Add AudioTensor support (FFMPEG)

Author: saddam213

TensorStack.Audio.Windows/AudioInput.cs

@@ -0,0 +1,72 @@
+// Copyright (c) TensorStack. All rights reserved.
+// Licensed under the Apache 2.0 License.
+using System.Threading;
+using System.Threading.Tasks;
+using TensorStack.Audio.Windows;
+using TensorStack.Common.Tensor;
+
+namespace TensorStack.Audio
+{
+    /// <summary>
+    /// Class to handle processing of a audio from file.
+    /// </summary>
+    public class AudioInput : AudioInputBase
+    {
+        private readonly string _sourceFile;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AudioInput"/> class.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        public AudioInput(string filename, string audioCodec = "pcm_s16le", int sampleRate = 16000, int channels = 1)
+            : this(filename, AudioManager.LoadTensor(filename, audioCodec, sampleRate, channels)) { }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AudioInput"/> class.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <param name="audioTensor">The audio tensor.</param>
+        protected AudioInput(string filename, AudioTensor audioTensor)
+            : base(audioTensor)
+        {
+            _sourceFile = filename;
+        }
+
+        /// <summary>
+        /// Gets the source audio filename.
+        /// </summary>
+        public override string SourceFile => _sourceFile;
+
+
+        /// <summary>
+        /// Save the Audio to file
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        public override void Save(string filename)
+        {
+            AudioManager.SaveAudio(filename, this);
+        }
+
+
+        /// <summary>
+        /// Save the Audio to file asynchronously
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        public override async Task SaveAsync(string filename, CancellationToken cancellationToken = default)
+        {
+            await AudioManager.SaveAudioAync(filename, this, cancellationToken);
+        }
+
+
+        /// <summary>
+        /// Create a AudioInput asynchronously
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        public static async Task<AudioInput> CreateAsync(string filename, string audioCodec = "pcm_s16le", int sampleRate = 16000, int channels = 1, CancellationToken cancellationToken = default)
+        {
+            return new AudioInput(filename, await AudioManager.LoadTensorAsync(filename, audioCodec, sampleRate, channels, cancellationToken));
+        }
+    }
+}