mirror of
https://github.com/jellyfin/jellyfin.git
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1556 lines
70 KiB
C#
1556 lines
70 KiB
C#
//============================================================================
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// BDInfo - Blu-ray Video and Audio Analysis Tool
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// Copyright © 2010 Cinema Squid
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//=============================================================================
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#undef DEBUG
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using System;
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using System.Collections.Generic;
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using System.IO;
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using MediaBrowser.Model.IO;
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namespace BDInfo
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{
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public class TSStreamState
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{
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public ulong TransferCount = 0;
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public string StreamTag = null;
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public ulong TotalPackets = 0;
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public ulong WindowPackets = 0;
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public ulong TotalBytes = 0;
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public ulong WindowBytes = 0;
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public long PeakTransferLength = 0;
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public long PeakTransferRate = 0;
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public double TransferMarker = 0;
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public double TransferInterval = 0;
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public TSStreamBuffer StreamBuffer = new TSStreamBuffer();
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public uint Parse = 0;
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public bool TransferState = false;
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public int TransferLength = 0;
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public int PacketLength = 0;
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public byte PacketLengthParse = 0;
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public byte PacketParse = 0;
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public byte PTSParse = 0;
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public ulong PTS = 0;
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public ulong PTSTemp = 0;
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public ulong PTSLast = 0;
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public ulong PTSPrev = 0;
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public ulong PTSDiff = 0;
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public ulong PTSCount = 0;
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public ulong PTSTransfer = 0;
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public byte DTSParse = 0;
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public ulong DTSTemp = 0;
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public ulong DTSPrev = 0;
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public byte PESHeaderLength = 0;
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public byte PESHeaderFlags = 0;
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#if DEBUG
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public byte PESHeaderIndex = 0;
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public byte[] PESHeader = new byte[256 + 9];
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#endif
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}
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public class TSPacketParser
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{
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public bool SyncState = false;
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public byte TimeCodeParse = 4;
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public byte PacketLength = 0;
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public byte HeaderParse = 0;
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public uint TimeCode;
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public byte TransportErrorIndicator;
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public byte PayloadUnitStartIndicator;
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public byte TransportPriority;
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public ushort PID;
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public byte TransportScramblingControl;
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public byte AdaptionFieldControl;
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public bool AdaptionFieldState = false;
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public byte AdaptionFieldParse = 0;
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public byte AdaptionFieldLength = 0;
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public ushort PCRPID = 0xFFFF;
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public byte PCRParse = 0;
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public ulong PreviousPCR = 0;
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public ulong PCR = 0;
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public ulong PCRCount = 0;
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public ulong PTSFirst = ulong.MaxValue;
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public ulong PTSLast = ulong.MinValue;
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public ulong PTSDiff = 0;
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public byte[] PAT = new byte[1024];
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public bool PATSectionStart = false;
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public byte PATPointerField = 0;
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public uint PATOffset = 0;
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public byte PATSectionLengthParse = 0;
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public ushort PATSectionLength = 0;
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public uint PATSectionParse = 0;
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public bool PATTransferState = false;
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public byte PATSectionNumber = 0;
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public byte PATLastSectionNumber = 0;
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public ushort TransportStreamId = 0xFFFF;
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public List<TSDescriptor> PMTProgramDescriptors = new List<TSDescriptor>();
