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/** \file     SEI.cpp
    \brief    helper functions for SEI handling
*/

#include "CommonDef.h"
#include "SEI.h"

//Table D-7 Meaning of camera iso sensitivity indicator and exposure index rating indicator
Int  Table_exp_indicator[32] = {0, 10, 12, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 6400, 8000, -1};

SEIMessages getSeisByType(SEIMessages &seiList, SEI::PayloadType seiType)
{
  SEIMessages result;

  for (SEIMessages::iterator it=seiList.begin(); it!=seiList.end(); it++)
  {
    if ((*it)->payloadType() == seiType)
    {
      result.push_back(*it);
    }
  }
  return result;
}

SEIMessages extractSeisByType(SEIMessages &seiList, SEI::PayloadType seiType)
{
  SEIMessages result;

  SEIMessages::iterator it=seiList.begin();
  while ( it!=seiList.end() )
  {
    if ((*it)->payloadType() == seiType)
    {
      result.push_back(*it);
      it = seiList.erase(it);
    }
    else
    {
      it++;
    }
  }
  return result;
}


Void deleteSEIs (SEIMessages &seiList)
{
  for (SEIMessages::iterator it=seiList.begin(); it!=seiList.end(); it++)
  {
    delete (*it);
  }
  seiList.clear();
}


// Static member
const char *SEI::getSEIMessageString(SEI::PayloadType payloadType)
{
  switch (payloadType)
  {
    case SEI::BUFFERING_PERIOD:                     return "Buffering period";
    case SEI::PICTURE_TIMING:                       return "Picture timing";
    case SEI::PAN_SCAN_RECT:                        return "Pan-scan rectangle";                   // not currently decoded
    case SEI::FILLER_PAYLOAD:                       return "Filler payload";                       // not currently decoded
    case SEI::USER_DATA_REGISTERED_ITU_T_T35:       return "User data registered";                 // not currently decoded
    case SEI::USER_DATA_UNREGISTERED:               return "User data unregistered";
    case SEI::RECOVERY_POINT:                       return "Recovery point";
    case SEI::SCENE_INFO:                           return "Scene information";                    // not currently decoded
    case SEI::FULL_FRAME_SNAPSHOT:                  return "Picture snapshot";                     // not currently decoded
    case SEI::PROGRESSIVE_REFINEMENT_SEGMENT_START: return "Progressive refinement segment start"; // not currently decoded
    case SEI::PROGRESSIVE_REFINEMENT_SEGMENT_END:   return "Progressive refinement segment end";   // not currently decoded
    case SEI::FILM_GRAIN_CHARACTERISTICS:           return "Film grain characteristics";           // not currently decoded
    case SEI::POST_FILTER_HINT:                     return "Post filter hint";                     // not currently decoded
    case SEI::TONE_MAPPING_INFO:                    return "Tone mapping information";
    case SEI::KNEE_FUNCTION_INFO:                   return "Knee function information";
    case SEI::FRAME_PACKING:                        return "Frame packing arrangement";
    case SEI::DISPLAY_ORIENTATION:                  return "Display orientation";
    case SEI::SOP_DESCRIPTION:                      return "Structure of pictures information";
    case SEI::ACTIVE_PARAMETER_SETS:                return "Active parameter sets";
    case SEI::DECODING_UNIT_INFO:                   return "Decoding unit information";
    case SEI::TEMPORAL_LEVEL0_INDEX:                return "Temporal sub-layer zero index";
    case SEI::DECODED_PICTURE_HASH:                 return "Decoded picture hash";
    case SEI::SCALABLE_NESTING:                     return "Scalable nesting";
    case SEI::REGION_REFRESH_INFO:                  return "Region refresh information";
    case SEI::NO_DISPLAY:                           return "No display";
    case SEI::TIME_CODE:                            return "Time code";
    case SEI::MASTERING_DISPLAY_COLOUR_VOLUME:      return "Mastering display colour volume";
    case SEI::SEGM_RECT_FRAME_PACKING:              return "Segmented rectangular frame packing arrangement";
    case SEI::TEMP_MOTION_CONSTRAINED_TILE_SETS:    return "Temporal motion constrained tile sets";
    case SEI::CHROMA_SAMPLING_FILTER_HINT:          return "Chroma sampling filter hint";
    default:                                        return "Unknown";
  }
}
