Leo Singer 56353e24d2 audiofx: Use most common convention for definitions of IIR filter coefficients. ...

Most signal processing texts, including MATLAB, use the following convention for IIR filter coefficients:

a_0 y[n] + a_1 y[n-1] + ... + a_M y[n-M] = b_0 x[n] + b_1 x[n-1] + ... + b[N] x[n-N]

Usually, a_0 is set to 1 because the coefficients can always be rescaled, giving

y[n] = b_0 x[n] + b_1 x[n-1] + ... + b[N] x[n-N] - a_1 y[n-1] - ... - a_M y[n-M]

The convention that was previously used by audiofxbaseiirfilter and derived class had the a and b coefficients swapped, and did not have the minus signs.

This change makes the audiofx plugin use the more common convention described above.

2012-01-11 15:24:00 +01:00

..

.gitignore

tests: make git ignore new unit test binary

2011-12-27 12:06:25 +00:00

aacparse.c

audioparsers: refactor existing unit tests using common helper

2011-04-08 18:07:08 +01:00

ac3parse.c

ac3parse: Add support for IEC 61937 alignment

2011-07-26 10:40:00 +05:30

alphacolor.c

alphacolor: More fixes/cleanup

2012-01-04 13:26:45 +01:00

amrparse.c

audioparsers: refactor existing unit tests using common helper

2011-04-08 18:07:08 +01:00

apev2mux.c

tests: fix metadata not writable warnings with apev2mux and id3v2mux tests

2010-03-11 15:38:19 +00:00

aspectratiocrop.c

tests: aspectratiocrop: Port to 0.11

2011-10-13 15:37:47 -03:00

audioamplify.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audiochebband.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audiocheblimit.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audiodynamic.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audioecho.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audiofirfilter.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

audioiirfilter.c

audiofx: Use most common convention for definitions of IIR filter coefficients.

2012-01-11 15:24:00 +01:00

audioinvert.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

audiopanorama.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

audiowsincband.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

audiowsinclimit.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

autodetect.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

avimux.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

avisubtitle.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

capssetter.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

cmmldec.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

cmmlenc.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

deinterlace.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

deinterleave.c

tests: fix some unit tests

2012-01-03 10:26:48 +01:00

equalizer.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

flacparse.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

flvdemux.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

flvmux.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

gdkpixbufsink.c

tests/check/: Add unit test for gdkpixbufsink element.

2008-04-03 22:59:44 +00:00

icydemux.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

id3demux.c

update for tag API changes

2011-12-01 18:55:45 +01:00

id3v2mux.c

id3v2mux: write beats-per-minute tag using TBPM frame

2010-08-05 00:04:48 +01:00

imagefreeze.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

interleave.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

jpegenc.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

level.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

matroskamux.c

matroska: port to 0.11

2011-11-26 15:01:01 +01:00

matroskaparse.c

tests: add basic unit test for matroskaparse

2011-11-23 01:00:17 +00:00

mpegaudioparse.c

audioparsers: add ac3parse and mpegaudioparse unit test

2011-04-08 18:07:08 +01:00

multifile.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

parser.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

parser.h

audioparsers: add flacparse unit test

2011-04-08 18:07:09 +01:00

qtmux.c

Merge branch 'master' into 0.11

2012-01-10 14:32:32 +01:00

rganalysis.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

rglimiter.c

test: make more unit tests compile

2012-01-03 11:56:25 +01:00

rgvolume.c

Merge branch 'master' into 0.11

2012-01-10 14:32:32 +01:00

rtp-payloading.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

rtpbin_buffer_list.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

rtpbin.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

rtpjitterbuffer.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

shapewipe.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

souphttpsrc.c

Merge branch 'master' into 0.11

2012-01-10 14:32:32 +01:00

spectrum.c

tests: update for gstcheck API change

2011-11-24 21:41:03 +01:00

sunaudio.c

sys/sunaudio/: Actually translate sunaudio mixer track labels instead of just marking the strings as translatable (#3...

2007-03-09 19:44:30 +00:00

udpsink.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

udpsrc.c

udpsrc: add unit test that sends 0-size packet

2011-12-27 11:49:10 +00:00

videocrop.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

videofilter.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00

wavpackdec.c

Add -Wold-style-definition flag

2010-03-21 15:17:46 +01:00

wavpackenc.c

Add -Wmissing-declarations -Wmissing-prototypes warning flags

2010-03-17 18:23:28 +01:00

wavpackparse.c

Add -Wmissing-declarations -Wmissing-prototypes warning flags

2010-03-17 18:23:28 +01:00

y4menc.c

tests: make more tests compile

2012-01-03 14:16:28 +01:00