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Make av_build_filter static (and remove av_): It is not used outside resample2.c.
Originally committed as revision 22118 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -95,7 +95,7 @@ static double bessel(double x){
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* @param scale wanted sum of coefficients for each filter
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* @param type 0->cubic, 1->blackman nuttall windowed sinc, 2..16->kaiser windowed sinc beta=2..16
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*/
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void av_build_filter(FELEM *filter, double factor, int tap_count, int phase_count, int scale, int type){
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static void build_filter(FELEM *filter, double factor, int tap_count, int phase_count, int scale, int type){
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int ph, i;
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double x, y, w, tab[tap_count];
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const int center= (tap_count-1)/2;
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@ -189,7 +189,7 @@ AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_size,
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c->filter_length= FFMAX((int)ceil(filter_size/factor), 1);
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c->filter_bank= av_mallocz(c->filter_length*(phase_count+1)*sizeof(FELEM));
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av_build_filter(c->filter_bank, factor, c->filter_length, phase_count, 1<<FILTER_SHIFT, WINDOW_TYPE);
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build_filter(c->filter_bank, factor, c->filter_length, phase_count, 1<<FILTER_SHIFT, WINDOW_TYPE);
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memcpy(&c->filter_bank[c->filter_length*phase_count+1], c->filter_bank, (c->filter_length-1)*sizeof(FELEM));
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c->filter_bank[c->filter_length*phase_count]= c->filter_bank[c->filter_length - 1];
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