freeswitch

History

Steve Underwood 7d6b0e48b7 Added an XML script to the FAX tests which will provoke the crashing issue seen recently in spandsp's FAX engine. The next step is to fix the actual crash.		2013-12-05 13:34:25 +08:00
..
config	add to make sure config dir is there for AC_CONFIG_AUX_DIR	2012-07-02 17:46:21 -04:00
debian	update to snapshot spandsp-20090421	2009-04-20 18:33:33 +00:00
doc	Improvements to image translation	2012-08-14 22:32:30 +08:00
m4	Fixed NEON detection and added AVX2 detection to spandsp	2013-06-20 23:53:53 +08:00
spandsp	Added an XML script to the FAX tests which will provoke the crashing	2013-12-05 13:34:25 +08:00
spandsp-sim	A cleanup of FAX image size/resolution matching accuracy. Squashing of bi-level	2013-08-06 02:38:06 +08:00
src	FS-6010 --resolve	2013-11-29 22:16:49 -06:00
test-data	Reworked some of the definition names and values in preparation for	2013-07-24 11:58:36 +08:00
tests	Update some of the MSVC files for spandsp	2013-10-20 20:55:23 +08:00
.gitignore	FS-5206: --resolve add .gitignore	2013-03-21 16:54:55 -04:00
.update	force rebuild	2011-12-06 17:56:11 -06:00
AUTHORS
autogen.sh	Fixed V.22bis fixed point builds	2012-08-05 18:39:41 +08:00
ChangeLog
configure.ac	Adjusted the test for -Wunused-but-set-variable in spandsp, so it gets the	2013-11-01 10:32:32 +08:00
configure.gnu	fix calling of sub configure.gnu files during --srcdir build (FSBUILD-211)	2009-11-24 23:04:21 +00:00
COPYING
DueDiligence
INSTALL	A cleanup of FAX image size/resolution matching accuracy. Squashing of bi-level	2013-08-06 02:38:06 +08:00
Makefile.am	Tweaks to spandsp configuration	2013-09-01 00:36:48 +08:00
NEWS
README	Allow writing of T.85 format TIFF files	2013-04-13 01:46:14 +08:00
README.testdata
spandsp.pc.in	Various little tweaks to spandsp to stop warnings with newer compilers	2012-07-02 21:31:04 +08:00
spandsp.spec	Tweaks to spandsp configuration	2013-09-01 00:36:48 +08:00
spandsp.spec.in	Various little tweaks to spandsp to stop warnings with newer compilers	2012-07-02 21:31:04 +08:00
unpack_g722_data.sh	Moved spandsp to a more recent version. A huge number of little changes occur here, as recently spandsp	2010-07-25 03:29:44 +08:00
unpack_g726_data.sh	Moved spandsp to a more recent version. A huge number of little changes occur here, as recently spandsp	2010-07-25 03:29:44 +08:00
unpack_gsm0610_data.sh	FS-4751 I am leaving out the one for devel-bootstrap.sh because I am not sure it should be /usr/pkg/bin/bash	2012-10-23 12:23:19 -04:00
unpack_v56ter_data.sh	Moved spandsp to a more recent version. A huge number of little changes occur here, as recently spandsp	2010-07-25 03:29:44 +08:00
wrapper.xsl	Numerous little changes to spandsp that haven't been pushed to Freeswitch for a	2011-07-02 14:45:27 +08:00
yum-prepare.sh	Tweaks to spandsp configuration	2013-09-01 00:36:48 +08:00

README

spandsp 0.0.6 - A DSP library for telephony
-------------------------------------------

SpanDSP is a library of DSP functions for telephony, in the 8000 sample per
second world of E1s, T1s, and higher order PCM channels. It contains low level
functions, such as basic filters. It also contains higher level functions, such
as cadenced supervisory tone detection, and a complete software FAX machine.
The software has been designed to avoid intellectual property issues, using
mature techniques where all relevant patents have expired. See the file
DueDiligence for important information about these intellectual property issues.

The library is licenced under the LGPL 2.1 licence. The test suite, and some support
programs are licenced under the GPL 2 licence. The full text of these licences can
be found in the file COPYING.

Dependencies
------------

spandsp depends on various other packages for various tasks. Most of these
dependencies relate to building the test suite.

libtiff (and libtiff-devel on most Linux distributions) is required to
build the spandsp library.

libaudiofile (and libaudiofile-devel) is required to build the test suite
fftw (and fftw-devel) is required to build the test suite. Version 2 or 3 of
FFTW may be used. Spandsp adapts to the differences between them.

fltk (and fltk-devel), Fl_Cartesian and Fl_Audio_Meter are required to build
the test suite with GUI interfaces for some of the tests. The tests will build
without these packages, but the GUI features will not be available.
Fl_Cartesian and Fl_Audio_Meter can be downloaded from
http://www.soft-switch.org/downloads.

Steve Underwood <steveu@coppice.org>