[FFmpeg-cvslog] avfilter/vf_hqx: avoid floats

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Jun 24 02:32:37 2014 +0200| [236aa4de2a103d36b5f3381717150a6780c46697] | committer: Michael Niedermayer

avfilter/vf_hqx: avoid floats

this likely fixes fate failures

2748170880 -> 5389024880 dezicycles

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=236aa4de2a103d36b5f3381717150a6780c46697
---

 libavfilter/vf_hqx.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/libavfilter/vf_hqx.c b/libavfilter/vf_hqx.c
index ef5a0fa..e7ed9cf 100644
--- a/libavfilter/vf_hqx.c
+++ b/libavfilter/vf_hqx.c
@@ -511,12 +511,12 @@ static av_cold int init(AVFilterContext *ctx)
 
     uint32_t c;
     for (c = 0; c < FF_ARRAY_ELEMS(hqx->rgbtoyuv); c++) {
-        const uint32_t r = c >> 16 & 0xff;
-        const uint32_t g = c >>  8 & 0xff;
-        const uint32_t b = c       & 0xff;
-        const uint32_t y = (uint32_t)( 0.299*r + 0.587*g + 0.114*b);
-        const uint32_t u = (uint32_t)(-0.169*r - 0.331*g +   0.5*b) + 128;
-        const uint32_t v = (uint32_t)(   0.5*r - 0.419*g - 0.081*b) + 128;
+        const int r = c >> 16 & 0xff;
+        const int g = c >>  8 & 0xff;
+        const int b = c       & 0xff;
+        const uint32_t y = (uint32_t)(( 299*r + 587*g + 114*b)/1000);
+        const uint32_t u = (uint32_t)((-169*r - 331*g + 500*b)/1000) + 128;
+        const uint32_t v = (uint32_t)(( 500*r - 419*g -  81*b)/1000) + 128;
         hqx->rgbtoyuv[c] = (y << 16) + (u << 8) + v;
     }