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Add project files.
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‎Legacy-Container-Extract.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.6.33723.286
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Legacy-Container-Extract", "Legacy-Container-Extract\Legacy-Container-Extract.csproj", "{FF5C2474-A0C3-4D16-955F-EC1CDB81A599}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{FF5C2474-A0C3-4D16-955F-EC1CDB81A599}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{FF5C2474-A0C3-4D16-955F-EC1CDB81A599}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{FF5C2474-A0C3-4D16-955F-EC1CDB81A599}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{FF5C2474-A0C3-4D16-955F-EC1CDB81A599}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {B257149C-109C-4079-985E-46D432C18A4F}
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EndGlobalSection
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EndGlobal

‎Legacy-Container-Extract/Legacy-Container-Extract.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net7.0</TargetFramework>
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<RootNamespace>Legacy_Container_Extract</RootNamespace>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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</Project>

‎Legacy-Container-Extract/Program.cs‎

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using System;
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using System.IO;
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using System.Linq;
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class Program
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{
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static void Main(string[] args)
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{
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Console.Write("Enter the directory of files: ");
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string directory = Console.ReadLine();
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if (!Directory.Exists(directory))
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{
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Console.WriteLine("Directory not found.");
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return;
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}
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string[] files = Directory.GetFiles(directory);
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string outputDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Content");
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Directory.CreateDirectory(outputDirectory);
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string convertAllType = null;
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string ignoreAllType = null;
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foreach (var file in files)
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{
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try
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{
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byte[] fileBytes = File.ReadAllBytes(file);
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string fileContent = System.Text.Encoding.ASCII.GetString(fileBytes);
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int blfIndex = fileContent.IndexOf("_blf");
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if (blfIndex == -1)
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continue;
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string content = System.Text.Encoding.ASCII.GetString(fileBytes.Skip(0xD0C0).Take(0x7F).ToArray()).Trim('\0');
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string sanitizedContent = string.Concat(content.Split(Path.GetInvalidFileNameChars()));
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string creatorName = System.Text.Encoding.ASCII.GetString(fileBytes.Skip(0xD088).Take(0x0F).ToArray()).Trim('\0');
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string creatorXUID = BitConverter.ToString(fileBytes.Skip(0xD080).Take(0x08).ToArray()).Replace("-", "");
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string modifierName = System.Text.Encoding.ASCII.GetString(fileBytes.Skip(0xD0AC).Take(0x0F).ToArray()).Trim('\0');
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string modifierXUID = BitConverter.ToString(fileBytes.Skip(0xD0A4).Take(0x08).ToArray()).Replace("-", "");
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string description = System.Text.Encoding.ASCII.GetString(fileBytes.Skip(0xD1C0).Take(0xFF).ToArray()).Trim('\0');
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string headerType = System.Text.Encoding.ASCII.GetString(fileBytes.Skip(0xD2F0).Take(0x04).ToArray()).Trim('\0');
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string contentType = null;
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switch (headerType)
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{
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case "mpvr":
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contentType = "Gametypes";
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break;
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case "mvar":
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contentType = "Map variants";
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break;
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case "athr":
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contentType = "Theater films";
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break;
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case "scnc":
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contentType = "Screenshots";
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break;
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}
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Console.WriteLine();
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Console.WriteLine($"File: {Path.GetFileName(file)}");
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Console.WriteLine($"Creator: {creatorName} (XUID: {creatorXUID})");
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Console.WriteLine($"Modifier: {modifierName} (XUID: {modifierXUID})");
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Console.WriteLine($"Content: {content}");
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Console.WriteLine($"Description: {description}");
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Console.WriteLine($"Header Type: {headerType}");
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if (headerType == ignoreAllType)
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{
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Console.WriteLine($"Skipping all files of type: {headerType}");
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continue;
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}
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if (headerType == convertAllType)
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{
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Console.WriteLine($"Automatically converting all files of type: {headerType}");
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}
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else
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{
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Console.Write("Would you like to convert this file? (y)es / (n)o / (a)ll of type / (i)gnore all of type: ");
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string response = Console.ReadLine()?.ToLower();
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if (response == "a")
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{
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convertAllType = headerType;
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}
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else if (response == "i")
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{
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ignoreAllType = headerType;
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Console.WriteLine($"Skipping all files of type: {headerType}");
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continue;
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}
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else if (response != "y")
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{
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continue;
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}
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}
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if (headerType == "scnc")
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{
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int jpgStartIndex = FindJpgStart(fileBytes, blfIndex);
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int jpgEndIndex = FindJpgEnd(fileBytes, jpgStartIndex);
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if (jpgStartIndex == -1 || jpgEndIndex == -1)
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{
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Console.WriteLine("Valid JPEG range not found. Skipping file.");
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continue;
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}
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byte[] jpgBytes = fileBytes.Skip(jpgStartIndex).Take(jpgEndIndex - jpgStartIndex + 1).ToArray();
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string headerDirectory = Path.Combine(outputDirectory, contentType);
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Directory.CreateDirectory(headerDirectory);
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string outputFile = Path.Combine(headerDirectory, sanitizedContent + ".jpg");
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File.WriteAllBytes(outputFile, jpgBytes);
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Console.WriteLine($"JPEG file saved: {outputFile}");
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continue;
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}
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int stopSequenceIndex = FindStopSequence(fileBytes, blfIndex);
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if (stopSequenceIndex == -1)
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{
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Console.WriteLine("Stop sequence not found. Skipping file.");
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continue;
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}
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byte[] extractedBytes = fileBytes.Skip(blfIndex).Take(stopSequenceIndex - blfIndex).ToArray();
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string extension = null;
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if (headerType == "mpvr")
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{
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extension = ".bin";
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}
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else if (headerType == "mvar")
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{
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extension = ".mvar";
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}
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else if (headerType == "athr")
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{
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extension = ".film";
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}
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string headerDirectoryForOthers = Path.Combine(outputDirectory, contentType);
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Directory.CreateDirectory(headerDirectoryForOthers);
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string outputFileForOthers = Path.Combine(headerDirectoryForOthers, sanitizedContent + extension);
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File.WriteAllBytes(outputFileForOthers, extractedBytes);
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Console.WriteLine($"File saved: {outputFileForOthers}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error processing file {Path.GetFileName(file)}: {ex.Message}");
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}
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}
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Console.WriteLine("Processing complete.");
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}
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static int FindStopSequence(byte[] fileBytes, int startIndex)
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{
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string stopSequence = "_eof";
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int stopIndex = System.Text.Encoding.ASCII.GetString(fileBytes).IndexOf(stopSequence, startIndex);
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if (stopIndex != -1)
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{
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return stopIndex + stopSequence.Length + 0x0D;
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}
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return -1;
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}
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static int FindJpgStart(byte[] fileBytes, int startIndex)
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{
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byte[] jpgStartPattern = { 0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46 };
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for (int i = startIndex; i <= fileBytes.Length - jpgStartPattern.Length; i++)
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{
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if (fileBytes.Skip(i).Take(jpgStartPattern.Length).SequenceEqual(jpgStartPattern))
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{
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return i;
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}
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}
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return -1;
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}
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static int FindJpgEnd(byte[] fileBytes, int startIndex)
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{
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byte[] jpgEndPattern = { 0xFF, 0xD9 };
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for (int i = startIndex; i <= fileBytes.Length - jpgEndPattern.Length; i++)
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{
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if (fileBytes.Skip(i).Take(jpgEndPattern.Length).SequenceEqual(jpgEndPattern))
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{
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return i + jpgEndPattern.Length - 1;
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}
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}
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return -1;
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}
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}

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