ffmpegを使用して動画を切り分ける(まとめ動画作成用)

movcuts.ps1

## Cut and output video files.
## $range Specify the range to output. Specify as "Start:Length".
## $source The name of the file to read. This parameter is required.
## $outfile The name of the file to output. When not specified, it is output to the desktop folder with the file name "outfile.mp4".
## ex. movcut "30:10" [filename]
function movcut (
    [Parameter(mandatory=$true)][ValidatePattern('^[\d\.]+:[\d\.]+$')][String] $range,
    [Parameter(mandatory=$true)] $source,
    [Parameter(mandatory=$false)] $outfile=""
) {
  if($outfile -eq ""){ $outfile = [Environment]::GetFolderPath("Desktop") + "\outfile.mp4" }
  $n = $range -Split ":"
  ffmpeg -ss $($n[0]) -i ""${source}"" -t $($n[1]) ""${outfile}""
}

## Output multiple video files by specifying a partial part of a video file.
## $ranges Specify the range to output. Specify it as Start:Length in the array.
## $source The name of the file to read. This parameter is required.
## $outdir The name of the folder to output. If not specified, it will be output to the desktop folder.
## ex. movcuts 20:10,40:10,50:10 -source [filename]
function movcuts (
    [Parameter(mandatory=$true)][String[]] $ranges,
    [Parameter(mandatory=$true)] $source,
    [Parameter(mandatory=$false)] $outdir=""
) {
  if($outdir -eq ""){ $outdir = [Environment]::GetFolderPath("Desktop") }
  $i = 1
  foreach($range in $ranges){
    movcut -range $range -source $source -outfile "${outdir}\${i}.mp4"
    $i++;
  }
} 

ffmpegへ指定する秒数に小数点を指定できるように変更