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swscale-example: use LFG instead of random()

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Originally committed as revision 28993 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Ramiro Polla 2009-03-18 17:12:44 +00:00
parent d0ce212a7a
commit 9a034dde8b
1 changed files with 5 additions and 1 deletions
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6
libswscale/swscale-example.c
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@ -26,6 +26,7 @@
#undef HAVE_AV_CONFIG_H #undef HAVE_AV_CONFIG_H
#include "libavutil/avutil.h" #include "libavutil/avutil.h"
#include "libavutil/lfg.h"
#include "swscale.h" #include "swscale.h"
#include "swscale_internal.h" #include "swscale_internal.h"
@ -194,12 +195,15 @@ int main(int argc, char **argv){
int stride[3]={W, W, W}; int stride[3]={W, W, W};
int x, y; int x, y;
struct SwsContext *sws; struct SwsContext *sws;
AVLFG rand;
sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL); sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL);
av_lfg_init(&rand, 1);
for (y=0; y<H; y++){ for (y=0; y<H; y++){
for (x=0; x<W*4; x++){ for (x=0; x<W*4; x++){
rgb_data[ x + y*4*W]= random(); rgb_data[ x + y*4*W]= av_lfg_get(&rand);
} }
} }
sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride); sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride);