Switch to using "opus" and add support for windows

src/audio_source.rs

@@ -1,13 +1,12 @@
-use std::io::{stdin, Read};
 use crate::tx_thread::TxThread;
 use crate::udp_connection::OpusUdpConnection;
 use crate::util::{SAMPLE_RATE, SAMPLE_RATE_RAW, STEREO_FRAME_SIZE, ThreadMessage};
 use anyhow::Error;
-use audiopus::coder::Encoder;
-use audiopus::{Application, Bitrate, Channels, Signal};
 use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
 use cpal::{BufferSize, FromSample, Host, Sample, SampleRate, StreamConfig};
 use log::{error, info};
+use opus::{Application, Bitrate, Channels, Encoder, Signal};
+use std::io::{Read, stdin};
 use std::net::SocketAddr;
 use std::sync::mpsc::{Sender, channel};
 use std::thread;