> mCachedSource; 113 sp<WVMExtractor> mWVMExtractor; 114 String8 mContentType; 115 AString mSniffedMIME; 116 off64_t mMetaDataSize; 117 int64_t mBitrate; 118 int32_t mPollBufferingGeneration; 119 120 sp<ALooper> mLooper; 121 122 void resetDataSource(); 123 124 status_t initFromDataSource(); 125 126 status_t prefillCacheIfNecessary(); 127 128 void notifyPreparedAndCleanup(status_t err); 129 130 void onPrepareAsync(); 131 132 void fetchTextData( 133 uint32_t what, media_track_type type, 134 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 135 136 void sendTextData( 137 uint32_t what, media_track_type type, 138 int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg); 139 140 sp<ABuffer> mediaBufferToABuffer( 141 MediaBuffer *mbuf, 142 media_track_type trackType, 143 int64_t *actualTimeUs = NULL); 144 145 void readBuffer( 146 media_track_type trackType, 147 int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false); 148 149 void schedulePollBuffering(); 150 void cancelPollBuffering(); 151 void onPollBuffering(); 152 void notifyBufferingUpdate(int percentage); 153 154 DISALLOW_EVIL_CONSTRUCTORS(GenericSource); 155}; 156 157} // namespace android 158 159#endif // GENERIC_SOURCE_H_ 160