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implemented MP3 audio wrapper.
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@ -38,6 +38,10 @@
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<BaseAddress>6291456</BaseAddress>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="NAudio, Version=1.7.2.19, Culture=neutral, processorArchitecture=MSIL">
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<SpecificVersion>False</SpecificVersion>
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<HintPath>..\packages\NAudio.1.7.2\lib\net35\NAudio.dll</HintPath>
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</Reference>
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<Reference Include="NVorbis, Version=0.8.4.0, Culture=neutral, processorArchitecture=MSIL">
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<SpecificVersion>False</SpecificVersion>
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<HintPath>..\packages\NVorbis.0.8.4.0\lib\NVorbis.dll</HintPath>
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@ -105,6 +109,7 @@
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<Compile Include="ArcXFL.cs" />
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<Compile Include="ArcXP3.cs" />
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<Compile Include="ArcYPF.cs" />
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<Compile Include="AudioMP3.cs" />
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<Compile Include="AudioOGV.cs" />
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<Compile Include="AudioPMW.cs" />
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<Compile Include="AudioWADY.cs" />
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135
ArcFormats/AudioMP3.cs
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135
ArcFormats/AudioMP3.cs
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@ -0,0 +1,135 @@
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//! \file AudioMP3.cs
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//! \date Fri May 01 22:04:37 2015
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//! \brief MP3 wrapper for GameRes.
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//
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// Copyright (C) 2015 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel.Composition;
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using System.IO;
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using NAudio;
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using NAudio.Wave;
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namespace GameRes.Formats
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{
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public class Mp3Input : SoundInput
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{
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int m_bitrate;
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Stream m_source;
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public override long Position
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{
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get { return m_input.Position; }
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set { m_input.Position = value; }
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}
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public override bool CanSeek { get { return m_input.CanSeek; } }
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public override int SourceBitrate
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{
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get { return m_bitrate; }
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}
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public Mp3Input (Stream file) : base (file)
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{
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var rdr = new Mp3FileReader (m_input);
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var wav = WaveFormatConversionStream.CreatePcmStream (rdr);
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var bar = new BlockAlignReductionStream (wav);
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m_source = m_input;
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m_input = bar;
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m_bitrate = rdr.Mp3WaveFormat.AverageBytesPerSecond*8;
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var format = new GameRes.WaveFormat();
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format.FormatTag = (ushort)wav.WaveFormat.Encoding;
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format.Channels = (ushort)wav.WaveFormat.Channels;
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format.SamplesPerSecond = (uint)wav.WaveFormat.SampleRate;
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format.BitsPerSample = (ushort)wav.WaveFormat.BitsPerSample;
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format.BlockAlign = (ushort)bar.BlockAlign;
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format.AverageBytesPerSecond = (uint)wav.WaveFormat.AverageBytesPerSecond;
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this.Format = format;
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this.PcmSize = m_input.Length;
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}
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public override int Read(byte[] buffer, int offset, int count)
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{
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return m_input.Read (buffer, offset, count);
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}
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#region IDisposable Members
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protected override void Dispose (bool disposing)
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{
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if (null != m_source)
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{
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if (disposing)
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{
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m_source.Dispose();
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}
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m_source = null;
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base.Dispose (disposing);
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}
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}
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#endregion
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}
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[Export(typeof(AudioFormat))]
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public class Mp3Audio : AudioFormat
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{
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public override string Tag { get { return "MP3"; } }
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public override string Description { get { return "MPEG Layer 3 audio format"; } }
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public override uint Signature { get { return 0; } }
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public override SoundInput TryOpen (Stream file)
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{
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byte[] header = new byte[10];
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if (header.Length != file.Read (header, 0, header.Length))
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return null;
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long start_offset = SkipId3Tag (header);
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if (0 != start_offset)
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{
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file.Position = start_offset;
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if (4 != file.Read (header, 0, 4))
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return null;
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}
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if (0xff != header[0] || 0xf2 != (header[1] & 0xf6) || 0xf0 == (header[2] & 0xf0))
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return null;
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file.Position = 0;
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return new Mp3Input (file);
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}
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long SkipId3Tag (byte[] buffer)
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{
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long start_offset = 0;
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if (0x49 == buffer[0] && 0x44 == buffer[1] && 0x33 == buffer[2]) // 'ID3'
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{
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if (buffer[3] < 0x80 && buffer[4] < 0x80 &&
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buffer[6] < 0x80 && buffer[7] < 0x80 && buffer[8] < 0x80 && buffer[9] < 0x80)
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{
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int size = buffer[6] << 21 | buffer[7] << 14 | buffer[8] << 7 | buffer[9];
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if (buffer[3] > 3 && 0 != (buffer[5] & 0x10)) // v2.4 footer present
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size += 10;
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start_offset = 10 + size;
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}
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}
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return start_offset;
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}
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}
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}
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@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion ("1.0.4.46")]
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[assembly: AssemblyFileVersion ("1.0.4.46")]
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[assembly: AssemblyVersion ("1.0.4.47")]
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[assembly: AssemblyFileVersion ("1.0.4.47")]
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