ffmpeg -i "The.Boys.S01E01.mkv" -map 0:s:0 "subtitles.sup" Use ebur128 loudness scan and frequency filtering to inspect the subwoofer channel during the deep sea sequence (episode start ~8 min).
1. Initial File Analysis (Probe) Use ffprobe to extract all technical details without modifying the file. the boys s01e01 ffmpeg
ffmpeg -i "The.Boys.S01E01.mkv" -f ffmetadata chapters.txt ffmpeg -i "The.Boys.S01E01.mkv" -i "commentary.aac" -map 0:v -map 0:s -map 1:a -c copy -metadata:s:a:0 language=eng -metadata:s:a:0 title="Commentary" "episode_with_commentary.mkv" 14. Verify Integrity of Download (Check for corruption) ffmpeg -v error -i "The.Boys.S01E01.mkv" -f null - 2> error.log If error.log is empty, the file is healthy. 15. Stream to Chromecast / Network Real-time transcoding (if device doesn’t support codec): ffmpeg -i "The
ffmpeg -f concat -safe 0 -i <(echo "file 'recap.mkv'\nfile 'S01E01.mkv'") -c copy "full_episode_with_recap.mkv" Use dynamic compression (e.g., during the loud supe fights): Stream to Chromecast / Network Real-time transcoding (if
ffmpeg -i "clip.mkv" -vf "subtitles=The.Boys.S01E01.mkv:si=0" -c:a copy "clip_with_subs.mp4" Identify if your 4K version contains HDR metadata:
ffmpeg -i "The.Boys.S01E01.mkv" -map 0:s:m:language:eng "subtitles.srt" For PGS (graphics) subs:
ffmpeg -ss 00:02:17 -i "The.Boys.S01E01.mkv" -frames:v 1 -q:v 2 "butcher_frame.jpg" Merge the “Previously on The Boys” (separate file) with the episode: