gecko/media/gmp-clearkey/0.1/ClearKeyDecryptionManager.h

48 lines
1.2 KiB
C++

/* 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/. */
#ifndef __ClearKeyDecryptionManager_h__
#define __ClearKeyDecryptionManager_h__
#include <map>
#include "ClearKeyUtils.h"
#include "RefCounted.h"
class ClearKeyDecryptor;
class ClearKeyDecryptionManager : public RefCounted
{
private:
ClearKeyDecryptionManager();
~ClearKeyDecryptionManager();
static ClearKeyDecryptionManager* sInstance;
public:
static ClearKeyDecryptionManager* Get();
bool HasSeenKeyId(const KeyId& aKeyId) const;
bool HasKeyForKeyId(const KeyId& aKeyId) const;
const Key& GetDecryptionKey(const KeyId& aKeyId);
// Create a decryptor for the given KeyId if one does not already exist.
void InitKey(KeyId aKeyId, Key aKey);
void ExpectKeyId(KeyId aKeyId);
void ReleaseKeyId(KeyId aKeyId);
GMPErr Decrypt(uint8_t* aBuffer, uint32_t aBufferSize,
const GMPEncryptedBufferMetadata* aMetadata);
void Shutdown();
private:
bool IsExpectingKeyForKeyId(const KeyId& aKeyId) const;
std::map<KeyId, ClearKeyDecryptor*> mDecryptors;
};
#endif // __ClearKeyDecryptionManager_h__