stream_crypto.h

/*
 *  Copyright (C) 2017-2018 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.
 */

#ifndef C_API_ADDONINSTANCE_INPUTSTREAM_STREAMCRYPTO_H
#define C_API_ADDONINSTANCE_INPUTSTREAM_STREAMCRYPTO_H

#include <stdint.h>
#include <string.h>

#define STREAMCRYPTO_VERSION_LEVEL 2

#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */

  //============================================================================
  enum STREAM_CRYPTO_KEY_SYSTEM
  {
    STREAM_CRYPTO_KEY_SYSTEM_NONE = 0,

    STREAM_CRYPTO_KEY_SYSTEM_WIDEVINE,

    STREAM_CRYPTO_KEY_SYSTEM_PLAYREADY,

    STREAM_CRYPTO_KEY_SYSTEM_WISEPLAY,

    STREAM_CRYPTO_KEY_SYSTEM_CLEARKEY,

    STREAM_CRYPTO_KEY_SYSTEM_COUNT
  };
  //----------------------------------------------------------------------------

  //============================================================================
  enum STREAM_CRYPTO_FLAGS
  {
    STREAM_CRYPTO_FLAG_NONE = 0,

    STREAM_CRYPTO_FLAG_SECURE_DECODER = (1 << 0)
  };
  //----------------------------------------------------------------------------

  //============================================================================
  struct DEMUX_CRYPTO_INFO
  {
    uint16_t numSubSamples;

    uint16_t flags;

    uint16_t* clearBytes;

    uint32_t* cipherBytes;

    uint8_t iv[16];

    uint8_t kid[16];

    uint16_t mode;

    uint8_t cryptBlocks;

    uint8_t skipBlocks;
  };
  //----------------------------------------------------------------------------

  // Data to manage stream cryptography
  struct STREAM_CRYPTO_SESSION
  {
    // keysystem for encrypted media, STREAM_CRYPTO_KEY_SYSTEM_NONE for unencrypted
    // media.
    //
    // See STREAM_CRYPTO_KEY_SYSTEM for available options.
    enum STREAM_CRYPTO_KEY_SYSTEM keySystem;

    // Flags to use special conditions, see STREAM_CRYPTO_FLAGS for available flags.
    uint8_t flags;

    // The crypto session key id.
    char sessionId[256];
  };
  //----------------------------------------------------------------------------

#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */

#endif /* !C_API_ADDONINSTANCE_INPUTSTREAM_STREAMCRYPTO_H */