Rename sf_table in atrac.c unit to ff_atrac_sf_table.

This ensures a locally-unique name as well as marks the symbol as
FFmpeg-private at least by declaration.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 82e1f217f2)

libavcodec/atrac.c

@@ -32,7 +32,7 @@
 #include "dsputil.h"
 #include "atrac.h"
 
-float sf_table[64];
+float ff_atrac_sf_table[64];
 static float qmf_window[48];
 
 static const float qmf_48tap_half[24] = {
@@ -54,9 +54,9 @@ void atrac_generate_tables(void)
     float s;
 
     /* Generate scale factors */
-    if (!sf_table[63])
+    if (!ff_atrac_sf_table[63])
         for (i=0 ; i<64 ; i++)
-            sf_table[i] = pow(2.0, (i - 15) / 3.0);
+            ff_atrac_sf_table[i] = pow(2.0, (i - 15) / 3.0);
 
     /* Generate the QMF window. */
     if (!qmf_window[47])

libavcodec/atrac.h

@@ -28,8 +28,7 @@
 #ifndef AVCODEC_ATRAC_H
 #define AVCODEC_ATRAC_H
 
-
-extern float sf_table[64];
+extern float ff_atrac_sf_table[64];
 
 void atrac_generate_tables(void);
 void atrac_iqmf (float *inlo, float *inhi, unsigned int nIn, float *pOut, float *delayBuf, float *temp);

libavcodec/atrac1.c

@@ -223,7 +223,7 @@ static int at1_unpack_dequant(GetBitContext* gb, AT1SUCtx* su,
 
             int num_specs = specs_per_bfu[bfu_num];
             int word_len  = !!idwls[bfu_num] + idwls[bfu_num];
-            float scale_factor = sf_table[idsfs[bfu_num]];
+            float scale_factor = ff_atrac_sf_table[idsfs[bfu_num]];
             bits_used += word_len * num_specs; /* add number of bits consumed by current BFU */
 
             /* check for bitstream overflow */

libavcodec/atrac3.c

@@ -327,7 +327,7 @@ static int decodeSpectrum (GetBitContext *gb, float *pOut)
             readQuantSpectralCoeffs (gb, subband_vlc_index[cnt], codingMode, mantissas, subbWidth);
 
             /* Decode the scale factor for this subband. */
-            SF = sf_table[SF_idxs[cnt]] * iMaxQuant[subband_vlc_index[cnt]];
+            SF = ff_atrac_sf_table[SF_idxs[cnt]] * iMaxQuant[subband_vlc_index[cnt]];
 
             /* Inverse quantize the coefficients. */
             for (pIn=mantissas ; first<last; first++, pIn++)
@@ -400,7 +400,7 @@ static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent
                 coded_values = coded_values_per_component + 1;
                 coded_values = FFMIN(max_coded_values,coded_values);
 
-                scalefactor = sf_table[sfIndx] * iMaxQuant[quant_step_index];
+                scalefactor = ff_atrac_sf_table[sfIndx] * iMaxQuant[quant_step_index];
 
                 readQuantSpectralCoeffs(gb, quant_step_index, coding_mode, mantissa, coded_values);