diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index bd71c6cf..5353c68d 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -223,6 +223,8 @@
+
+
diff --git a/ArcFormats/Mebius/AudioKOE.cs b/ArcFormats/Mebius/AudioKOE.cs
new file mode 100644
index 00000000..ff2a1940
--- /dev/null
+++ b/ArcFormats/Mebius/AudioKOE.cs
@@ -0,0 +1,125 @@
+//! \file AudioKOE.cs
+//! \date 2018 Nov 19
+//! \brief Mebius engine encrypted WAVE file.
+//
+// Copyright (C) 2018 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Mebius
+{
+ [Export(typeof(AudioFormat))]
+ [ExportMetadata("Priority", -1)]
+ public class KoeAudio : AudioFormat
+ {
+ public override string Tag { get { return "KOE/MEBIUS"; } }
+ public override string Description { get { return "Mebius engine encrypted WAVE file"; } }
+ public override uint Signature { get { return 0x46464952; } } // 'RIFF'
+ public override bool CanWrite { get { return false; } }
+
+ static readonly string[] RequiredExtensions = { "koe", "mse", "bgm" };
+
+ public KoeAudio ()
+ {
+ Extensions = RequiredExtensions;
+ }
+
+ public override SoundInput TryOpen (IBinaryStream file)
+ {
+ if (!file.Name.HasAnyOfExtensions (RequiredExtensions))
+ return null;
+ var ext = Path.GetExtension (file.Name).TrimStart ('.').ToLowerInvariant();
+ byte[] key;
+ if (!DefaultKeys.TryGetValue (ext, out key))
+ return null;
+ var header = file.ReadHeader (0x14);
+ int fmt_length = header.ToInt32 (0x10);
+ int data_pos = 0x14 + fmt_length;
+ var wav_header = file.ReadHeader (data_pos + 8).ToArray();
+ Stream data = new StreamRegion (file.AsStream, file.Position);
+ data = new ByteStringEncryptedStream (data, key);
+ data = new PrefixStream (wav_header, data);
+ return new WaveInput (data);
+ }
+
+ static readonly Dictionary DefaultKeys = new Dictionary {
+ { "koe", new byte[] {
+ 0x15, 0xEE, 0x1F, 0x83, 0x32, 0x20, 0xF8, 0x17, 0x53, 0xE3, 0x7B, 0xC0, 0x6A, 0x75, 0x93, 0xA5,
+ 0x79, 0x32, 0x36, 0x7A, 0x76, 0xC5, 0xF4, 0x06, 0xC5, 0x08, 0xF5, 0x1E, 0xE4, 0xD5, 0xED, 0x72,
+ 0x0B, 0xEC, 0x2A, 0x52, 0x6D, 0x87, 0xC3, 0x55, 0xD9, 0xC0, 0x07, 0x7A, 0x5E, 0x84, 0x35, 0x38,
+ 0xB7, 0x0C, 0x17, 0x8A, 0x22, 0xB4, 0x17, 0xFB, 0xEE, 0xA1, 0x57, 0xAE, 0x51, 0x09, 0xF3, 0xE9,
+ 0x65, 0x0F, 0x66, 0x3B, 0xD1, 0x91, 0x51, 0x0F, 0x08, 0x58, 0xC3, 0x75, 0x0D, 0x69, 0x3C, 0x65,
