Batch attachment of multiple .ttf files to a .mkv - batch-file

Question

Ok, I'm total new at this... Basically I'm using a tool call mkvmerge to attach multiple font files(.ttf) to .mkv files. I have separated the .mkv files into folders together with the respective fonts I would like to attach.
My aim is to create a batch that creates a copy of all the .mkv files with all the added attachments and deposits them in a newly created a folder (i.e Revised) in the parent directory.
Beginning with just a single folder:
mkdir Revised
for %%A in (*.mkv) do "%mkvmerge%" -q -o "Revised\%%A" "%%A" --attachment-mime-type application/x-truetype-font --attach-file "%%~.ttf"
This works if I change the "%%~.ttf" to an actual .tff file name
(i.e
mkdir Revised
for %%A in (*.mkv) do "%mkvmerge%" -q -o "Revised\%%A" "%%A" --attachment-mime-type application/x-truetype-font --attach-file "sans serif.ttf"
and I would end up with newly created Revised folder which contains a .mkv file with the sans serif.tff file attach within the .mkv file itself.
However I would like to add multiple .ttf files without naming them individually. (searching online it seems I need something like "$file" though I dont know how to use it)
Next if I have a parent folder with multiple sub-folders:
mkdir Revised
for /R %%A in (*.mkv) do "%mkvmerge%" -q -o "Revised\%%A" "%%A" --attachment-mime-type application/x-truetype-font --attach-file "%%~.ttf"
This just flat out doesn't work. Not just because of the "%%~.ttf" issue I'm sure.
I know that it might be a bit too ambitious, so if some one could just help solve the first half of my problem, that would be lovely. Thanks a lot in advance.
Ps: If anyone need to understand the mkvmerge specific commands to help out: https://mkvtoolnix.download/doc/mkvmerge.html
Updates: For the first part
mkdir Revised
for %%x in (*.ttf) do (
for %%A in (*.mkv) do "%mkvmerge%" -q -o "Revised\%%A" "%%A" --attachment-mime-type application/x-truetype-font --attach-file "%%x"
)
It seems to work better but I think the script would now add and remove the the .ttf files until the last .ttf file in the folder remained.

Answer 1

Please give this a try. (Remember to set your %mkvmerge% variable to your executable path):
#echo off
set "mkvmerge=C:\Some Path\mkvmerge.exe"
for %%a in (*.ttf) do (
for /f %%i in ('dir /s /b /a-d *.mkv ^| findstr /vi Revised') do (
if not exist "%%~dpiRevised" mkdir "%%~dpi\Revised"
if not exist "%%~dpiRevised\%%~nxi" copy "%%~fi" "%%~dpiRevised"
"%mkvmerge%" -q -o "%%~dpiRevised\%%~ni_rev%%~xi" "%%~dpiRevised\%%~nxi" --attachment-mime-type application/x-truetype-font --attach-file "%%~dpi%%a"
)
)
So to explain what went wrong with your examples:
In the for loop, you take apply from the mkv inside the root folder, and apply a ttf file to it and create the new mkv file with the attached ttf to the Revised directory, then for the next ttf you again copy from the root directory, overwriting the mkv file in the Revised directory with a new one where a new ttf was applied etc.
Instead, we need to first make a copy of the mkv file into the Revised directory then we apply the first ttf file to itself in Revised and then take the mkv with the already attached ttf and apply another ttf to it until all ttf files have been applied to the new mkv inside of Revised The original mkv and all the ttf files will remain in the parent folder.
Note if any of what I explained does not make sense, let me know and I will rephrase.

Answer 2

I have decided to take a stab at this, it is intended to be run from the parent directory holding your directories, (I have assumed that those directories are all on the same level, this is not recursing through nested directories).
Please be aware that I am unable to test this.
#Echo Off
Set "mkvm=%UserProfile%\Downloads\Video Players, Editors, & Downloaders\MKVTool Batch Modifier\mkvmerge.exe"
For /F Delims^=^ EOL^= %%A In ('Dir/B/AD 2^>Nul^|FindStr/IVXC:"Revised"'
) Do If Exist "%%A\*.mkv" (If Exist "%%A\*.ttf" (
If Not Exist "Revised\" MD "Revised" 2>Nul||Exit /B
Call :S1 "%%A"))
GoTo :EOF
:S1
PushD %1 2>Nul||Exit /B
Set "as=--attachment-mime-type application/x-truetype-font --attach-file"
Set "ttfs="
For /F Delims^=^ EOL^= %%A In ('Where .:*.ttf'
) Do Call Set "ttfs=%%ttfs%% %as% "%%~nxA""
For /F Delims^=^ EOL^= %%A In ('Where .:*.mkv'
) Do "%mkvm%" -q -o "%~dp0Revised\%%~nxA" "%%~nxA" %ttfs%
PopD
I think I have also made this in such a way as to allow for more than one .mkv file in a directory, where each will be attached to all of the same .ttf files.

Answer 3

Get-ChildItem *.mkv | ForEach-Object {
$FontFlags = ""
Get-ChildItem -LiteralPath $_.BaseName -Exclude *.xml | ForEach-Object {
$FontFlags += " --add-attachment `"$($_.FullName)`""
}
Write-Host "Running &`"C:\Program Files\MKVToolNix\mkvpropedit.exe`" `"$_`" $FontFlags"
Invoke-Expression "&`"C:\Program Files\MKVToolNix\mkvpropedit.exe`" `"$_`" $FontFlags"
}
Read-Host "Press any key to exit..."
Make a folder with the same names as mkv without extension. Put mkv file, folder , this code in same folder and run it.
I didn't make this code. I asked someone to make this for my personal use.