A 4 min 1080p30fps video taken with my phone camera is 518MB, While a 12 min 1080p30fps video ripped from youtube is 341MB, both are using mp4 h.264 as codec and the youtube one isnt of lower quality, so why this big difference?
A 4 min 1080p30fps video taken with my phone camera is 518MB, While a 12 min 1080p30fps video ripped from youtube is 341MB, both are using mp4 h.264 as codec and the youtube one isnt of lower quality, so why this big difference?
Because they aren’t the same quality? Lossy compression is lossy
https://m.youtube.com/watch?v=r6Rp-uo6HmI
https://m.youtube.com/watch?v=h9j89L8eQQk