Revision d42dc217 libavcodec/iirfilter.h
libavcodec/iirfilter.h | ||
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/** |
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* Initialize filter coefficients. |
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* |
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* @param avc a pointer to an arbitrary struct of which the first |
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* field is a pointer to an AVClass struct |
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* @param filt_type filter type (e.g. Butterworth) |
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* @param filt_mode filter mode (e.g. lowpass) |
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* @param order filter order |
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* |
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* @return pointer to filter coefficients structure or NULL if filter cannot be created |
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*/ |
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struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(enum IIRFilterType filt_type, |
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struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(void *avc, |
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enum IIRFilterType filt_type, |
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enum IIRFilterMode filt_mode, |
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int order, float cutoff_ratio, |
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float stopband, float ripple); |
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