зеркало из https://github.com/mozilla/gecko-dev.git
57 строки
1.3 KiB
C++
57 строки
1.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef SINF_PARSER_H_
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#define SINF_PARSER_H_
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#include "mozilla/ResultExtensions.h"
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#include "Atom.h"
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#include "AtomType.h"
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#include "nsTArray.h"
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namespace mozilla {
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class Box;
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class Sinf : public Atom {
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public:
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Sinf()
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: mDefaultIVSize(0),
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mDefaultEncryptionType(),
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mDefaultCryptByteBlock(0),
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mDefaultSkipByteBlock(0) {}
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explicit Sinf(Box& aBox);
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bool IsValid() override {
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return !!mDefaultEncryptionType && // Should have an encryption scheme
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(mDefaultIVSize > 0 || // and either a default IV size
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mDefaultConstantIV.Length() > 0); // or a constant IV.
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}
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uint8_t mDefaultIVSize;
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AtomType mDefaultEncryptionType;
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uint8_t mDefaultKeyID[16];
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uint8_t mDefaultCryptByteBlock;
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uint8_t mDefaultSkipByteBlock;
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CopyableTArray<uint8_t> mDefaultConstantIV;
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};
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class SinfParser {
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public:
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explicit SinfParser(Box& aBox);
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Sinf& GetSinf() { return mSinf; }
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private:
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Result<Ok, nsresult> ParseSchm(Box& aBox);
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Result<Ok, nsresult> ParseSchi(Box& aBox);
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Result<Ok, nsresult> ParseTenc(Box& aBox);
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Sinf mSinf;
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};
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} // namespace mozilla
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#endif // SINF_PARSER_H_
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