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public ushort PMTPID = 0xFFFF;
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public Dictionary<ushort, byte[]> PMT = new Dictionary<ushort, byte[]>();
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public bool PMTSectionStart = false;
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public ushort PMTProgramInfoLength = 0;
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public byte PMTProgramDescriptor = 0;
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public byte PMTProgramDescriptorLengthParse = 0;
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public byte PMTProgramDescriptorLength = 0;
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public ushort PMTStreamInfoLength = 0;
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public uint PMTStreamDescriptorLengthParse = 0;
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public uint PMTStreamDescriptorLength = 0;
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public byte PMTPointerField = 0;
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public uint PMTOffset = 0;
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public uint PMTSectionLengthParse = 0;
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public ushort PMTSectionLength = 0;
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public uint PMTSectionParse = 0;
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public bool PMTTransferState = false;
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public byte PMTSectionNumber = 0;
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public byte PMTLastSectionNumber = 0;
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public byte PMTTemp = 0;
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public TSStream Stream = null;
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public TSStreamState StreamState = null;
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public ulong TotalPackets = 0;
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}
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public class TSStreamDiagnostics
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{
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public ulong Bytes = 0;
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public ulong Packets = 0;
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public double Marker = 0;
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public double Interval = 0;
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public string Tag = null;
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}
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public class TSStreamFile
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{
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public FileSystemMetadata FileInfo = null;
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public string Name = null;
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public long Size = 0;
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public double Length = 0;
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public TSInterleavedFile InterleavedFile = null;
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private Dictionary<ushort, TSStreamState> StreamStates =
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new Dictionary<ushort, TSStreamState>();
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public Dictionary<ushort, TSStream> Streams =
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new Dictionary<ushort, TSStream>();
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public Dictionary<ushort, List<TSStreamDiagnostics>> StreamDiagnostics =
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new Dictionary<ushort, List<TSStreamDiagnostics>>();
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private List<TSPlaylistFile> Playlists = null;
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private readonly IFileSystem _fileSystem;
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public TSStreamFile(FileSystemMetadata fileInfo, IFileSystem fileSystem)
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{
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FileInfo = fileInfo;
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_fileSystem = fileSystem;
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Name = fileInfo.Name.ToUpper();
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}
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public string DisplayName
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{
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get
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{
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if (BDInfoSettings.EnableSSIF &&
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InterleavedFile != null)
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{
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return InterleavedFile.Name;
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}
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return Name;
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}
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}
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private bool ScanStream(
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TSStream stream,
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TSStreamState streamState,
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TSStreamBuffer buffer)
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{
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streamState.StreamTag = null;
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long bitrate = 0;
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if (stream.IsAudioStream &&
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streamState.PTSTransfer > 0)
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{
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bitrate = (long)Math.Round(
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(buffer.TransferLength * 8.0) /
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((double)streamState.PTSTransfer / 90000));
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if (bitrate > streamState.PeakTransferRate)
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{
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streamState.PeakTransferRate = bitrate;
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}
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}
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if (buffer.TransferLength > streamState.PeakTransferLength)
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{
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streamState.PeakTransferLength = buffer.TransferLength;
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}
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buffer.BeginRead();
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switch (stream.StreamType)
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{
