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Viewing changes to daemon/libs/pjproject-2.1.0/pjmedia/src/pjmedia/resample_speex.c

  • Committer: Package Import Robot
  • Author(s): Mark Purcell
  • Date: 2014-01-28 18:23:36 UTC
  • mfrom: (1.1.11)
  • mto: This revision was merged to the branch mainline in revision 24.
  • Revision ID: package-import@ubuntu.com-20140128182336-3xenud1kbnwmf3mz
http://bugs.debian.org/735846
http://bugs.debian.org/727164
http://bugs.debian.org/718178
http://bugs.debian.org/736583
http://bugs.debian.org/722040
http://bugs.debian.org/736746
* New upstream release 
  - Fixes "New Upstream Release" (Closes: #735846)
  - Fixes "Ringtone does not stop" (Closes: #727164)
  - Fixes "[sflphone-kde] crash on startup" (Closes: #718178)
  - Fixes "sflphone GUI crashes when call is hung up" (Closes: #736583)
* Build-Depends: ensure GnuTLS 2.6
  - libucommon-dev (>= 6.0.7-1.1), libccrtp-dev (>= 2.0.6-3)
  - Fixes "FTBFS Build-Depends libgnutls{26,28}-dev" (Closes: #722040)
* Fix "boost 1.49 is going away" unversioned Build-Depends: (Closes: #736746)
* Add Build-Depends: libsndfile-dev, nepomuk-core-dev

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daemon/libs/pjproject-2.1.0/pjmedia/src/pjmedia/resample_speex.c
 
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/* $Id: resample_speex.c 3553 2011-05-05 06:14:19Z nanang $ */
 
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/* 
 
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 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
 
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 * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
8
 * the Free Software Foundation; either version 2 of the License, or
 
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 * (at your option) any later version.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program; if not, write to the Free Software
 
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 
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 */
 
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#include <pjmedia/resample.h>
 
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#include <pjmedia/errno.h>
 
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#include <pj/assert.h>
 
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#include <pj/log.h>
 
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#include <pj/pool.h>
 
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#if PJMEDIA_RESAMPLE_IMP==PJMEDIA_RESAMPLE_SPEEX
 
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#include <speex/speex_resampler.h>
 
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#define THIS_FILE   "resample_speex.c"
 
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struct pjmedia_resample
 
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{
 
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    SpeexResamplerState *state;
 
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    unsigned             in_samples_per_frame;
 
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    unsigned             out_samples_per_frame;
 
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};
 
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PJ_DEF(pj_status_t) pjmedia_resample_create( pj_pool_t *pool,
 
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                                             pj_bool_t high_quality,
 
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                                             pj_bool_t large_filter,
 
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                                             unsigned channel_count,
 
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                                             unsigned rate_in,
 
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                                             unsigned rate_out,
 
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                                             unsigned samples_per_frame,
 
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                                             pjmedia_resample **p_resample)
 
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{
 
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    pjmedia_resample *resample;
 
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    int quality;
 
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    int err;
 
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    PJ_ASSERT_RETURN(pool && p_resample && rate_in &&
 
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                     rate_out && samples_per_frame, PJ_EINVAL);
 
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    resample = PJ_POOL_ZALLOC_T(pool, pjmedia_resample);
 
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    PJ_ASSERT_RETURN(resample, PJ_ENOMEM);
 
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    if (high_quality) {
 
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        if (large_filter)
 
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            quality = 10;
 
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        else
 
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            quality = 7;
 
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    } else {
 
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        quality = 3;
 
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    }
 
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    resample->in_samples_per_frame = samples_per_frame;
 
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    resample->out_samples_per_frame = rate_out / (rate_in / samples_per_frame);
 
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    resample->state = speex_resampler_init(channel_count,  rate_in, rate_out, 
 
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                                           quality, &err);
 
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    if (resample->state == NULL || err != RESAMPLER_ERR_SUCCESS)
 
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        return PJ_ENOMEM;
 
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    *p_resample = resample;
 
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    PJ_LOG(5,(THIS_FILE, 
 
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              "resample created: quality=%d, ch=%d, in/out rate=%d/%d", 
 
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              quality, channel_count, rate_in, rate_out));
 
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    return PJ_SUCCESS;
 
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}
 
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PJ_DEF(void) pjmedia_resample_run( pjmedia_resample *resample,
 
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                                   const pj_int16_t *input,
 
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                                   pj_int16_t *output )
 
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{
 
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    spx_uint32_t in_length, out_length;
 
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    PJ_ASSERT_ON_FAIL(resample, return);
 
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    in_length = resample->in_samples_per_frame;
 
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    out_length = resample->out_samples_per_frame;
 
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    speex_resampler_process_interleaved_int(resample->state,
 
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                                            (const __int16 *)input, &in_length,
 
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                                            (__int16 *)output, &out_length);
 
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    pj_assert(in_length == resample->in_samples_per_frame);
 
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    pj_assert(out_length == resample->out_samples_per_frame);
 
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}
 
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PJ_DEF(unsigned) pjmedia_resample_get_input_size(pjmedia_resample *resample)
 
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{
 
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    PJ_ASSERT_RETURN(resample != NULL, 0);
 
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    return resample->in_samples_per_frame;
 
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}
 
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PJ_DEF(void) pjmedia_resample_destroy(pjmedia_resample *resample)
 
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{
 
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    PJ_ASSERT_ON_FAIL(resample, return);
 
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    if (resample->state) {
 
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        speex_resampler_destroy(resample->state);
 
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        resample->state = NULL;
 
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    }
 
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}
 
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#else /* PJMEDIA_RESAMPLE_IMP==PJMEDIA_RESAMPLE_SPEEX */
 
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int pjmedia_resample_speex_excluded;
 
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#endif  /* PJMEDIA_RESAMPLE_IMP==PJMEDIA_RESAMPLE_SPEEX */
 
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