PowerShell FFMPEG command to convert all BMW driver recorder dashcam videos to a known container format

convert_bmw_driver_recorder_videos_to_mp4.ps1

# converts all ".ts" MPEGTS videos in current directory and its subdirectories to .MP4 container format
# it doesn't re-encode the video, uses the original, so the file size remains the same and there is
# absolutely no quality loss.

# if you want to compress your videos (i don't recommend it since that might affect quality) remove the "-c copy" 
# parameter and add yours if needed.

dir *.ts -r | % { ffmpeg -i $_.FullName -y -c copy $([System.IO.Path]::ChangeExtension($_.FullName, '.mp4')) }

# high quality, possibly visually not lossy, but still lossy version:

# dir *.ts -r | % { ffmpeg -i $_.FullName -y -c:v libx264 -crf 18 -preset slow $([System.IO.Path]::ChangeExtension($_.FullName, '.mp4')) }