Line data    Source code

       1              : /*
       2              :  * Copyright (C) 2022 Sky UK
       3              :  *
       4              :  * This library is free software; you can redistribute it and/or
       5              :  * modify it under the terms of the GNU Lesser General Public
       6              :  * License as published by the Free Software Foundation;
       7              :  * version 2.1 of the License.
       8              :  *
       9              :  * This library is distributed in the hope that it will be useful,
      10              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12              :  * Lesser General Public License for more details.
      13              :  *
      14              :  * You should have received a copy of the GNU Lesser General Public
      15              :  * License along with this library; if not, write to the Free Software
      16              :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
      17              :  */
      18              : 
      19              : #pragma once
      20              : #include <MediaCommon.h>
      21              : #include <gst/gst.h>
      22              : #include <gst/gstprotection.h>
      23              : 
      24              : #include <stdint.h>
      25              : #include <vector>
      26              : 
      27              : struct BufferProtectionMetadata
      28              : {
      29           19 :     BufferProtectionMetadata() : encrypted(false) {}
      30              : 
      31              :     bool encrypted{false};
      32              :     int mediaKeySessionId{-1};
      33              :     std::vector<uint8_t> iv;
      34              :     std::vector<uint8_t> kid;
      35              :     // vector of bytesOfClearData, bytesOfEncryptedData
      36              :     std::vector<std::pair<uint32_t, uint32_t>> subsamples;
      37              :     uint32_t initWithLast15{0};
      38              : 
      39              :     // Encryption scheme
      40              :     firebolt::rialto::CipherMode cipherMode{firebolt::rialto::CipherMode::UNKNOWN};
      41              :     uint32_t cryptBlocks{0};
      42              :     uint32_t skipBlocks{0};
      43              :     bool encryptionPatternSet{false};
      44              : };
      45              : 
      46              : void ProcessProtectionMetadata(GstBuffer *buffer, BufferProtectionMetadata &metadata);