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case TSStreamType.MPEG2_VIDEO:
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TSCodecMPEG2.Scan(
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(TSVideoStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.AVC_VIDEO:
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TSCodecAVC.Scan(
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(TSVideoStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.MVC_VIDEO:
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TSCodecMVC.Scan(
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(TSVideoStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.VC1_VIDEO:
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TSCodecVC1.Scan(
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(TSVideoStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.AC3_AUDIO:
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TSCodecAC3.Scan(
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(TSAudioStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.AC3_PLUS_AUDIO:
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case TSStreamType.AC3_PLUS_SECONDARY_AUDIO:
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TSCodecAC3.Scan(
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(TSAudioStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.AC3_TRUE_HD_AUDIO:
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TSCodecTrueHD.Scan(
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(TSAudioStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.LPCM_AUDIO:
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TSCodecLPCM.Scan(
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(TSAudioStream)stream, buffer, ref streamState.StreamTag);
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break;
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case TSStreamType.DTS_AUDIO:
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TSCodecDTS.Scan(
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(TSAudioStream)stream, buffer, bitrate, ref streamState.StreamTag);
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break;
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case TSStreamType.DTS_HD_AUDIO:
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case TSStreamType.DTS_HD_MASTER_AUDIO:
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case TSStreamType.DTS_HD_SECONDARY_AUDIO:
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TSCodecDTSHD.Scan(
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(TSAudioStream)stream, buffer, bitrate, ref streamState.StreamTag);
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break;
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default:
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stream.IsInitialized = true;
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break;
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}
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buffer.EndRead();
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streamState.StreamBuffer.Reset();
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bool isAVC = false;
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bool isMVC = false;
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foreach (var finishedStream in Streams.Values)
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{
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if (!finishedStream.IsInitialized)
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{
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return false;
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}
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if (finishedStream.StreamType == TSStreamType.AVC_VIDEO)
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{
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isAVC = true;
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}
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if (finishedStream.StreamType == TSStreamType.MVC_VIDEO)
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{
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isMVC = true;
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}
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}
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if (isMVC && !isAVC)
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{
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return false;
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}
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return true;
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}
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private void UpdateStreamBitrates(
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ushort PTSPID,
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ulong PTS,
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ulong PTSDiff)
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{
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if (Playlists == null) return;
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foreach (ushort PID in StreamStates.Keys)
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{
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if (Streams.ContainsKey(PID) &&
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Streams[PID].IsVideoStream &&
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PID != PTSPID)
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{
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continue;
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}
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if (StreamStates[PID].WindowPackets == 0)
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{
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continue;
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}
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UpdateStreamBitrate(PID, PTSPID, PTS, PTSDiff);
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}
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foreach (var playlist in Playlists)
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{
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double packetSeconds = 0;
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foreach (var clip in playlist.StreamClips)
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{
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if (clip.AngleIndex == 0)
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{
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packetSeconds += clip.PacketSeconds;
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}
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}
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if (packetSeconds > 0)
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{
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foreach (var playlistStream in playlist.SortedStreams)
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{
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if (playlistStream.IsVBR)
