jellyfin/BDInfo/TSPlaylistFile.cs
2019-01-13 21:37:13 +01:00

1292 lines
43 KiB
C#

//============================================================================
// BDInfo - Blu-ray Video and Audio Analysis Tool
// Copyright © 2010 Cinema Squid
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//=============================================================================
#undef DEBUG
using System;
using System.Collections.Generic;
using System.IO;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Text;
namespace BDInfo
{
public class TSPlaylistFile
{
private readonly IFileSystem _fileSystem;
private readonly ITextEncoding _textEncoding;
private FileSystemMetadata FileInfo = null;
public string FileType = null;
public bool IsInitialized = false;
public string Name = null;
public BDROM BDROM = null;
public bool HasHiddenTracks = false;
public bool HasLoops = false;
public bool IsCustom = false;
public List<double> Chapters = new List<double>();
public Dictionary<ushort, TSStream> Streams =
new Dictionary<ushort, TSStream>();
public Dictionary<ushort, TSStream> PlaylistStreams =
new Dictionary<ushort, TSStream>();
public List<TSStreamClip> StreamClips =
new List<TSStreamClip>();
public List<Dictionary<ushort, TSStream>> AngleStreams =
new List<Dictionary<ushort, TSStream>>();
public List<Dictionary<double, TSStreamClip>> AngleClips =
new List<Dictionary<double, TSStreamClip>>();
public int AngleCount = 0;
public List<TSStream> SortedStreams =
new List<TSStream>();
public List<TSVideoStream> VideoStreams =
new List<TSVideoStream>();
public List<TSAudioStream> AudioStreams =
new List<TSAudioStream>();
public List<TSTextStream> TextStreams =
new List<TSTextStream>();
public List<TSGraphicsStream> GraphicsStreams =
new List<TSGraphicsStream>();
public TSPlaylistFile(
BDROM bdrom,
FileSystemMetadata fileInfo, IFileSystem fileSystem, ITextEncoding textEncoding)
{
BDROM = bdrom;
FileInfo = fileInfo;
_fileSystem = fileSystem;
_textEncoding = textEncoding;
Name = fileInfo.Name.ToUpper();
}
public TSPlaylistFile(
BDROM bdrom,
string name,
List<TSStreamClip> clips, IFileSystem fileSystem, ITextEncoding textEncoding)
{
BDROM = bdrom;
Name = name;
_fileSystem = fileSystem;
_textEncoding = textEncoding;
IsCustom = true;
foreach (var clip in clips)
{
var newClip = new TSStreamClip(
clip.StreamFile, clip.StreamClipFile);
newClip.Name = clip.Name;
newClip.TimeIn = clip.TimeIn;
newClip.TimeOut = clip.TimeOut;
newClip.Length = newClip.TimeOut - newClip.TimeIn;
newClip.RelativeTimeIn = TotalLength;
newClip.RelativeTimeOut = newClip.RelativeTimeIn + newClip.Length;
newClip.AngleIndex = clip.AngleIndex;
newClip.Chapters.Add(clip.TimeIn);
StreamClips.Add(newClip);
if (newClip.AngleIndex > AngleCount)
{
AngleCount = newClip.AngleIndex;
}
if (newClip.AngleIndex == 0)
{
Chapters.Add(newClip.RelativeTimeIn);
}
}
LoadStreamClips();
IsInitialized = true;
}
public override string ToString()
{
return Name;
}
public ulong InterleavedFileSize
{
get
{
ulong size = 0;
foreach (var clip in StreamClips)
{
size += clip.InterleavedFileSize;
}
return size;
}
}
public ulong FileSize
{
get
{
ulong size = 0;
foreach (var clip in StreamClips)
{
size += clip.FileSize;
}
return size;
}
}
public double TotalLength
{
get
{
double length = 0;
foreach (var clip in StreamClips)
{
if (clip.AngleIndex == 0)
{
length += clip.Length;
}
}
return length;
}
}
public double TotalAngleLength
{
