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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include <inttypes.h>
#include <string.h>
//CryptoSession is usually obtained once per stream, but could change if an key expires
enum CryptoSessionSystem : uint8_t
{
CRYPTO_SESSION_SYSTEM_NONE,
CRYPTO_SESSION_SYSTEM_WIDEVINE,
CRYPTO_SESSION_SYSTEM_PLAYREADY,
CRYPTO_SESSION_SYSTEM_WISEPLAY,
};
struct DemuxCryptoSession
{
DemuxCryptoSession(const CryptoSessionSystem sys, const uint16_t sSize, const char *sData, const uint8_t flags)
: sessionId(new char[sSize])
, sessionIdSize(sSize)
, keySystem(sys)
, flags(flags)
{
memcpy(sessionId, sData, sSize);
};
~DemuxCryptoSession()
{
delete[] sessionId;
}
bool operator == (const DemuxCryptoSession &other) const
{
return sessionIdSize == other.sessionIdSize &&
keySystem == other.keySystem &&
memcmp(sessionId, other.sessionId, sessionIdSize) == 0;
};
// encryped stream infos
char * sessionId;
uint16_t sessionIdSize;
CryptoSessionSystem keySystem;
static const uint8_t FLAG_SECURE_DECODER = 1;
uint8_t flags;
private:
DemuxCryptoSession(const DemuxCryptoSession&) = delete;
DemuxCryptoSession& operator=(const DemuxCryptoSession&) = delete;
};
//CryptoInfo stores the information to decrypt a sample
struct DemuxCryptoInfo
{
explicit DemuxCryptoInfo(const unsigned int numSubs)
: numSubSamples(numSubs)
, flags(0)
, clearBytes(new uint16_t[numSubs])
, cipherBytes(new uint32_t[numSubs])
{};
~DemuxCryptoInfo()
{
delete[] clearBytes;
delete[] cipherBytes;
}
uint16_t numSubSamples; //number of subsamples
uint16_t flags; //flags for later use
uint16_t *clearBytes; // numSubSamples uint16_t's wich define the size of clear size of a subsample
uint32_t *cipherBytes; // numSubSamples uint32_t's wich define the size of cipher size of a subsample
uint8_t iv[16]; // initialization vector
uint8_t kid[16]; // key id
private:
DemuxCryptoInfo(const DemuxCryptoInfo&) = delete;
DemuxCryptoInfo& operator=(const DemuxCryptoInfo&) = delete;
};
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