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{
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playlistStream.BitRate = (long)Math.Round(
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((playlistStream.PayloadBytes * 8.0) / packetSeconds));
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if (playlistStream.StreamType == TSStreamType.AC3_TRUE_HD_AUDIO &&
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((TSAudioStream)playlistStream).CoreStream != null)
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{
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playlistStream.BitRate -=
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((TSAudioStream)playlistStream).CoreStream.BitRate;
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}
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}
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}
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}
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}
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}
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private void UpdateStreamBitrate(
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ushort PID,
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ushort PTSPID,
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ulong PTS,
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ulong PTSDiff)
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{
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if (Playlists == null) return;
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var streamState = StreamStates[PID];
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double streamTime = (double)PTS / 90000;
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double streamInterval = (double)PTSDiff / 90000;
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double streamOffset = streamTime + streamInterval;
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foreach (var playlist in Playlists)
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{
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foreach (var clip in playlist.StreamClips)
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{
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if (clip.Name != this.Name) continue;
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if (streamTime == 0 ||
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(streamTime >= clip.TimeIn &&
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streamTime <= clip.TimeOut))
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{
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clip.PayloadBytes += streamState.WindowBytes;
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clip.PacketCount += streamState.WindowPackets;
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if (streamOffset > clip.TimeIn &&
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streamOffset - clip.TimeIn > clip.PacketSeconds)
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{
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clip.PacketSeconds = streamOffset - clip.TimeIn;
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}
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var playlistStreams = playlist.Streams;
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if (clip.AngleIndex > 0 &&
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clip.AngleIndex < playlist.AngleStreams.Count + 1)
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{
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playlistStreams = playlist.AngleStreams[clip.AngleIndex - 1];
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}
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if (playlistStreams.ContainsKey(PID))
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{
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var stream = playlistStreams[PID];
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stream.PayloadBytes += streamState.WindowBytes;
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stream.PacketCount += streamState.WindowPackets;
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if (stream.IsVideoStream)
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{
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stream.PacketSeconds += streamInterval;
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stream.ActiveBitRate = (long)Math.Round(
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((stream.PayloadBytes * 8.0) /
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stream.PacketSeconds));
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}
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if (stream.StreamType == TSStreamType.AC3_TRUE_HD_AUDIO &&
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((TSAudioStream)stream).CoreStream != null)
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{
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stream.ActiveBitRate -=
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((TSAudioStream)stream).CoreStream.BitRate;
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}
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}
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}
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}
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}
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if (Streams.ContainsKey(PID))
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{
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var stream = Streams[PID];
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stream.PayloadBytes += streamState.WindowBytes;
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stream.PacketCount += streamState.WindowPackets;
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if (stream.IsVideoStream)
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{
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var diag = new TSStreamDiagnostics();
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diag.Marker = (double)PTS / 90000;
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diag.Interval = (double)PTSDiff / 90000;
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diag.Bytes = streamState.WindowBytes;
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diag.Packets = streamState.WindowPackets;
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diag.Tag = streamState.StreamTag;
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StreamDiagnostics[PID].Add(diag);
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stream.PacketSeconds += streamInterval;
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}
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}
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streamState.WindowPackets = 0;
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streamState.WindowBytes = 0;
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}
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public void Scan(List<TSPlaylistFile> playlists, bool isFullScan)
