SCAN_HORIZ       1202 libavcodec/hevc_cabac.c     case SCAN_HORIZ:
SCAN_HORIZ       1107 libavcodec/hevcdec.c                 scan_idx = SCAN_HORIZ;
SCAN_HORIZ       1115 libavcodec/hevcdec.c                 scan_idx_c = SCAN_HORIZ;