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authorJustin Ruggles <justin.ruggles@gmail.com>2011-02-02 18:23:59 +0000
committerMichael Niedermayer <michaelni@gmx.at>2011-02-04 03:08:10 +0100
commit1003022668d755fe1015a7873efa32cfb47fe849 (patch)
tree0c8b1bd9fb6c93028df9e044f2cb285d35d8e12b /libavcodec
parent057f3d2763ee72e9c2f4e30bd2cd5e3c0ad4d431 (diff)
ac3enc: Change EXP_DIFF_THRESHOLD to 500.
This patch changes the exponent difference threshold in the exponent strategy decision function of the AC-3 encoder. I tested lowering in increments of 100. From 1000 down to 500 generally increased in quality with each step, but 400 was generally much worse. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit c3beafa0f14fd81ab43083f61872cbd5426647cf)
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/ac3enc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index ed7a171ac7..e41a0aec65 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -434,7 +434,7 @@ static void extract_exponents(AC3EncodeContext *s)
* Exponent Difference Threshold.
* New exponents are sent if their SAD exceed this number.
*/
-#define EXP_DIFF_THRESHOLD 1000
+#define EXP_DIFF_THRESHOLD 500
/**