ac3enc: move extract_exponents inner loop to ac3dsp

Signed-off-by: Mans Rullgard <mans@mansr.com>

1 files changed, 3 insertions, 18 deletions

diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index e0806b3081..04e8b4fb0b 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -562,28 +562,13 @@ static av_cold void exponent_init(AC3EncodeContext *s)
  */
 static void extract_exponents(AC3EncodeContext *s)
 {
-    int blk, ch, i;
+    int blk, ch;
 
     for (ch = 0; ch < s->channels; ch++) {
         for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) {
             AC3Block *block = &s->blocks[blk];
-            uint8_t *exp   = block->exp[ch];
-            int32_t *coef = block->fixed_coef[ch];
-            for (i = 0; i < AC3_MAX_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;
-                    }
-                    av_assert2(e >= 0);
-                }
-                exp[i] = e;
-            }
+            s->ac3dsp.extract_exponents(block->exp[ch], block->fixed_coef[ch],
+                                        AC3_MAX_COEFS);
         }
     }
 }