+ 0xC4, 0x92, 0x1E, 0x27, 0x32, 0x69, 0x93, 0xD3, 0x19, 0xBA, 0xAF, 0x00, 0x87, 0x38, 0x79, 0xFB,
+ 0x24, 0xEA, 0xAE, 0x4E, 0x4C, 0x1C, 0x06, 0xCF, 0xD9, 0xD7, 0x4E, 0x80, 0x2C, 0x27, 0xBF, 0x07,
+ 0x38, 0xA6, 0x48, 0xF9, 0x43, 0x2E, 0x32, 0xD4, 0x13, 0x09, 0x7B, 0xBB, 0xAC, 0x92, 0x99, 0xF8,
+ 0x70, 0xAC, 0xA1, 0xD0, 0x2A, 0x59, 0x8F, 0x17, 0xEF, 0xFE, 0x85, 0x9B, 0x53, 0x15, 0xDA, 0xE9,
+ 0xC7, 0xBD, 0xD4, 0x64, 0x55, 0x9C, 0x42, 0x38, 0x4E, 0x55, 0x7D, 0x3D, 0xCB, 0x96, 0xF0, 0xA8,
+ 0x14, 0x92, 0x21, 0x3E, 0xA1, 0xCC, 0xF0, 0xD9, 0x0F, 0xA1, 0x0B, 0x00, 0xFD, 0x5C, 0xAE, 0x4E,
+ 0x53, 0x61, 0xC6, 0xF6, 0xCE, 0xA5, 0x91, 0x2C, 0x62, 0x01, 0x3A, 0x17, 0x53, 0x1A, 0xA1, 0x47,
+ 0xFE, 0xF1, 0xD1, 0x42, 0x48, 0xD3, 0xBB, 0x7F, 0x1D, 0xA8, 0xC7, 0x96, 0x8E, 0xFC, 0x5E, 0xEA,
+ 0x5A, 0xAD, 0xE8, 0xFB, 0x78, 0x8B, 0x76, 0xD2, 0x86, 0x7B, 0x79, 0x0B, 0x96, 0xC4, 0x51, 0x04,
+ 0x43, 0x30, 0x20, 0x3F, 0x19, 0x19, 0x88, 0xE3, 0x27, 0x10, 0x65, 0xFE, 0xC8, 0x4A, 0x11, 0x67,
+ 0x01, 0x55, 0x46, 0xEE, 0x80, 0x68, 0xC9, 0xC1, 0x1B, 0x4C, 0x49, 0x14, 0xC9, 0x95, 0xA9, 0x7F,
+ } },
+ { "mse", new byte[] {
+ 0x06, 0xDE, 0xEF, 0x76, 0xD2, 0xDA, 0xE7, 0x95, 0x7A, 0x87, 0x6D, 0x7C, 0xF6, 0x17, 0x44, 0x9F,
+ 0x08, 0xD2, 0xC5, 0x89, 0xDC, 0xDE, 0xA1, 0x0F, 0x2D, 0xCB, 0xCA, 0xB8, 0x6E, 0xBB, 0x7F, 0x8A,
+ 0x9E, 0x63, 0x70, 0x58, 0xCC, 0xA8, 0x61, 0x34, 0x68, 0x98, 0xD8, 0xB3, 0x74, 0x18, 0x2C, 0x9B,
+ 0x1F, 0x64, 0xFD, 0x28, 0xF4, 0x56, 0x8E, 0x80, 0x98, 0x06, 0x5C, 0x13, 0x38, 0x31, 0xFE, 0x62,
+ 0xBD, 0x11, 0xBC, 0x05, 0x58, 0xF6, 0x38, 0xDD, 0x6A, 0x5A, 0x01, 0x4C, 0x03, 0xC1, 0x0A, 0xE0,
+ 0x58, 0xA2, 0x88, 0x4E, 0xF6, 0x96, 0x1A, 0x2A, 0xA0, 0xA1, 0xA5, 0xAF, 0x04, 0x4E, 0x08, 0x99,
+ 0xC8, 0xDA, 0x9B, 0x4C, 0xA4, 0xD2, 0x82, 0x51, 0xE2, 0xBB, 0x33, 0xFC, 0x23, 0xAF, 0xAD, 0x22,
+ 0xB7, 0x98, 0x5D, 0x36, 0xD3, 0xE7, 0x8C, 0x54, 0x0C, 0x6A, 0xE6, 0x6D, 0x53, 0x28, 0xFA, 0xAE,
+ 0xE7, 0x66, 0x36, 0x50, 0xE6, 0x40, 0xBA, 0xDF, 0xFA, 0xE2, 0xA3, 0xCC, 0xDB, 0x70, 0x89, 0x27,
+ 0x88, 0x0A, 0x59, 0x6D, 0x81, 0x06, 0xD1, 0x5A, 0x65, 0x5E, 0xC3, 0x7F, 0x2F, 0xC7, 0x5D, 0xB2,
+ 0x86, 0x91, 0x19, 0x0A, 0xD7, 0x33, 0xA8, 0xF0, 0x21, 0xA7, 0xE7, 0x19, 0xB5, 0x07, 0xB4, 0xCA,
+ 0x59, 0xEA, 0xB8, 0xD4, 0xFB, 0x21, 0xF8, 0xAC, 0x7C, 0x2F, 0x45, 0xEA, 0x22, 0x2B, 0x58, 0x4A,
