typo in the mail, the 4am commit is always the worst

[ffmpeg] / libavcodec / ac3dec_data.c

diff --git a/libavcodec/ac3dec_data.c b/libavcodec/ac3dec_data.c
index a04bbc0c53e16e4ff44e2111e62534b21853c93d..2a3719ea0746dfeb146540bfed4bf89967ed3640 100644 (file)
--- a/libavcodec/ac3dec_data.c
+++ b/libavcodec/ac3dec_data.c
@@ -20,7 +20,7 @@
  */
 
 /**
- * @file ac3dec_data.c
+ * @file libavcodec/ac3dec_data.c
  * tables taken directly from the AC-3 spec.
  */
 
@@ -87,18 +87,19 @@ const int16_t ff_eac3_gaq_remap_2_4_a[9][2] = {
 /**
  * Table E3.6, Gk=2 & Gk=4, B
  * Large mantissa inverse quantization, negative mantissa remapping offsets
+ * Table values from the spec are right-shifted by 8 to simplify calculations.
  * ff_eac3_gaq_remap_3_4_b[hebap-8][Gk=2,4]
  */
-const int16_t ff_eac3_gaq_remap_2_4_b[9][2] = {
-    {  -5461, -1170},
-    { -11703, -4915},
-    { -14199, -6606},
-    { -15327, -7412},
-    { -15864, -7805},
-    { -16126, -7999},
-    { -16255, -8096},
-    { -16320, -8144},
-    { -16352, -8168}
+const int8_t ff_eac3_gaq_remap_2_4_b[9][2] = {
+    { -22,  -5 },
+    { -46, -20 },
+    { -56, -26 },
+    { -60, -29 },
+    { -62, -31 },
+    { -63, -32 },
+    { -64, -32 },
+    { -64, -32 },
+    { -64, -32 },
 };
 
 static const int16_t vq_hebap1[4][6] = {
@@ -1071,7 +1072,7 @@ static const int16_t vq_hebap7[512][6] = {
 {   3231,   -3284,   27336,    4174,   -1683,     497},
 };
 
-const int16_t (*ff_eac3_vq_hebap[8])[6] = {
+const int16_t (* const ff_eac3_mantissa_vq[8])[6] = {
     NULL,
     vq_hebap1,
     vq_hebap2,