public void WriteToStream(Stream stream)
{
byte[] regionSubtitle = MakeSubtitleRegions();
stream.Write(new byte[] { 0, 0, 1, 0xbf }, 0, 4); // MPEG-2 Private stream 2
int size = regionSubtitle.Length + 15;
stream.WriteWord(size);
stream.WriteByte(SegmentTypeDialogPresentation); // 0x82
stream.WriteWord(size - 3);
stream.WritePts(StartPts);
stream.WritePts(EndPts);
if (PaletteUpdate)
{
stream.WriteWord(PaletteUpdates.Count);
foreach (var palette in PaletteUpdates)
{
stream.WriteByte((byte)palette.PaletteEntryId);
stream.WriteByte((byte)palette.Y);
stream.WriteByte((byte)palette.Cb);
stream.WriteByte((byte)palette.Cr);
stream.WriteByte((byte)palette.T);
}
}
else
{
stream.WriteByte(0); // 1 bit = palette update (0=no update), next 7 bits reserved
}
stream.WriteByte((byte)Regions.Count); // number of regions
stream.Write(regionSubtitle, 0, regionSubtitle.Length);
}
public static void WriteToStream(Stream stream, string text, TimeCode start, TimeCode end, int regionStyleId, bool forced)
{
byte[] regionSubtitle = MakeSubtitleRegion(text);
stream.Write(new byte[] { 0, 0, 1, 0xbf }, 0, 4); // MPEG-2 Private stream 2
int size = regionSubtitle.Length + 2 + 1 + 5 + 5 + 4;
stream.WriteWord(size);
stream.WriteByte(SegmentTypeDialogPresentation); // 0x82
stream.WriteWord(size-3);
stream.WritePts(start);
stream.WritePts(end);
stream.WriteByte(0); // 1 bit = palette update (0=no update), next 7 bits reserved
stream.WriteByte(1); // number of regions
//first byte=continuous_present_flag, second byte=force, next 6 bits reserved
if (forced)
stream.WriteByte(Helper.B01000000);
else
stream.WriteByte(0);
stream.WriteByte((byte)regionStyleId);
stream.Write(regionSubtitle, 0, regionSubtitle.Length);
}