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 M3U_PARSER_H_ 18 19 #define M3U_PARSER_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <media/stagefright/foundation/AMessage.h> 23 #include <media/stagefright/foundation/AString.h> 24 #include <utils/Vector.h> 25 26 namespace android { 27 28 struct M3UParser : public RefBase { 29 M3UParser(const char *baseURI, const void *data, size_t size); 30 31 status_t initCheck() const; 32 33 bool isExtM3U() const; 34 bool isVariantPlaylist() const; 35 bool isComplete() const; 36 bool isEvent() const; 37 38 sp<AMessage> meta(); 39 40 size_t size(); 41 bool itemAt(size_t index, AString *uri, sp<AMessage> *meta = NULL); 42 43 void pickRandomMediaItems(); 44 status_t selectTrack(size_t index, bool select); 45 status_t getTrackInfo(Parcel* reply) const; 46 ssize_t getSelectedIndex() const; 47 48 bool getAudioURI(size_t index, AString *uri) const; 49 bool getVideoURI(size_t index, AString *uri) const; 50 bool getSubtitleURI(size_t index, AString *uri) const; 51 52 protected: 53 virtual ~M3UParser(); 54 55 private: 56 struct MediaGroup; 57 58 struct Item { 59 AString mURI; 60 sp<AMessage> mMeta; 61 }; 62 63 status_t mInitCheck; 64 65 AString mBaseURI; 66 bool mIsExtM3U; 67 bool mIsVariantPlaylist; 68 bool mIsComplete; 69 bool mIsEvent; 70 71 sp<AMessage> mMeta; 72 Vector<Item> mItems; 73 ssize_t mSelectedIndex; 74 75 // Media groups keyed by group ID. 76 KeyedVector<AString, sp<MediaGroup> > mMediaGroups; 77 78 status_t parse(const void *data, size_t size); 79 80 static status_t parseMetaData( 81 const AString &line, sp<AMessage> *meta, const char *key); 82 83 static status_t parseMetaDataDuration( 84 const AString &line, sp<AMessage> *meta, const char *key); 85 86 status_t parseStreamInf( 87 const AString &line, sp<AMessage> *meta) const; 88 89 static status_t parseCipherInfo( 90 const AString &line, sp<AMessage> *meta, const AString &baseURI); 91 92 static status_t parseByteRange( 93 const AString &line, uint64_t curOffset, 94 uint64_t *length, uint64_t *offset); 95 96 status_t parseMedia(const AString &line); 97 98 bool getTypeURI(size_t index, const char *key, AString *uri) const; 99 100 static status_t ParseInt32(const char *s, int32_t *x); 101 static status_t ParseDouble(const char *s, double *x); 102 103 DISALLOW_EVIL_CONSTRUCTORS(M3UParser); 104 }; 105 106 } // namespace android 107 108 #endif // M3U_PARSER_H_ 109
