fft_*() renamed into ff_fft_*() patch by (Gildas Bazin <gbazin at altern dot org>)

Originally committed as revision 2882 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/dsputil.h

@@ -508,17 +508,17 @@ typedef struct FFTContext {
     void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
 } FFTContext;
 
-int fft_init(FFTContext *s, int nbits, int inverse);
-void fft_permute(FFTContext *s, FFTComplex *z);
-void fft_calc_c(FFTContext *s, FFTComplex *z);
-void fft_calc_sse(FFTContext *s, FFTComplex *z);
-void fft_calc_altivec(FFTContext *s, FFTComplex *z);
+int ff_fft_init(FFTContext *s, int nbits, int inverse);
+void ff_fft_permute(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
 
-static inline void fft_calc(FFTContext *s, FFTComplex *z)
+static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
 {
     s->fft_calc(s, z);
 }
-void fft_end(FFTContext *s);
+void ff_fft_end(FFTContext *s);
 
 /* MDCT computation */
 

libavcodec/fft-test.c

@@ -198,7 +198,7 @@ int main(int argc, char **argv)
             printf("IFFT");
         else
             printf("FFT");
-        fft_init(s, fft_nbits, do_inverse);
+        ff_fft_init(s, fft_nbits, do_inverse);
         fft_ref_init(fft_nbits, do_inverse);
     }
     printf(" %d test\n", fft_size);
@@ -227,8 +227,8 @@ int main(int argc, char **argv)
         }
     } else {
         memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
-        fft_permute(s, tab);
-        fft_calc(s, tab);
+        ff_fft_permute(s, tab);
+        ff_fft_calc(s, tab);
         
         fft_ref(tab_ref, tab1, fft_nbits);
         check_diff((float *)tab_ref, (float *)tab, fft_size * 2);
@@ -254,7 +254,7 @@ int main(int argc, char **argv)
                     }
                 } else {
                     memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
-                    fft_calc(s, tab);
+                    ff_fft_calc(s, tab);
                 }
             }
             duration = gettime() - time_start;
@@ -271,7 +271,7 @@ int main(int argc, char **argv)
     if (do_mdct) {
         ff_mdct_end(m);
     } else {
-        fft_end(s);
+        ff_fft_end(s);
     }
     return 0;
 }

libavcodec/fft.c

@@ -28,7 +28,7 @@
  * The size of the FFT is 2^nbits. If inverse is TRUE, inverse FFT is
  * done 
  */
-int fft_init(FFTContext *s, int nbits, int inverse)
+int ff_fft_init(FFTContext *s, int nbits, int inverse)
 {
     int i, j, m, n;
     float alpha, c1, s1, s2;
@@ -53,7 +53,7 @@ int fft_init(FFTContext *s, int nbits, int inverse)
         s->exptab[i].re = c1;
         s->exptab[i].im = s1;
     }
-    s->fft_calc = fft_calc_c;
+    s->fft_calc = ff_fft_calc_c;
     s->exptab1 = NULL;
 
     /* compute constant table for HAVE_SSE version */
@@ -94,9 +94,9 @@ int fft_init(FFTContext *s, int nbits, int inverse)
             } while (nblocks != 0);
             av_freep(&s->exptab);
 #if defined(HAVE_MMX)
-            s->fft_calc = fft_calc_sse;
+            s->fft_calc = ff_fft_calc_sse;
 #else
-            s->fft_calc = fft_calc_altivec;
+            s->fft_calc = ff_fft_calc_altivec;
 #endif
         }
     }
@@ -142,11 +142,11 @@ int fft_init(FFTContext *s, int nbits, int inverse)
 }
 
 /**
- * Do a complex FFT with the parameters defined in fft_init(). The
+ * Do a complex FFT with the parameters defined in ff_fft_init(). The
  * input data must be permuted before with s->revtab table. No
  * 1.0/sqrt(n) normalization is done.  
  */
-void fft_calc_c(FFTContext *s, FFTComplex *z)
+void ff_fft_calc_c(FFTContext *s, FFTComplex *z)
 {
     int ln = s->nbits;
     int	j, np, np2;
@@ -221,9 +221,9 @@ void fft_calc_c(FFTContext *s, FFTComplex *z)
 }
 
