aacdec: move prediction to separate files

1 files changed, 0 insertions, 116 deletions

diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c
index 03b39854f8..880c18b0f8 100644
--- a/libavcodec/aacdec_fixed.c
+++ b/libavcodec/aacdec_fixed.c
@@ -127,124 +127,8 @@ static const int * const tns_tmp2_map_fixed[4] = {
 };
 // @}
 
-static av_always_inline void reset_predict_state(PredictorState *ps)
-{
-    ps->r0.mant   = 0;
-    ps->r0.exp   = 0;
-    ps->r1.mant   = 0;
-    ps->r1.exp   = 0;
-    ps->cor0.mant = 0;
-    ps->cor0.exp = 0;
-    ps->cor1.mant = 0;
-    ps->cor1.exp = 0;
-    ps->var0.mant = 0x20000000;
-    ps->var0.exp = 1;
-    ps->var1.mant = 0x20000000;
-    ps->var1.exp = 1;
-}
-
 static const int exp2tab[4] = { Q31(1.0000000000/2), Q31(1.1892071150/2), Q31(1.4142135624/2), Q31(1.6817928305/2) };  // 2^0, 2^0.25, 2^0.5, 2^0.75
 
-static av_always_inline SoftFloat flt16_round(SoftFloat pf)
-{
-    SoftFloat tmp;
-    int s;
-
-    tmp.exp = pf.exp;
-    s = pf.mant >> 31;
-    tmp.mant = (pf.mant ^ s) - s;
-    tmp.mant = (tmp.mant + 0x00200000U) & 0xFFC00000U;
-    tmp.mant = (tmp.mant ^ s) - s;
-
-    return tmp;
-}
-
-static av_always_inline SoftFloat flt16_even(SoftFloat pf)
-{
-    SoftFloat tmp;
-    int s;
-
-    tmp.exp = pf.exp;
-    s = pf.mant >> 31;
-    tmp.mant = (pf.mant ^ s) - s;
-    tmp.mant = (tmp.mant + 0x001FFFFFU + (tmp.mant & 0x00400000U >> 16)) & 0xFFC00000U;
-    tmp.mant = (tmp.mant ^ s) - s;
-
-    return tmp;
-}
-
-static av_always_inline SoftFloat flt16_trunc(SoftFloat pf)
-{
-    SoftFloat pun;
-    int s;
-
-    pun.exp = pf.exp;
-    s = pf.mant >> 31;
-    pun.mant = (pf.mant ^ s) - s;
-    pun.mant = pun.mant & 0xFFC00000U;
-    pun.mant = (pun.mant ^ s) - s;
-
-    return pun;
-}
-
-static av_always_inline void predict(PredictorState *ps, int *coef,
-                                     int output_enable)
-{
-    const SoftFloat a     = { 1023410176, 0 };  // 61.0 / 64
-    const SoftFloat alpha = {  973078528, 0 };  // 29.0 / 32
-    SoftFloat e0, e1;
-    SoftFloat pv;
-    SoftFloat k1, k2;
-    SoftFloat   r0 = ps->r0,     r1 = ps->r1;
-    SoftFloat cor0 = ps->cor0, cor1 = ps->cor1;
-    SoftFloat var0 = ps->var0, var1 = ps->var1;
-    SoftFloat tmp;
-
-    if (var0.exp > 1 || (var0.exp == 1 && var0.mant > 0x20000000)) {
-        k1 = av_mul_sf(cor0, flt16_even(av_div_sf(a, var0)));
-    }
-    else {
-        k1.mant = 0;
-        k1.exp = 0;
-    }
-
-    if (var1.exp > 1 || (var1.exp == 1 && var1.mant > 0x20000000)) {
-        k2 = av_mul_sf(cor1, flt16_even(av_div_sf(a, var1)));
-    }
-    else {
-        k2.mant = 0;
-        k2.exp = 0;
-    }
-
-    tmp = av_mul_sf(k1, r0);
-    pv = flt16_round(av_add_sf(tmp, av_mul_sf(k2, r1)));
-    if (output_enable) {
-        int shift = 28 - pv.exp;
-
-        if (shift < 31) {
-            if (shift > 0) {
-                *coef += (unsigned)((pv.mant + (1 << (shift - 1))) >> shift);
-            } else
-                *coef += (unsigned)pv.mant << -shift;
-        }
-    }
-
-    e0 = av_int2sf(*coef, 2);
-    e1 = av_sub_sf(e0, tmp);
-
-    ps->cor1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor1), av_mul_sf(r1, e1)));
-    tmp = av_add_sf(av_mul_sf(r1, r1), av_mul_sf(e1, e1));
-    tmp.exp--;
-    ps->var1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var1), tmp));
-    ps->cor0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor0), av_mul_sf(r0, e0)));
-    tmp = av_add_sf(av_mul_sf(r0, r0), av_mul_sf(e0, e0));
-    tmp.exp--;
-    ps->var0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var0), tmp));
-
-    ps->r1 = flt16_trunc(av_mul_sf(a, av_sub_sf(r0, av_mul_sf(k1, e0))));
-    ps->r0 = flt16_trunc(av_mul_sf(a, e0));
-}
-
 #include "aacdec_template.c"
 
 const FFCodec ff_aac_fixed_decoder = {