get
{
double length = 0;
foreach (var clip in StreamClips)
{
length += clip.Length;
}
return length;
}
}
public ulong TotalSize
{
get
{
ulong size = 0;
foreach (var clip in StreamClips)
{
if (clip.AngleIndex == 0)
{
size += clip.PacketSize;
}
}
return size;
}
}
public ulong TotalAngleSize
{
get
{
ulong size = 0;
foreach (var clip in StreamClips)
{
size += clip.PacketSize;
}
return size;
}
}
public ulong TotalBitRate
{
get
{
if (TotalLength > 0)
{
return (ulong)Math.Round(((TotalSize * 8.0) / TotalLength));
}
return 0;
}
}
public ulong TotalAngleBitRate
{
get
{
if (TotalAngleLength > 0)
{
return (ulong)Math.Round(((TotalAngleSize * 8.0) / TotalAngleLength));
}
return 0;
}
}
public void Scan(
Dictionary<string, TSStreamFile> streamFiles,
Dictionary<string, TSStreamClipFile> streamClipFiles)
{
Stream fileStream = null;
BinaryReader fileReader = null;
try
{
Streams.Clear();
StreamClips.Clear();
fileStream = _fileSystem.OpenRead(FileInfo.FullName);
fileReader = new BinaryReader(fileStream);
byte[] data = new byte[fileStream.Length];
int dataLength = fileReader.Read(data, 0, data.Length);
int pos = 0;
FileType = ReadString(data, 8, ref pos);
if (FileType != "MPLS0100" && FileType != "MPLS0200")
{
throw new Exception(string.Format(
"Playlist {0} has an unknown file type {1}.",
FileInfo.Name, FileType));
}
int playlistOffset = ReadInt32(data, ref pos);
int chaptersOffset = ReadInt32(data, ref pos);
int extensionsOffset = ReadInt32(data, ref pos);
pos = playlistOffset;
int playlistLength = ReadInt32(data, ref pos);
int playlistReserved = ReadInt16(data, ref pos);
int itemCount = ReadInt16(data, ref pos);
int subitemCount = ReadInt16(data, ref pos);
var chapterClips = new List<TSStreamClip>();
for (int itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
int itemStart = pos;
int itemLength = ReadInt16(data, ref pos);
string itemName = ReadString(data, 5, ref pos);
string itemType = ReadString(data, 4, ref pos);
TSStreamFile streamFile = null;
string streamFileName = string.Format(
"{0}.M2TS", itemName);
if (streamFiles.ContainsKey(streamFileName))
{
streamFile = streamFiles[streamFileName];
}
if (streamFile == null)
{
// Error condition
}
TSStreamClipFile streamClipFile = null;
string streamClipFileName = string.Format(
"{0}.CLPI", itemName);
if (streamClipFiles.ContainsKey(streamClipFileName))
{
streamClipFile = streamClipFiles[streamClipFileName];
}
if (streamClipFile == null)
{
throw new Exception(string.Format(
"Playlist {0} referenced missing file {1}.",
FileInfo.Name, streamFileName));
}
pos += 1;
int multiangle = (data[pos] >> 4) & 0x01;
int condition = data[pos] & 0x0F;
pos += 2;
int inTime = ReadInt32(data, ref pos);
if (inTime < 0) inTime &= 0x7FFFFFFF;
double timeIn = (double)inTime / 45000;
int outTime = ReadInt32(data, ref pos);
if (outTime < 0) outTime &= 0x7FFFFFFF;
double timeOut = (double)outTime / 45000;
var streamClip = new TSStreamClip(
streamFile, streamClipFile);
streamClip.Name = streamFileName; //TODO
streamClip.TimeIn = timeIn;
streamClip.TimeOut = timeOut;
streamClip.Length = streamClip.TimeOut - streamClip.TimeIn;
streamClip.RelativeTimeIn = TotalLength;
streamClip.RelativeTimeOut = streamClip.RelativeTimeIn + streamClip.Length;
StreamClips.Add(streamClip);
chapterClips.Add(streamClip);
pos += 12;
if (multiangle > 0)
{
int angles = data[pos];
pos += 2;
for (int angle = 0; angle < angles - 1; angle++)
{
