On Fri, 1 Jul 2016, Martin Storsjö wrote:

Index 0 is 16x16, 1 is 8x8, 2 is 4x4.
---
libavcodec/vp8dsp.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/vp8dsp.h b/libavcodec/vp8dsp.h
index 4864cf7..b8a30f9 100644
--- a/libavcodec/vp8dsp.h
+++ b/libavcodec/vp8dsp.h
@@ -70,12 +70,12 @@ typedef struct VP8DSPContext {
    void (*vp8_h_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);

    /**
-     * first dimension: width>>3, height is assumed equal to width
+     * first dimension: 2-(width>>3), height is assumed equal to width

FWIW; 2-(width>>3) might give the right values, but isn't technically quite right either. The right expression would be 4-log2(width) (or 4-av_ctz(width)) - should we go with that instead?

// Martin
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