text: //----------------------------------------------------------------------------
  //
  // TSDuck - The MPEG Transport Stream Toolkit
  // Copyright (c) 2005-2021, Thierry Lelegard
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  //
  // 1. Redistributions of source code must retain the above copyright notice,
  //    this list of conditions and the following disclaimer.
  // 2. Redistributions in binary form must reproduce the above copyright
  //    notice, this list of conditions and the following disclaimer in the
  //    documentation and/or other materials provided with the distribution.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  // THE POSSIBILITY OF SUCH DAMAGE.
  //
  //----------------------------------------------------------------------------
  
  #include "tsAbstractAVCAccessUnit.h"
  
  
  //----------------------------------------------------------------------------
  // Constructor
  //----------------------------------------------------------------------------
  
  ts::AbstractAVCAccessUnit::AbstractAVCAccessUnit() :
      SuperClass(),
      forbidden_zero_bit(0),
      nal_ref_idc(0),
      nal_unit_type(0)
  {
  }
  
  
  //----------------------------------------------------------------------------
  // Clear all values
  //----------------------------------------------------------------------------
  
  void ts::AbstractAVCAccessUnit::clear()
  {
      SuperClass::clear();
      forbidden_zero_bit = 0;
      nal_ref_idc = 0;
      nal_unit_type = 0;
  }
  
  
  //----------------------------------------------------------------------------
  // Parse the AVC access unit header.
  //----------------------------------------------------------------------------
  
  bool ts::AbstractAVCAccessUnit::parseHeader(const uint8_t*& data, size_t& size, std::initializer_list<uint32_t> )
  {
      if (data == nullptr || size < 1) {
          return false;
      }
      else {
          forbidden_zero_bit = (data[0] >> 7) & 0x01;
          nal_ref_idc = (data[0] >> 5) & 0x03;
          nal_unit_type = data[0] & 0x1F;
          data++;
          size--;
          return true;
      }
  }
  