string angleName = ReadString(data, 5, ref pos);
string angleType = ReadString(data, 4, ref pos);
pos += 1;
TSStreamFile angleFile = null;
string angleFileName = string.Format(
"{0}.M2TS", angleName);
if (streamFiles.ContainsKey(angleFileName))
{
angleFile = streamFiles[angleFileName];
}
if (angleFile == null)
{
throw new Exception(string.Format(
"Playlist {0} referenced missing angle file {1}.",
FileInfo.Name, angleFileName));
}
TSStreamClipFile angleClipFile = null;
string angleClipFileName = string.Format(
"{0}.CLPI", angleName);
if (streamClipFiles.ContainsKey(angleClipFileName))
{
angleClipFile = streamClipFiles[angleClipFileName];
}
if (angleClipFile == null)
{
throw new Exception(string.Format(
"Playlist {0} referenced missing angle file {1}.",
FileInfo.Name, angleClipFileName));
}
var angleClip =
new TSStreamClip(angleFile, angleClipFile);
angleClip.AngleIndex = angle + 1;
angleClip.TimeIn = streamClip.TimeIn;
angleClip.TimeOut = streamClip.TimeOut;
angleClip.RelativeTimeIn = streamClip.RelativeTimeIn;
angleClip.RelativeTimeOut = streamClip.RelativeTimeOut;
angleClip.Length = streamClip.Length;
StreamClips.Add(angleClip);
}
if (angles - 1 > AngleCount) AngleCount = angles - 1;
}
int streamInfoLength = ReadInt16(data, ref pos);
pos += 2;
int streamCountVideo = data[pos++];
int streamCountAudio = data[pos++];
int streamCountPG = data[pos++];
int streamCountIG = data[pos++];
int streamCountSecondaryAudio = data[pos++];
int streamCountSecondaryVideo = data[pos++];
int streamCountPIP = data[pos++];
pos += 5;
#if DEBUG
Debug.WriteLine(string.Format(
"{0} : {1} -> V:{2} A:{3} PG:{4} IG:{5} 2A:{6} 2V:{7} PIP:{8}",
Name, streamFileName, streamCountVideo, streamCountAudio, streamCountPG, streamCountIG,
streamCountSecondaryAudio, streamCountSecondaryVideo, streamCountPIP));
#endif
for (int i = 0; i < streamCountVideo; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
}
for (int i = 0; i < streamCountAudio; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
}
for (int i = 0; i < streamCountPG; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
}
for (int i = 0; i < streamCountIG; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
}
for (int i = 0; i < streamCountSecondaryAudio; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
pos += 2;
}
for (int i = 0; i < streamCountSecondaryVideo; i++)
{
var stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
pos += 6;
}
/*
* TODO
*
for (int i = 0; i < streamCountPIP; i++)
{
TSStream stream = CreatePlaylistStream(data, ref pos);
if (stream != null) PlaylistStreams[stream.PID] = stream;
}
*/
pos += itemLength - (pos - itemStart) + 2;
}
pos = chaptersOffset + 4;
int chapterCount = ReadInt16(data, ref pos);
for (int chapterIndex = 0;
chapterIndex < chapterCount;
chapterIndex++)
{
int chapterType = data[pos + 1];
if (chapterType == 1)
{
int streamFileIndex =
((int)data[pos + 2] << 8) + data[pos + 3];
long chapterTime =
((long)data[pos + 4] << 24) +
((long)data[pos + 5] << 16) +
((long)data[pos + 6] << 8) +
((long)data[pos + 7]);
var streamClip = chapterClips[streamFileIndex];
double chapterSeconds = (double)chapterTime / 45000;
double relativeSeconds =
chapterSeconds -
streamClip.TimeIn +
streamClip.RelativeTimeIn;
// TODO: Ignore short last chapter?
if (TotalLength - relativeSeconds > 1.0)
{
streamClip.Chapters.Add(chapterSeconds);
this.Chapters.Add(relativeSeconds);
}
}
else
{
// TODO: Handle other chapter types?