 /**
- * Do the permutation needed BEFORE calling fft_calc()
+ * Do the permutation needed BEFORE calling ff_fft_calc()
  */
-void fft_permute(FFTContext *s, FFTComplex *z)
+void ff_fft_permute(FFTContext *s, FFTComplex *z)
 {
     int j, k, np;
     FFTComplex tmp;
@@ -241,7 +241,7 @@ void fft_permute(FFTContext *s, FFTComplex *z)
     }
 }
 
-void fft_end(FFTContext *s)
+void ff_fft_end(FFTContext *s)
 {
     av_freep(&s->revtab);
     av_freep(&s->exptab);

libavcodec/i386/fft_sse.c

@@ -42,7 +42,7 @@ static void print_v4sf(const char *str, __m128 a)
 #endif
 
 /* XXX: handle reverse case */
-void fft_calc_sse(FFTContext *s, FFTComplex *z)
+void ff_fft_calc_sse(FFTContext *s, FFTComplex *z)
 {
     int ln = s->nbits;
     int	j, np, np2;

libavcodec/mdct.c

@@ -48,7 +48,7 @@ int ff_mdct_init(MDCTContext *s, int nbits, int inverse)
         s->tcos[i] = -cos(alpha);
         s->tsin[i] = -sin(alpha);
     }
-    if (fft_init(&s->fft, s->nbits - 2, inverse) < 0)
+    if (ff_fft_init(&s->fft, s->nbits - 2, inverse) < 0)
         goto fail;
     return 0;
  fail:
@@ -98,7 +98,7 @@ void ff_imdct_calc(MDCTContext *s, FFTSample *output,
         in1 += 2;
         in2 -= 2;
     }
-    fft_calc(&s->fft, z);
+    ff_fft_calc(&s->fft, z);
 
     /* post rotation + reordering */
     /* XXX: optimize */
@@ -155,7 +155,7 @@ void ff_mdct_calc(MDCTContext *s, FFTSample *out,
         CMUL(x[j].re, x[j].im, re, im, -tcos[n8 + i], tsin[n8 + i]);
     }
 
-    fft_calc(&s->fft, x);
+    ff_fft_calc(&s->fft, x);
   
     /* post rotation */
     for(i=0;i<n4;i++) {
@@ -171,5 +171,5 @@ void ff_mdct_end(MDCTContext *s)
 {
     av_freep(&s->tcos);
     av_freep(&s->tsin);
-    fft_end(&s->fft);
+    ff_fft_end(&s->fft);
 }

libavcodec/ppc/dsputil_ppc.c

@@ -46,7 +46,7 @@ int mm_support(void)
 unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][powerpc_data_total];
 /* list below must match enum in dsputil_ppc.h */
 static unsigned char* perfname[] = {
-  "fft_calc_altivec",
+  "ff_fft_calc_altivec",
   "gmc1_altivec",
   "dct_unquantize_h263_altivec",
   "fdct_altivec",

libavcodec/ppc/fft_altivec.c

@@ -50,7 +50,7 @@
 
 
 /**
- * Do a complex FFT with the parameters defined in fft_init(). The
+ * Do a complex FFT with the parameters defined in ff_fft_init(). The
  * input data must be permuted before with s->revtab table. No
  * 1.0/sqrt(n) normalization is done.
  * AltiVec-enabled
@@ -60,7 +60,7 @@
  * that successive MUL + ADD/SUB have been merged into
  * fused multiply-add ('vec_madd' in altivec)
  */
-void fft_calc_altivec(FFTContext *s, FFTComplex *z)
+void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z)
 {
 POWERPC_PERF_DECLARE(altivec_fft_num, s->nbits >= 6);
 #ifdef ALTIVEC_USE_REFERENCE_C_CODE