for f in *.mkv; do ffmpeg -i "$f" -c:v libx264 -preset fast -crf 20 -c:a aac -b:a 160k "$f%.mkv.mp4" done For Windows (PowerShell):
Get-ChildItem *.mkv | ForEach-Object ffmpeg -i $_ -c:v libx264 -crf 20 -c:a aac "$_.BaseName.mp4" party down s01 ffmpeg
ffmpeg -i episode01.mkv -ss 00:10:30 -to 00:15:20 -c:v libx264 -c:a aac henry_accurate.mkv Extract as MP3: for f in *
ffmpeg -i episode01.mkv ffmpeg -i episode02.mkv If formats differ, re-encode first (see Section 6). Method A: Lossless (same codecs, no re-encode) Create join.txt : for f in *.mkv
ffmpeg -i episode01.mkv -i ep01.srt -c copy -c:s mov_text episode01_soft.mp4 ffmpeg -i episode01.mkv -vf scale=1280:720 -c:v libx264 -preset fast -crf 22 -c:a aac party_720p.mp4 9. Create a Single Marathon Video with Chapter Markers First, join episodes (Section 3). Then create chapters.txt :