Audio to its own namespace

RedBookPlayer.Models/Audio/Linux/AudioBackend.cs

@@ -0,0 +1,52 @@
+using CSCore.SoundOut;
+
+namespace RedBookPlayer.Models.Audio.Linux
+{
+    public class AudioBackend : IAudioBackend
+    {
+        /// <summary>
+        /// Sound output instance
+        /// </summary>
+        private readonly ALSoundOut _soundOut;
+
+        public AudioBackend() { }
+
+        public AudioBackend(PlayerSource source)
+        {
+            _soundOut = new ALSoundOut(100);
+            _soundOut.Initialize(source);
+        }
+
+        #region IAudioBackend Implementation
+
+        /// <inheritdoc/>
+        public void Pause() => _soundOut.Pause();
+
+        /// <inheritdoc/>
+        public void Play() => _soundOut.Play();
+
+        /// <inheritdoc/>
+        public void Stop() => _soundOut.Stop();
+
+        /// <inheritdoc/>
+        public PlayerState GetPlayerState()
+        {
+            return (_soundOut?.PlaybackState) switch
+            {
+                PlaybackState.Paused => PlayerState.Paused,
+                PlaybackState.Playing => PlayerState.Playing,
+                PlaybackState.Stopped => PlayerState.Stopped,
+                _ => PlayerState.NoDisc,
+            };
+        }
+
+        /// <inheritdoc/>
+        public void SetVolume(float volume)
+        {
+            if (_soundOut != null)
+                _soundOut.Volume = volume;
+        }
+
+        #endregion
+    }
+}