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{
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if (playlists == null || playlists.Count == 0)
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{
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return;
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}
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Playlists = playlists;
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int dataSize = 16384;
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Stream fileStream = null;
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try
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{
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string fileName;
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if (BDInfoSettings.EnableSSIF &&
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InterleavedFile != null)
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{
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fileName = InterleavedFile.FileInfo.FullName;
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}
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else
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{
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fileName = FileInfo.FullName;
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}
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fileStream = _fileSystem.GetFileStream(
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fileName,
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FileOpenMode.Open,
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FileAccessMode.Read,
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FileShareMode.Read,
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false);
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Size = 0;
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Length = 0;
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Streams.Clear();
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StreamStates.Clear();
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StreamDiagnostics.Clear();
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var parser =
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new TSPacketParser();
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long fileLength = (uint)fileStream.Length;
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byte[] buffer = new byte[dataSize];
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int bufferLength = 0;
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while ((bufferLength =
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fileStream.Read(buffer, 0, buffer.Length)) > 0)
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{
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int offset = 0;
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for (int i = 0; i < bufferLength; i++)
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{
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if (parser.SyncState == false)
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{
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if (parser.TimeCodeParse > 0)
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{
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parser.TimeCodeParse--;
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switch (parser.TimeCodeParse)
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{
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case 3:
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parser.TimeCode = 0;
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parser.TimeCode |=
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((uint)buffer[i] & 0x3F) << 24;
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break;
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case 2:
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parser.TimeCode |=
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((uint)buffer[i] & 0xFF) << 16;
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break;
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case 1:
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parser.TimeCode |=
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((uint)buffer[i] & 0xFF) << 8;
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break;
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case 0:
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parser.TimeCode |=
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((uint)buffer[i] & 0xFF);
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break;
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}
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}
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else if (buffer[i] == 0x47)
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{
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parser.SyncState = true;
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parser.PacketLength = 187;
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parser.TimeCodeParse = 4;
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parser.HeaderParse = 3;
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}
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}
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else if (parser.HeaderParse > 0)
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{
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parser.PacketLength--;
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parser.HeaderParse--;
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switch (parser.HeaderParse)
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{
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case 2:
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{
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parser.TransportErrorIndicator =
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(byte)((buffer[i] >> 7) & 0x1);
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parser.PayloadUnitStartIndicator =
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(byte)((buffer[i] >> 6) & 0x1);
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parser.TransportPriority =
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(byte)((buffer[i] >> 5) & 0x1);
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parser.PID =
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(ushort)((buffer[i] & 0x1f) << 8);
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}
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break;
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case 1:
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{
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parser.PID |= (ushort)buffer[i];
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if (Streams.ContainsKey(parser.PID))
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{
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parser.Stream = Streams[parser.PID];
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}
