File	Date	Author	Commit
viewer	2011-07-14	Sean D'Epagnier	[fc8ef4] minor bug fixes
.gitignore	2011-05-06	Sean D'Epagnier	[44697c] viewer program added
Makefile	2011-05-03	Sean D'Epagnier	[1e2e3a] Added opengl glut viewer program as well as oth...
README	2011-05-06	Sean D'Epagnier	[44697c] viewer program added
dsp.c	2011-07-14	Sean D'Epagnier	[fc8ef4] minor bug fixes
fax.c	2011-05-03	Sean D'Epagnier	[1e2e3a] Added opengl glut viewer program as well as oth...
file.c	2011-05-03	Sean D'Epagnier	[1e2e3a] Added opengl glut viewer program as well as oth...
info.h	2011-05-03	Sean D'Epagnier	[1e2e3a] Added opengl glut viewer program as well as oth...
pgm.h	2011-05-03	Sean D'Epagnier	[1e2e3a] Added opengl glut viewer program as well as oth...
yahfax.c	2011-07-14	Sean D'Epagnier	[fc8ef4] minor bug fixes
yahfax.h	2011-05-06	Sean D'Epagnier	[44697c] viewer program added

Read Me

[DESCRIPTION]
Yet Another HF Fax Program

Source code is based on hamfax by Christof Schmitt.
Qt dependency and user interface is removed, and code is converted from c++ to c for less dependencies, simplicity and speed.

A separate viewer program "yahfaxviewer" can be automatically invoked with the -g option.  It requires opengl and glut libraries.

Key features:
simplicity, efficiency, more robust start/stop and phasing detection

The program converts to/from only uncompressed files.

[EXAMPLES]
arecord -f S16_LE > fax.wav

yahfax < fax.wav | pnmtopng > fax.png

geeqie fax.png

or, to read from sound card directly, and display in viewer:
yahfax /dev/dsp -g

It is also allowed to use /dev/dsp for input or output file.  As a contrived example, we
can create a feedback loop using an audio cable going from soundcard input to output along with
a pipe to complete a loop:

yahfax /dev/dsp | yahfax -s -o /dev/dsp

The resulting image, progressivly blurrier noise (due to infinite feedback)

[AUTHOR]
Sean D'Epagnier