drop unneeded mut for mutable refs

diff --git a/src/codecs/blockdsp.rs b/src/codecs/blockdsp.rs
index 4c0fea67ca0845a00d360332fcf57d8ae49c0893..33d682afeb860d980cc6ba95def16367b8dd06fc 100644 (file)
--- a/src/codecs/blockdsp.rs
+++ b/src/codecs/blockdsp.rs
@@ -150,7 +150,7 @@ pub fn copy_blocks(dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>,
             let dstride = dst.get_stride(comp);
             let doff    = dst.get_offset(comp);
             let mut ddta    = dst.get_data_mut();
-            let mut dbuf: &mut [u8] = ddta.as_mut_slice();
+            let dbuf: &mut [u8] = ddta.as_mut_slice();
             let x   = if comp > 0 { dx/2 } else { dx };
             let y   = if comp > 0 { dy/2 } else { dy };
             let sx_ = (if comp > 0 { sx >> 1 } else { sx }) - pre;
@@ -172,7 +172,7 @@ pub fn copy_blocks(dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>,
             let dstride = dst.get_stride(comp);
             let doff    = dst.get_offset(comp);
             let mut ddta    = dst.get_data_mut();
-            let mut dbuf: &mut [u8] = ddta.as_mut_slice();
+            let dbuf: &mut [u8] = ddta.as_mut_slice();
             let x   = if comp > 0 { dx/2 } else { dx };
             let y   = if comp > 0 { dy/2 } else { dy };
             let sx_ = ((if comp > 0 { sx >> 1 } else { sx }) - pre) as usize;

diff --git a/src/codecs/indeo/ividsp.rs b/src/codecs/indeo/ividsp.rs
index 5bec1ebe6826418137f782e474bb8c58418380d2..88bc8cc56c04d5643e071ccabd88929a9a5628c0 100644 (file)
--- a/src/codecs/indeo/ividsp.rs
+++ b/src/codecs/indeo/ividsp.rs
@@ -102,13 +102,13 @@ fn haar8x8_2d(blk: &mut[i32; 64]) {
                         blk[i + 4*8], blk[i + 5*8], blk[i + 6*8], blk[i + 7*8]);
     }
     for i in 0..8 {
-        let mut row = &mut blk[i*8..(i+1)*8];
+        let row = &mut blk[i*8..(i+1)*8];
         haar_transform!(row[0], row[1], row[2], row[3], row[4], row[5], row[6], row[7]);
     }
 }
 fn haar8x8_row(blk: &mut[i32; 64]) {
     for i in 0..8 {
-        let mut row = &mut blk[i*8..(i+1)*8];
+        let row = &mut blk[i*8..(i+1)*8];
         haar_transform!(row[0], row[1], row[2], row[3], row[4], row[5], row[6], row[7]);
     }
 }
@@ -135,13 +135,13 @@ fn haar4x4_2d(blk: &mut[i32; 64]) {
         haar_transform!(blk[i + 0*4], blk[i + 1*4], blk[i + 2*4], blk[i + 3*4]);
     }
     for i in 0..4 {
-        let mut row = &mut blk[i*4..(i+1)*4];
+        let row = &mut blk[i*4..(i+1)*4];
         haar_transform!(row[0], row[1], row[2], row[3]);
     }
 }
 fn haar4x4_row(blk: &mut[i32; 64]) {
     for i in 0..4 {
-        let mut row = &mut blk[i*4..(i+1)*4];
+        let row = &mut blk[i*4..(i+1)*4];
         haar_transform!(row[0], row[1], row[2], row[3]);
     }
 }
@@ -168,7 +168,7 @@ fn slant8x8_2d(blk: &mut[i32; 64]) {
                          blk[i + 4*8], blk[i + 5*8], blk[i + 6*8], blk[i + 7*8], pass1);
     }
     for i in 0..8 {
-        let mut row = &mut blk[i*8..(i+1)*8];
+        let row = &mut blk[i*8..(i+1)*8];
         slant_transform!(row[0], row[1], row[2], row[3], row[4], row[5], row[6], row[7], pass2);
     }
 }
@@ -180,7 +180,7 @@ fn slant8x8_row(blk: &mut[i32; 64]) {
     let pass = |x: i32| (x + 1) >> 1;
 
     for i in 0..8 {
-        let mut row = &mut blk[i*8..(i+1)*8];
+        let row = &mut blk[i*8..(i+1)*8];
         slant_transform!(row[0], row[1], row[2], row[3], row[4], row[5], row[6], row[7], pass);
     }
 }
@@ -215,7 +215,7 @@ fn slant4x4_2d(blk: &mut[i32; 64]) {
         slant_transform!(blk[i + 0*4], blk[i + 1*4], blk[i + 2*4], blk[i + 3*4], pass1);
     }
     for i in 0..4 {
-        let mut row = &mut blk[i*4..(i+1)*4];
+        let row = &mut blk[i*4..(i+1)*4];
         slant_transform!(row[0], row[1], row[2], row[3], pass2);
     }
 }
@@ -227,7 +227,7 @@ fn slant4x4_row(blk: &mut[i32; 64]) {
     let pass = |x: i32| (x + 1) >> 1;
 
     for i in 0..4 {
-        let mut row = &mut blk[i*4..(i+1)*4];
+        let row = &mut blk[i*4..(i+1)*4];
         slant_transform!(row[0], row[1], row[2], row[3], pass);
     }
 }
@@ -312,7 +312,7 @@ pub fn ivi_mc_put(dst: &mut [i16], dstride: usize, src: &[i16], sstride: usize,
     match mode {
         0 => {
             for _ in 0..h {
-                let mut dest = &mut dst[didx..didx+w];
+                let dest = &mut dst[didx..didx+w];
                 dest.copy_from_slice(&src[sidx..sidx+w]);
                 sidx += sstride;
                 didx += dstride;

diff --git a/src/codecs/real/rv60.rs b/src/codecs/real/rv60.rs
index a1ad055d3e22a917bbb5014867b76753ce337c43..2d1262b2b88e9d9802de15bd325295cba848e8a2 100644 (file)
--- a/src/codecs/real/rv60.rs
+++ b/src/codecs/real/rv60.rs
@@ -741,7 +741,7 @@ println!(" left {} bits", br.left());
                             let dstride = buf.get_stride(0);
                             let off = xpos + ypos * dstride;
                             let mut data = buf.get_data_mut();
-                            let mut dst = &mut data;
+                            let dst = &mut data;
                             self.populate_ipred(hdr, dst, 0, dstride, 0, 0, size, true);
                             self.ipred.pred_angle(dst, off, dstride, size, itype as usize, true);
                         }