ffmpeg -i input.mkv -map 0:s:0 subs.sup ffmpeg -ss 00:15:00 -i input.mkv -t 10 -c copy clip.mkv 5. Fix common issues Audio out of sync Manually delay audio by 0.5 sec:
ffmpeg -i input.mkv -itsoffset 0.5 -i input.mkv -map 1:v -map 0:a -c copy fixed.mkv ffmpeg -i corrupted.mkv -c:v libx264 -crf 18 -c:a copy -vf "setpts=PTS+0.1/TB" fixed.mkv Add black padding to letterboxed file (2.35:1 → 16:9) ffmpeg -i input.mkv -vf "pad=1920:1080:(ow-iw)/2:(oh-ih)/2:black" -c:a copy output.mkv 6. Batch processing for entire season Process all episodes preserving metadata:
ffprobe -v quiet -print_format json -show_format -show_streams Snowpiercer.S04E06.mkv Or a quick human-readable version:
This assumes you have the episode file (e.g., Snowpiercer.S04E06.mkv or .mp4 ). Understand what you’re working with:
Here’s a for using ffmpeg to process Snowpiercer S04E06 (e.g., for transcoding, remuxing, extracting audio/subtitles, or fixing playback issues).