0077login:Penguin
2018/08/15(水) 12:24:38.48ID:jGXzv5scThe raw h264 stream has no information on its frame rate. MP4Box assumes a default of 25 fps if not specified. You need to specify the correct one with i.e.
https://www.raspberrypi.org/forums/viewtopic.php?t=87053