+ 0x55, 0xEA, 0xB6, 0x45, 0x34, 0x96, 0xAE, 0xFD, 0x86, 0x97, 0xF9, 0x93, 0xBE, 0x6A, 0x6A, 0xFB,
+ 0x7B, 0x65, 0x21, 0x24, 0x42, 0x5C, 0x37, 0x4F, 0x64, 0x45, 0x58, 0x0C, 0xBC, 0xC1, 0xB7, 0xAD,
+ 0xC7, 0xB6, 0xE3, 0x21, 0xBB, 0xC8, 0xD2, 0x15, 0x1F, 0xF1, 0x39, 0x3F, 0x87, 0x86, 0x88, 0xBE,
+ 0x84, 0xD7, 0x1A, 0x63, 0xD5, 0x51, 0x63, 0xDB, 0x74, 0x39, 0x4C, 0x12, 0x12, 0xF1, 0x6E, 0x2C,
+ } },
+ { "bgm", new byte[] {
+ 0xB0, 0x6F, 0xA4, 0xD7, 0x8B, 0x81, 0xBD, 0xF3, 0x82, 0xAF, 0x95, 0x6B, 0x9D, 0x3E, 0x88, 0x73,
+ 0xB8, 0xF9, 0xD8, 0x09, 0x31, 0xF3, 0x84, 0xDA, 0xCC, 0xAF, 0x54, 0x60, 0xFD, 0x97, 0x04, 0xA6,
+ 0x05, 0x65, 0x20, 0x9A, 0xA7, 0x62, 0xD9, 0xD7, 0x5C, 0x98, 0x6F, 0x2D, 0x3A, 0x6E, 0x07, 0xF8,
+ 0x86, 0x34, 0xF9, 0x05, 0xAB, 0x25, 0xF5, 0x70, 0x79, 0x64, 0x03, 0x7C, 0xF2, 0xF6, 0xBF, 0x9B,
+ 0x91, 0xBB, 0x6B, 0x2A, 0xB3, 0xEB, 0xF2, 0x42, 0x39, 0x27, 0xD2, 0xF0, 0xEA, 0x00, 0x7A, 0x57,
+ 0xAF, 0xB2, 0xCE, 0xEE, 0xBE, 0xCE, 0x1B, 0x87, 0x4E, 0x1F, 0xA4, 0xB0, 0xD1, 0x8E, 0x79, 0x9D,
+ 0x6E, 0xC4, 0x26, 0xBF, 0x26, 0xDD, 0x39, 0x2D, 0x54, 0x49, 0x0B, 0xF6, 0x19, 0xDF, 0x3E, 0x19,
+ 0x2F, 0xA2, 0x6A, 0x2A, 0x66, 0xAC, 0x68, 0x60, 0xA6, 0xEB, 0xB7, 0x24, 0xC0, 0x85, 0x5E, 0x40,
+ 0xF8, 0x8B, 0xD8, 0x68, 0x78, 0xE8, 0x66, 0xA1, 0xAA, 0xA7, 0xC7, 0x4F, 0x2C, 0x6D, 0xD1, 0x5F,
+ 0xC4, 0xE6, 0x46, 0x6F, 0x1B, 0x69, 0xF7, 0xD1, 0x23, 0x89, 0x1C, 0x53, 0x6E, 0x75, 0x41, 0xAF,
+ 0x52, 0xCB, 0x6D, 0x03, 0x28, 0x38, 0xBE, 0x41, 0xFE, 0x99, 0x9D, 0xDF, 0x96, 0x7C, 0xD8, 0xDE,
+ 0xF3, 0x95, 0x3E, 0x47, 0x5E, 0xA7, 0x05, 0x43, 0xA8, 0x6B, 0x96, 0x8C, 0x89, 0x6D, 0x16, 0x29,
+ 0x60, 0x74, 0x31, 0x47, 0x36, 0xE2, 0x91, 0x3D, 0x57, 0xAD, 0x81, 0x63, 0xC8, 0xD5, 0x9A, 0x5F,
+ 0x03, 0x7A, 0x14, 0x10, 0x32, 0x7B, 0xF1, 0x33, 0xDE, 0xBA, 0x52, 0x74, 0xC7, 0x6E, 0xF8, 0x7E,
+ 0x4C, 0x2C, 0x58, 0x3B, 0xA9, 0x7A, 0x51, 0x5C, 0xFD, 0xA5, 0xCF, 0x67, 0xB8, 0x34, 0x85, 0x3D,
+ 0x7D, 0x93, 0xE9, 0x7E, 0x9E, 0x6E, 0xC3, 0xB2, 0xB1, 0xD0, 0x5C, 0x83, 0x61, 0x6F, 0x27, 0x18,
+ } },
+ };
+ }
+}
diff --git a/ArcFormats/Mebius/ImageMCG.cs b/ArcFormats/Mebius/ImageMCG.cs
new file mode 100644
index 00000000..2e06738b
--- /dev/null
+++ b/ArcFormats/Mebius/ImageMCG.cs
@@ -0,0 +1,180 @@
+//! \file ImageMCG.cs
+//! \date 2018 Oct 13
+//! \brief Mebius engine image format.
