Re: [PATCH RFCv10 00/15] DVB QoS statistics API

[Luca Olivetti <luca@ventoso.org>]

Al 16/01/2013 5:26, En/na Manu Abraham ha escrit:

> The simplest and easiest way to achieve commonality between the various
> demodulators is to use the existing API and scale whatever documented
> demodulators to that scacle, to best possible way, rather than adding more
> ambiguity and breakage.

Note that an older version of the linux dvb api documentation clearly 
specified the scale to use, i.e. see

http://linuxtv.org/downloads/legacy/old/linux_dvb_api-20020304.pdf

"The bit error rate, as a multiple of 10E-9 , is stored into
*ber. Example: a value of 2500 corresponds to a bit error rate
of 2.5 * 10E-6 or 1 error in 400000 bits."

"The signal-to-noise ratio, as a multiple of 10E-6 dB, is
stored into *snr. Example: a value of 12,300,000 corresponds to a 
signal-to-noise ratio of 12.3 dB."

"The signal strength value, as a multiple of 10E-6 dBm, is
stored into *strength. Example: a value of -12,500,000 corresponds to a 
signalstrength value of -12.5 dBm."

but for some reason later revisions of the api don't include the scale

Bye
-- 
Luca