On Sat, 2010-04-10 at 08:48 +0200, David Härdeman wrote:
> On Fri, Apr 09, 2010 at 11:00:41AM -0300, Mauro Carvalho Chehab wrote:
> > struct {
> > unsigned mark : 1;
> > unsigned duration :31;
> > }
> >
> > There's no memory spend at all: it will use just one unsigned int and it is
> > clearly indicated what's mark and what's duration.
>
> If all three of you agree on this approch, I'll write a patch to convert
> ir-core to use it instead.
I'm OK with it.
I haven't been paying close attention,so I must ask: What will the units
of duration be?
a. If we use nanoseconds the max duration is 2.147 seconds.
If passing pulse measurments out to LIRC, there are cases where irrecord
and lircd want the duration of the long silence between the
transmissions from the remote. Do any remotes have silence periods
longer than 2.1 seconds?
b. If we use microseconds, the max duration is 214.7 seconds or 3.6
minutes. That's too high to be useful.
c. Something in between, like 1/8 (or 1/2, 1/4, or 1/10) of a
microsecond? 1/8 gives a max duration of 26.8 seconds and a little
extra precision.
Regards,
Andy
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