ClassiCube/Launcher2/Patcher/SoundPatcher.cs

100 lines
3.2 KiB
C#

// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
using System;
using System.IO;
using ClassicalSharp.Network;
using SharpWave;
using SharpWave.Codecs.Vorbis;
namespace Launcher {
public sealed class SoundPatcher {
string[] files, identifiers;
string prefix, nextAction;
public bool Done;
public SoundPatcher( string[] files, string prefix, string nextAction ) {
this.files = files;
this.prefix = prefix;
this.nextAction = nextAction;
}
const StringComparison comp = StringComparison.OrdinalIgnoreCase;
public void FetchFiles( string baseUrl, string altBaseUrl, ResourceFetcher fetcher ) {
identifiers = new string[files.Length];
for( int i = 0; i < files.Length; i++ )
identifiers[i] = prefix + files[i].Substring( 1 );
for( int i = 0; i < files.Length; i++ ) {
string loc = files[i][0] == 'A' ? baseUrl : altBaseUrl;
string url = loc + files[i].Substring( 1 ) + ".ogg";
fetcher.downloader.DownloadData( url, false, identifiers[i] );
}
}
public bool CheckDownloaded( ResourceFetcher fetcher, Action<string> setStatus ) {
if( Done ) return true;
for( int i = 0; i < identifiers.Length; i++ ) {
DownloadedItem item;
if( fetcher.downloader.TryGetItem( identifiers[i], out item ) ) {
Console.WriteLine( "got sound " + identifiers[i] );
if( item.Data == null ) {
setStatus( "&cFailed to download " + identifiers[i] );
return false;
}
DecodeSound( files[i].Substring( 1 ), (byte[])item.Data );
// TODO: setStatus( next );
if( i == identifiers.Length - 1 ) {
Done = true;
setStatus( fetcher.MakeNext( nextAction ) );
} else {
setStatus( fetcher.MakeNext( identifiers[i + 1] ) );
}
}
}
return true;
}
void DecodeSound( string name, byte[] rawData ) {
string path = Path.Combine( Program.AppDirectory, "audio" );
path = Path.Combine( path, prefix + name + ".wav" );
using( FileStream dst = File.Create( path ) )
using ( MemoryStream src = new MemoryStream( rawData ) )
{
dst.SetLength( 44 );
RawOut output = new RawOut( dst, true );
OggContainer container = new OggContainer( src );
output.PlayStreaming( container );
dst.Position = 0;
BinaryWriter w = new BinaryWriter( dst );
WriteWaveHeader( w, dst, output );
}
}
void WriteWaveHeader( BinaryWriter w, Stream stream, RawOut data ) {
WriteFourCC( w, "RIFF" );
w.Write( (int)(stream.Length - 8) );
WriteFourCC( w, "WAVE" );
WriteFourCC( w, "fmt " );
w.Write( 16 );
w.Write( (ushort)1 ); // audio format, PCM
w.Write( (ushort)data.Channels );
w.Write( data.Frequency );
w.Write((data.Frequency * data.Channels * data.BitsPerSample) / 8 ); // byte rate
w.Write( (ushort)((data.Channels * data.BitsPerSample) / 8) ); // block align
w.Write( (ushort)data.BitsPerSample );
WriteFourCC( w, "data" );
w.Write( (int)(stream.Length - 44) );
}
void WriteFourCC( BinaryWriter w, string fourCC ) {
w.Write( (byte)fourCC[0] ); w.Write( (byte)fourCC[1] );
w.Write( (byte)fourCC[2] ); w.Write( (byte)fourCC[3] );
}
}
}