Re: [AVT] H264 Frame rate

[Randell Jesup <rjesup at wgate.com>]

"Even, Roni" <roni.even at polycom.co.il> writes:
>Look at max-mbps, max-fs attributes. Using the maximum macro blocks per
>second and maximum frame size you can calculate the frame rate

Not the actual frame rate, but the maximum possible frame rate at the
maximum frame size.  A receiver may support a higher frame rate at a lower
frame size, and it may be proportional to max-mbps/actual-frame-size, but
nothing directly tells you the frame rate that can be displayed.

I.e., with an implementation that supports 30fps @CIF, in theory it may
support 120fps @ QCIF, but there's no guarantee it will be able to display
120fps.  Also, there's undoubtably per-frame overhead, so max-mbps is only
a rough approximation of the decoders capabilities.

-- 
Randell Jesup, Worldgate (developers of the Ojo videophone), ex-Amiga OS team
rjesup at wgate.com
"The fetters imposed on liberty at home have ever been forged out of the weapons
provided for defence against real, pretended, or imaginary dangers from abroad."
		- James Madison, 4th US president (1751-1836)


_______________________________________________
Audio/Video Transport Working Group
avt at ietf.org
https://www1.ietf.org/mailman/listinfo/avt