Use-FFMpeg.ps1
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function Use-FFMpeg { <# .Synopsis Uses ffmpeg directly. .Description Runs ffmpeg directly. .Example Use-FFMpeg -FFMpegArgument '-i', "`"$home\Video\A.mp4`"", "`"$home\Music\A.mp3`"" .Link Use-FFProbe .Link Use-FFPlay #> [CmdletBinding(PositionalBinding=$false)] [OutputType([string])] [Alias('ffmpeg')] param( # Arguments to FFMpeg. [Parameter(ValueFromPipelineByPropertyName,ValueFromRemainingArguments)] [string[]] $FFMpegArgument, # The path to FFMpeg. [string] $FFMpegPath, # If set, will run as a background job. [switch] $AsJob ) process { #region Find FFMpeg $ffMpeg = Get-FFMpeg -ffmpegPath $FFMpegPath if (-not $ffmpeg) {return} #endregion Find FFMpeg #region Handle -AsJob if ($AsJob) { return & $startRoughDraftJob } #endregion Handle -AsJob #region Run FFMpeg Write-Verbose "Invoke FFMpeg with $($ffmpegArgument -join ' ')" $outputLines = [Collections.ArrayList]::new() & $ffmpeg @FFMpegArgument *>&1 | . { begin { $replaceBrackets = '^\[[^\]]+\]\s{0,}' } process { $line = $_ $null = $outputLines.Add($line) $lineIsError = $line -match '^\[[^\]]+\]\sError' $errorMessage = @() if ($lineIsError) { # If the line is an error $errorLines = @( $outputLines[$outputLines.Count - 2] # the previous line should have some context. $line ) # Then create an error message with both lines. $errorMessage = @(foreach ($errorLine in $errorLines) { $errorLine -replace $replaceBrackets }) -join [Environment]::NewLine } # Alternatively, some errors start with 'error', but ones that start with 'error while' # can generally be ignored. elseif ($line -match '^Error' -and $line -notmatch '^Error while') { $errorMessage = @(for ($outLineNumber = $outputLines.Count - 2; $outLineNumber; $outLineNumber--) { if ($outputLines[$outLineNumber] -notmatch '^\[') { break } $outputLines[$outLineNumber] -replace $replaceBrackets }) -join [Environment]::NewLine } # Some other errors start with brackets and "unable" elseif ($line -match '^\[[^\]]+\]\sUnable') { # In this case, the error message is on this line. $errorMessage = $line -replace $replaceBrackets } # If we had an error message if ($errorMessage) { # create an error record and $errorRecord = [Management.Automation.ErrorRecord]::new( [Exception]::new($errorMessage), "FFMpeg.Error", "NotSpecified", $FFMpegArgument ) # then write the error. $psCmdlet.WriteError($errorRecord) } "$line" } } #endregion Run FFMpeg } } |