implemented audio formats conversion.

GarAudio.cs

@@ -0,0 +1,71 @@
+//! \file       GarAudio.cs
+//! \date       Thu May 14 13:58:03 2015
+//! \brief      GARbro audio formats conversions.
+//
+// Copyright (C) 2015 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Windows;
+using GameRes;
+using GARbro.GUI.Strings;
+
+namespace GARbro.GUI
+{
+    public partial class MainWindow : Window
+    {
+        void ExtractAudio (ArcFile arc, Entry entry)
+        {
+            using (var file = arc.OpenEntry (entry))
+            using (var sound = AudioFormat.Read (file))
+            {
+                if (null == sound)
+                    throw new InvalidFormatException (string.Format ("{1}: {0}", guiStrings.MsgUnableInterpret, entry.Name));
+                ConvertAudio (entry.Name, sound);
+            }
+        }
+
+        public static readonly HashSet<string> CommonAudioFormats = new HashSet<string> { "wav", "mp3", "ogg" };
+
+        void ConvertAudio (string entry_name, SoundInput input)
+        {
+            string source_format = input.SourceFormat;
+            if (CommonAudioFormats.Contains (source_format))
+            {
+                string output_name = Path.ChangeExtension (entry_name, source_format);
+                using (var output = ArchiveFormat.CreateFile (output_name))
+                {
+                    input.Source.Position = 0;
+                    input.Source.CopyTo (output);
+                }
+            }
+            else
+            {
+                var wav_format = FormatCatalog.Instance.AudioFormats.Where (f => f.Tag == "WAV").First();
+                string output_name = Path.ChangeExtension (entry_name, "wav");
+                using (var output = ArchiveFormat.CreateFile (output_name))
+                    wav_format.Write (input, output);
+            }
+        }
+    }
+}