liba52/resample.c

   1
   2 // a52_resample_init should find the requested converter (from type flags ->
   3 // given number of channels) and set up some function pointers...
   4
   5 // a52_resample() should do the conversion.
   6
   7 #include <inttypes.h>
   8 #include <stdio.h>
   9 #include "a52.h"
  10 #include "mm_accel.h"
  11 #include "../config.h"
  12 #include "mangle.h"
  13
  14 int (* a52_resample) (float * _f, int16_t * s16)=NULL;
  15
  16 #include "resample_c.c"
  17
  18 #ifdef ARCH_X86
  19 #include "resample_mmx.c"
  20 #endif
  21
  22 #ifdef HAVE_ALTIVEC
  23 #include "resample_altivec.c"
  24 #endif
  25
  26 void* a52_resample_init(uint32_t mm_accel,int flags,int chans){
  27 void* tmp;
  28
  29 #ifdef ARCH_X86
  30     if(mm_accel&MM_ACCEL_X86_MMX){
  31         tmp=a52_resample_MMX(flags,chans);
  32         if(tmp){
  33             if(a52_resample==NULL) fprintf(stderr, "Using MMX optimized resampler\n");
  34             a52_resample=tmp;
  35             return tmp;
  36         }
  37     }
  38 #endif
  39 #ifdef HAVE_ALTIVEC
  40     if(mm_accel&MM_ACCEL_PPC_ALTIVEC){
  41       tmp=a52_resample_altivec(flags,chans);
  42       if(tmp){
  43        if(a52_resample==NULL) fprintf(stderr, "Using AltiVec optimized resampler\n");
  44        a52_resample=tmp;
  45        return tmp;
  46       }
  47     }
  48 #endif
  49
  50     tmp=a52_resample_C(flags,chans);
  51     if(tmp){
  52         if(a52_resample==NULL) fprintf(stderr, "No accelerated resampler found\n");
  53         a52_resample=tmp;
  54         return tmp;
  55     }
  56
  57     fprintf(stderr, "Unimplemented resampler for mode 0x%X -> %d channels conversion - Contact MPlayer developers!\n", flags, chans);
  58     return NULL;
  59 }