diff options
author | Benny Prijono <bennylp@teluu.com> | 2006-11-23 10:19:46 +0000 |
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committer | Benny Prijono <bennylp@teluu.com> | 2006-11-23 10:19:46 +0000 |
commit | 67d4e56dc8a365871c3dca4f04fcf8b9c9f47ee6 (patch) | |
tree | e30de3c33522d7e91f091ed0f9ac0984c1f9868a /pjmedia/src/pjmedia-codec/speex/filterbank.h | |
parent | 512f41cf91a5d5719696cbf8383832cbdca5a5a2 (diff) |
Updated Speex to their latest SVN (1.2-beta). AEC seems
to work much better now and take less CPU, so I increased
default tail length in PJSUA to 800ms.
git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@823 74dad513-b988-da41-8d7b-12977e46ad98
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/filterbank.h')
-rw-r--r-- | pjmedia/src/pjmedia-codec/speex/filterbank.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/filterbank.h b/pjmedia/src/pjmedia-codec/speex/filterbank.h new file mode 100644 index 00000000..5ded6b93 --- /dev/null +++ b/pjmedia/src/pjmedia-codec/speex/filterbank.h @@ -0,0 +1,66 @@ +/* Copyright (C) 2006 Jean-Marc Valin */ +/** + @file filterbank.h + @brief Converting between psd and filterbank + */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef FILTERBANK_H +#define FILTERBANK_H + +#include "misc.h" + +typedef struct { + int *bank_left; + int *bank_right; + spx_word16_t *filter_left; + spx_word16_t *filter_right; +#ifndef FIXED_POINT + float *scaling; +#endif + int nb_banks; + int len; +} FilterBank; + + +FilterBank *filterbank_new(int banks, spx_word32_t sampling, int len, int type); + +void filterbank_destroy(FilterBank *bank); + +void filterbank_compute_bank32(FilterBank *bank, spx_word32_t *ps, spx_word32_t *mel); + +void filterbank_compute_psd16(FilterBank *bank, spx_word16_t *mel, spx_word16_t *psd); + +#ifndef FIXED_POINT +void filterbank_compute_bank(FilterBank *bank, float *psd, float *mel); +void filterbank_compute_psd(FilterBank *bank, float *mel, float *psd); +#endif + + +#endif |