}
pos += 14;
}
}
finally
{
if (fileReader != null)
{
fileReader.Dispose();
}
if (fileStream != null)
{
fileStream.Dispose();
}
}
}
public void Initialize()
{
LoadStreamClips();
var clipTimes = new Dictionary<string, List<double>>();
foreach (var clip in StreamClips)
{
if (clip.AngleIndex == 0)
{
if (clipTimes.ContainsKey(clip.Name))
{
if (clipTimes[clip.Name].Contains(clip.TimeIn))
{
HasLoops = true;
break;
}
else
{
clipTimes[clip.Name].Add(clip.TimeIn);
}
}
else
{
clipTimes[clip.Name] = new List<double> { clip.TimeIn };
}
}
}
ClearBitrates();
IsInitialized = true;
}
protected TSStream CreatePlaylistStream(byte[] data, ref int pos)
{
TSStream stream = null;
int start = pos;
int headerLength = data[pos++];
int headerPos = pos;
int headerType = data[pos++];
int pid = 0;
int subpathid = 0;
int subclipid = 0;
switch (headerType)
{
case 1:
pid = ReadInt16(data, ref pos);
break;
case 2:
subpathid = data[pos++];
subclipid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
case 3:
subpathid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
case 4:
subpathid = data[pos++];
subclipid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
default:
break;
}
pos = headerPos + headerLength;
int streamLength = data[pos++];
int streamPos = pos;
var streamType = (TSStreamType)data[pos++];
switch (streamType)
{
case TSStreamType.MVC_VIDEO:
// TODO
break;
case TSStreamType.AVC_VIDEO:
case TSStreamType.MPEG1_VIDEO:
case TSStreamType.MPEG2_VIDEO:
case TSStreamType.VC1_VIDEO:
var videoFormat = (TSVideoFormat)
(data[pos] >> 4);
var frameRate = (TSFrameRate)
(data[pos] & 0xF);
var aspectRatio = (TSAspectRatio)
(data[pos + 1] >> 4);
stream = new TSVideoStream();
((TSVideoStream)stream).VideoFormat = videoFormat;
((TSVideoStream)stream).AspectRatio = aspectRatio;
((TSVideoStream)stream).FrameRate = frameRate;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
pid,
streamType,
videoFormat,
frameRate,
aspectRatio));
#endif
break;
case TSStreamType.AC3_AUDIO:
case TSStreamType.AC3_PLUS_AUDIO:
case TSStreamType.AC3_PLUS_SECONDARY_AUDIO:
case TSStreamType.AC3_TRUE_HD_AUDIO:
case TSStreamType.DTS_AUDIO:
case TSStreamType.DTS_HD_AUDIO:
case TSStreamType.DTS_HD_MASTER_AUDIO:
case TSStreamType.DTS_HD_SECONDARY_AUDIO:
case TSStreamType.LPCM_AUDIO:
case TSStreamType.MPEG1_AUDIO:
case TSStreamType.MPEG2_AUDIO:
int audioFormat = ReadByte(data, ref pos);
var channelLayout = (TSChannelLayout)
(audioFormat >> 4);
var sampleRate = (TSSampleRate)
(audioFormat & 0xF);
string audioLanguage = ReadString(data, 3, ref pos);
stream = new TSAudioStream();
((TSAudioStream)stream).ChannelLayout = channelLayout;
((TSAudioStream)stream).SampleRate = TSAudioStream.ConvertSampleRate(sampleRate);
((TSAudioStream)stream).LanguageCode = audioLanguage;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
pid,
streamType,
audioLanguage,
channelLayout,
sampleRate));
#endif
break;
case TSStreamType.INTERACTIVE_GRAPHICS:
case TSStreamType.PRESENTATION_GRAPHICS:
string graphicsLanguage = ReadString(data, 3, ref pos);
stream = new TSGraphicsStream();
((TSGraphicsStream)stream).LanguageCode = graphicsLanguage;
if (data[pos] != 0)
{
}
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
