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 protected: 44 virtual ~M3UParser(); 45 46 private: 47 struct Item { 48 AString mURI; 49 sp<AMessage> mMeta; 50 }; 51 52 status_t mInitCheck; 53 54 AString mBaseURI; 55 bool mIsExtM3U; 56 bool mIsVariantPlaylist; 57 bool mIsComplete; 58 bool mIsEvent; 59 60 sp<AMessage> mMeta; 61 Vector<Item> mItems; 62 63 status_t parse(const void *data, size_t size); 64 65 static status_t parseMetaData( 66 const AString &line, sp<AMessage> *meta, const char *key); 67 68 static status_t parseMetaDataDuration( 69 const AString &line, sp<AMessage> *meta, const char *key); 70 71 static status_t parseStreamInf( 72 const AString &line, sp<AMessage> *meta); 73 74 static status_t parseCipherInfo( 75 const AString &line, sp<AMessage> *meta, const AString &baseURI); 76 77 static status_t parseByteRange( 78 const AString &line, uint64_t curOffset, 79 uint64_t *length, uint64_t *offset); 80 81 static status_t ParseInt32(const char *s, int32_t *x); 82 static status_t ParseDouble(const char *s, double *x); 83 84 DISALLOW_EVIL_CONSTRUCTORS(M3UParser); 85 }; 86 87 } // namespace android 88 89 #endif // M3U_PARSER_H_ 90