Snippit of Get-MKVSubTitles

getmkvtubtitles,ps1

function Get-MkvSubtitleASSTracks(
    [Parameter(Mandatory = $true)]
    [object]$MkvObject
) {
    [System.Collections.ArrayList]$results = New-Object System.Collections.ArrayList
    foreach ($track in (Get-MkvTracks -MkvObject $MkvObject -TrackType "*") ) {
        if (($track.codec -like "*AdvancedSub*")){
            $ignored = $results.Add($track)
        }
        else {
            if((Get-TrackCodecID -MkvTrack $track) -like "*ASS*"){
                $ignored = $results.Add($track)
            }
        }
    }
    return $results
}

function Get-MkvSubtitleSRTTracks(
    [Parameter(Mandatory = $true)]
    [object]$MkvObject
) {
    [System.Collections.ArrayList]$results = New-Object System.Collections.ArrayList
    foreach ($track in (Get-MkvTracks -MkvObject $MkvObject -TrackType "*") ) {
        if (($track.codec -like "*SubRip*") -or ($track.codec -like "*SRT*")){
            $ignored = $results.Add($track)
        }
        else {
            if((Get-TrackCodecID -MkvTrack $track) -like "*UTF8*"){
                $ignored = $results.Add($track)
            }
        }
    }
    return $results
}

function Get-MkvSubtitleSSATracks(
    [Parameter(Mandatory = $true)]
    [object]$MkvObject
) {
    [System.Collections.ArrayList]$results = New-Object System.Collections.ArrayList
    foreach ($track in (Get-MkvTracks -MkvObject $MkvObject -TrackType "*") ) {
        if (($track.codec -like "*SubStationAlpha*")){
            $ignored = $results.Add($track)
        }
        else {
            if((Get-TrackCodecID -MkvTrack $track) -like "*SSA*"){
                $ignored = $results.Add($track)
            }
        }
    }
    return $results
}

function Get-MkvSubtitleVobSubTracks(
    [Parameter(Mandatory = $true)]
    [object]$MkvObject
) {
    [System.Collections.ArrayList]$results = New-Object System.Collections.ArrayList
    foreach ($track in (Get-MkvTracks -MkvObject $MkvObject -TrackType "*") ) {
        if (($track.codec -like "*VobSub*")){
            $ignored = $results.Add($track)
        }
        else {
            if((Get-TrackCodecID -MkvTrack $track) -like "*VOBSUB*"){
                $ignored = $results.Add($track)
            }
        }
    }
    return $results
}