pid,
streamType,
graphicsLanguage));
#endif
break;
case TSStreamType.SUBTITLE:
int code = ReadByte(data, ref pos); // TODO
string textLanguage = ReadString(data, 3, ref pos);
stream = new TSTextStream();
((TSTextStream)stream).LanguageCode = textLanguage;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
pid,
streamType,
textLanguage));
#endif
break;
default:
break;
}
pos = streamPos + streamLength;
if (stream != null)
{
stream.PID = (ushort)pid;
stream.StreamType = streamType;
}
return stream;
}
private void LoadStreamClips()
{
AngleClips.Clear();
if (AngleCount > 0)
{
for (int angleIndex = 0; angleIndex < AngleCount; angleIndex++)
{
AngleClips.Add(new Dictionary<double, TSStreamClip>());
}
}
TSStreamClip referenceClip = null;
if (StreamClips.Count > 0)
{
referenceClip = StreamClips[0];
}
foreach (var clip in StreamClips)
{
if (clip.StreamClipFile.Streams.Count > referenceClip.StreamClipFile.Streams.Count)
{
referenceClip = clip;
}
else if (clip.Length > referenceClip.Length)
{
referenceClip = clip;
}
if (AngleCount > 0)
{
if (clip.AngleIndex == 0)
{
for (int angleIndex = 0; angleIndex < AngleCount; angleIndex++)
{
AngleClips[angleIndex][clip.RelativeTimeIn] = clip;
}
}
else
{
AngleClips[clip.AngleIndex - 1][clip.RelativeTimeIn] = clip;
}
}
}
foreach (var clipStream
in referenceClip.StreamClipFile.Streams.Values)
{
if (!Streams.ContainsKey(clipStream.PID))
{
var stream = clipStream.Clone();
Streams[clipStream.PID] = stream;
if (!IsCustom && !PlaylistStreams.ContainsKey(stream.PID))
{
stream.IsHidden = true;
HasHiddenTracks = true;
}
if (stream.IsVideoStream)
{
VideoStreams.Add((TSVideoStream)stream);
}
else if (stream.IsAudioStream)
{
AudioStreams.Add((TSAudioStream)stream);
}
else if (stream.IsGraphicsStream)
{
GraphicsStreams.Add((TSGraphicsStream)stream);
}
else if (stream.IsTextStream)
{
TextStreams.Add((TSTextStream)stream);
}
}
}
if (referenceClip.StreamFile != null)
{
// TODO: Better way to add this in?
if (BDInfoSettings.EnableSSIF &&
referenceClip.StreamFile.InterleavedFile != null &&
referenceClip.StreamFile.Streams.ContainsKey(4114) &&
!Streams.ContainsKey(4114))
{
var stream = referenceClip.StreamFile.Streams[4114].Clone();
Streams[4114] = stream;
if (stream.IsVideoStream)
{
VideoStreams.Add((TSVideoStream)stream);
}
}
foreach (var clipStream
in referenceClip.StreamFile.Streams.Values)
{
if (Streams.ContainsKey(clipStream.PID))
{
var stream = Streams[clipStream.PID];
if (stream.StreamType != clipStream.StreamType) continue;
if (clipStream.BitRate > stream.BitRate)
{
stream.BitRate = clipStream.BitRate;
}
stream.IsVBR = clipStream.IsVBR;
if (stream.IsVideoStream &&
clipStream.IsVideoStream)
{
((TSVideoStream)stream).EncodingProfile =
((TSVideoStream)clipStream).EncodingProfile;
}
else if (stream.IsAudioStream &&
clipStream.IsAudioStream)
{
var audioStream = (TSAudioStream)stream;
var clipAudioStream = (TSAudioStream)clipStream;
if (clipAudioStream.ChannelCount > audioStream.ChannelCount)
{
audioStream.ChannelCount = clipAudioStream.ChannelCount;
}
if (clipAudioStream.LFE > audioStream.LFE)
{
audioStream.LFE = clipAudioStream.LFE;
}
if (clipAudioStream.SampleRate > audioStream.SampleRate)
