]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/iirfilter.h
dsputil_mmx.c: remove ff_vector128.
[ffmpeg] / libavcodec / iirfilter.h
index fd2616686281b8c0d08e7b4178589b884ee93ded..b29e0358118e4ec4ae698c131dd4d140b845098b 100644 (file)
@@ -34,6 +34,7 @@ struct FFIIRFilterState;
 
 enum IIRFilterType{
     FF_FILTER_TYPE_BESSEL,
+    FF_FILTER_TYPE_BIQUAD,
     FF_FILTER_TYPE_BUTTERWORTH,
     FF_FILTER_TYPE_CHEBYSHEV,
     FF_FILTER_TYPE_ELLIPTIC,
@@ -49,6 +50,8 @@ enum IIRFilterMode{
 /**
  * Initialize filter coefficients.
  *
+ * @param avc          a pointer to an arbitrary struct of which the first
+ *                     field is a pointer to an AVClass struct
  * @param filt_type    filter type (e.g. Butterworth)
  * @param filt_mode    filter mode (e.g. lowpass)
  * @param order        filter order
@@ -58,10 +61,11 @@ enum IIRFilterMode{
  *
  * @return pointer to filter coefficients structure or NULL if filter cannot be created
  */
-struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(enum IIRFilterType filt_type,
-                                                    enum IIRFilterMode filt_mode,
-                                                    int order, float cutoff_ratio,
-                                                    float stopband, float ripple);
+struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(void *avc,
+                                                enum IIRFilterType filt_type,
+                                                enum IIRFilterMode filt_mode,
+                                                int order, float cutoff_ratio,
+                                                float stopband, float ripple);
 
 /**
  * Create new filter state.
@@ -113,6 +117,6 @@ void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct FFIIRFilterSta
  */
 void ff_iir_filter_flt(const struct FFIIRFilterCoeffs *coeffs,
                        struct FFIIRFilterState *state, int size,
-                       const float *src, int sstep, void *dst, int dstep);
+                       const float *src, int sstep, float *dst, int dstep);
 
 #endif /* AVCODEC_IIRFILTER_H */