X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-realmedia%2Fsrc%2Fcodecs%2Frv60dsp.rs;h=41d46b726ac54a26b1452e1e466bc647f8ad3d6f;hb=fc85bd903dd8d91721caf436a0dcb77aaa2d1803;hp=3a90123f44d9571a24acc747e43d530385bfdac3;hpb=a15d97ad1e674adeebbc73f36aed9cf826d4af31;p=nihav.git

diff --git a/nihav-realmedia/src/codecs/rv60dsp.rs b/nihav-realmedia/src/codecs/rv60dsp.rs
index 3a90123..41d46b7 100644
--- a/nihav-realmedia/src/codecs/rv60dsp.rs
+++ b/nihav-realmedia/src/codecs/rv60dsp.rs
@@ -110,10 +110,12 @@ fn chroma_mc(dst: &mut [u8], mut didx: usize, dstride: usize, src: &[u8], mut si
         return;
     }
     if (x > 0) && (y > 0) {
-        let a = ((4 - x) * (4 - y)) as u16;
-        let b = ((    x) * (4 - y)) as u16;
-        let c = ((4 - x) * (    y)) as u16;
-        let d = ((    x) * (    y)) as u16;
+        // 3,3 case is the same as 3,2 for some reason
+        let ymod = if (x == 3) && (y == 3) { 2 } else { y };
+        let a = ((4 - x) * (4 - ymod)) as u16;
+        let b = ((    x) * (4 - ymod)) as u16;
+        let c = ((4 - x) * (    ymod)) as u16;
+        let d = ((    x) * (    ymod)) as u16;
         for _ in 0..h {
             for x in 0..w {
                 dst[didx + x] = ((a * (src[sidx + x] as u16)
@@ -152,7 +154,7 @@ macro_rules! diff{
         )
 }
 macro_rules! strength{
-    ($el: expr, $lim: expr) => (if $el < $lim { 3 } else { 1 })
+    ($el: expr, $lim: expr) => (if $el.abs() < $lim { 3 } else { 1 })
 }
 fn clip_symm(val: i16, lim: i16) -> i16 { val.max(-lim).min(lim) }
 
@@ -182,7 +184,7 @@ fn filter_luma_edge(dst: &mut [u8], mut offset: usize, step: usize, stride: usiz
                     };
                 dst[offset - step] = clip8((dst[offset - step] as i16) + delta);
                 dst[offset]        = clip8((dst[offset]        as i16) - delta);
-                if (str_q != 1) && (diff_q1q2.abs() <= (lim1 >> 2)) {
+                if (str_q != 1) && (diff_q1q2.abs() <= (lim2 >> 2)) {
                     let diff = (diff_q1q0[y] + diff_q1q2 - delta) >> 1;
                     let delta_q1 = if weak {
                             clip_symm(diff, (mode1 >> 1) as i16)
@@ -191,7 +193,7 @@ fn filter_luma_edge(dst: &mut [u8], mut offset: usize, step: usize, stride: usiz
                         };
                     dst[offset - 2 * step] = clip8((dst[offset - 2 * step] as i16) - delta_q1);
                 }
-                if (str_p != 1) && (diff_p1p2.abs() <= (lim1 >> 2)) {
+                if (str_p != 1) && (diff_p1p2.abs() <= (lim2 >> 2)) {
                     let diff = (diff_p1p0[y] + diff_p1p2 + delta) >> 1;
                     let delta_p1 = if weak {
                             clip_symm(diff, (mode2 >> 1) as i16)
@@ -409,7 +411,7 @@ impl RV60DSP {
         blk[off +  0 * step] = ((tm0 + tt0 + 64) >> 7) as i16;
         blk[off +  1 * step] = ((tm4 + tt1 + 64) >> 7) as i16;
         blk[off +  2 * step] = ((tm6 + tt2 + 64) >> 7) as i16;
-        blk[off +  3 * step] = ((tm4 + tt3 + 64) >> 7) as i16;
+        blk[off +  3 * step] = ((tm2 + tt3 + 64) >> 7) as i16;
         blk[off +  4 * step] = ((tm3 + tt4 + 64) >> 7) as i16;
         blk[off +  5 * step] = ((tm7 + tt5 + 64) >> 7) as i16;
         blk[off +  6 * step] = ((tm5 + tt6 + 64) >> 7) as i16;
@@ -492,7 +494,7 @@ impl RV60DSP {
                 luma_mc(dst, doffset, dstride, src, soffset, sstride, w, h, cx, cy);
             } else {
                 let mut ebuf: [u8; 70*70] = [0; 70*70];
-                edge_emu(prev_frame, (x as isize) + (dx as isize) - 2, (y as isize) + (dy as isize) - 2, w+5, h+5, &mut ebuf, 70, 0, 0);
+                edge_emu(prev_frame, (x as isize) + (dx as isize) - 2, (y as isize) + (dy as isize) - 2, w+5, h+5, &mut ebuf, 70, 0, 4);
                 luma_mc(dst, doffset, dstride, &ebuf, 70*2 + 2, 70, w, h, cx, cy);
             }
         }
@@ -520,7 +522,7 @@ impl RV60DSP {
                 chroma_mc(frame.data, doffset, dstride, src, soffset, sstride, cw, ch, cx, cy);
             } else {
                 let mut ebuf: [u8; 40*40] = [0; 40*40];
-                edge_emu(prev_frame, ((x >> 1) as isize) + (dx as isize), ((y >> 1) as isize) + (dy as isize), cw+1, ch+1, &mut ebuf, 40, comp, 0);
+                edge_emu(prev_frame, ((x >> 1) as isize) + (dx as isize), ((y >> 1) as isize) + (dy as isize), cw+1, ch+1, &mut ebuf, 40, comp, 3);
                 chroma_mc(frame.data, doffset, dstride, &ebuf, 0, 40, cw, ch, cx, cy);
             }
         }