{
audioStream.SampleRate = clipAudioStream.SampleRate;
}
if (clipAudioStream.BitDepth > audioStream.BitDepth)
{
audioStream.BitDepth = clipAudioStream.BitDepth;
}
if (clipAudioStream.DialNorm < audioStream.DialNorm)
{
audioStream.DialNorm = clipAudioStream.DialNorm;
}
if (clipAudioStream.AudioMode != TSAudioMode.Unknown)
{
audioStream.AudioMode = clipAudioStream.AudioMode;
}
if (clipAudioStream.CoreStream != null &&
audioStream.CoreStream == null)
{
audioStream.CoreStream = (TSAudioStream)
clipAudioStream.CoreStream.Clone();
}
}
}
}
}
for (int i = 0; i < AngleCount; i++)
{
AngleStreams.Add(new Dictionary<ushort, TSStream>());
}
if (!BDInfoSettings.KeepStreamOrder)
{
VideoStreams.Sort(CompareVideoStreams);
}
foreach (TSStream stream in VideoStreams)
{
SortedStreams.Add(stream);
for (int i = 0; i < AngleCount; i++)
{
var angleStream = stream.Clone();
angleStream.AngleIndex = i + 1;
AngleStreams[i][angleStream.PID] = angleStream;
SortedStreams.Add(angleStream);
}
}
if (!BDInfoSettings.KeepStreamOrder)
{
AudioStreams.Sort(CompareAudioStreams);
}
foreach (TSStream stream in AudioStreams)
{
SortedStreams.Add(stream);
}
if (!BDInfoSettings.KeepStreamOrder)
{
GraphicsStreams.Sort(CompareGraphicsStreams);
}
foreach (TSStream stream in GraphicsStreams)
{
SortedStreams.Add(stream);
}
if (!BDInfoSettings.KeepStreamOrder)
{
TextStreams.Sort(CompareTextStreams);
}
foreach (TSStream stream in TextStreams)
{
SortedStreams.Add(stream);
}
}
public void ClearBitrates()
{
foreach (var clip in StreamClips)
{
clip.PayloadBytes = 0;
clip.PacketCount = 0;
clip.PacketSeconds = 0;
if (clip.StreamFile != null)
{
foreach (var stream in clip.StreamFile.Streams.Values)
{
stream.PayloadBytes = 0;
stream.PacketCount = 0;
stream.PacketSeconds = 0;
}
if (clip.StreamFile != null &&
clip.StreamFile.StreamDiagnostics != null)
{
clip.StreamFile.StreamDiagnostics.Clear();
}
}
}
foreach (var stream in SortedStreams)
{
stream.PayloadBytes = 0;
stream.PacketCount = 0;
stream.PacketSeconds = 0;
}
}
public bool IsValid
{
get
{
if (!IsInitialized) return false;
if (BDInfoSettings.FilterShortPlaylists &&
TotalLength < BDInfoSettings.FilterShortPlaylistsValue)
{
return false;
}
if (HasLoops &&
BDInfoSettings.FilterLoopingPlaylists)
{
return false;
}
return true;
}
}
public int CompareVideoStreams(
TSVideoStream x,
TSVideoStream y)
{
if (x == null && y == null)
{
return 0;
}
else if (x == null && y != null)
{
return 1;
}
else if (x != null && y == null)
{
return -1;
}
else
{
if (x.Height > y.Height)
{
return -1;
}
else if (y.Height > x.Height)
{
return 1;
}
else if (x.PID > y.PID)
{
return 1;
}
else if (y.PID > x.PID)
{
return -1;
}
else
{
return 0;
}
}
}
public int CompareAudioStreams(
TSAudioStream x,
TSAudioStream y)
{
if (x == y)
{
return 0;
}
else if (x == null && y == null)
{
return 0;
}
else if (x == null && y != null)
{
return -1;
}
else if (x != null && y == null)
{
return 1;
}
else
{
if (x.ChannelCount > y.ChannelCount)
{
return -1;
}
else if (y.ChannelCount > x.ChannelCount)
{
return 1;
}
else
{
int sortX = GetStreamTypeSortIndex(x.StreamType);
int sortY = GetStreamTypeSortIndex(y.StreamType);
if (sortX > sortY)
{
return -1;
