public static void ToStream(Stream writer, StreamSection packet)
{
switch (packet.Type)
{
case SectionType.Subtitle: SubtitleSection.ToStream(writer, (SubtitleSection)packet); break;
case SectionType.EndOfStream: EndOfStreamSection.ToStream(writer, (EndOfStreamSection)packet); break;
case SectionType.Raw: RawSection.ToStream(writer, (RawSection)packet); break;
}
}
public static void ToStream(Stream writer, EndOfStreamSection packet)
{
writer.WriteBE(packet.LanguageID);
writer.WriteBE(packet.StreamID);
writer.WriteBE(packet.Length);
writer.WriteBE(packet.Value);
writer.Write(0u);
writer.WriteOffset(0x800);
}
public static StreamSection FromStream(Stream reader)
{
var id = reader.ReadUInt32BE() & 0xff;
reader.Seek(-4, SeekOrigin.Current);
switch (id)
{
case 0x04: return(SubtitleSection.FromStream(reader));
case 0xF0: return(EndOfStreamSection.FromStream(reader));
default: return(RawSection.FromStream(reader));
}
}
public static new EndOfStreamSection FromStream(Stream reader)
{
var packet = new EndOfStreamSection();
packet.LanguageID = reader.ReadUInt16BE();
packet.StreamID = reader.ReadUInt16BE();
packet.Length = reader.ReadUInt32BE();
packet.Value = reader.ReadUInt32BE();
uint dummy = reader.ReadUInt32BE();
Debug.Assert(dummy == 0);
reader.Offset(0x800);
return(packet);
}
public static void ApplyTranslation(string originalPath, string outputPath)
{
var index = 0;
var subtitleLocation = originalPath.Remove(originalPath.LastIndexOf('.'));
var set = LoadSubtitle(index, subtitleLocation);
var buffer = new Dictionary <long, byte[]>();
using (var output = File.Create(outputPath))
using (var input = File.OpenRead(originalPath))
{
while (input.Position < input.Length)
{
var section = StreamSection.FromStream(input);
switch (section.Type)
{
case SectionType.Raw:
var rawSection = section as RawSection;
using (var ms = new MemoryStream())
{
RawSection.ToStream(ms, rawSection);
AppendToBuffer(buffer, rawSection.First, ms.ToArray());
}
break;
case SectionType.EndOfStream:
if (buffer.Count > 0)
{
var source = buffer.ToArray().OrderBy(x => x.Key);
foreach (var item in source)
{
output.Write(item.Value);
}
buffer.Clear();
}
EndOfStreamSection.ToStream(output, section as EndOfStreamSection);
index++;
set = LoadSubtitle(index, subtitleLocation);
break;
case SectionType.Subtitle:
var subtitleSection = section as SubtitleSection;
SubtitleSection loaded;
using (var ms = new MemoryStream())
{
if (set != null && set.TryGetValue(GetKey(subtitleSection), out loaded))
{
if (loaded.Texts.Where(x => x.TranslatedText != null).Count() > 0)
{
var copy = loaded.Texts.ToArray();
for (int i = 0; i < copy.Length; i++)
{
loaded.Texts.Clear();
loaded.Texts.Add(copy[i]);
loaded.BaseTime = copy[i].Start;
SubtitleSection.ToStreamTranslated(ms, loaded);
AppendToBuffer(buffer, loaded.BaseTime, ms.ToArray());
}
}
else
{
SubtitleSection.ToStream(ms, subtitleSection);
AppendToBuffer(buffer, subtitleSection.BaseTime, ms.ToArray());
}
}
else
{
SubtitleSection.ToStream(ms, subtitleSection);
AppendToBuffer(buffer, subtitleSection.BaseTime, ms.ToArray());
}
}
break;
}
}
}
}