/// <summary>
/// Return a stream writer for the passed path name
/// </summary>
/// <param name="path">The path name</param>
/// <returns>An existing or new stream writer</returns>
public StreamWriter GetStreamWriter(string path)
{
CachedStream cs = null;
using(Locker.AcquireReaderLock(_lock))
{
if (!_streamCache.TryGetValue(path, out cs))
{
using (Locker.UpgradeToWriterLock(_lock))
{
Stream stream = GetStream(path);
cs = new CachedStream() { StreamWriter = new StreamWriter(stream) };
_streamCache.Add(path, cs);
}
}
}
cs.LastAccessTime = DateTime.Now;
return cs.StreamWriter;
}
public DdrPs2FileDataTableChunk GetUnbound(Stream stream)
{
var cache = new CachedStream(stream);
var cacheReader = new BinaryReader(cache);
using var snapshot = new SnapshotStream(cache);
var snapshotReader = new BinaryReader(snapshot);
var firstFile = snapshotReader.ReadInt32();
var tableSize = firstFile / 4 * 4;
var table = Enumerable.Range(0, firstFile / 4).Select(_ => snapshotReader.ReadInt32()).ToArray();
var skip = firstFile - tableSize;
int index;
if (skip > 0)
{
snapshotReader.ReadBytes(skip);
}
for (index = 1; index < table.Length; index++)
{
if (table[index] < table[index - 1])
{
break;
}
}
// Warning: big heckin' hack.
// We're looking for a TCB table, which puts headers on all the file entries.
// There's no way to tell easily outside of this function, so...
var prevPosition = cache.Position;
cache.Position = table[0];
var headTest0 = cacheReader.ReadInt32();
var headTest1 = cacheReader.ReadInt32();
var headTest2 = cacheReader.ReadInt32();
var hasHeaders = headTest0 > 0 && headTest1 > 0 && headTest2 > 0 &&
headTest2 > headTest1 && headTest1 > headTest0 &&
(headTest0 & 0x3) == 0 &&
((headTest0 | headTest1 | headTest2) >> 24) == 0;
cache.Position = prevPosition;
var desiredPosition = table[index - 1];
snapshotReader.ReadBytes((int)(desiredPosition - prevPosition));
if (hasHeaders)
{
snapshotReader.ReadBytes(0xC);
}
try
{
_bemaniLzDecoder.Decode(snapshot);
}
catch (Exception)
{
return(null);
}
return(new DdrPs2FileDataTableChunk
{
Data = snapshot.ToArray(),
HasHeaders = hasHeaders
});
}
public void Test_Export_SN_WAV()
{
using var mdSource = new FileStream(ExecutablePath, FileMode.Open, FileAccess.Read);
var metadataDecoder = Resolve <IDdrPs2MetadataTableStreamReader>();
var dbDecoder = Resolve <IDdrPs2DatabaseDecoder>();
var rawMetaDatas = metadataDecoder.Get(mdSource, mdSource.Length).Select(dbDecoder.Decode)
.OrderBy(x => x.AudioTrack).ToList();
foreach (var md in rawMetaDatas)
{
TestContext.WriteLine($"{md}");
}
var firstSongIndex = rawMetaDatas.Where(x => x.AudioTrack > 0).Select(x => x.AudioTrack).Min();
using var source = new FileStream(FileDataPath, FileMode.Open, FileAccess.Read);
var vagDecoder = Resolve <VagDecoder>();
// var metadataDecorator = Resolve<IDdrMetadataDecorator>();
// var ssqDecoder = Resolve<ISsqDecoder>();
// var smEncoder = Resolve<ISmEncoder>();
// var smWriter = Resolve<ISmStreamWriter>();
var soundIndex = 0;
// var chartIndex = 0;
var max = source.Length - 0x800;
// var ssqHeuristic = Resolve<SsqHeuristic>();
var bgmHeuristic = Resolve <BeatmaniaPs2NewBgmHeuristic>();
var cache = new CachedStream(source);
for (var offset = 0L; offset < max; offset += 0x800)
{
source.Position = offset;
cache.Reset();
// if (ssqHeuristic.Match(cache) is HeuristicResult ssqResult)
// {
// cache.Rewind();
// var charts = ssqDecoder.Decode(ssqHeuristic.Read(ssqResult, cache));
// // var idMd = rawMetaDatas.FirstOrDefault(md => md.InternalId == chartIndex + 1);
//
// var chartSet = new ChartSet
// {
// Charts = charts,
// Metadata = new Metadata()
// };
//
// // metadataDecorator.Decorate(chartSet, idMd, new MetadataDecoratorFileExtensions());
// var commands = smEncoder.Encode(chartSet);
// using var stream = this.OpenWrite(Path.Combine(OutPath, $"{chartIndex:D4}.sm"));
// smWriter.Write(stream, commands);
// stream.Flush();
// chartIndex++;
//
// continue;
// }
// cache.Rewind();
if (bgmHeuristic.Match(cache) is HeuristicResult bgmResult)
{
cache.Rewind();
//var idMd = rawMetaDatas.FirstOrDefault(md => md.AudioTrack == soundIndex + firstSongIndex);
//var idMd = soundIndex >= rawMetaDatas.Count ? null : rawMetaDatas[soundIndex];
var fileName = $"{soundIndex:D4}"; //idMd?.Id ?? $"{soundIndex:D4}";
var vag = bgmHeuristic.Read(bgmResult, cache);
var decoded = vagDecoder.Decode(vag);
this.WriteSound(decoded, Path.Combine(OutPath, $"{fileName}.wav"));
soundIndex++;
}
}
}
