C++ (Cpp) init_dpb Examples

Example #1

File: decode.c Project: khaled777b/snaps

RetCode decoder_init()
{

  // Set default values of gdd and pdd when necessary
  memset(&pdd, 0, sizeof(pdd));
//  memset(&gdd, 0, sizeof(gdd));

  static slice_header_t dummy_sh; // a all 0-filled structure that will prevent from testing if prev_sh pointer is non null each time it is accessed !

  pdd.max_num_of_slices = 1;
  pdd.decoding_finished = 0;

  memset(&dummy_sh, 0, sizeof(dummy_sh)); // all 0 should make a good "before-first" slice
  pdd.prev_sh = &dummy_sh; // needed so that there is no need to test if the pointer is non null

  // Init CABAC tables
  cabac_init_data();

  init_dpb();

  return RET_SUCCESS;
}

Example #2

File: sei.cpp Project: jonmcdonald/jpeg_platform

/*!
 ************************************************************************
 *  \brief
 *     Interpret the Buffering period SEI message
 *  \param payload
 *     a pointer that point to the sei payload
 *  \param size
 *     the size of the sei message
 *  \param img
 *     the image pointer
 *    
 ************************************************************************
 */
void interpret_buffering_period_info( byte* payload, int size, ImageParameters *img )
{
  int seq_parameter_set_id, initial_cpb_removal_delay, initial_cpb_removal_delay_offset;
  unsigned int k;

  Bitstream* buf;
  seq_parameter_set_rbsp_t *sps;

#ifdef ESLCPP
  buf = (Bitstream*)malloc(sizeof(Bitstream));
#else
  buf = malloc(sizeof(Bitstream));
#endif
  buf->bitstream_length = size;
  buf->streamBuffer = payload;
  buf->frame_bitoffset = 0;

  UsedBits = 0;

  seq_parameter_set_id   = ue_v("SEI: seq_parameter_set_id"  , buf);

   sps = &SeqParSet[seq_parameter_set_id];
   if (active_sps != sps)
   {
     active_sps = sps;
	 init_dpb();
   }

#ifdef PRINT_BUFFERING_PERIOD_INFO
  printf("Buffering period SEI message\n");
  printf("seq_parameter_set_id   = %d\n", seq_parameter_set_id);
#endif

  if (sps->vui_seq_parameters.nal_hrd_parameters_present_flag)
  {
    for (k=0; k<sps->vui_seq_parameters.nal_hrd_parameters.cpb_cnt; k++)
    {
      initial_cpb_removal_delay        = u_v(sps->vui_seq_parameters.nal_hrd_parameters.cpb_removal_delay_length_minus1+1,
                                             "SEI: initial_cpb_removal_delay"         , buf);
      initial_cpb_removal_delay_offset = u_v(sps->vui_seq_parameters.nal_hrd_parameters.cpb_removal_delay_length_minus1+1,
                                             "SEI: initial_cpb_removal_delay_offset"  , buf);
#ifdef PRINT_BUFFERING_PERIOD_INFO
      printf("nal initial_cpb_removal_delay[%d]        = %d\n", k, initial_cpb_removal_delay);
      printf("nal initial_cpb_removal_delay_offset[%d] = %d\n", k, initial_cpb_removal_delay_offset);
#endif
    }
  }

  if (sps->vui_seq_parameters.vcl_hrd_parameters_present_flag)
  {
    for (k=0; k<sps->vui_seq_parameters.vcl_hrd_parameters.cpb_cnt; k++)
    {
      initial_cpb_removal_delay        = u_v(sps->vui_seq_parameters.vcl_hrd_parameters.cpb_removal_delay_length_minus1+1,
                                             "SEI: initial_cpb_removal_delay"         , buf);
      initial_cpb_removal_delay_offset = u_v(sps->vui_seq_parameters.vcl_hrd_parameters.cpb_removal_delay_length_minus1+1,
                                             "SEI: initial_cpb_removal_delay_offset"  , buf);
#ifdef PRINT_BUFFERING_PERIOD_INFO
      printf("vcl initial_cpb_removal_delay[%d]        = %d\n", k, initial_cpb_removal_delay);
      printf("vcl initial_cpb_removal_delay_offset[%d] = %d\n", k, initial_cpb_removal_delay_offset);
#endif
    }
  }

  free (buf);
#ifdef PRINT_BUFFERING_PERIOD_INFO
#undef PRINT_BUFFERING_PERIOD_INFO
#endif
}