gecko-dev/dom/media/gmp/GMPEncryptedBufferDataImpl.cpp

133 строки
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "GMPEncryptedBufferDataImpl.h"
#include "mozilla/gmp/GMPTypes.h"
#include "MediaData.h"
namespace mozilla {
namespace gmp {
GMPEncryptedBufferDataImpl::GMPEncryptedBufferDataImpl(const CryptoSample& aCrypto)
: mKeyId(aCrypto.mKeyId)
, mIV(aCrypto.mIV)
, mClearBytes(aCrypto.mPlainSizes)
, mCipherBytes(aCrypto.mEncryptedSizes)
, mSessionIdList(aCrypto.mSessionIds)
{
}
GMPEncryptedBufferDataImpl::GMPEncryptedBufferDataImpl(const GMPDecryptionData& aData)
: mKeyId(aData.mKeyId())
, mIV(aData.mIV())
, mClearBytes(aData.mClearBytes())
, mCipherBytes(aData.mCipherBytes())
, mSessionIdList(aData.mSessionIds())
{
MOZ_ASSERT(mClearBytes.Length() == mCipherBytes.Length());
}
GMPEncryptedBufferDataImpl::~GMPEncryptedBufferDataImpl()
{
}
void
GMPEncryptedBufferDataImpl::RelinquishData(GMPDecryptionData& aData)
{
aData.mKeyId() = Move(mKeyId);
aData.mIV() = Move(mIV);
aData.mClearBytes() = Move(mClearBytes);
aData.mCipherBytes() = Move(mCipherBytes);
mSessionIdList.RelinquishData(aData.mSessionIds());
}
const uint8_t*
GMPEncryptedBufferDataImpl::KeyId() const
{
return mKeyId.Elements();
}
uint32_t
GMPEncryptedBufferDataImpl::KeyIdSize() const
{
return mKeyId.Length();
}
const uint8_t*
GMPEncryptedBufferDataImpl::IV() const
{
return mIV.Elements();
}
uint32_t
GMPEncryptedBufferDataImpl::IVSize() const
{
return mIV.Length();
}
const uint16_t*
GMPEncryptedBufferDataImpl::ClearBytes() const
{
return mClearBytes.Elements();
}
const uint32_t*
GMPEncryptedBufferDataImpl::CipherBytes() const
{
return mCipherBytes.Elements();
}
const GMPStringList*
GMPEncryptedBufferDataImpl::SessionIds() const
{
return &mSessionIdList;
}
uint32_t
GMPEncryptedBufferDataImpl::NumSubsamples() const
{
MOZ_ASSERT(mClearBytes.Length() == mCipherBytes.Length());
// Return the min of the two, to ensure there's not chance of array index
// out-of-bounds shenanigans.
return std::min<uint32_t>(mClearBytes.Length(), mCipherBytes.Length());
}
GMPStringListImpl::GMPStringListImpl(const nsTArray<nsCString>& aStrings)
: mStrings(aStrings)
{
}
const uint32_t
GMPStringListImpl::Size() const
{
return mStrings.Length();
}
void
GMPStringListImpl::StringAt(uint32_t aIndex,
const char** aOutString,
uint32_t *aOutLength) const
{
if (NS_WARN_IF(aIndex >= Size())) {
return;
}
*aOutString = mStrings[aIndex].BeginReading();
*aOutLength = mStrings[aIndex].Length();
}
void
GMPStringListImpl::RelinquishData(nsTArray<nsCString>& aStrings)
{
aStrings = Move(mStrings);
}
GMPStringListImpl::~GMPStringListImpl()
{
}
} // namespace gmp
} // namespace mozilla