/* * resample.c * Copyright (C) 2001 Árpád Gereöffy * * This file is part of a52dec, a free ATSC A-52 stream decoder. * See http://liba52.sourceforge.net/ for updates. * * File added for use with MPlayer and not part of original a52dec. * * a52dec is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * a52dec 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ // a52_resample_init should find the requested converter (from type flags -> // given number of channels) and set up some function pointers... // a52_resample() should do the conversion. #include #include #include "a52.h" #include "mm_accel.h" #include "config.h" #include "mangle.h" int (* a52_resample) (float * _f, int16_t * s16)=NULL; #include "resample_c.c" #if ARCH_X86 || ARCH_X86_64 #include "resample_mmx.c" #endif #if HAVE_ALTIVEC #include "resample_altivec.c" #endif void* a52_resample_init(uint32_t mm_accel,int flags,int chans){ void* tmp; #if ARCH_X86 || ARCH_X86_64 if(mm_accel&MM_ACCEL_X86_MMX){ tmp=a52_resample_MMX(flags,chans); if(tmp){ if(a52_resample==NULL) fprintf(stderr, "Using MMX optimized resampler\n"); a52_resample=tmp; return tmp; } } #endif #if HAVE_ALTIVEC if(mm_accel&MM_ACCEL_PPC_ALTIVEC){ tmp=a52_resample_altivec(flags,chans); if(tmp){ if(a52_resample==NULL) fprintf(stderr, "Using AltiVec optimized resampler\n"); a52_resample=tmp; return tmp; } } #endif tmp=a52_resample_C(flags,chans); if(tmp){ if(a52_resample==NULL) fprintf(stderr, "No accelerated resampler found\n"); a52_resample=tmp; return tmp; } fprintf(stderr, "Unimplemented resampler for mode 0x%X -> %d channels conversion - Contact MPlayer developers!\n", flags, chans); return NULL; }