diff options
| -rw-r--r-- | libavfilter/vf_hqx.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavfilter/vf_hqx.c b/libavfilter/vf_hqx.c index ef5a0fae80..e7ed9cfb99 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; } |