*/
/**
- * @file ac3dec_data.c
+ * @file libavcodec/ac3dec_data.c
* tables taken directly from the AC-3 spec.
*/
/**
* 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] = {
{ 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,