ffmpeg -i Young_Sheldon_S02E14.mp4 -itsoffset 0.15 -i Young_Sheldon_S02E14.mp4 \ -map 1:v -map 0:a -c copy \ Young_Sheldon_S02E14_sync_fixed.mp4 (0.15 sec delay correction) Best quality-to-size ratio for this specific episode:
ffmpeg -i Young_Sheldon_S02E14.mkv \ -map 0 -c copy -c:v libx265 -crf 20 -preset slow \ -c:a flac -compression_level 8 \ -movflags +faststart \ "Young Sheldon - S02E14 - David, Goliath, and a Yoo-hoo from the Back.mkv" | Task | FFmpeg Key Parameter | |------|----------------------| | Fast seeking (keyframe) | -ss before -i | | Baseball motion + dialogue encoding | libx265 -crf 22 -preset medium | | Burn-in subtitles | subtitles=file.srt | | Stereo downmix | -ac 2 | | Episode preview grid | fps=1/60,tile=4x4 | young sheldon s02e14 ffmpeg
ffmpeg -i Young_Sheldon_S02E14.mkv -f ffmetadata chapters.txt If audio drifts after re-encode: ffmpeg -i Young_Sheldon_S02E14
ffmpeg -i Young_Sheldon_S02E14.mp4 \ -vf "fps=1/60,scale=160:90,tile=4x4" \ -frames:v 1 \ preview_sheet.jpg Each frame = 1 minute of episode (good for finding Sheldon’s monologue scenes). Many Blu-ray/Web-DL releases include chapters. List them: extracts Missy’s dialogue only (speaker diarization)
Would you like an FFmpeg script that automatically detects the episode’s chapters, extracts Missy’s dialogue only (speaker diarization), or converts the episode for Plex Direct Play?
ffmpeg -i Young_Sheldon_S02E14.mp4 \ -codec: h264 -level 4.0 -crf 23 \ -start_number 0 -hls_time 10 -hls_list_size 0 \ -f hls -hls_segment_filename "segment_%03d.ts" \ young_sheldon_s02e14.m3u8 Generate a 4x4 contact sheet:
ffmpeg -i Young_Sheldon_S02E14.mp4 \ -c:v libx265 -crf 22 -preset medium \ -c:a libopus -b:a 96k \ -movflags +faststart \ Young_Sheldon_S02E14_hevc.mkv Low noise in sitcoms → CRF 22 gives ~50% size reduction without visible loss. 5. Extract specific scene (Missy’s baseball hit → Sheldon’s reaction) # From 00:12:30 to 00:14:15 ffmpeg -ss 00:12:30 -i Young_Sheldon_S02E14.mp4 -t 105 \ -c:v libx264 -crf 18 -preset fast \ -c:a aac -b:a 128k \ missy_home_run_clip.mp4 -ss before -i enables fast seeking (keyframe accuracy okay for this episode’s editing pattern). 6. Burn in English subtitles (for deaf/hard-of-hearing) ffmpeg -i Young_Sheldon_S02E14.mp4 \ -vf "subtitles=Young_Sheldon_S02E14.srt:force_style='FontName=Arial,FontSize=20,PrimaryColour=&H00FFFFFF,OutlineColour=&H00000000,BorderStyle=1'" \ -c:a copy \ Young_Sheldon_S02E14_burned.mp4 Extract existing subtitles first if needed: