diff --git a/Cargo.toml b/Cargo.toml
index 0f87db6..6b0fcab 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "webp"
 version = "0.3.0"
 authors = ["Jared Forth <jaredforthdev@gmail.com>"]
-edition = "2018"
+edition = "2021"
 
 description = "WebP conversion library."
 
diff --git a/src/animation_decoder.rs b/src/animation_decoder.rs
index 6cc8601..7f18c22 100644
--- a/src/animation_decoder.rs
+++ b/src/animation_decoder.rs
@@ -52,8 +52,8 @@ impl<'a> AnimDecoder<'a> {
             if ok != 0 {
                 let len = (if has_alpha { 4 } else { 3 } * width * height) as usize;
                 let mut img = Vec::with_capacity(len);
+                buf.copy_to(img.spare_capacity_mut().as_mut_ptr().cast(), len);
                 img.set_len(len);
-                buf.copy_to(img.as_mut_ptr(), len);
                 let layout = if has_alpha {
                     PixelLayout::Rgba
                 } else {
diff --git a/src/animation_encoder.rs b/src/animation_encoder.rs
index 049eccb..c4e9f9f 100644
--- a/src/animation_encoder.rs
+++ b/src/animation_encoder.rs
@@ -1,10 +1,7 @@
 #[cfg(feature = "img")]
-use image::DynamicImage;
+use image::{DynamicImage, ImageBuffer};
 use libwebp_sys::*;
 
-#[cfg(feature = "img")]
-use image::*;
-
 use crate::{shared::*, Encoder};
 
 pub struct AnimFrame<'a> {
@@ -62,7 +59,7 @@ impl<'a> AnimFrame<'a> {
         Self::new(image, PixelLayout::Rgba, width, height, timestamp, None)
     }
     pub fn get_image(&self) -> &[u8] {
-        &self.image
+        self.image
     }
     pub fn get_layout(&self) -> PixelLayout {
         self.layout
@@ -83,16 +80,16 @@ impl<'a> From<&'a AnimFrame<'a>> for Encoder<'a> {
     }
 }
 #[cfg(feature = "img")]
-impl Into<DynamicImage> for &AnimFrame<'_> {
-    fn into(self) -> DynamicImage {
-        if self.layout.is_alpha() {
+impl From<&AnimFrame<'_>> for DynamicImage {
+    fn from(value: &AnimFrame<'_>) -> DynamicImage {
+        if value.layout.is_alpha() {
             let image =
-                ImageBuffer::from_raw(self.width(), self.height(), self.get_image().to_owned())
+                ImageBuffer::from_raw(value.width(), value.height(), value.get_image().to_owned())
                     .expect("ImageBuffer couldn't be created");
             DynamicImage::ImageRgba8(image)
         } else {
             let image =
-                ImageBuffer::from_raw(self.width(), self.height(), self.get_image().to_owned())
+                ImageBuffer::from_raw(value.width(), value.height(), value.get_image().to_owned())
                     .expect("ImageBuffer couldn't be created");
             DynamicImage::ImageRgb8(image)
         }
@@ -135,7 +132,7 @@ impl<'a> AnimEncoder<'a> {
         self.try_encode().unwrap()
     }
     pub fn try_encode(&self) -> Result<WebPMemory, AnimEncodeError> {
-        unsafe { anim_encode(&self) }
+        unsafe { anim_encode(self) }
     }
 }
 
diff --git a/src/encoder.rs b/src/encoder.rs
index d44bee5..4590061 100644
--- a/src/encoder.rs
+++ b/src/encoder.rs
@@ -90,8 +90,7 @@ impl<'a> Encoder<'a> {
     pub fn encode_advanced(&self, config: &WebPConfig) -> Result<WebPMemory, WebPEncodingError> {
         unsafe {
             let mut picture = new_picture(self.image, self.layout, self.width, self.height);
-            let res = encode(&mut *picture, config);
-            res
+            encode(&mut picture, config)
         }
     }
 }
@@ -129,7 +128,7 @@ unsafe fn encode(
     picture.custom_ptr = ww.as_mut_ptr() as *mut std::ffi::c_void;
     let status = libwebp_sys::WebPEncode(config, picture);
     let ww = ww.assume_init();
-    let mem = WebPMemory(ww.mem, ww.size as usize);
+    let mem = WebPMemory(ww.mem, ww.size);
     if status != VP8StatusCode::VP8_STATUS_OK as i32 {
         Ok(mem)
     } else {