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https://github.com/mpv-player/mpv
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dca49663cd
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25512 b3059339-0415-0410-9bf9-f77b7e298cf2
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* resample.c
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* Copyright (C) 2001 Árpád Gereöffy
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*
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* This file is part of a52dec, a free ATSC A-52 stream decoder.
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* See http://liba52.sourceforge.net/ for updates.
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*
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* File added for use with MPlayer and not part of original a52dec.
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*
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* a52dec 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
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* 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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* a52dec 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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// a52_resample_init should find the requested converter (from type flags ->
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// given number of channels) and set up some function pointers...
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// a52_resample() should do the conversion.
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#include <inttypes.h>
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#include <stdio.h>
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#include "a52.h"
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#include "mm_accel.h"
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#include "../config.h"
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#include "mangle.h"
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int (* a52_resample) (float * _f, int16_t * s16)=NULL;
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#include "resample_c.c"
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#if defined(ARCH_X86) || defined(ARCH_X86_64)
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#include "resample_mmx.c"
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#endif
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#ifdef HAVE_ALTIVEC
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#include "resample_altivec.c"
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#endif
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void* a52_resample_init(uint32_t mm_accel,int flags,int chans){
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void* tmp;
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#if defined(ARCH_X86) || defined(ARCH_X86_64)
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if(mm_accel&MM_ACCEL_X86_MMX){
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tmp=a52_resample_MMX(flags,chans);
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if(tmp){
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if(a52_resample==NULL) fprintf(stderr, "Using MMX optimized resampler\n");
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a52_resample=tmp;
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return tmp;
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}
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}
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#endif
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#ifdef HAVE_ALTIVEC
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if(mm_accel&MM_ACCEL_PPC_ALTIVEC){
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tmp=a52_resample_altivec(flags,chans);
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if(tmp){
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if(a52_resample==NULL) fprintf(stderr, "Using AltiVec optimized resampler\n");
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a52_resample=tmp;
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return tmp;
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}
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}
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#endif
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tmp=a52_resample_C(flags,chans);
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if(tmp){
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if(a52_resample==NULL) fprintf(stderr, "No accelerated resampler found\n");
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a52_resample=tmp;
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return tmp;
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}
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fprintf(stderr, "Unimplemented resampler for mode 0x%X -> %d channels conversion - Contact MPlayer developers!\n", flags, chans);
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return NULL;
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}
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