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else
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{
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parser.Stream = null;
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}
|
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if (!StreamStates.ContainsKey(parser.PID))
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{
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StreamStates[parser.PID] = new TSStreamState();
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}
|
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parser.StreamState = StreamStates[parser.PID];
|
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parser.StreamState.TotalPackets++;
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parser.StreamState.WindowPackets++;
|
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parser.TotalPackets++;
|
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}
|
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break;
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|
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case 0:
|
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{
|
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parser.TransportScramblingControl =
|
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(byte)((buffer[i] >> 6) & 0x3);
|
|
parser.AdaptionFieldControl =
|
|
(byte)((buffer[i] >> 4) & 0x3);
|
|
|
|
if ((parser.AdaptionFieldControl & 0x2) == 0x2)
|
|
{
|
|
parser.AdaptionFieldState = true;
|
|
}
|
|
if (parser.PayloadUnitStartIndicator == 1)
|
|
{
|
|
if (parser.PID == 0)
|
|
{
|
|
parser.PATSectionStart = true;
|
|
}
|
|
else if (parser.PID == parser.PMTPID)
|
|
{
|
|
parser.PMTSectionStart = true;
|
|
}
|
|
else if (parser.StreamState != null &&
|
|
parser.StreamState.TransferState)
|
|
{
|
|
parser.StreamState.TransferState = false;
|
|
parser.StreamState.TransferCount++;
|
|
|
|
bool isFinished = ScanStream(
|
|
parser.Stream,
|
|
parser.StreamState,
|
|
parser.StreamState.StreamBuffer);
|
|
|
|
if (!isFullScan && isFinished)
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (parser.AdaptionFieldState)
|
|
{
|
|
parser.PacketLength--;
|
|
parser.AdaptionFieldParse = buffer[i];
|
|
parser.AdaptionFieldLength = buffer[i];
|
|
parser.AdaptionFieldState = false;
|
|
}
|
|
else if (parser.AdaptionFieldParse > 0)
|
|
{
|
|
parser.PacketLength--;
|
|
parser.AdaptionFieldParse--;
|
|
if ((parser.AdaptionFieldLength - parser.AdaptionFieldParse) == 1)
|
|
{
|
|
if ((buffer[i] & 0x10) == 0x10)
|
|
{
|
|
parser.PCRParse = 6;
|
|
parser.PCR = 0;
|
|
}
|
|
}
|
|
else if (parser.PCRParse > 0)
|
|
{
|
|
parser.PCRParse--;
|
|
parser.PCR = (parser.PCR << 8) + (ulong)buffer[i];
|
|
if (parser.PCRParse == 0)
|
|
{
|
|
parser.PreviousPCR = parser.PCR;
|
|
parser.PCR = (parser.PCR & 0x1FF) +
|
|
((parser.PCR >> 15) * 300);
|
|
}
|
|
parser.PCRCount++;
|
|
}
|
|
if (parser.PacketLength == 0)
|
|
{
|
|
parser.SyncState = false;
|
|
}
|
|
}
|
|
else if (parser.PID == 0)
|
|
{
|
|
if (parser.PATTransferState)
|
|
{
|
|
if ((bufferLength - i) > parser.PATSectionLength)
|
|
{
|
|
offset = parser.PATSectionLength;
|
|
}
|
|
else
|
|
{
|
|
offset = (bufferLength - i);
|
|
}
|
|
if (parser.PacketLength <= offset)
|
|
{
|
|
offset = parser.PacketLength;
|
|
}
|
|
|
|
for (int k = 0; k < offset; k++)
|
|
{
|
|
parser.PAT[parser.PATOffset++] = buffer[i++];
|
|
parser.PATSectionLength--;
|
|
parser.PacketLength--;
|
|
}
|
|
--i;
|
|
|
|
if (parser.PATSectionLength == 0)
|
|
{
|
|
parser.PATTransferState = false;
|
|
if (parser.PATSectionNumber == parser.PATLastSectionNumber)
|
|
{
|
|
for (int k = 0; k < (parser.PATOffset - 4); k += 4)
|
|
{
|
|
uint programNumber = (uint)
|
|
((parser.PAT[k] << 8) +
|
|
parser.PAT[k + 1]);
|
|
|
|
ushort programPID = (ushort)
|
|
(((parser.PAT[k + 2] & 0x1F) << 8) +
|
|
parser.PAT[k + 3]);
|
|
|
|
if (programNumber == 1)
|
|
{
|
|
parser.PMTPID = programPID;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
--parser.PacketLength;
|
|
if (parser.PATSectionStart)
|
|
{
|
|
parser.PATPointerField = buffer[i];
|
|
if (parser.PATPointerField == 0)
|
|
{
|
|
parser.PATSectionLengthParse = 3;
|
|
}
|
|
parser.PATSectionStart = false;
|
|
}
|
|
else if (parser.PATPointerField > 0)
|
|
{
|
|
--parser.PATPointerField;
|
|
if (parser.PATPointerField == 0)
|
|
{
|
|
parser.PATSectionLengthParse = 3;
|
|
}
|
|
}
|
|
else if (parser.PATSectionLengthParse > 0)
|
|
{
|
|
--parser.PATSectionLengthParse;
|
|
switch (parser.PATSectionLengthParse)
|
|
{
|
|
case 2:
|
|
break;
|
|
case 1:
|
|
parser.PATSectionLength = (ushort)
|
|
((buffer[i] & 0xF) << 8);
|
|
break;
|
|
case 0:
|
|
parser.PATSectionLength |= buffer[i];
|
|
if (parser.PATSectionLength > 1021)
|
|
{
|
|
parser.PATSectionLength = 0;
|
|
}
|
|
else
|
|
{
|
|
parser.PATSectionParse = 5;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (parser.PATSectionParse > 0)
|
|
{
|
|
--parser.PATSectionLength;
|
|
--parser.PATSectionParse;
|
|
|
|
switch (parser.PATSectionParse)
|
|
{
|
|
case 4:
|
|
parser.TransportStreamId = (ushort)
|
|
(buffer[i] << 8);
|
|
break;
|
|
case 3:
|
|
parser.TransportStreamId |= buffer[i];
|
|
break;
|
|
case 2:
|
|
break;
|
|
case 1:
|
|
parser.PATSectionNumber = buffer[i];
|
|
if (parser.PATSectionNumber == 0)
|
|
{
|
|
parser.PATOffset = 0;
|
|
}
|
|
break;
|
|
case 0:
|
|
parser.PATLastSectionNumber = buffer[i];
|
|
parser.PATTransferState = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (parser.PacketLength == 0)
|
|
{
|
|
parser.SyncState = false;
|
|
}
|
|
}
|
|
else if (parser.PID == parser.PMTPID)
|
|
{
|
|
if (parser.PMTTransferState)
|
|
{
|
|
if ((bufferLength - i) >= parser.PMTSectionLength)
|
|
{
|
|
offset = parser.PMTSectionLength;
|
|
}
|
|
else
|
|
{
|
|
offset = (bufferLength - i);
|
|
}
|
|
if (parser.PacketLength <= offset)
|
|
{
|
|
offset = parser.PacketLength;
|
|
}
|
|
if (!parser.PMT.ContainsKey(parser.PID))
|
|
{
|
|
parser.PMT[parser.PID] = new byte[1024];
|
|
}
|
|
|
|
byte[] PMT = parser.PMT[parser.PID];
|
|
for (int k = 0; k < offset; k++)
|
|
{
|
|
PMT[parser.PMTOffset++] = buffer[i++];
|
|
--parser.PMTSectionLength;
|
|
--parser.PacketLength;
|
|
}
|
|
--i;
|
|
|
|
if (parser.PMTSectionLength == 0)
|
|
{
|
|
parser.PMTTransferState = false;
|
|
if (parser.PMTSectionNumber == parser.PMTLastSectionNumber)
|
|
{
|
|
//Console.WriteLine("PMT Start: " + parser.PMTTemp);
|
|
try
|
|
{
|
|
for (int k = 0; k < (parser.PMTOffset - 4); k += 5)
|
|
{
|
|
byte streamType = PMT[k];
|
|
|
|
ushort streamPID = (ushort)
|
|
(((PMT[k + 1] & 0x1F) << 8) +
|
|
PMT[k + 2]);
|
|
|
|
ushort streamInfoLength = (ushort)
|
|
(((PMT[k + 3] & 0xF) << 8) +
|
|
PMT[k + 4]);
|
|
|
|
/*
|
|
if (streamInfoLength == 2)
|
|
{
|
|
// TODO: Cleanup
|
|
//streamInfoLength = 0;
|
|
}
|
|
|
|
Console.WriteLine(string.Format(
|
|
"Type: {0} PID: {1} Length: {2}",
|
|
streamType, streamPID, streamInfoLength));
|
|
*/
|
|
|
|
if (!Streams.ContainsKey(streamPID))
|
|
{
|
|
var streamDescriptors =
|
|
new List<TSDescriptor>();
|
|
|
|
/*
|
|
* TODO: Getting bad streamInfoLength
|
|
if (streamInfoLength > 0)
|
|
