49 lines
1.7 KiB
C#
49 lines
1.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using skyscraper5.Dvb;
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using skyscraper5.Mpeg2;
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using skyscraper5.PrivateDataSpecifiers.Eacem;
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using skyscraper5.Skyscraper;
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using skyscraper5.Skyscraper.IO;
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using skyscraper5.Skyscraper.Plugins;
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namespace skyscraper5.Eacem.Descriptors
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{
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//The official EICTA/EACEM specification is not available, so this is guesswork.
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//Guesses taken from https://confindustriaradiotv.it/wp-content/uploads/2021/03/HD-Z-BOOK-Final-1.0.pdf
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[SkyscraperPlugin]
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[UserDefinedDescriptor(0x00000028, 0x83,"NIT","BAT")]
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[BannedTable("SDT")] // <-- According to a document from ziggo.
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[DescriptorPluginNitHandler(typeof(NitHook))]
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[DescriptorPluginBatHandler(typeof(BatHook))]
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class EacemLogicalChannelDescriptor : TsDescriptor
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{
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public EacemLogicalChannelDescriptor(byte[] buffer)
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{
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LogicalChannels = new LogicalChannelNumberEntry[buffer.Length / 4];
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MemoryStream ms = new MemoryStream(buffer, false);
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for (int i = 0; i < LogicalChannels.Length; i++)
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{
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LogicalChannelNumberEntry lcn = new LogicalChannelNumberEntry();
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LogicalChannels[i] = lcn;
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lcn.ServiceId = ms.ReadUInt16BE();
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ushort readUInt16Be = ms.ReadUInt16BE();
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lcn.VisibleServiceFlag = (readUInt16Be & 0x8000) != 0;
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lcn.LogicalChannelNumber = (readUInt16Be & 0x03ff);
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}
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}
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public LogicalChannelNumberEntry[] LogicalChannels { get; private set; }
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public class LogicalChannelNumberEntry : BaseLcn
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{
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public bool VisibleServiceFlag { get; set; }
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}
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}
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}
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