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added audio resource format.
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morkt
parent
0164ce838a
commit
07ea1b9af7
167
GameRes/Audio.cs
Normal file
167
GameRes/Audio.cs
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@ -0,0 +1,167 @@
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//! \file Audio.cs
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//! \date Tue Nov 04 17:35:54 2014
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//! \brief audio format class.
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//
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// Copyright (C) 2014 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.IO;
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namespace GameRes
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{
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public struct WaveFormat
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{
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public ushort FormatTag;
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public ushort Channels;
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public uint SamplesPerSecond;
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public uint AverageBytesPerSecond;
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public ushort BlockAlign;
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public ushort BitsPerSample;
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}
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public abstract class SoundInput : Stream
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{
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protected Stream m_input;
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protected long m_pcm_size;
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public override bool CanRead { get { return m_input.CanRead; } }
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public override bool CanWrite { get { return false; } }
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public override long Length { get { return m_pcm_size; } }
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public long PcmSize
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{
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get { return m_pcm_size; }
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protected set { m_pcm_size = value; }
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}
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public abstract int SourceBitrate { get; }
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public WaveFormat Format { get; protected set; }
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protected SoundInput (Stream input)
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{
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m_input = input;
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}
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public virtual void Reset ()
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{
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Position = 0;
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}
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#region System.IO.Stream methods
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public override void Flush()
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{
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m_input.Flush();
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}
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public override long Seek(long offset, SeekOrigin origin)
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{
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if (origin == SeekOrigin.Begin)
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Position = offset;
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else if (origin == SeekOrigin.Current)
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Position += offset;
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else
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Position = Length + offset;
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return Position;
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}
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public override void SetLength (long length)
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{
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throw new System.NotSupportedException ("SoundInput.SetLength method is not supported");
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}
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public override void Write (byte[] buffer, int offset, int count)
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{
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throw new System.NotSupportedException ("SoundInput.Write method is not supported");
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}
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public override void WriteByte (byte value)
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{
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throw new System.NotSupportedException ("SoundInput.WriteByte method is not supported");
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}
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#endregion
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#region IDisposable Members
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bool disposed = false;
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protected override void Dispose (bool disposing)
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{
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if (!disposed)
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{
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if (disposing)
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{
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m_input.Dispose();
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}
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disposed = true;
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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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public abstract class AudioFormat : IResource
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{
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public override string Type { get { return "audio"; } }
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public abstract SoundInput TryOpen (Stream file);
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public static SoundInput Read (Stream file)
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{
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var input = new MemoryStream();
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file.CopyTo (input);
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try
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{
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var sound = FindFormat (input);
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if (null != sound)
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input = null; // input stream is owned by sound object now, don't dispose it
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return sound;
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}
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finally
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{
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if (null != input)
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input.Dispose();
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}
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}
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public static SoundInput FindFormat (Stream file)
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{
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uint signature = FormatCatalog.ReadSignature (file);
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for (;;)
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{
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var range = FormatCatalog.Instance.LookupSignature<AudioFormat> (signature);
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foreach (var impl in range)
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{
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try
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{
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file.Position = 0;
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SoundInput sound = impl.TryOpen (file);
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if (null != sound)
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return sound;
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}
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catch { }
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}
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if (0 == signature)
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break;
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signature = 0;
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}
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return null;
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}
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}
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}
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158
GameRes/AudioWAV.cs
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158
GameRes/AudioWAV.cs
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@ -0,0 +1,158 @@
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//! \file AudioWAV.cs
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//! \date Tue Nov 04 18:22:37 2014
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//! \brief WAVE audio format implementation.
