X-Git-Url: http://git.cinelerra-gg.org/git/?p=goodguy%2Fhistory.git;a=blobdiff_plain;f=cinelerra-5.0%2Fplugins%2Fgamma%2Fgamma.C;h=4c66a8ff26c23b1977fe05a258ba3e1ce6258eaa;hp=7e029f7ff8aceaa1042ba4eaa42914c39be7180b;hb=1784ebd93b6c278a5205f040b5b40d8bdd79ed8a;hpb=748ee792315fb16950b10d231acaa4757fe58084

diff --git a/cinelerra-5.0/plugins/gamma/gamma.C b/cinelerra-5.0/plugins/gamma/gamma.C
index 7e029f7f..4c66a8ff 100644
--- a/cinelerra-5.0/plugins/gamma/gamma.C
+++ b/cinelerra-5.0/plugins/gamma/gamma.C
@@ -182,9 +182,12 @@ void GammaUnit::process_package(LoadPackage *package)
 				break;
 			case BC_YUVA8888:
 				HISTOGRAM_HEAD(unsigned char)
-				y = (float)row[0] / 0xff;
-				u = (float)row[1] / 0xff;
-				v = (float)row[2] / 0xff;
+				y = row[0];
+				u = row[1];
+				v = row[2];
+				y /= 0xff;
+				u = (float)((u - 0x80) / 0xff);
+				v = (float)((v - 0x80) / 0xff);
 				YUV::yuv_to_rgb_f(r, g, b, y, u, v);
 				HISTOGRAM_TAIL(4)
 				break;