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 :
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): party down s01 ffmpeg
ffmpeg -i party_down_s01_full.mkv -i chapters.txt -map_metadata 1 -c copy party_down_chapters.mkv Higher compression, same quality: ffmpeg -i episode01
Use a metadata file split.txt :