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select more sensible default windows (= attenuation beyond the dynamic range of your input is silly if it negatively affects other parameters)
Originally committed as revision 8473 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -37,6 +37,7 @@
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#define FELEM2 int32_t
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#define FELEM_MAX INT16_MAX
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#define FELEM_MIN INT16_MIN
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#define WINDOW_TYPE 9
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#else
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#define FILTER_SHIFT 30
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@ -44,6 +45,7 @@
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#define FELEM2 int64_t
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#define FELEM_MAX INT32_MAX
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#define FELEM_MIN INT32_MIN
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#define WINDOW_TYPE 12
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#endif
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@ -177,7 +179,7 @@ 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, 1);
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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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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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