add casts to silence gcc warnings

[ffmpeg] / libavcodec / jrevdct.c

diff --git a/libavcodec/jrevdct.c b/libavcodec/jrevdct.c
index d9612ebd8224b58e10d810b2f1f8b62fd05aaed8..3096b0b2eb8c6ad7d6fc7d152bf6d9f79f707bad 100644 (file)
--- a/libavcodec/jrevdct.c
+++ b/libavcodec/jrevdct.c
@@ -60,7 +60,7 @@
  */
 
 /**
- * @file jrevdct.c
+ * @file libavcodec/jrevdct.c
  * Independent JPEG Group's LLM idct.
  */
 
@@ -692,7 +692,6 @@ void j_rev_dct(DCTBLOCK data)
                     tmp3 += z1 + z4;
                 } else {
                     /* d1 == 0, d3 != 0, d5 != 0, d7 != 0 */
-                    z1 = d7;
                     z2 = d5 + d3;
                     z3 = d7 + d3;
                     z5 = MULTIPLY(z3 + d5, FIX_1_175875602);
@@ -717,7 +716,6 @@ void j_rev_dct(DCTBLOCK data)
                 if (d1) {
                     /* d1 != 0, d3 == 0, d5 != 0, d7 != 0 */
                     z1 = d7 + d1;
-                    z2 = d5;
                     z3 = d7;
                     z4 = d5 + d1;
                     z5 = MULTIPLY(z3 + z4, FIX_1_175875602);