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freeswitch/libs/spandsp
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Steve Underwood 0d6c3a1d73 Various minor tweaks to spandsp and the ARM specific code now does fast top bit detection.
2015-04-09 03:30:49 +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 FS-7355: don't do the checks for rpl_realloc and rpl_malloc unless it is gcc compiling as autoconf checks for these don't work quite right on clang 2015-03-09 16:51:35 +00:00
spandsp Fixes for DTC handling in the T.38 gateway 2014-07-28 23:35:06 +08:00
spandsp-sim Various little memory leak possibilities in spandsp sorts, and the spandsp 2014-06-14 19:49:05 +08:00
src Various minor tweaks to spandsp and the ARM specific code now does fast top bit detection. 2015-04-09 03:30:49 +08:00
test-data Reworked some of the definition names and values in preparation for 2013-07-24 11:58:36 +08:00
tests More fixes for Coverity issues 2014-07-22 10:51:42 +08:00
.gitignore .gitignore 2014-01-29 17:56:51 -05:00
.update bump 2014-07-22 07:26:04 -05:00
AUTHORS inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
autogen.sh Fixed V.22bis fixed point builds 2012-08-05 18:39:41 +08:00
ChangeLog inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
configure.ac FS-7355: don't do the checks for rpl_realloc and rpl_malloc unless it is gcc compiling as autoconf checks for these don't work quite right on clang 2015-03-09 16:51:35 +00:00
configure.gnu fix calling of sub configure.gnu files during --srcdir build (FSBUILD-211) 2009-11-24 23:04:21 +00:00
COPYING inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
DueDiligence inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
Makefile.am Tweaks to spandsp configuration 2013-09-01 00:36:48 +08:00
NEWS inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
README Allow writing of T.85 format TIFF files 2013-04-13 01:46:14 +08:00
README.testdata inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz 2008-09-03 19:02:00 +00:00
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 Various small cleanups in spandsp 2014-05-07 13:11:53 +08:00
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 Various small cleanups in spandsp 2014-05-07 13:11:53 +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>