Five 48x48 source frames; unequal delays 100,200,300,100,300 ms, total one second. PNG grid 148x98 with 2px interior gaps. JSON is a custom reference, NOT a Unity importer. Unity Editor playback is not tested. Verify final hold and loop boundary yourself.

Synthetic examples created for ExtractVideoFrames.com. Original example media and illustration data: CC0. FFmpeg, Python, Pillow and ImageMagick are separate tools with their own licenses. Source programs do not delete existing directories; use a new working folder. No private media is included.
