225 articles about ffmpeg.
ffmpeg cropdetect finds black bars on one file fine, then breaks in a batch. Sample past the intro, take the last crop line, round to even, crop per file.
Instagram error 2207052 means Meta's transcoder rejected your video's format, not your API code. Map every cause to an ffprobe check and one FFmpeg fix.
The Whisper 25MB limit is a byte cap, not a time cap. Re-encode first, split only when you must, and re-offset every timestamp so your SRT still lines up.
FFmpeg has no auto reframe video vertical mode. Four crop strategies that ship, from a fixed offset to detection-driven tracking with smoothing and deadbands.
Convert SRT to VTT without losing cue positioning: what FFmpeg's ASS intermediate silently drops, how to go back to SRT, and how to shift cues after a trim.
The Webflow video size limit is 10 MB per upload and 30 MB for background video, on every plan. Target-size math and the FFmpeg commands that fit the cap.
The TikTok safe zone is roughly 108 px top and 320 px bottom on 1080x1920. Convert them into FFmpeg subtitles MarginV and drawtext y= values that scale.
FFmpeg can read an S3 presigned URL directly over HTTP range requests. The ffmpeg s3 presigned url flags, the HEAD 403, moov placement, and PUT output.
An AI dubbing workflow returns a translated track longer than the video. Measure both with ffprobe, fix the drift with atempo or apad, then re-mux cleanly.
FFmpeg audio ducking with sidechaincompress: the working filtergraph, the input order and format rules that break it, and the same mix as one API call.