From fde5bc2c7b0d7281d77b02dab9acdcc7be6a12d0 Mon Sep 17 00:00:00 2001
From: drowe67 <drowe67@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Sun, 12 Apr 2015 02:31:09 +0000
Subject: [PATCH] genres does 1st order LPC equalisation, added stdin option to
 c2sim

git-svn-id: https://svn.code.sf.net/p/freetel/code@2115 01035d8c-6547-0410-b346-abe4f91aad63
---
 codec2-dev/src/c2sim.c       | 3 ++-
 codec2-dev/unittest/genres.c | 9 +++++----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/codec2-dev/src/c2sim.c b/codec2-dev/src/c2sim.c
index c80f9646..b653b203 100644
--- a/codec2-dev/src/c2sim.c
+++ b/codec2-dev/src/c2sim.c
@@ -333,7 +333,8 @@ int main(int argc, char *argv[])
 
     /* Input file */
 
-     if ((fin = fopen(argv[optind],"rb")) == NULL) {
+    if (strcmp(argv[optind], "-")  == 0) fin = stdin;
+    else if ((fin = fopen(argv[optind],"rb")) == NULL) {
 	fprintf(stderr, "Error opening input speech file: %s: %s.\n",
 		argv[optind], strerror(errno));
 	exit(1);
diff --git a/codec2-dev/unittest/genres.c b/codec2-dev/unittest/genres.c
index bd2e73c0..8777d332 100644
--- a/codec2-dev/unittest/genres.c
+++ b/codec2-dev/unittest/genres.c
@@ -27,6 +27,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <lpc.h>
 
 #define N 160
@@ -74,6 +75,8 @@ int main(int argc, char *argv[])
 
   while( (fread(buf,sizeof(short),N,fin)) == N) {
     frames++;
+    for(i=0; i<P; i++)
+      Sn[i] = Sn[i+N];
     for(i=0; i<N; i++)
       Sn[P+i] = (float)buf[i];
 
@@ -85,10 +88,8 @@ int main(int argc, char *argv[])
       buf[i] = (short)res[i];
     fwrite(buf,sizeof(short),N,fres);
 
-    /* update filter memory */
-
-    for(i=0; i<P; i++)
-        Sn[i] = Sn[i+N]; 
+    if (fres == stdout) fflush(stdout);
+    if (fin == stdin) fflush(stdin);
   }
 
   fclose(fin);
-- 
2.25.1