util/frame/audio: change rate type to u32

src/util/frame/audio.rs

@@ -72,15 +72,15 @@ impl Audio {
 		}
 	}
 
-	pub fn rate(&self) -> i32 {
+	pub fn rate(&self) -> u32 {
 		unsafe {
-			av_frame_get_sample_rate(self.ptr)
+			av_frame_get_sample_rate(self.ptr) as u32
 		}
 	}
 
-	pub fn set_rate(&mut self, value: i32) {
+	pub fn set_rate(&mut self, value: u32) {
 		unsafe {
-			av_frame_set_sample_rate(self.ptr, value);
+			av_frame_set_sample_rate(self.ptr, value as c_int);
 		}
 	}
 
@@ -97,11 +97,11 @@ impl Audio {
 	}
 
 	pub fn samples(&self) -> Samples {
-		Samples::wrap(self.ptr as *mut AVPicture, self.format(), self.sample_number(), self.channels())
+		Samples::wrap(self.ptr as *mut AVPicture, self.format(), self.rate(), self.sample_number(), self.channels())
 	}
 
 	pub fn samples_mut(&mut self) -> Samples {
-		Samples::wrap(self.ptr as *mut AVPicture, self.format(), self.sample_number(), self.channels())
+		Samples::wrap(self.ptr as *mut AVPicture, self.format(), self.rate(), self.sample_number(), self.channels())
 	}
 }
 

src/util/samples.rs

@@ -11,6 +11,7 @@ pub struct Samples<'a> {
 	pub ptr: *mut AVPicture,
 
 	format:   Sample,
+	rate:     u32,
 	number:   usize,
 	channels: u16,
 
@@ -18,11 +19,12 @@ pub struct Samples<'a> {
 }
 
 impl<'a> Samples<'a> {
-	pub fn wrap(ptr: *mut AVPicture, format: Sample, number: usize, channels: u16) -> Self {
+	pub fn wrap(ptr: *mut AVPicture, format: Sample, rate: u32, number: usize, channels: u16) -> Self {
 		Samples {
 			ptr: ptr,
 
 			format:   format,
+			rate:     rate,
 			number:   number,
 			channels: channels,
 
@@ -34,6 +36,10 @@ impl<'a> Samples<'a> {
 		self.format
 	}
 
+	pub fn rate(&self) -> u32 {
+		self.rate
+	}
+
 	pub fn number(&self) -> usize {
 		self.number
 	}