From: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Date: Thu, 2 Oct 2008 16:29:15 +0000 (+0000)
Subject: Use M_PI from libavutil/mathematics.h instead of defining PI ourselves
X-Git-Tag: v0.5~2305
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14660b0814fcd080daadf75ddbd0555f36558064;p=platform%2Fupstream%2Flibav.git

Use M_PI from libavutil/mathematics.h instead of defining PI ourselves
in libavcodec/apiexample.c.

Originally committed as revision 15520 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/apiexample.c b/libavcodec/apiexample.c
index 793cfaa..11cc155 100644
--- a/libavcodec/apiexample.c
+++ b/libavcodec/apiexample.c
@@ -30,15 +30,13 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <math.h>
-
-#define PI 3.14159265358979323846
 
 #ifdef HAVE_AV_CONFIG_H
 #undef HAVE_AV_CONFIG_H
 #endif
 
 #include "avcodec.h"
+#include "libavutil/mathematics.h"
 
 #define INBUF_SIZE 4096
 
@@ -91,7 +89,7 @@ void audio_encode_example(const char *filename)
 
     /* encode a single tone sound */
     t = 0;
-    tincr = 2 * PI * 440.0 / c->sample_rate;
+    tincr = 2 * M_PI * 440.0 / c->sample_rate;
     for(i=0;i<200;i++) {
         for(j=0;j<frame_size;j++) {
             samples[2*j] = (int)(sin(t) * 10000);