Skip to content
Snippets Groups Projects
resample_dsp.c 2.37 KiB
Newer Older
  • Learn to ignore specific revisions
  • /*
     * audio resampling
     * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
     *
     * This file is part of FFmpeg.
     *
     * FFmpeg is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     *
     * FFmpeg is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with FFmpeg; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     */
    
    /**
     * @file
     * audio resampling
     * @author Michael Niedermayer <michaelni@gmx.at>
     */
    
    #include "resample.h"
    
    #define TEMPLATE_RESAMPLE_S16
    #include "resample_template.c"
    #undef TEMPLATE_RESAMPLE_S16
    
    #define TEMPLATE_RESAMPLE_S32
    #include "resample_template.c"
    #undef TEMPLATE_RESAMPLE_S32
    
    #define TEMPLATE_RESAMPLE_FLT
    #include "resample_template.c"
    #undef TEMPLATE_RESAMPLE_FLT
    
    #define TEMPLATE_RESAMPLE_DBL
    #include "resample_template.c"
    #undef TEMPLATE_RESAMPLE_DBL
    
    void swresample_dsp_init(ResampleContext *c)
    {
    #define FNIDX(fmt) (AV_SAMPLE_FMT_##fmt - AV_SAMPLE_FMT_S16P)
        c->dsp.resample_one[FNIDX(S16P)] = (resample_one_fn) resample_one_int16;
        c->dsp.resample_one[FNIDX(S32P)] = (resample_one_fn) resample_one_int32;
        c->dsp.resample_one[FNIDX(FLTP)] = (resample_one_fn) resample_one_float;
        c->dsp.resample_one[FNIDX(DBLP)] = (resample_one_fn) resample_one_double;
    
    
        c->dsp.resample_common[FNIDX(S16P)] = (resample_fn) resample_common_int16;
        c->dsp.resample_common[FNIDX(S32P)] = (resample_fn) resample_common_int32;
        c->dsp.resample_common[FNIDX(FLTP)] = (resample_fn) resample_common_float;
        c->dsp.resample_common[FNIDX(DBLP)] = (resample_fn) resample_common_double;
    
        c->dsp.resample_linear[FNIDX(S16P)] = (resample_fn) resample_linear_int16;
        c->dsp.resample_linear[FNIDX(S32P)] = (resample_fn) resample_linear_int32;
        c->dsp.resample_linear[FNIDX(FLTP)] = (resample_fn) resample_linear_float;
        c->dsp.resample_linear[FNIDX(DBLP)] = (resample_fn) resample_linear_double;
    
    
        if (ARCH_X86) swresample_dsp_x86_init(c);
    }