Support different chroma positioning for Cb and Cr. The test is slightly shaky, so...

[movit] / ycbcr_input.frag

diff --git a/ycbcr_input.frag b/ycbcr_input.frag
index 13e44b071398b986bb2a9037f27fed2016a65645..8da8256c4b10858fe22fac7fe81b4305a3cb7868 100644 (file)
--- a/ycbcr_input.frag
+++ b/ycbcr_input.frag
@@ -10,8 +10,8 @@ vec4 FUNCNAME(vec2 tc) {
 
        vec3 ycbcr;
        ycbcr.x = texture2D(PREFIX(tex_y), tc).x;
-       ycbcr.y = texture2D(PREFIX(tex_cb), tc + PREFIX(chroma_offset)).x;
-       ycbcr.z = texture2D(PREFIX(tex_cr), tc + PREFIX(chroma_offset)).x;
+       ycbcr.y = texture2D(PREFIX(tex_cb), tc + PREFIX(cb_offset)).x;
+       ycbcr.z = texture2D(PREFIX(tex_cr), tc + PREFIX(cr_offset)).x;
 
        ycbcr -= PREFIX(offset);
        ycbcr *= PREFIX(scale);