X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Flpc.c;h=bada368580976aa965824c350be45217fbea7baf;hb=3d8c80b611aa1e2f800dd9c8d8f350407f95c042;hp=cc3ce447256cda935e3fb20191be365895112b2a;hpb=4b0e0f31bf0f618a634dcfdca45e72cdfb0b48b5;p=ffmpeg

diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c
index cc3ce447256..bada3685809 100644
--- a/libavcodec/lpc.c
+++ b/libavcodec/lpc.c
@@ -148,6 +148,18 @@ static int estimate_best_order(double *ref, int min_order, int max_order)
     return est;
 }
 
+int ff_lpc_calc_ref_coefs(LPCContext *s,
+                          const int32_t *samples, int order, double *ref)
+{
+    double autoc[MAX_LPC_ORDER + 1];
+
+    s->lpc_apply_welch_window(samples, s->blocksize, s->windowed_samples);
+    s->lpc_compute_autocorr(s->windowed_samples, s->blocksize, order, autoc);
+    compute_ref_coefs(autoc, order, ref, NULL);
+
+    return order;
+}
+
 /**
  * Calculate LPC coefficients for multiple orders
  *
@@ -191,7 +203,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
         double var[MAX_LPC_ORDER+1], av_uninit(weight);
 
         for(pass=0; pass<lpc_passes; pass++){
-            av_init_lls(&m[pass&1], max_order);
+            avpriv_init_lls(&m[pass&1], max_order);
 
             weight=0;
             for(i=max_order; i<blocksize; i++){
@@ -200,7 +212,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
 
                 if(pass){
                     double eval, inv, rinv;
-                    eval= av_evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);
+                    eval= avpriv_evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);
                     eval= (512>>pass) + fabs(eval - var[0]);
                     inv = 1/eval;
                     rinv = sqrt(inv);
@@ -210,9 +222,9 @@ int ff_lpc_calc_coefs(LPCContext *s,
                 }else
                     weight++;
 
-                av_update_lls(&m[pass&1], var, 1.0);
+                avpriv_update_lls(&m[pass&1], var, 1.0);
             }
-            av_solve_lls(&m[pass&1], 0.001, 0);
+            avpriv_solve_lls(&m[pass&1], 0.001, 0);
         }
 
         for(i=0; i<max_order; i++){
@@ -258,7 +270,7 @@ av_cold int ff_lpc_init(LPCContext *s, int blocksize, int max_order,
     s->lpc_apply_welch_window = lpc_apply_welch_window_c;
     s->lpc_compute_autocorr   = lpc_compute_autocorr_c;
 
-    if (HAVE_MMX)
+    if (ARCH_X86)
         ff_lpc_init_x86(s);
 
     return 0;