mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-24 08:12:44 +00:00
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* copyright (C) 2001 Arpad Gereoffy
|
|
*
|
|
* This file is part of a52dec, a free ATSC A-52 stream decoder.
|
|
* See http://liba52.sourceforge.net/ for updates.
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 "a52.h"
|
|
#include "mm_accel.h"
|
|
#include "config.h"
|
|
#include "../../libpostproc/mangle.h"
|
|
|
|
int (* a52_resample) (float * _f, int16_t * s16)=NULL;
|
|
|
|
#include "resample_c.c"
|
|
|
|
#ifdef ARCH_X86_32
|
|
#include "resample_mmx.c"
|
|
#endif
|
|
|
|
void* a52_resample_init(uint32_t mm_accel,int flags,int chans){
|
|
void* tmp;
|
|
|
|
#ifdef ARCH_X86_32
|
|
if(mm_accel&MM_ACCEL_X86_MMX){
|
|
tmp=a52_resample_MMX(flags,chans);
|
|
if(tmp){
|
|
if(a52_resample==NULL) av_log(NULL, AV_LOG_INFO, "Using MMX optimized resampler\n");
|
|
a52_resample=tmp;
|
|
return tmp;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
tmp=a52_resample_C(flags,chans);
|
|
if(tmp){
|
|
if(a52_resample==NULL) av_log(NULL, AV_LOG_INFO, "No accelerated resampler found\n");
|
|
a52_resample=tmp;
|
|
return tmp;
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Unimplemented resampler for mode 0x%X -> %d channels conversion - Contact MPlayer developers!\n", flags, chans);
|
|
return NULL;
|
|
}
|