{
|
|
for (int d = 0; d < streamInfoLength; d++)
|
|
{
|
|
byte name = PMT[k + d + 5];
|
|
byte length = PMT[k + d + 6];
|
|
TSDescriptor descriptor =
|
|
new TSDescriptor(name, length);
|
|
for (int v = 0; v < length; v++)
|
|
{
|
|
descriptor.Value[v] =
|
|
PMT[k + d + v + 7];
|
|
}
|
|
streamDescriptors.Add(descriptor);
|
|
d += (length + 1);
|
|
}
|
|
}
|
|
*/
|
|
CreateStream(streamPID, streamType, streamDescriptors);
|
|
}
|
|
k += streamInfoLength;
|
|
}
|
|
}
|
|
catch
|
|
{
|
|
// TODO
|
|
//Console.WriteLine(ex.Message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
--parser.PacketLength;
|
|
if (parser.PMTSectionStart)
|
|
{
|
|
parser.PMTPointerField = buffer[i];
|
|
if (parser.PMTPointerField == 0)
|
|
{
|
|
parser.PMTSectionLengthParse = 3;
|
|
}
|
|
parser.PMTSectionStart = false;
|
|
}
|
|
else if (parser.PMTPointerField > 0)
|
|
{
|
|
--parser.PMTPointerField;
|
|
if (parser.PMTPointerField == 0)
|
|
{
|
|
parser.PMTSectionLengthParse = 3;
|
|
}
|
|
}
|
|
else if (parser.PMTSectionLengthParse > 0)
|
|
{
|
|
--parser.PMTSectionLengthParse;
|
|
switch (parser.PMTSectionLengthParse)
|
|
{
|
|
case 2:
|
|
if (buffer[i] != 0x2)
|
|
{
|
|
parser.PMTSectionLengthParse = 0;
|
|
}
|
|
break;
|
|
case 1:
|
|
parser.PMTSectionLength = (ushort)
|
|
((buffer[i] & 0xF) << 8);
|
|
break;
|
|
case 0:
|
|
parser.PMTSectionLength |= buffer[i];
|
|
if (parser.PMTSectionLength > 1021)
|
|
{
|
|
parser.PMTSectionLength = 0;
|
|
}
|
|
else
|
|
{
|
|
parser.PMTSectionParse = 9;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (parser.PMTSectionParse > 0)
|
|
{
|
|
--parser.PMTSectionLength;
|
|
--parser.PMTSectionParse;
|
|
|
|
switch (parser.PMTSectionParse)
|
|
{
|
|
case 8:
|
|
case 7:
|
|
break;
|
|
case 6:
|
|
parser.PMTTemp = buffer[i];
|
|
break;
|
|
case 5:
|
|
parser.PMTSectionNumber = buffer[i];
|
|
if (parser.PMTSectionNumber == 0)
|
|
{
|
|
parser.PMTOffset = 0;
|
|
}
|
|
break;
|
|
case 4:
|
|
parser.PMTLastSectionNumber = buffer[i];
|
|
break;
|
|
case 3:
|
|
parser.PCRPID = (ushort)
|
|
((buffer[i] & 0x1F) << 8);
|
|
break;
|
|
case 2:
|
|
parser.PCRPID |= buffer[i];
|
|
break;
|
|
case 1:
|
|
parser.PMTProgramInfoLength = (ushort)
|
|
((buffer[i] & 0xF) << 8);
|
|
break;
|
|
case 0:
|
|
parser.PMTProgramInfoLength |= buffer[i];
|
|
if (parser.PMTProgramInfoLength == 0)
|
|
{
|
|
parser.PMTTransferState = true;
|
|
}
|
|
else
|
|
{
|
|
parser.PMTProgramDescriptorLengthParse = 2;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (parser.PMTProgramInfoLength > 0)
|
|
{
|
|
--parser.PMTSectionLength;
|
|
--parser.PMTProgramInfoLength;
|
|
|
|
if (parser.PMTProgramDescriptorLengthParse > 0)
|
|
{
|
|
--parser.PMTProgramDescriptorLengthParse;
|
|
switch (parser.PMTProgramDescriptorLengthParse)
|
|
{
|
|
case 1:
|
|
parser.PMTProgramDescriptor = buffer[i];
|
|
break;
|
|
case 0:
|
|
parser.PMTProgramDescriptorLength = buffer[i];
|
|
parser.PMTProgramDescriptors.Add(
|
|
new TSDescriptor(
|
|
parser.PMTProgramDescriptor,
|
|
parser.PMTProgramDescriptorLength));
|
|
break;
|
|
}
|
|
}
|
|
else if (parser.PMTProgramDescriptorLength > 0)
|
|
{
|
|
--parser.PMTProgramDescriptorLength;
|
|
|
|
var descriptor = parser.PMTProgramDescriptors[
|
|
parser.PMTProgramDescriptors.Count - 1];
|
|
|
|
int valueIndex =
|
|
descriptor.Value.Length -
|
|
parser.PMTProgramDescriptorLength - 1;
|
|
|
|
descriptor.Value[valueIndex] = buffer[i];
|
|
|
|
if (parser.PMTProgramDescriptorLength == 0 &&
|
|
parser.PMTProgramInfoLength > 0)
|
|
{
|
|
parser.PMTProgramDescriptorLengthParse = 2;
|
|
}
|
|
}
|
|
if (parser.PMTProgramInfoLength == 0)
|
|
{
|
|
parser.PMTTransferState = true;
|
|
}
|
|
}
|
|
}
|
|
if (parser.PacketLength == 0)
|
|
{
|
|
parser.SyncState = false;
|
|
}
|
|
}
|
|
else if (parser.Stream != null &&
|
|
parser.StreamState != null &&
|
|
parser.TransportScramblingControl == 0)
|
|
{
|
|
var stream = parser.Stream;
|
|
var streamState = parser.StreamState;
|
|
|
|
streamState.Parse =
|
|
(streamState.Parse << 8) + buffer[i];
|
|
|
|
if (streamState.TransferState)
|
|
{
|
|
if ((bufferLength - i) >= streamState.PacketLength &&
|
|
streamState.PacketLength > 0)
|
|
{
|
|
offset = streamState.PacketLength;
|
|
}
|
|
else
|
|
{
|
|
offset = (bufferLength - i);
|
|
}
|
|
if (parser.PacketLength <= offset)
|
|
{
|
|
offset = parser.PacketLength;
|
|
}
|
|
streamState.TransferLength = offset;
|
|
|
|
if (!stream.IsInitialized ||
|
|
stream.IsVideoStream)
|
|
{
|
|
streamState.StreamBuffer.Add(
|
|
buffer, i, offset);
|
|
}
|
|
else
|
|
{
|
|
streamState.StreamBuffer.TransferLength += offset;
|
|
}
|
|
|
|
i += (int)(streamState.TransferLength - 1);
|
|
streamState.PacketLength -= streamState.TransferLength;
|
|
parser.PacketLength -= (byte)streamState.TransferLength;
|
|
|
|
streamState.TotalBytes += (ulong)streamState.TransferLength;
|
|
streamState.WindowBytes += (ulong)streamState.TransferLength;
|
|
|
|
if (streamState.PacketLength == 0)
|
|
{
|
|
streamState.TransferState = false;
|
|
streamState.TransferCount++;
|
|
bool isFinished = ScanStream(
|
|
stream,
|
|
streamState,
|
|
streamState.StreamBuffer);
|
|
|
|
if (!isFullScan && isFinished)
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
--parser.PacketLength;
|
|
|
|
bool headerFound = false;
|
|
if (stream.IsVideoStream &&
|
|
streamState.Parse == 0x000001FD)
|
|
{
|
|
headerFound = true;
|
|
}
|
|
if (stream.IsVideoStream &&
|
|
streamState.Parse >= 0x000001E0 &&
|
|
streamState.Parse <= 0x000001EF)
|
|
{
|
|
headerFound = true;
|
|
}
|
|
if (stream.IsAudioStream &&
|
|
streamState.Parse == 0x000001BD)
|
|
{
|
|
headerFound = true;
|
|
}
|
|
if (stream.IsAudioStream &&
|
|
(streamState.Parse == 0x000001FA ||
|
|
streamState.Parse == 0x000001FD))
|
|
{
|
|
headerFound = true;
|
|
}
|
|
|
|
if (!stream.IsVideoStream &&
|
|
!stream.IsAudioStream &&
|
|
(streamState.Parse == 0x000001FA ||
|
|
streamState.Parse == 0x000001FD ||
|
|
streamState.Parse == 0x000001BD ||
|
|
(streamState.Parse >= 0x000001E0 &&
|
|
streamState.Parse <= 0x000001EF)))
|
|
{
|
|
headerFound = true;
|
|
}
|
|
|
|
if (headerFound)
|
|
{
|
|
streamState.PacketLengthParse = 2;
|
|
#if DEBUG
|
|
streamState.PESHeaderIndex = 0;
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)((streamState.Parse >> 24) & 0xFF);
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)((streamState.Parse >> 16) & 0xFF);
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)((streamState.Parse >> 8) & 0xFF);
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
}
|
|
else if (streamState.PacketLengthParse > 0)
|
|
{
|
|
--streamState.PacketLengthParse;
|
|
switch (streamState.PacketLengthParse)
|
|
{
|
|
case 1:
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 0:
|
|
streamState.PacketLength =
|
|
(int)(streamState.Parse & 0xFFFF);
|
|
streamState.PacketParse = 3;
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
else if (streamState.PacketParse > 0)
|
|
{
|
|
--streamState.PacketLength;
|
|
--streamState.PacketParse;
|
|
|
|
switch (streamState.PacketParse)
|
|
{
|
|
case 2:
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 1:
|
|
streamState.PESHeaderFlags =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 0:
