fate: split off QuickTime codec FATE tests into their own file

[ffmpeg] / libavcodec / ac3dsp.c

diff --git a/libavcodec/ac3dsp.c b/libavcodec/ac3dsp.c
index de58f3ab26099588cbbbb9c8a0022b910e087281..98c73573cb2ea56d44cad85885b9813d63349041 100644 (file)
--- a/libavcodec/ac3dsp.c
+++ b/libavcodec/ac3dsp.c
@@ -131,7 +131,7 @@ static void ac3_bit_alloc_calc_bap_c(int16_t *mask, int16_t *psd,
 static void ac3_update_bap_counts_c(uint16_t mant_cnt[16], uint8_t *bap,
                                     int len)
 {
-    while (len-- >= 0)
+    while (len-- > 0)
         mant_cnt[bap[len]]++;
 }
 
@@ -164,21 +164,8 @@ static void ac3_extract_exponents_c(uint8_t *exp, int32_t *coef, int nb_coefs)
     int i;
 
     for (i = 0; i < nb_coefs; i++) {
-        int e;
         int v = abs(coef[i]);
-        if (v == 0)
-            e = 24;
-        else {
-            e = 23 - av_log2(v);
-            if (e >= 24) {
-                e = 24;
-                coef[i] = 0;
-            } else if (e < 0) {
-                e = 0;
-                coef[i] = av_clip(coef[i], -16777215, 16777215);
-            }
-        }
-        exp[i] = e;
+        exp[i] = v ? 23 - av_log2(v) : 24;
     }
 }