Original native output inspection ffprobe -v error -show_entries stream=codec_name,width,height,r_frame_rate,nb_frames -show_entries format=duration -of json runway45-paper-boat-original.mp4 ffmpeg -v error -i runway45-paper-boat-original.mp4 -f null - ffmpeg -i runway45-paper-boat-original.mp4 -vf 'scale=160:90,tile=11x11' -frames:v 1 runway45-paper-all-frames.png This exact clip contains 121 frames. The 11 by 11 sheet places every frame left to right and top to bottom. Thumbnail inspection is not full-resolution review of every frame or real-time playback. The file has no audio stream. Original native MP4 is unchanged.