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(MGS): archive could contain non-WAV files too.

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This commit is contained in:
morkt 2017-11-21 10:12:07 +04:00
parent 4967aae168
commit f5a847c966
1 changed files with 38 additions and 35 deletions
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73
ArcFormats/Masys/ArcMGD.cs
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@ -95,6 +95,7 @@ namespace GameRes.Formats.Megu
public ushort Channels;
public uint SamplesPerSecond;
public ushort BitsPerSample;
public byte Format;
}
[Export(typeof(ArchiveFormat))]
@ -118,11 +119,9 @@ namespace GameRes.Formats.Megu
var dir = new List<Entry> (count);
int index_offset = 0x22;
byte[] name_buf = new byte[16];
for (uint i = 0; i < count; ++i)
for (int i = 0; i < count; ++i)
{
ushort channels = file.View.ReadUInt16 (index_offset+1);
uint rate = file.View.ReadUInt32 (index_offset+3);
ushort bits = file.View.ReadUInt16 (index_offset+7);
byte format = file.View.ReadByte (index_offset);
int name_size = file.View.ReadByte (index_offset+9);
if (0 == name_size)
return null;
@ -131,18 +130,20 @@ namespace GameRes.Formats.Megu
file.View.Read (index_offset+10, name_buf, 0, (uint)name_size);
if (100 == flag)
MgdOpener.Decrypt (name_buf, 0, name_size);
index_offset += 10 + name_size;
var name = Encodings.cp932.GetString (name_buf, 0, name_size);
name = Path.ChangeExtension (name, GetExtFromFormatId (format));
var entry = new MgsEntry
var entry = FormatCatalog.Instance.Create<MgsEntry> (name);
entry.Format = format;
if (0 == format)
{
Name = Encodings.cp932.GetString (name_buf, 0, name_size) + ".wav",
Type = "audio",
Size = file.View.ReadUInt32 (index_offset),
Offset = file.View.ReadUInt32 (index_offset + 4),
Channels = channels,
SamplesPerSecond = rate,
BitsPerSample = bits,
};
entry.Channels = file.View.ReadUInt16 (index_offset+1);
entry.SamplesPerSecond = file.View.ReadUInt32 (index_offset+3);
entry.BitsPerSample = file.View.ReadUInt16 (index_offset+7);
}
index_offset += 10 + name_size;
entry.Size = file.View.ReadUInt32 (index_offset);
entry.Offset = file.View.ReadUInt32 (index_offset + 4);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
@ -154,30 +155,32 @@ namespace GameRes.Formats.Megu
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var went = entry as MgsEntry;
if (null == went)
if (null == went || went.Format != 0)
return arc.File.CreateStream (entry.Offset, entry.Size);
var riff = new byte[0x2c];
using (var buf = new MemoryStream (riff))
using (var wav = new BinaryWriter (buf))
using (var riff = new MemoryStream (0x2C))
{
wav.Write (0x46464952); // 'RIFF'
uint total_size = 0x2c - 8 + entry.Size;
wav.Write (total_size);
wav.Write (0x45564157); // 'WAVE'
wav.Write (0x20746d66); // 'fmt '
wav.Write (0x10);
wav.Write ((ushort)1);
wav.Write (went.Channels);
wav.Write (went.SamplesPerSecond);
uint bps = went.SamplesPerSecond * went.Channels * went.BitsPerSample / 8;
wav.Write (bps);
wav.Write ((ushort)2);
wav.Write (went.BitsPerSample);
wav.Write (0x61746164); // 'data'
wav.Write (went.Size);
wav.Flush ();
ushort align = (ushort)(went.Channels * went.BitsPerSample / 8);
var format = new WaveFormat {
FormatTag = 1,
Channels = went.Channels,
SamplesPerSecond = went.SamplesPerSecond,
AverageBytesPerSecond = went.SamplesPerSecond * align,
BlockAlign = align,
BitsPerSample = went.BitsPerSample,
};
WaveAudio.WriteRiffHeader (riff, format, entry.Size);
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new PrefixStream (riff, input);
return new PrefixStream (riff.ToArray(), input);
}
}
internal static string GetExtFromFormatId (int id)
{
switch (id)
{
case 0: return "wav";
case 1: return "mid";
default: return null;
}
}
}