I did some investigations on the quality of the youtube recode:
The results spoil A BIG HOAX about 4k!
If you compare the 1080p screen resolution, it makes up less than 22% of the 4k resolution used in this youtube video, but 4k is supposed to get along with 50% of the reccomended bitrate for 1080p! While being 5 times as big? For serious, youtube???
Bitrate times factor 10 for an adequate 4k quality, making 100 instead of 10.3mbit!
Some details from the video I uploaded vs the 4k youtube recode. (I downloaded the 4k youtube video and analyzed it with mediainfo and extracted snapshots with after effects)
Uploaded video encoding:
bitrate: 250.000kbit (over 800 mb of maximum image quality for less than 40 seconds of 4k-'4crap' xD)
format: h.264 mainconcept
resolution: 4096x2304 (16:9)
fps: 24
audio: 320kbit AAC
Extracted video snapshot (1276x798 pixles, 330kb jpg):
Youtube recode:
bitrate: 10.300kbit
format: h.264 avc
resolution: 4096x2304 (16:9)
fps: 24
audio: 124kbit AAC
Extracted video snapshot (1276x798 pixles, 139kb jpg):
Here are some bitrate / resolution specifications (compare to wikipedia) that make clear why youtube 4k looks like crap:
10 Mbit/s video bitrate - This video on Youtube (4096x2304)
9.8 Mbit/s max video bitrate -- DVD (720 × 576)
8 to 15 Mbit/s typical video bitrate -- HDTV (1920x1080)
40 Mbit/s max video bitrate -- Blu-ray Disc (1920x1080)
...Youtube RIP for gaming videos