"Sheldon Cooper, you delete that right now."
"Yes. That’s the tragedy of ffmpeg. When it works perfectly, no one notices. But if I had accidentally mapped the audio to the wrong channel and swapped the red-blue chroma planes, Pastor Jim would have looked like a purple alien from the Andromeda galaxy." young sheldon s06e02 ffmpeg
ffmpeg -i sermon_fixed.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=1,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" -c:a copy sermon_widescreen.mp4 "Sheldon Cooper, you delete that right now
The Aspect Ratio Anomaly
"The yadif filter deinterlaces the video. ‘Yet Another DeInterlacing Filter’—clearly named by someone who lacks imagination but possesses debugging skills. The libx264 codec will ensure efficient compression without sacramental loss." But if I had accidentally mapped the audio
"It’s remuxing the audio stream now. But I’ve realized a deeper problem. The aspect ratio. They filmed in 4:3, but the projector expects 16:9. If I simply scale it, the choir will look short and wide—like a Volkswagen bus full of hymn singers."