lavfi/idet: fix chroma subsampling with odd sizes.

12 years ago · 61b268eeda
parent 6c5bd7d785
commit 61b268eeda
1 changed files with 2 additions and 2 deletions
--- a/libavfilter/vf_idet.c
+++ b/libavfilter/vf_idet.c
@ -118,8 +118,8 @@ static void filter(AVFilterContext *ctx)
        int refs = idet->cur->linesize[i];
        if (i && i<3) {
-            w >>= idet->csp->log2_chroma_w;
+            w = FF_CEIL_RSHIFT(w, idet->csp->log2_chroma_w);
-            h >>= idet->csp->log2_chroma_h;
+            h = FF_CEIL_RSHIFT(h, idet->csp->log2_chroma_h);
        }
        for (y = 2; y < h - 2; y++) {