Fix clippy warnings in the examples

examples/src/bin/appsink.rs

@@ -3,9 +3,6 @@ use gst::*;
 extern crate gstreamer_app as gst_app;
 use gst_app::*;
 
-extern crate glib;
-use glib::*;
-
 use std::u64;
 use std::i16;
 use std::i32;
@@ -24,10 +21,10 @@ fn main() {
     appsink.set_caps(&Caps::new_simple(
         "audio/x-raw",
         &[
-            (&"format", &"S16BE"),
-            (&"layout", &"interleaved"),
-            (&"channels", &(1i32)),
-            (&"rate", &IntRange::<i32>::new(1, i32::MAX)),
+            ("format", &"S16BE"),
+            ("layout", &"interleaved"),
+            ("channels", &(1i32)),
+            ("rate", &IntRange::<i32>::new(1, i32::MAX)),
         ],
     ));
 

examples/src/bin/appsrc.rs

@@ -3,9 +3,6 @@ use gst::*;
 extern crate gstreamer_app as gst_app;
 use gst_app::*;
 
-extern crate glib;
-use glib::*;
-
 use std::u64;
 use std::thread;
 
@@ -27,10 +24,10 @@ fn main() {
     appsrc.set_caps(&Caps::new_simple(
         "video/x-raw",
         &[
-            (&"format", &"BGRx"),
-            (&"width", &(WIDTH as i32)),
-            (&"height", &(HEIGHT as i32)),
-            (&"framerate", &Fraction::new(2, 1)),
+            ("format", &"BGRx"),
+            ("width", &(WIDTH as i32)),
+            ("height", &(HEIGHT as i32)),
+            ("framerate", &Fraction::new(2, 1)),
         ],
     ));
     appsrc.set_property_format(Format::Time);

examples/src/bin/decodebin.rs

@@ -29,7 +29,7 @@ fn main() {
     // Need to move a new reference into the closure
     let pipeline_clone = pipeline.clone();
     decodebin.connect_pad_added(move |_, src_pad| {
-        let ref pipeline = pipeline_clone;
+        let pipeline = &pipeline_clone;
 
         let (is_audio, is_video) = {
             let caps = src_pad.get_current_caps().unwrap();

examples/src/bin/pad_probes.rs

@@ -20,21 +20,18 @@ fn main() {
         .unwrap();
     let src_pad = src.get_static_pad("src").unwrap();
     src_pad.add_probe(PAD_PROBE_TYPE_BUFFER, |_, probe_info| {
-        match probe_info.data {
-            Some(PadProbeData::Buffer(ref buffer)) => {
-                let map = buffer.map_read().unwrap();
-                let data = map.as_slice();
-                let sum: f64 = data.chunks(2)
-                    .map(|sample| {
-                        let u: u16 = ((sample[0] as u16) << 8) | (sample[1] as u16);
-                        let f = (u as i16 as f64) / (i16::MAX as f64);
-                        f * f
-                    })
-                    .sum();
-                let rms = (sum / ((data.len() / 2) as f64)).sqrt();
-                println!("rms: {}", rms);
-            }
-            _ => (),
+        if let Some(PadProbeData::Buffer(ref buffer)) = probe_info.data {
+            let map = buffer.map_read().unwrap();
+            let data = map.as_slice();
+            let sum: f64 = data.chunks(2)
+                .map(|sample| {
+                    let u: u16 = ((sample[0] as u16) << 8) | (sample[1] as u16);
+                    let f = (u as i16 as f64) / (i16::MAX as f64);
+                    f * f
+                })
+                .sum();
+            let rms = (sum / ((data.len() / 2) as f64)).sqrt();
+            println!("rms: {}", rms);
         }
 
         PadProbeReturn::Ok