Re: [hylafax-users] Fax received time stamp

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Yidnek Mitiku wrote:

> I see some difference in time stamp of a received fax.
> I received fax000011957.tif and the system log shows:
>
> May  4 10:22:17 emessenger FaxGetty[4061]: RECV FAX (000012119): 
> recvq/fax000011957.tif from <UNSPECIFIED>, route to <unspecified>, 91 pages 
> in 51:28
> May  4 10:22:18 emessenger FaxGetty[4061]: RECV FAX: bin/faxrcvd 
> "recvq/fax000011957.tif" "ttyQ1a1" "000012119" "" "" ""
>
>
> But faxinfo shows:
>
> [yidnek@emessenger yidnek]# faxinfo fax000011957.tif
> fax000011957.tif:
>    Sender: <UNSPECIFIED>
>     Pages: 91
>   Quality: Normal
>      Page: North American Letter
>  Received: 2005:05:04 09:30:58
> TimeToRecv: 48:41
> SignalRate: 14400 bit/s
> DataFormat: 2-D MR
>
>
> The system log shows that it took 51:28 whereas faxinfo shows 48:41 to receive 
> a 91 page fax. What makes the two different?
>  

The longer time (the one noted in the syslog) is more accurate.

The difference is that faxinfo shows the summation of all of the "time 
to receives" for each page, and that pretty much *just* involves Phase 
C, not Phase B or half of Phase D.  If you add up a Phase B and 91 
halves of Phase D's you'll come up with 167 seconds.

The "time to receive" as calculated is a rather useless number for 
anyone... unless you're trying to determine whether the specified 
baudrate is the actual data rate.  The first page should contain the 
time used in Phase B, and all successive pages *should* contain the time 
used in the preceding Phase D.  Because the TIFF file is written to 
before Phase D is entirely complete there still will be a discrepancy of 
maybe 1 second or two, but that's much better, I think.

Look and comment on the following bug report for a resolution:

 http://bugs.hylafax.org/bugzilla/show_bug.cgi?id=651

Lee.


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