[FFmpeg-soc] [soc]: r921 - qcelp/qcelpdec.c

[reynaldo]

Author: reynaldo
Date: Fri Aug 17 20:55:15 2007
New Revision: 921

Log:
TRIVIAL

LSP to LPC conversion is wrong, spec is not clear in this regard but 
luckily enough this is a somewaht universal process. Im reviewing that 
part of the code hard, this are some minor corrections in the (hopefully)
right direction.


Modified:
   qcelp/qcelpdec.c

Modified: qcelp/qcelpdec.c
==============================================================================
--- qcelp/qcelpdec.c	(original)
+++ qcelp/qcelpdec.c	Fri Aug 17 20:55:15 2007
@@ -523,11 +523,11 @@ void qcelp_do_interpolate_lspf(qcelp_pac
 /**
  * 2.4.3.3.5-1/2
  */
-static void qcelp_lsp2paqa(float *lspf, float *pa, float *qa)
+static void qcelp_lsp2poly(float *lspf, float *pa, float *qa)
 {
     int i,j;
 
-    for(i=0; i<10; i++)
+    for(i=0; i<5; i++)
     {
         pa[i]=1.0+1.0/(i+1);
         qa[i]=1.0-1.0/(i+1);
@@ -545,10 +545,10 @@ static void qcelp_lsp2paqa(float *lspf, 
  */
 static void qcelp_lsp2lpc(AVCodecContext *avctx, float *lspf, float *lpc)
 {
-    float pa[10],qa[10];
+    float pa[5],qa[5];
     int   i;
 
-    qcelp_lsp2paqa(lspf, pa, qa);
+    qcelp_lsp2poly(lspf, pa, qa);
 
     for(i=0; i< 5; i++)
             lpc[i]=-(pa[i]+qa[i])/2.0;