|
|
streamState.PESHeaderLength =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
if ((streamState.PESHeaderFlags & 0xC0) == 0x80)
|
|
{
|
|
streamState.PTSParse = 5;
|
|
}
|
|
else if ((streamState.PESHeaderFlags & 0xC0) == 0xC0)
|
|
{
|
|
streamState.DTSParse = 10;
|
|
}
|
|
if (streamState.PESHeaderLength == 0)
|
|
{
|
|
streamState.TransferState = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (streamState.PTSParse > 0)
|
|
{
|
|
--streamState.PacketLength;
|
|
--streamState.PESHeaderLength;
|
|
--streamState.PTSParse;
|
|
|
|
switch (streamState.PTSParse)
|
|
{
|
|
case 4:
|
|
streamState.PTSTemp =
|
|
((streamState.Parse & 0xE) << 29);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
break;
|
|
|
|
case 3:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFF) << 22);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 2:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFE) << 14);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 1:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFF) << 7);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 0:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFE) >> 1);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
streamState.PTS = streamState.PTSTemp;
|
|
|
|
if (streamState.PTS > streamState.PTSLast)
|
|
{
|
|
if (streamState.PTSLast > 0)
|
|
{
|
|
streamState.PTSTransfer = (streamState.PTS - streamState.PTSLast);
|
|
}
|
|
streamState.PTSLast = streamState.PTS;
|
|
}
|
|
|
|
streamState.PTSDiff = streamState.PTS - streamState.DTSPrev;
|
|
|
|
if (streamState.PTSCount > 0 &&
|
|
stream.IsVideoStream)
|
|
{
|
|
UpdateStreamBitrates(stream.PID, streamState.PTS, streamState.PTSDiff);
|
|
if (streamState.DTSTemp < parser.PTSFirst)
|
|
{
|
|
parser.PTSFirst = streamState.DTSTemp;
|
|
}
|
|
if (streamState.DTSTemp > parser.PTSLast)
|
|
{
|
|
parser.PTSLast = streamState.DTSTemp;
|
|
}
|
|
Length = (double)(parser.PTSLast - parser.PTSFirst) / 90000;
|
|
}
|
|
|
|
streamState.DTSPrev = streamState.PTS;
|
|
streamState.PTSCount++;
|
|
if (streamState.PESHeaderLength == 0)
|
|
{
|
|
streamState.TransferState = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (streamState.DTSParse > 0)
|
|
{
|
|
--streamState.PacketLength;
|
|
--streamState.PESHeaderLength;
|
|
--streamState.DTSParse;
|
|
|
|
switch (streamState.DTSParse)
|
|
{
|
|
case 9:
|
|
streamState.PTSTemp =
|
|
((streamState.Parse & 0xE) << 29);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 8:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFF) << 22);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 7:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFE) << 14);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
break;
|
|
|
|
case 6:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFF) << 7);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 5:
|
|
streamState.PTSTemp |=
|
|
((streamState.Parse & 0xFE) >> 1);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
streamState.PTS = streamState.PTSTemp;
|
|
if (streamState.PTS > streamState.PTSLast)
|
|
{
|
|
streamState.PTSLast = streamState.PTS;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
streamState.DTSTemp =
|
|
((streamState.Parse & 0xE) << 29);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
break;
|
|
|
|
case 3:
|
|
streamState.DTSTemp |=
|
|
((streamState.Parse & 0xFF) << 22);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
break;
|
|
|
|
case 2:
|
|
streamState.DTSTemp |=
|
|
((streamState.Parse & 0xFE) << 14);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
break;
|
|
|
|
case 1:
|
|
streamState.DTSTemp |=
|
|
((streamState.Parse & 0xFF) << 7);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
break;
|
|
|
|
case 0:
|
|
streamState.DTSTemp |=
|
|
((streamState.Parse & 0xFE) >> 1);
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xff);
|
|
#endif
|
|
streamState.PTSDiff = streamState.DTSTemp - streamState.DTSPrev;
|
|
|
|
if (streamState.PTSCount > 0 &&
|
|
stream.IsVideoStream)
|
|
{
|
|
UpdateStreamBitrates(stream.PID, streamState.DTSTemp, streamState.PTSDiff);
|
|
if (streamState.DTSTemp < parser.PTSFirst)
|
|
{
|
|
parser.PTSFirst = streamState.DTSTemp;
|
|
}
|
|
if (streamState.DTSTemp > parser.PTSLast)
|
|
{
|
|
parser.PTSLast = streamState.DTSTemp;
|
|
}
|
|
Length = (double)(parser.PTSLast - parser.PTSFirst) / 90000;
|
|
}
|
|
streamState.DTSPrev = streamState.DTSTemp;
|
|
streamState.PTSCount++;
|
|
if (streamState.PESHeaderLength == 0)
|
|
{
|
|
streamState.TransferState = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (streamState.PESHeaderLength > 0)
|
|
{
|
|
--streamState.PacketLength;
|
|
--streamState.PESHeaderLength;
|
|
#if DEBUG
|
|
streamState.PESHeader[streamState.PESHeaderIndex++] =
|
|
(byte)(streamState.Parse & 0xFF);
|
|
#endif
|
|
if (streamState.PESHeaderLength == 0)
|
|
{
|
|
streamState.TransferState = true;
|
|
}
|
|
}
|
|
}
|
|
if (parser.PacketLength == 0)
|
|
{
|
|
parser.SyncState = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
parser.PacketLength--;
|
|
if ((bufferLength - i) >= parser.PacketLength)
|
|
{
|
|
i = i + parser.PacketLength;
|
|
parser.PacketLength = 0;
|
|
}
|
|
else
|
|
{
|
|
parser.PacketLength -= (byte)((bufferLength - i) + 1);
|
|
i = bufferLength;
|
|
}
|
|
if (parser.PacketLength == 0)
|
|
{
|
|
parser.SyncState = false;
|
|
}
|
|
}
|
|
}
|
|
Size += bufferLength;
|
|
}
|
|
|
|
ulong PTSLast = 0;
|
|
ulong PTSDiff = 0;
|
|
foreach (var stream in Streams.Values)
|
|
{
|
|
if (!stream.IsVideoStream) continue;
|
|
|
|
if (StreamStates.ContainsKey(stream.PID) &&
|
|
StreamStates[stream.PID].PTSLast > PTSLast)
|
|
{
|
|
PTSLast = StreamStates[stream.PID].PTSLast;
|
|
PTSDiff = PTSLast - StreamStates[stream.PID].DTSPrev;
|
|
}
|
|
UpdateStreamBitrates(stream.PID, PTSLast, PTSDiff);
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
if (fileStream != null)
|
|
{
|
|
fileStream.Dispose();
|
|
}
|
|
}
|
|
}
|
|
|
|
private TSStream CreateStream(
|
|
ushort streamPID,
|
|
byte streamType,
|
|
List<TSDescriptor> streamDescriptors)
|
|
{
|
|
TSStream stream = null;
|
|
|
|
switch ((TSStreamType)streamType)
|
|
{
|
|
case TSStreamType.MVC_VIDEO:
|
|
case TSStreamType.AVC_VIDEO:
|
|
case TSStreamType.MPEG1_VIDEO:
|
|
case TSStreamType.MPEG2_VIDEO:
|
|
case TSStreamType.VC1_VIDEO:
|
|
{
|
|
stream = new TSVideoStream();
|
|
}
|
|
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:
|
|
{
|
|
stream = new TSAudioStream();
|
|
}
|
|
break;
|
|
|
|
case TSStreamType.INTERACTIVE_GRAPHICS:
|
|
case TSStreamType.PRESENTATION_GRAPHICS:
|
|
{
|
|
stream = new TSGraphicsStream();
|
|
}
|
|
break;
|
|
|
|
case TSStreamType.SUBTITLE:
|
|
{
|
|
stream = new TSTextStream();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (stream != null &&
|
|
!Streams.ContainsKey(streamPID))
|
|
{
|
|
stream.PID = streamPID;
|
|
stream.StreamType = (TSStreamType)streamType;
|
|
stream.Descriptors = streamDescriptors;
|
|
Streams[stream.PID] = stream;
|
|
}
|
|
if (!StreamDiagnostics.ContainsKey(streamPID))
|
|
{
|
|
StreamDiagnostics[streamPID] =
|
|
new List<TSStreamDiagnostics>();
|
|
}
|
|
|
|
return stream;
|
|
}
|
|
}
|
|
}
|