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 <media/mediaplayer.h> 25 #include <utils/Vector.h> 26 27 namespace android { 28 29 struct M3UParser : public RefBase { 30 M3UParser(const char *baseURI, const void *data, size_t size); 31 32 status_t initCheck() const; 33 34 bool isExtM3U() const; 35 bool isVariantPlaylist() const; 36 bool isComplete() const; 37 bool isEvent() const; 38 size_t getDiscontinuitySeq() const; 39 40 sp<AMessage> meta(); 41 42 size_t size(); 43 bool itemAt(size_t index, AString *uri, sp<AMessage> *meta = NULL); 44 45 void pickRandomMediaItems(); 46 status_t selectTrack(size_t index, bool select); 47 size_t getTrackCount() const; 48 sp<AMessage> getTrackInfo(size_t index) const; 49 ssize_t getSelectedIndex() const; 50 ssize_t getSelectedTrack(media_track_type /* type */) const; 51 52 bool getTypeURI(size_t index, const char *key, AString *uri) const; 53 54 protected: 55 virtual ~M3UParser(); 56 57 private: 58 struct MediaGroup; 59 60 struct Item { 61 AString mURI; 62 sp<AMessage> mMeta; 63 }; 64 65 status_t mInitCheck; 66 67 AString mBaseURI; 68 bool mIsExtM3U; 69 bool mIsVariantPlaylist; 70 bool mIsComplete; 71 bool mIsEvent; 72 size_t mDiscontinuitySeq; 73 74 sp<AMessage> mMeta; 75 Vector<Item> mItems; 76 ssize_t mSelectedIndex; 77 78 // Media groups keyed by group ID. 79 KeyedVector<AString, sp<MediaGroup> > mMediaGroups; 80 81 status_t parse(const void *data, size_t size); 82 83 static status_t parseMetaData( 84 const AString &line, sp<AMessage> *meta, const char *key); 85 86 static status_t parseMetaDataDuration( 87 const AString &line, sp<AMessage> *meta, const char *key); 88 89 status_t parseStreamInf( 90 const AString &line, sp<AMessage> *meta) const; 91 92 static status_t parseCipherInfo( 93 const AString &line, sp<AMessage> *meta, const AString &baseURI); 94 95 static status_t parseByteRange( 96 const AString &line, uint64_t curOffset, 97 uint64_t *length, uint64_t *offset); 98 99 status_t parseMedia(const AString &line); 100 101 static status_t parseDiscontinuitySequence(const AString &line, size_t *seq); 102 103 static status_t ParseInt32(const char *s, int32_t *x); 104 static status_t ParseDouble(const char *s, double *x); 105 106 static bool isQuotedString(const AString &str); 107 static AString unquoteString(const AString &str); 108 static bool codecIsType(const AString &codec, const char *type); 109 110 DISALLOW_EVIL_CONSTRUCTORS(M3UParser); 111 }; 112 113 } // namespace android 114 115 #endif // M3U_PARSER_H_ 116