}
else if (sortY > sortX)
{
return 1;
}
else
{
if (x.LanguageCode == "eng")
{
return -1;
}
else if (y.LanguageCode == "eng")
{
return 1;
}
else if (x.LanguageCode != y.LanguageCode)
{
return string.Compare(
x.LanguageName, y.LanguageName);
}
else if (x.PID < y.PID)
{
return -1;
}
else if (y.PID < x.PID)
{
return 1;
}
return 0;
}
}
}
}
public int CompareTextStreams(
TSTextStream x,
TSTextStream y)
{
if (x == y)
{
return 0;
}
else if (x == null && y == null)
{
return 0;
}
else if (x == null && y != null)
{
return -1;
}
else if (x != null && y == null)
{
return 1;
}
else
{
if (x.LanguageCode == "eng")
{
return -1;
}
else if (y.LanguageCode == "eng")
{
return 1;
}
else
{
if (x.LanguageCode == y.LanguageCode)
{
if (x.PID > y.PID)
{
return 1;
}
else if (y.PID > x.PID)
{
return -1;
}
else
{
return 0;
}
}
else
{
return string.Compare(
x.LanguageName, y.LanguageName);
}
}
}
}
private int CompareGraphicsStreams(
TSGraphicsStream x,
TSGraphicsStream y)
{
if (x == y)
{
return 0;
}
else if (x == null && y == null)
{
return 0;
}
else if (x == null && y != null)
{
return -1;
}
else if (x != null && y == null)
{
return 1;
}
else
{
int sortX = GetStreamTypeSortIndex(x.StreamType);
int sortY = GetStreamTypeSortIndex(y.StreamType);
if (sortX > sortY)
{
return -1;
}
else if (sortY > sortX)
{
return 1;
}
else if (x.LanguageCode == "eng")
{
return -1;
}
else if (y.LanguageCode == "eng")
{
return 1;
}
else
{
if (x.LanguageCode == y.LanguageCode)
{
if (x.PID > y.PID)
{
return 1;
}
else if (y.PID > x.PID)
{
return -1;
}
else
{
return 0;
}
}
else
{
return string.Compare(x.LanguageName, y.LanguageName);
}
}
}
}
private int GetStreamTypeSortIndex(TSStreamType streamType)
{
switch (streamType)
{
case TSStreamType.Unknown:
return 0;
case TSStreamType.MPEG1_VIDEO:
return 1;
case TSStreamType.MPEG2_VIDEO:
return 2;
case TSStreamType.AVC_VIDEO:
return 3;
case TSStreamType.VC1_VIDEO:
return 4;
case TSStreamType.MVC_VIDEO:
return 5;
case TSStreamType.MPEG1_AUDIO:
return 1;
case TSStreamType.MPEG2_AUDIO:
return 2;
case TSStreamType.AC3_PLUS_SECONDARY_AUDIO:
return 3;
case TSStreamType.DTS_HD_SECONDARY_AUDIO:
return 4;
case TSStreamType.AC3_AUDIO:
return 5;
case TSStreamType.DTS_AUDIO:
return 6;
case TSStreamType.AC3_PLUS_AUDIO:
return 7;
case TSStreamType.DTS_HD_AUDIO:
return 8;
case TSStreamType.AC3_TRUE_HD_AUDIO:
return 9;
case TSStreamType.DTS_HD_MASTER_AUDIO:
return 10;
case TSStreamType.LPCM_AUDIO:
return 11;
case TSStreamType.SUBTITLE:
return 1;
case TSStreamType.INTERACTIVE_GRAPHICS:
return 2;
case TSStreamType.PRESENTATION_GRAPHICS:
return 3;
default:
return 0;
}
}
protected string ReadString(
byte[] data,
int count,
ref int pos)
{
string val =
_textEncoding.GetASCIIEncoding().GetString(data, pos, count);
pos += count;
return val;
}
protected int ReadInt32(
byte[] data,
ref int pos)
{
int val =
((int)data[pos] << 24) +
((int)data[pos + 1] << 16) +
((int)data[pos + 2] << 8) +
((int)data[pos + 3]);
pos += 4;
return val;
}
protected int ReadInt16(
byte[] data,
ref int pos)
{
int val =
((int)data[pos] << 8) +
((int)data[pos + 1]);
pos += 2;
return val;
}
protected byte ReadByte(
byte[] data,
ref int pos)
{
return data[pos++];
}
}
}