c_*: Use std::ffi for C FFI types instead of libc.

include/dav1d/dav1d.rs

@@ -1,28 +1,31 @@
+use std::ffi::c_char;
+use std::ffi::c_uint;
+use std::ffi::c_void;
+
 pub use crate::src::internal::Dav1dContext;
 pub use crate::src::r#ref::Dav1dRef;
 
 #[derive(Clone)]
 #[repr(C)]
 pub struct Dav1dLogger {
-    pub cookie: *mut libc::c_void,
-    pub callback: Option<
-        unsafe extern "C" fn(*mut libc::c_void, *const libc::c_char, ::core::ffi::VaList) -> (),
-    >,
+    pub cookie: *mut c_void,
+    pub callback:
+        Option<unsafe extern "C" fn(*mut c_void, *const c_char, ::core::ffi::VaList) -> ()>,
 }
 
-pub type Dav1dInloopFilterType = libc::c_uint;
+pub type Dav1dInloopFilterType = c_uint;
 pub const DAV1D_INLOOPFILTER_ALL: Dav1dInloopFilterType = 7;
 pub const DAV1D_INLOOPFILTER_RESTORATION: Dav1dInloopFilterType = 4;
 pub const DAV1D_INLOOPFILTER_CDEF: Dav1dInloopFilterType = 2;
 pub const DAV1D_INLOOPFILTER_DEBLOCK: Dav1dInloopFilterType = 1;
 pub const DAV1D_INLOOPFILTER_NONE: Dav1dInloopFilterType = 0;
 
-pub type Dav1dDecodeFrameType = libc::c_uint;
+pub type Dav1dDecodeFrameType = c_uint;
 pub const DAV1D_DECODEFRAMETYPE_KEY: Dav1dDecodeFrameType = 3;
 pub const DAV1D_DECODEFRAMETYPE_INTRA: Dav1dDecodeFrameType = 2;
 pub const DAV1D_DECODEFRAMETYPE_REFERENCE: Dav1dDecodeFrameType = 1;
 pub const DAV1D_DECODEFRAMETYPE_ALL: Dav1dDecodeFrameType = 0;
 
-pub type Dav1dEventFlags = libc::c_uint;
+pub type Dav1dEventFlags = c_uint;
 pub const DAV1D_EVENT_FLAG_NEW_OP_PARAMS_INFO: Dav1dEventFlags = 2;
 pub const DAV1D_EVENT_FLAG_NEW_SEQUENCE: Dav1dEventFlags = 1;