diff --git a/ArcFormats/AnimeGameSystem/AudioPCM.cs b/ArcFormats/AnimeGameSystem/AudioPCM.cs new file mode 100644 index 00000000..4d716016 --- /dev/null +++ b/ArcFormats/AnimeGameSystem/AudioPCM.cs @@ -0,0 +1,120 @@ +//! \file AudioPCM.cs +//! \date Thu Nov 05 05:33:48 2015 +//! \brief AnimeGameSystem raw PCM audio. +// +// 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; +using System.ComponentModel.Composition; +using System.IO; + +namespace GameRes.Formats.Ags +{ + [Export(typeof(AudioFormat))] + public class PcmAudio : WaveAudio + { + public override string Tag { get { return "PCM/AGS"; } } + public override string Description { get { return "AnimeGameSystem PCM audio"; } } + public override uint Signature { get { return 0; } } + + public PcmAudio () + { + Extensions = new string[] { "pcm" }; + } + + public override SoundInput TryOpen (Stream file) + { + uint signature = FormatCatalog.ReadSignature (file) & 0xFFFFFF; + if (0x564157 != signature) // 'WAV' + return null; + return new PcmInput (file); + } + } + + public class PcmInput : SoundInput + { + public override string SourceFormat { get { return "raw"; } } + + public override int SourceBitrate + { + get { return (int)Format.AverageBytesPerSecond * 8; } + } + + public PcmInput (Stream file) : base (null) + { + file.Position = 3; + int type = file.ReadByte(); + int data_length = (int)file.Length - 4; + var format = new WaveFormat(); + format.FormatTag = 1; + format.Channels = (ushort)((type & 1) + 1); + type &= ~1; + if (0xA == type) + { + format.SamplesPerSecond = 44100; + format.BitsPerSample = 16; + } + else if (6 == type) + { + format.SamplesPerSecond = 22050; + format.BitsPerSample = 16; + } + else if (4 == type) + { + format.SamplesPerSecond = 22050; + format.BitsPerSample = 8; + } + else + throw new NotSupportedException ("Not supported PCM format"); + format.BlockAlign = (ushort)(format.Channels*format.BitsPerSample/8); + format.AverageBytesPerSecond = format.SamplesPerSecond*format.BlockAlign; + this.Format = format; + this.PcmSize = data_length; + this.Source = new StreamRegion (file, 4, data_length); + } + + #region IO.Stream methods + public override long Position + { + get { return Source.Position; } + set { Source.Position = value; } + } + + public override bool CanSeek { get { return Source.CanSeek; } } + + public override long Seek (long offset, SeekOrigin origin) + { + return Source.Seek (offset, origin); + } + + public override int Read (byte[] buffer, int offset, int count) + { + return Source.Read (buffer, offset, count); + } + + public override int ReadByte () + { + return Source.ReadByte(); + } + #endregion + } +}