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Mon Dec 1 15:39:35 PST 2014
all. (Again, except intra frame case)
Assume YUV420 format, then 12 bits/ pixel
720p : 41,472,000 bytes = 331776000 bits
1280p : 93,312,000 bytes = 746496000 bits
bpp compression ratio Mbps/720p Mbps/1080p
0.01 1/1200 0.27 Mbps (270Kbps) 0.7 Mbps (720 Kbps)
0.05 1/240 1.35 Mbps 3.6 Mbps
0.1 1/120 2.7 Mbps 7.2 Mbps
0.2 1/60 5.4 Mbps 14.5 Mbps
0.4 1/30 10.8 Mbps 29.1 Mbps
<====== WE DON'T CARE THIS!
1.0 1/12 27 Mbps 72.9 Mbps
<====== WE DON'T CARE THIS!
I believe 0.05 bpp ~ 0.2 bpp will be our forever target for 720p and 1080p
video delivery on web.
Also, if possible I hope we use 'Mbps' for x-axis (bit rate) instead of bpp.
Thanks!
Yushin
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