public static bool ExtractRawFromSourceToFile(string outfile, string afcPath, int dataSize, int dataOffset)
{
var ms = ExternalFileHelper.ReadExternalData(afcPath, dataOffset, dataSize);
if (ms is null)
{
return(false);
}
if (File.Exists(outfile))
{
File.Delete(outfile);
}
ms.WriteToFile(outfile);
return(true);
}
public void DeserializeLargeDynamic()
{
dynamic d;
using (var jsonFile = System.IO.File.OpenText(ExternalFileHelper.GetFilePath("large.json")))
using (JsonTextReader jsonTextReader = new JsonTextReader(jsonFile))
{
JsonSerializer serializer = new JsonSerializer();
d = serializer.Deserialize(jsonTextReader);
}
IDictionary <string, int> counts = new Dictionary <string, int>();
Stopwatch sw = new Stopwatch();
sw.Start();
int count = 0;
foreach (dynamic o in d)
{
if (count > 10)
{
break;
}
foreach (dynamic friend in o.friends)
{
UpdateValueCount(counts, friend.id);
UpdateValueCount(counts, ((string)friend.name).Split(' ')[0]);
}
count++;
}
Console.WriteLine("Time (secs): " + sw.Elapsed.TotalSeconds);
}
private AudioInfo GetAudioInfo(string afc)
{
try
{
AudioInfo ai = new AudioInfo();
var dataStream = ExternalFileHelper.ReadExternalData(afc, DataOffset, DataSize);
using EndianReader er = new EndianReader(dataStream);
var header = er.ReadStringASCII(4);
if (header == "RIFX")
{
er.Endian = Endian.Big;
}
if (header == "RIFF")
{
er.Endian = Endian.Little;
}
// Position 4
er.Seek(0xC, SeekOrigin.Current); // Post 'fmt ', get fmt size
var fmtSize = er.ReadInt32();
var postFormatPosition = er.Position;
ai.CodecID = er.ReadUInt16();
switch (ai.CodecID)
{
case 0xFFFF:
ai.CodecName = "Vorbis";
break;
case 0x0166:
ai.CodecName = "XMA2";
break;
default:
ai.CodecName = $"Unknown codec ID {ai.CodecID}";
break;
}
ai.Channels = er.ReadUInt16();
ai.SampleRate = er.ReadUInt32();
er.ReadInt32(); //Average bits per second
er.ReadUInt16(); //Alignment. VGMStream shows this is 16bit but that doesn't seem right
ai.BitsPerSample = er.ReadUInt16(); //Bytes per sample. For vorbis this is always 0!
var extraSize = er.ReadUInt16();
if (extraSize == 0x30)
{
// Newer Wwise
er.Seek(postFormatPosition + 0x18, SeekOrigin.Begin);
ai.SampleCount = er.ReadUInt32();
}
else
{
if (ai.CodecID == 0xFFFF)
{
// Vorbis
er.Seek(0x14 + fmtSize, SeekOrigin.Begin);
var chunkName = er.ReadStringASCII(4);
while (!chunkName.Equals("vorb", StringComparison.InvariantCultureIgnoreCase))
{
er.Seek(er.ReadInt32(), SeekOrigin.Current);
chunkName = er.ReadStringASCII(4);
}
er.SkipInt32(); //Skip vorb size
ai.SampleCount = er.ReadUInt32();
}
else if (ai.CodecID == 0x0166)
{
// XMA2 (360)
// This calculation is wrong.
// See https://github.com/losnoco/vgmstream/blob/master/src/meta/wwise.c#L484
// and
// https://github.com/losnoco/vgmstream/blob/b61908f3af892714dda09c143a52fe0d65228985/src/coding/coding_utils.c#L767
// Seems correct, but will need to investigate why it's wrong. Example file is 543 in BioSnd_OmgPrA.xxx Xenon ME2
er.Seek(0x14 + 0x18, SeekOrigin.Begin); //Start of fmt + 0x18
ai.SampleCount = er.ReadUInt32();
}
else
{
// UNKNOWN!!
Debug.WriteLine("Unknown codec ID!");
}
}
// We don't care about the rest.
return(ai);
}
catch (Exception)
{
return(null);
}
}