+//
+// Copyright (C) 2018 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;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+using GameRes.Utility;
+
+// [041224][Studio Ring] Oyatsu no Jikan
+
+namespace GameRes.Formats.Mebius
+{
+ internal class McgMetaData : ImageMetaData
+ {
+ public byte Method;
+ }
+
+ [Export(typeof(ImageFormat))]
+ public class McgFormat : ImageFormat
+ {
+ public override string Tag { get { return "MCG/MEBIUS"; } }
+ public override string Description { get { return "Mebius image format"; } }
+ public override uint Signature { get { return 0x0247434D; } } // 'MCG'
+
+ public McgFormat ()
+ {
+ Extensions = new string[] { "mcg", "msk" };
+ Signatures = new uint[] { 0x0247434D, 0x0347434D, 0x0447434D, 0x0547434D, 0x0047434D, 0 };
+ }
+
+ public override ImageMetaData ReadMetaData (IBinaryStream file)
+ {
+ var header = file.ReadHeader (0x10);
+ byte type = header[3];
+ if (!header.AsciiEqual (0, "MCG") || type > 7)
+ return null;
+ return new McgMetaData {
+ Width = BigEndian.ToUInt16 (header, 12),
+ Height = BigEndian.ToUInt16 (header, 14),
+ OffsetX = BigEndian.ToInt16 (header, 8),
+ OffsetY = BigEndian.ToInt16 (header, 10),
+ BPP = 5 == type || 4 == type ? 8 : 32,
+ Method = type,
+ };
+ }
+
+ public override ImageData Read (IBinaryStream file, ImageMetaData info)
+ {
+ var reader = new McgReader (file, (McgMetaData)info);
+ return reader.Unpack();
+ }
+
+ public override void Write (Stream file, ImageData image)
+ {
+ throw new System.NotImplementedException ("McgFormat.Write not implemented");
+ }
+ }
+
+ internal class McgReader
+ {
+ IBinaryStream m_input;
+ McgMetaData m_info;
+ byte[] m_output;
+ int m_stride;
+
+ public McgReader (IBinaryStream input, McgMetaData info)
+ {
+ m_input = input;
+ m_info = info;
+ m_stride = (int)m_info.Width * (m_info.BPP / 8);
+ m_output = new byte[m_stride * (int)m_info.Height];
+ }
+
+ public ImageData Unpack ()
+ {
+ m_input.Position = 0x10;
+ switch (m_info.Method)
+ {
+ case 0: UnpackV0(); break;
+ case 4:
+ case 1: UnpackV1(); break;
+ case 2: UnpackRgbRle (3); break;
+ case 3: UnpackRgbRle (4); break;
+ case 5: UnpackV5(); break;
+ case 6:
+ case 7: break;
+ default: throw new InvalidFormatException();
+ }
+ PixelFormat format = 8 == m_info.BPP ? PixelFormats.Gray8
+ : 3 == m_info.Method ? PixelFormats.Bgra32
+ : PixelFormats.Bgr32;
+ return ImageData.CreateFlipped (m_info, format, null, m_output, m_stride);
+ }
+
+ void UnpackV0 ()
+ {
+ for (int c = 0; c < 3; c++)
+ for (int dst = c; dst < m_output.Length; dst += 4)
+ {
+ m_output[dst] = m_input.ReadUInt8();
+ }
+ }
+
+ void UnpackV1 ()
+ {
+ m_input.Read (m_output, 0, m_output.Length);
+ }
+
+ void UnpackRgbRle (int channels)
+ {
+ byte rle_code = m_input.ReadUInt8();
+ for (int c = 0; c < channels; c++)
+ for (int dst = c; dst < m_output.Length; )
+ {
+ byte code = m_input.ReadUInt8();
+ if (code == rle_code)
+ {
+ int count = m_input.ReadUInt8();
+ byte v = m_input.ReadUInt8();
+ for (int i = 0; i < count; ++i)
+ {
+ m_output[dst] = v;
+ dst += 4;
+ }
+ }
+ else
+ {
+ m_output[dst] = code;
+ dst += 4;
+ }
+ }
+ }
+
+ void UnpackV5 ()
+ {
+ byte rle_code = m_input.ReadUInt8();
+ int dst = 0;
+ while (dst < m_output.Length)
+ {
+ byte code = m_input.ReadUInt8();
+ if (code == rle_code)
+ {
+ int count = m_input.ReadUInt8();
+ byte v = m_input.ReadUInt8();
+ for (int i = 0; i < count; ++i)
+ {
+ m_output[dst++] = v;
+ }
+ }
+ else
+ {
+ m_output[dst++] = code;
+ }
+ }
+ }
+ }
+}