修复 手机QQ、PC QQ_NT 提取的原创表情 GIF

mqqemoji.ps1

#Requires -Version 7
Set-StrictMode -Version 3.0

# /sdcard/Android/data/com.tencent.mobileqq/tencent/MobileQQ/.emotionsm

$folder = Get-Item ".\emotionsm"
$outFolder = mkdir -Force ".\outfolder"

Get-ChildItem $folder | ForEach-Object -ThrottleLimit 8 -Parallel {
    $outFolder = $using:outFolder

    function AlternateEvenOddAdjustment ($buffer, $odd = 0) {
        for ($i = 0; $i -lt $buffer.Count; $i++) {
            if ($i % 2 -ne $odd) {
                if ($buffer[$i] % 2 -eq 0) {
                    $buffer[$i] = $buffer[$i] + 1
                } else {
                    $buffer[$i] = $buffer[$i] - 1
                }
            }
        }
    }

    try {
        $file = [System.IO.File]::OpenRead($_.FullName)
        $out = [System.IO.File]::Create($(Join-Path -Path $outFolder -ChildPath "$($_.BaseName).gif"))
        $br = New-Object System.IO.BinaryReader $file

        # Fix Head + Logical Screen Descriptor
        $head = $br.ReadBytes(6 + 7) 
        AlternateEvenOddAdjustment $head
        $out.Write($head)
        
        # Fix Global Color Table
        $globalColorTableSize = $head[10] -band 7
        $globalColorTableLength = [System.Math]::Pow(2, $globalColorTableSize + 1) * 3
        $globalColorTable = $br.ReadBytes($globalColorTableLength)
        AlternateEvenOddAdjustment $globalColorTable 1
        $out.Write($globalColorTable)

        # Fix App Extension 0
        $ext0 = $br.ReadBytes(92)
        if ($ext0[0] -eq 0x20) {
            AlternateEvenOddAdjustment $ext0 1
        }
        $out.Write($ext0)

        # rest of the content
        $file.CopyTo($out)
    } finally {
        ${br}?.Dispose()
        ${file}?.Dispose()
        ${out}?.Dispose()
    }
}

qqntemoji.ps1

#Requires -Version 7
Set-StrictMode -Version 3.0

# Tencent Files\<QQ number>\nt_qq\nt_data\Emoji\marketface

$folder = Get-Item ".\marketface"
$outFolder = mkdir -Force ".\outfolder"

Get-ChildItem $folder | ForEach-Object -ThrottleLimit 8 -Parallel {
    $outFolder = $using:outFolder

    function Invert ($buffer) {
        for ($i = 0; $i -lt $buffer.Count; $i++) {
            $buffer[$i] = 0xFF - $buffer[$i]
        }
    }

    try {
        $file = [System.IO.File]::OpenRead($_.FullName)
        $out = [System.IO.File]::Create($(Join-Path -Path $outFolder -ChildPath "$($_.BaseName).gif"))
        $br = New-Object System.IO.BinaryReader $file

        for ($i = 0; ; $i++) {
            $odd = ($i % 2 -eq 0)
            $len = $odd ? 20: 30

            $data = $br.ReadBytes($len)

            if ($odd) {                
                Invert $data
            }
            $out.Write($data)

            if ($data.Count -lt $len) {
                break
            }
        }
    } finally {
        ${br}?.Dispose()
        ${file}?.Dispose()
        ${out}?.Dispose()
    }
}

或者使用此脚本直接下载原始GIF: https://gist.github.com/TransparentLC/84968e5a8988e6ed9ace68743ab5d342