From e947bc56064a4aec2fcaa8bfbbce718e0b7359cb Mon Sep 17 00:00:00 2001
From: Zhiming Wang <i@zhimingwang.org>
Date: Sun, 26 Jul 2020 01:01:32 +0800
Subject: [PATCH] Fix clippy::transmute_ptr_to_ptr

---
 src/util/format/sample.rs | 7 +++----
 src/util/frame/audio.rs   | 9 ++-------
 src/util/frame/video.rs   | 4 ++--
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/src/util/format/sample.rs b/src/util/format/sample.rs
index fda106c..42ab7c5 100644
--- a/src/util/format/sample.rs
+++ b/src/util/format/sample.rs
@@ -1,5 +1,4 @@
 use std::ffi::{CStr, CString};
-use std::mem;
 use std::ops::Index;
 use std::ptr;
 use std::slice;
@@ -7,7 +6,7 @@ use std::str::from_utf8_unchecked;
 
 use ffi::AVSampleFormat::*;
 use ffi::*;
-use libc::c_int;
+use libc::{c_int, c_void};
 
 #[derive(Eq, PartialEq, Copy, Clone, Debug)]
 pub enum Sample {
@@ -203,7 +202,7 @@ impl Clone for Buffer {
         unsafe {
             av_samples_copy(
                 self.buffer,
-                mem::transmute(source.buffer),
+                source.buffer as *const *mut u8,
                 0,
                 0,
                 source.samples as c_int,
@@ -218,7 +217,7 @@ impl Drop for Buffer {
     #[inline]
     fn drop(&mut self) {
         unsafe {
-            av_freep(mem::transmute(self.buffer));
+            av_freep(self.buffer as *mut c_void);
         }
     }
 }
diff --git a/src/util/frame/audio.rs b/src/util/frame/audio.rs
index f29c427..12a0694 100644
--- a/src/util/frame/audio.rs
+++ b/src/util/frame/audio.rs
@@ -148,9 +148,7 @@ impl Audio {
             panic!("unsupported type");
         }
 
-        unsafe {
-            slice::from_raw_parts(mem::transmute((*self.as_ptr()).data[index]), self.samples())
-        }
+        unsafe { slice::from_raw_parts((*self.as_ptr()).data[index] as *const T, self.samples()) }
     }
 
     #[inline]
@@ -164,10 +162,7 @@ impl Audio {
         }
 
         unsafe {
-            slice::from_raw_parts_mut(
-                mem::transmute((*self.as_mut_ptr()).data[index]),
-                self.samples(),
-            )
+            slice::from_raw_parts_mut((*self.as_mut_ptr()).data[index] as *mut T, self.samples())
         }
     }
 
diff --git a/src/util/frame/video.rs b/src/util/frame/video.rs
index e4fcdb5..71e0d76 100644
--- a/src/util/frame/video.rs
+++ b/src/util/frame/video.rs
@@ -260,7 +260,7 @@ impl Video {
 
         unsafe {
             slice::from_raw_parts(
-                mem::transmute((*self.as_ptr()).data[index]),
+                (*self.as_ptr()).data[index] as *const T,
                 self.stride(index) * self.plane_height(index) as usize / mem::size_of::<T>(),
             )
         }
@@ -278,7 +278,7 @@ impl Video {
 
         unsafe {
             slice::from_raw_parts_mut(
-                mem::transmute((*self.as_mut_ptr()).data[index]),
+                (*self.as_mut_ptr()).data[index] as *mut T,
                 self.stride(index) * self.plane_height(index) as usize / mem::size_of::<T>(),
             )
         }