[Asterisk-Users] A software FAX modem

[Ulexus]

This sounds like the fax resolution is incorrect.  Basically, there are only 
two resolutions for faxes, normal and fine.  The only difference in these two 
is the number of lines, or the "Y" dimension.  With "fine" resolution, you 
simply have twice the lines.  Unfortunately, I do not believe there is any 
header information telling which resolution the file is.  The resolution _is_ 
communicated before sending the fax, however, as part of the initial 
communication negotiation.  This basically means that, if it does not yet 
have the facility, the softfax application needs to record what resolution 
the fax is.

On Wednesday, 22 October, 2003 10:49, Steven Critchfield wrote:
> Figured the group would like to hear this. I just faxed a sample
> document from a real fax machine to asterisk semi successfully. I'll
> consider it just semi successfully for now because either I haven't
> found a viewer that puts the image in proper aspect ratio or the storage
> is screwy. I'm thinking it may be the fact that image apps expect the
> file to be in X by X dpi not X by Y. Otherwise it was readable.
>
> Also I was able to take the resulting tiff file and create a sample call
> file that then sent the file back out to the real fax machine
> successfully. The output was nearly identical to the original with the
> exception of being darker. I'll attribute that to cheap fax machine with
> crappy scan head.
>
> Otherwise, Great job.
>
> So far this is my bug list.
>
> 1. Makefile uses a include and library directory from /home/steveu.
>
> 2. Shouldn't make install for the spandsp library put the headers and
> libraries in the proper locations so we don't have to make special
> include links?
>
> Basically if #2 is fixed, then #1 will not need those paths.