add_new_image 1410 libheif-1.3.2/libheif/heif_context.cc heif_item_id image_id = m_heif_file->add_new_image("hvc1"); add_new_image 1478 libheif-1.3.2/libheif/heif_context.cc heif_item_id alpha_image_id = m_heif_context->m_heif_file->add_new_image("hvc1"); add_new_image 101 libheif-1.3.2/libheif/heif_file.h heif_item_id add_new_image(const char* item_type);