X-Git-Url: https://git.sesse.net/?p=fjl;a=blobdiff_plain;f=driver.c;h=c5ae87e3b003cc2b060ccfe3fa1571ff817a2246;hp=cda257e3c90ba023ed8b465eeedf2e1417768aff;hb=a1596fbb6a92217ff5eb57600b36a9d695ca1ae8;hpb=1cfb04470add4e31406785980e7ce14a8e9d0672

diff --git a/driver.c b/driver.c
index cda257e..c5ae87e 100644
--- a/driver.c
+++ b/driver.c
@@ -120,8 +120,6 @@ void decode_ac_coefficients(const struct huffman_table* tbl, struct bit_source*
 		possibly_refill(bits, DEHUF_AC_TABLE_BITS);
 		unsigned lookup = peek_bits(bits, DEHUF_AC_TABLE_BITS);
 		int code = tbl->ac_table_codes[lookup];
-		int length = tbl->ac_table_length[lookup];
-		int r = tbl->ac_table_skip[lookup];
 
 		assert(length == AC_DEHUF_SLOW_PATH || (length > 0 && length <= DEHUF_AC_TABLE_BITS));
 
@@ -145,6 +143,8 @@ void decode_ac_coefficients(const struct huffman_table* tbl, struct bit_source*
 
 			coeff[unzigzag[i]] = extend(read_bits(bits, s), s);
 		} else {
+			int length = tbl->ac_table_length[lookup];
+			int r = tbl->ac_table_skip[lookup];
 			assert(r >= 0);
 			i += r;
 			assert(bits->bits_available >= length);