/* * Copyright (C) 2017 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "ISOSchemeInformationBox.h" #include "ISOTrackEncryptionBox.h" #include <JavaScriptCore/DataView.h> using JSC::DataView; namespace WebCore { bool ISOSchemeInformationBox::parse(DataView& view, unsigned& offset) { unsigned localOffset = offset; if (!ISOBox::parse(view, localOffset)) return false; auto schemeSpecificBoxType = ISOBox::peekBox(view, localOffset); if (!schemeSpecificBoxType) return false; if (schemeSpecificBoxType.value().first == ISOTrackEncryptionBox::boxTypeName()) { if (localOffset + schemeSpecificBoxType.value().second > offset + m_size) return false; m_schemeSpecificData = makeUnique<ISOTrackEncryptionBox>(); if (!m_schemeSpecificData->read(view, localOffset)) return false; } return true; } }