[FFmpeg-devel] [PATCH] cos_tablegen: fix the lack on M_PI

Michael Niedermayer michaelni at gmx.at
Sat Jan 5 14:16:33 CET 2013


We dont include mathematics.h as the headers get configured by config.h
for the target not the host.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
 libavcodec/cos_tablegen.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/cos_tablegen.c b/libavcodec/cos_tablegen.c
index af9391d..313a1d2 100644
--- a/libavcodec/cos_tablegen.c
+++ b/libavcodec/cos_tablegen.c
@@ -56,7 +56,7 @@ int main(int argc, char *argv[])
     printf("#include \"libavcodec/%s\"\n", do_sin ? "rdft.h" : "fft.h");
     for (i = 4; i <= BITS; i++) {
         int m = 1 << i;
-        double freq = 2*M_PI/m;
+        double freq = 2*3.14159265358979323846/m;
         printf("%s(%i) = {\n   ", do_sin ? "SINTABLE" : "COSTABLE", m);
         for (j = 0; j < m/2 - 1; j++) {
             int idx = j > m/4 ? m/2 - j : j;
-- 
1.7.9.5



More information about the ffmpeg-devel mailing list