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//
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// Copyright (C) 2014 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.ComponentModel.Composition;
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using System.IO;
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namespace GameRes
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{
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public class WaveInput : SoundInput
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{
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long m_data_offset;
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public override long Position
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{
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get { return m_input.Position - m_data_offset; }
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set { m_input.Position = m_data_offset + 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 (int)Format.AverageBytesPerSecond * 8; }
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}
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public WaveInput (Stream file) : base (file)
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{
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using (var input = new BinaryReader (m_input, System.Text.Encoding.UTF8, true))
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{
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input.BaseStream.Seek (8, SeekOrigin.Current);
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uint header = input.ReadUInt32();
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if (header != 0x45564157)
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throw new InvalidFormatException ("Invalid WAVE file format.");
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bool found_fmt = false;
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bool found_data = false;
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long current_offset = input.BaseStream.Position;
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while (!found_fmt || !found_data)
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{
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uint header0 = input.ReadUInt32();
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uint header1 = input.ReadUInt32();
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if (!found_fmt && 0x20746d66 == header0)
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{
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if (header1 < 0x10)
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throw new InvalidFormatException ("Invalid WAVE file format");
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ushort tag = input.ReadUInt16();
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if (1 != tag)
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throw new InvalidFormatException ("Unsupported WAVE file format.");
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var format = new WaveFormat();
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format.FormatTag = tag;
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format.Channels = input.ReadUInt16();
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format.SamplesPerSecond = input.ReadUInt32();
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format.AverageBytesPerSecond = input.ReadUInt32();
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format.BlockAlign = input.ReadUInt16();
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format.BitsPerSample = input.ReadUInt16();
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this.Format = format;
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found_fmt = true;
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current_offset += 8 + ((header1 + 1) & ~1);
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input.BaseStream.Seek (current_offset, SeekOrigin.Begin);
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continue;
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}
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if (!found_data && 0x61746164 == header0)
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{
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found_data = true;
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m_data_offset = current_offset + 8;
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this.PcmSize = header1;
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if (found_fmt)
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break;
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}
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long chunk_size = (header1 + 1) & ~1;
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input.BaseStream.Seek (chunk_size, SeekOrigin.Current);
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current_offset += 8 + chunk_size;
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}
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this.Reset();
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}
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}
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public override void Reset ()
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{
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m_input.Seek (m_data_offset, SeekOrigin.Begin);
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}
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public override long Seek (long offset, SeekOrigin origin)
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{
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if (SeekOrigin.Begin == origin)
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offset += m_data_offset;
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else if (SeekOrigin.Current == origin)
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offset = m_input.Position + offset;
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else if (SeekOrigin.End == origin)
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offset = m_data_offset + PcmSize + offset;
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if (offset < m_data_offset)
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offset = m_data_offset;
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else if (offset > m_data_offset + PcmSize)
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offset = m_data_offset + PcmSize;
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offset = m_input.Seek (offset, SeekOrigin.Begin);
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return offset - m_data_offset;
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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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long remaining = PcmSize - Position;
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if (count > remaining)
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count = (int)remaining;
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return m_input.Read (buffer, offset, count);
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}
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public override int ReadByte ()
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{
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if (Position < PcmSize)
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return m_input.ReadByte();
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else
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return -1;
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}
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}
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[Export(typeof(AudioFormat))]
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public class WaveAudio : AudioFormat
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{
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public override string Tag { get { return "WAV"; } }
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public override string Description { get { return "Wave audio format"; } }
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public override uint Signature { get { return 0x46464952; } } // 'RIFF'
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public override SoundInput TryOpen (Stream file)
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{
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return new WaveInput (file);
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}
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}
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}
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@ -276,6 +276,8 @@ namespace GameRes
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private IEnumerable<ArchiveFormat> m_arc_formats;
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[ImportMany(typeof(ImageFormat))]
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private IEnumerable<ImageFormat> m_image_formats;
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[ImportMany(typeof(AudioFormat))]
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private IEnumerable<AudioFormat> m_audio_formats;
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[ImportMany(typeof(ScriptFormat))]
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private IEnumerable<ScriptFormat> m_script_formats;
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#pragma warning restore 649
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@ -288,6 +290,7 @@ namespace GameRes
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public IEnumerable<ArchiveFormat> ArcFormats { get { return m_arc_formats; } }
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public IEnumerable<ImageFormat> ImageFormats { get { return m_image_formats; } }
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public IEnumerable<AudioFormat> AudioFormats { get { return m_audio_formats; } }
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public IEnumerable<ScriptFormat> ScriptFormats { get { return m_script_formats; } }
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public Exception LastError { get; set; }
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@ -310,6 +313,7 @@ namespace GameRes
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container.ComposeParts (this);
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AddResourceImpl (m_arc_formats);
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AddResourceImpl (m_image_formats);
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AddResourceImpl (m_audio_formats);
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AddResourceImpl (m_script_formats);
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}
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@ -51,6 +51,8 @@
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<ItemGroup>
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<Compile Include="ArcFile.cs" />
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<Compile Include="ArcView.cs" />
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<Compile Include="Audio.cs" />
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<Compile Include="AudioWAV.cs" />
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<Compile Include="GameRes.cs" />
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<Compile Include="Image.cs" />
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<Compile Include="ImageBMP.cs" />
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