public VobSubMergedPack(byte[] subPictureData, TimeSpan presentationTimestamp, int streamId, IdxParagraph idxLine)
{
SubPicture = new SubPicture(subPictureData);
StartTime = presentationTimestamp;
StreamId = streamId;
IdxLine = idxLine;
}
public VobSubMergedPack(byte[] subPictureData, TimeSpan presentationTimestamp, int streamId, IdxParagraph idxLine)
{
SubPicture = new SubPicture(subPictureData);
StartTime = presentationTimestamp;
StreamId = streamId;
IdxLine = idxLine;
}
/// <summary>
/// Demultiplex multiplexed packs together each streamId at a time + removing bad packs + fixing displaytimes
/// </summary>
/// <returns>List of complete packs each with a complete sub image</returns>
public List <VobSubMergedPack> MergeVobSubPacks()
{
var list = new List <VobSubMergedPack>();
var pts = new TimeSpan();
var ms = new MemoryStream();
int streamId = 0;
float ticksPerMillisecond = 90.000F;
if (!IsPal)
{
ticksPerMillisecond = 90.090F; // TODO: What should this be for NTSC?
}
// get unique streamIds
var uniqueStreamIds = new List <int>();
foreach (var p in VobSubPacks)
{
if (p.PacketizedElementaryStream != null &&
p.PacketizedElementaryStream.SubPictureStreamId.HasValue &&
!uniqueStreamIds.Contains(p.PacketizedElementaryStream.SubPictureStreamId.Value))
{
uniqueStreamIds.Add(p.PacketizedElementaryStream.SubPictureStreamId.Value);
}
}
IdxParagraph lastIdxParagraph = null;
foreach (int uniqueStreamId in uniqueStreamIds) // packets must be merged in streamId order (so they don't get mixed)
{
foreach (var p in VobSubPacks)
{
if (p.PacketizedElementaryStream != null && p.PacketizedElementaryStream.SubPictureStreamId.HasValue &&
p.PacketizedElementaryStream.SubPictureStreamId.Value == uniqueStreamId)
{
if (p.PacketizedElementaryStream.PresentationTimestampDecodeTimestampFlags > 0)
{
if (lastIdxParagraph == null || p.IdxLine.FilePosition != lastIdxParagraph.FilePosition)
{
if (ms.Length > 0)
{
list.Add(new VobSubMergedPack(ms.ToArray(), pts, streamId, lastIdxParagraph));
}
ms.Close();
ms = new MemoryStream();
pts = TimeSpan.FromMilliseconds(Convert.ToDouble(p.PacketizedElementaryStream.PresentationTimestamp / ticksPerMillisecond)); //90000F * 1000)); (PAL)
streamId = p.PacketizedElementaryStream.SubPictureStreamId.Value;
}
}
lastIdxParagraph = p.IdxLine;
p.PacketizedElementaryStream.WriteToStream(ms);
}
}
if (ms.Length > 0)
{
list.Add(new VobSubMergedPack(ms.ToArray(), pts, streamId, lastIdxParagraph));
ms.Close();
ms = new MemoryStream();
}
}
ms.Close();
// Remove any bad packs
for (int i = list.Count - 1; i >= 0; i--)
{
VobSubMergedPack pack = list[i];
if (pack.SubPicture == null || pack.SubPicture.ImageDisplayArea.Width <= 3 || pack.SubPicture.ImageDisplayArea.Height <= 2)
{
list.RemoveAt(i);
}
else if (pack.EndTime.TotalSeconds - pack.StartTime.TotalSeconds < 0.1 && pack.SubPicture.ImageDisplayArea.Width <= 10 && pack.SubPicture.ImageDisplayArea.Height <= 10)
{
list.RemoveAt(i);
}
}
// Fix subs with no duration (completely normal) or negative duration or duration > 10 seconds
for (int i = 0; i < list.Count; i++)
{
VobSubMergedPack pack = list[i];
if (pack.SubPicture.Delay.TotalMilliseconds > 0)
{
pack.EndTime = pack.StartTime.Add(pack.SubPicture.Delay);
}
if (pack.EndTime < pack.StartTime || pack.EndTime.TotalSeconds - pack.StartTime.TotalSeconds > 10.0)
{
if (i + 1 < list.Count)
{
pack.EndTime = TimeSpan.FromMilliseconds(list[i].StartTime.TotalMilliseconds - 100);
}
else
{
pack.EndTime = TimeSpan.FromMilliseconds(pack.StartTime.TotalMilliseconds + 3000);
}
}
}
return(list);
}
public Idx(string[] lines)
{
int languageIndex = 0;
foreach (string line in lines)
{
if (_timeCodeLinePattern.IsMatch(line))
{
IdxParagraph p = GetTimeCodeAndFilePosition(line);
if (p != null)
{
IdxParagraphs.Add(p);
}
}
else if (line.StartsWith("palette:", StringComparison.OrdinalIgnoreCase) && line.Length > 10)
{
string s = line.Substring("palette:".Length + 1);
string[] colors = s.Split(new[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string hex in colors)
{
Palette.Add(HexToColor(hex));
}
}
else if (line.StartsWith("id:", StringComparison.OrdinalIgnoreCase) && line.Length > 4)
{
//id: en, index: 1
//id: es, index: 2
var parts = line.Split(new[] { ':', ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length > 1)
{
string twoLetterLanguageId = parts[1];
string nativeName;
if (IfoParser.LanguageCodes.Contains(twoLetterLanguageId))
{
nativeName = IfoParser.LanguageNames[IfoParser.LanguageCodes.IndexOf(twoLetterLanguageId)];
}
else
{
try
{
nativeName = CultureInfo.GetCultureInfoByIetfLanguageTag(twoLetterLanguageId).NativeName;
}
catch
{
nativeName = "Unknown (" + twoLetterLanguageId + ")";
}
}
if (parts.Length > 3 && parts[2].Equals("index", StringComparison.OrdinalIgnoreCase))
{
int index;
if (int.TryParse(parts[3], out index))
{
languageIndex = index;
}
}
// Use U+200E (LEFT-TO-RIGHT MARK) to support right-to-left scripts
Languages.Add(string.Format("{0} \x200E(0x{1:x})", nativeName, languageIndex + 32));
languageIndex++;
}
}
}
}
