Add files

src/file_sink.rs

@@ -0,0 +1,44 @@
+use librespot::playback::audio_backend::{Open, Sink};
+use std::io::{self};
+
+extern crate flac_bound;
+
+use flac_bound::{FlacEncoder};
+
+pub struct FileSink {
+    sink: String,
+    content: Vec<i32>
+}
+
+impl Open for FileSink {
+    fn open(path: Option<String>) -> Self {
+        if let Some(path) = path {
+            let file = path;
+            FileSink {
+                sink: file,
+                content: Vec::new()
+            }
+        } else {
+            panic!();
+        }
+    }
+}
+
+impl Sink for FileSink {
+    fn start(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+
+    fn stop(&mut self) -> io::Result<()> {
+        let mut encoder = FlacEncoder::new().unwrap().channels(2).bits_per_sample(16).compression_level(0).init_file(&self.sink).unwrap();
+        encoder.process_interleaved(self.content.as_slice(), (self.content.len()/2) as u32).unwrap();
+        encoder.finish().unwrap();
+        Ok(())
+    }
+
+    fn write(&mut self, data: &[i16]) -> io::Result<()> {
+        let mut input: Vec<i32> = data.iter().map(|el| i32::from(*el)).collect();
+        self.content.append(&mut input);
+        Ok(())
+    }
+}