in libavcodec/apiexample.c.
Originally committed as revision 15520 to svn://svn.ffmpeg.org/ffmpeg/trunk
#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
/* 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);