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/*
* Copyright (C) 2017-2023 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 "ISOProtectionSchemeInfoBox.h"
#include "ISOSchemeInformationBox.h"
#include "ISOSchemeTypeBox.h"
#include <JavaScriptCore/DataView.h>
using JSC::DataView;
namespace WebCore {
ISOProtectionSchemeInfoBox::ISOProtectionSchemeInfoBox() = default;
ISOProtectionSchemeInfoBox::~ISOProtectionSchemeInfoBox() = default;
bool ISOProtectionSchemeInfoBox::parse(DataView& view, unsigned& offset)
{
unsigned localOffset = offset;
if (!ISOBox::parse(view, localOffset))
return false;
if (!m_originalFormatBox.read(view, localOffset))
return false;
if (localOffset - offset == m_size) {
offset = localOffset;
return true;
}
auto optionalBoxType = ISOBox::peekBox(view, localOffset);
if (!optionalBoxType)
return false;
if (optionalBoxType.value().first == ISOSchemeTypeBox::boxTypeName()) {
m_schemeTypeBox = makeUnique<ISOSchemeTypeBox>();
if (!m_schemeTypeBox->read(view, localOffset))
return false;
if (localOffset - offset == m_size) {
offset = localOffset;
return true;
}
optionalBoxType = ISOBox::peekBox(view, localOffset);
if (!optionalBoxType)
return false;
}
if (optionalBoxType.value().first == ISOSchemeInformationBox::boxTypeName()) {
m_schemeInformationBox = makeUnique<ISOSchemeInformationBox>();
if (!m_schemeInformationBox->read(view, localOffset))
return false;
if (localOffset - offset != m_size)
return false;
}
offset = localOffset;
return true;
}
}
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