Re: Philips/NXP channel decoders

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Hello Steven,

> I can test your TDA10048 patches and add sign-off for merge. Looking
> at the list it appears that you have a few nice cleanups. I'll draw
> all of these together this weekend and run some tests.

Thanks a lot.
By the way, I found the read_ber function not fully defined. I guess this
subject has already been addressed on this list but cannot pinpoint where
in the archives. Did I miss something ?

First, *ber is an unsigned integer type, then the bit-error-rate (<=1) has
obviously to be made higher than 1. I have decided to multiply the actual
ber into 1e8 for two reasons:
- 1e-8 offers a good precision and is compatible with what can give the
TDA10046/TDA10048 for the VBER
- the theoretical max value (1 -> 1e8) fits into the u32 type

Naturally, this factor of 1e8 should be defined to be homogeneous for all
channel decoders as the read_ber function is exposed.

Second, the returned BER is the channel bit-error-rate which is the BER
estimation before the Viterbi decoder (for DVB-T). Why this choice ?

Thanks in advance for clarifying.

-- 
Guillaume

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