readvec           262 libheif/heif_context.cc     uint16_t color = static_cast<uint16_t>(readvec(data,ptr,2));
readvec           266 libheif/heif_context.cc   m_width  = readvec(data,ptr,field_len);
readvec           267 libheif/heif_context.cc   m_height = readvec(data,ptr,field_len);