JPEG_RST0         328 jcarith.c        emit_byte(JPEG_RST0 + restart_num, cinfo);
JPEG_RST0         498 jchuff.c         emit_byte_s(state, JPEG_RST0 + restart_num, return FALSE);
JPEG_RST0         520 jchuff.c           emit_byte_e(entropy, JPEG_RST0 + restart_num);