ref: 4b4241830d669436bff595a1deaa5148f9562d79
dir: /common/mp4v2/atom_ftyp.cpp/
/* * The contents of this file are subject to the Mozilla Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is MPEG4IP. * * The Initial Developer of the Original Code is Cisco Systems Inc. * Portions created by Cisco Systems Inc. are * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved. * * Contributor(s): * Dave Mackie [email protected] */ #include "mp4common.h" MP4FtypAtom::MP4FtypAtom() : MP4Atom("ftyp") { MP4StringProperty* pProp = new MP4StringProperty("majorBrand"); pProp->SetFixedLength(4); AddProperty(pProp); /* 0 */ AddProperty( /* 1 */ new MP4Integer32Property("minorVersion")); MP4Integer32Property* pCount = new MP4Integer32Property("compatibleBrandsCount"); pCount->SetImplicit(); AddProperty(pCount); /* 2 */ MP4TableProperty* pTable = new MP4TableProperty("compatibleBrands", pCount); AddProperty(pTable); /* 3 */ pProp = new MP4StringProperty("brand"); pProp->SetFixedLength(4); pTable->AddProperty(pProp); } void MP4FtypAtom::Generate() { MP4Atom::Generate(); ((MP4StringProperty*)m_pProperties[0])->SetValue("mp42"); MP4StringProperty* pBrandProperty = (MP4StringProperty*) ((MP4TableProperty*)m_pProperties[3])->GetProperty(0); ASSERT(pBrandProperty); pBrandProperty->AddValue("mp42"); pBrandProperty->AddValue("isom"); ((MP4Integer32Property*)m_pProperties[2])->IncrementValue(); ((MP4Integer32Property*)m_pProperties[2])->IncrementValue(); } void MP4FtypAtom::Read() { // table entry count computed from atom size ((MP4Integer32Property*)m_pProperties[2])->SetReadOnly(false); ((MP4Integer32Property*)m_pProperties[2])->SetValue((m_size - 8) / 4); ((MP4Integer32Property*)m_pProperties[2])->SetReadOnly(true); MP4Atom::Read(); }