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@@ -203,25 +203,24 @@ AVResampleContext *swr_resample_init(AVResampleContext *c, int out_rate, int in_ |
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double factor= FFMIN(out_rate * cutoff / in_rate, 1.0); |
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int phase_count= 1<<phase_shift; |
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if(!c || c->phase_shift!=phase_shift || c->linear!=linear || c->factor != factor |
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|| c->filter_length!=FFMAX((int)ceil(filter_size/factor), 1)){ |
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c= av_mallocz(sizeof(AVResampleContext)); |
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if (!c) |
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return NULL; |
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c->phase_shift= phase_shift; |
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c->phase_mask= phase_count-1; |
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c->linear= linear; |
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c->factor= factor; |
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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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if (!c->filter_bank) |
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goto error; |
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if (build_filter(c->filter_bank, factor, c->filter_length, phase_count, 1<<FILTER_SHIFT, WINDOW_TYPE)) |
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goto error; |
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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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if (!c || c->phase_shift != phase_shift || c->linear!=linear || c->factor != factor |
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|| c->filter_length != FFMAX((int)ceil(filter_size/factor), 1)) { |
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c = av_mallocz(sizeof(AVResampleContext)); |
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if (!c) |
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return NULL; |
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c->phase_shift = phase_shift; |
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c->phase_mask = phase_count - 1; |
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c->linear = linear; |
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c->factor = factor; |
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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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if (!c->filter_bank) |
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goto error; |
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if (build_filter(c->filter_bank, factor, c->filter_length, phase_count, 1<<FILTER_SHIFT, WINDOW_TYPE)) |
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goto error; |
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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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} |
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c->compensation_distance= 0; |
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