public static bool IsM2TransportStream(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
var tsp = new TransportStreamParser();
tsp.DetectFormat(fs);
return tsp.IsM2TransportStream;
}
}
internal void Initialize(TransportStreamParser tsParser, string fileName)
{
_tsParser = tsParser;
Text = string.Format(Configuration.Settings.Language.TransportStreamSubtitleChooser.Title, fileName);
foreach (int id in tsParser.SubtitlePacketIds)
{
listBoxTracks.Items.Add(string.Format(Configuration.Settings.Language.TransportStreamSubtitleChooser.PidLine, id, tsParser.GetDvbSubtitles(id).Count));
}
listBoxTracks.SelectedIndex = 0;
}
public void TransportStreamTest1()
{
string fileName = Path.Combine(Directory.GetCurrentDirectory(), "sample_TS_with_graphics.ts");
var parser = new TransportStreamParser();
parser.Parse(fileName, null);
var subtitles = parser.GetDvbSubtitles(41);
Assert.IsTrue(subtitles.Count == 10);
using (var bmp = subtitles[0].Pes.GetImageFull())
{
Assert.IsTrue(bmp.Width == 719);
Assert.IsTrue(bmp.Height == 575);
}
}
private bool ImportSubtitleFromTransportStream(string fileName)
{
ShowStatus(_language.ParsingTransportStream);
Refresh();
var tsParser = new TransportStreamParser();
tsParser.Parse(fileName, (pos, total) => UpdateProgress(pos, total, _language.ParsingTransportStreamFile));
ShowStatus(string.Empty);
TaskbarList.SetProgressState(Handle, TaskbarButtonProgressFlags.NoProgress);
if (tsParser.SubtitlePacketIds.Count == 0)
{
MessageBox.Show(_language.NoSubtitlesFound);
return false;
}
int packedId = tsParser.SubtitlePacketIds[0];
if (tsParser.SubtitlePacketIds.Count > 1)
{
using (var subChooser = new TransportStreamSubtitleChooser())
{
subChooser.Initialize(tsParser, fileName);
if (subChooser.ShowDialog(this) == DialogResult.Cancel)
return false;
packedId = tsParser.SubtitlePacketIds[subChooser.SelectedIndex];
}
}
var subtitles = tsParser.GetDvbSubtitles(packedId);
using (var formSubOcr = new VobSubOcr())
{
formSubOcr.Initialize(subtitles, Configuration.Settings.VobSubOcr, fileName);
if (formSubOcr.ShowDialog(this) == DialogResult.OK)
{
MakeHistoryForUndo(_language.BeforeImportingDvdSubtitle);
_subtitle.Paragraphs.Clear();
SetCurrentFormat(Configuration.Settings.General.DefaultSubtitleFormat);
_subtitle.WasLoadedWithFrameNumbers = false;
_subtitle.CalculateFrameNumbersFromTimeCodes(CurrentFrameRate);
foreach (var p in formSubOcr.SubtitleFromOcr.Paragraphs)
{
_subtitle.Paragraphs.Add(p);
}
ShowSource();
SubtitleListview1.Fill(_subtitle, _subtitleAlternate);
_subtitleListViewIndex = -1;
SubtitleListview1.FirstVisibleIndex = -1;
SubtitleListview1.SelectIndexAndEnsureVisible(0);
_fileName = string.Empty;
Text = Title;
Configuration.Settings.Save();
return true;
}
return false;
}
}
/// <summary>
/// Get Program Map Tables for a Transport Stream, especially language for subtitle tracks
/// </summary>
/// <param name="ms">Input stream</param>
public void Parse(Stream ms)
{
try
{
ms.Position = 0;
const int packetLength = 188;
var isM2TransportStream = TransportStreamParser.IsM3TransportStream(ms);
var packetBuffer = new byte[packetLength];
var m2TsTimeCodeBuffer = new byte[4];
long position = 0;
// check for Topfield .rec file
ms.Seek(position, SeekOrigin.Begin);
ms.Read(m2TsTimeCodeBuffer, 0, 3);
if (m2TsTimeCodeBuffer[0] == 0x54 && m2TsTimeCodeBuffer[1] == 0x46 && m2TsTimeCodeBuffer[2] == 0x72)
{
position = 3760;
}
var pmtPids = new List <int>();
_programMapTables = new List <ProgramMapTable>();
long transportStreamLength = ms.Length;
var max = Math.Min(transportStreamLength, MaxScanSize + position);
while (position < max)
{
ms.Seek(position, SeekOrigin.Begin);
if (isM2TransportStream)
{
ms.Read(m2TsTimeCodeBuffer, 0, m2TsTimeCodeBuffer.Length);
position += m2TsTimeCodeBuffer.Length;
}
ms.Read(packetBuffer, 0, packetLength);
if (packetBuffer[0] == Packet.SynchronizationByte)
{
var packet = new Packet(packetBuffer);
if (pmtPids.Contains(packet.PacketId))
{
var pmt = new ProgramMapTable(packet.Payload, 0);
_programMapTables.Add(pmt);
}
else if (packet.IsProgramAssociationTable)
{
var pat = new ProgramAssociationTable(packet.Payload, 0);
pmtPids.AddRange(pat.ProgramIds.Where(p => !pmtPids.Contains(p)));
}
position += packetLength;
}
else
{
position++;
}
}
}
catch (Exception e)
{
Exception = e;
}
}
