1cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber/* 2cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Copyright (C) 2010 The Android Open Source Project 3cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 4cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * you may not use this file except in compliance with the License. 6cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * You may obtain a copy of the License at 7cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 8cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 10cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Unless required by applicable law or agreed to in writing, software 11cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * See the License for the specific language governing permissions and 14cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * limitations under the License. 15cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber */ 16cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 17cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#ifndef A_SESSION_DESCRIPTION_H_ 18cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 19cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#define A_SESSION_DESCRIPTION_H_ 20cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 21cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <sys/types.h> 22cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 23cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/ABase.h> 24cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <utils/KeyedVector.h> 25cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <utils/RefBase.h> 26cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <utils/Vector.h> 27cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 28cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubernamespace android { 29cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 30cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstruct AString; 31cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 32cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstruct ASessionDescription : public RefBase { 33cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber ASessionDescription(); 34cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 35cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool setTo(const void *data, size_t size); 36cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool isValid() const; 37cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 38cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber // Actually, 1 + number of tracks, as index 0 is reserved for the 39cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber // session description root-level attributes. 40cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t countTracks() const; 41cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber void getFormat(size_t index, AString *value) const; 42cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 43cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber void getFormatType( 44cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t index, unsigned long *PT, 45cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString *desc, AString *params) const; 46cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 47ef7af7fec702db2fde72b16dedf9064585e6db77Andreas Huber bool getDimensions( 48cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t index, unsigned long PT, 49cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int32_t *width, int32_t *height) const; 50cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 51cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool getDurationUs(int64_t *durationUs) const; 52cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 53cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber static void ParseFormatDesc( 54cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber const char *desc, int32_t *timescale, int32_t *numChannels); 55cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 56cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool findAttribute(size_t index, const char *key, AString *value) const; 57cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 58783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // parses strings of the form 59783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // npt := npt-time "-" npt-time? | "-" npt-time 60783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // npt-time := "now" | [0-9]+("." [0-9]*)? 61783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // 62783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // Returns true iff both "npt1" and "npt2" times were available, 63783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber // i.e. we have a fixed duration, otherwise this is live streaming. 64783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber static bool parseNTPRange(const char *s, float *npt1, float *npt2); 65783e5cd85d4bd40b1a04dfdfed256c5dcb2525ccAndreas Huber 66cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberprotected: 67cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber virtual ~ASessionDescription(); 68cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 69cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberprivate: 70cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber typedef KeyedVector<AString,AString> Attribs; 71cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 72cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool mIsValid; 73cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Vector<Attribs> mTracks; 74cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Vector<AString> mFormats; 75cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 76cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber bool parse(const void *data, size_t size); 77cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 78cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(ASessionDescription); 79cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber}; 80cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 81cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} // namespace android 82cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 83cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#endif // A_SESSION_DESCRIPTION_H_ 84