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Searched refs:sum_i_old (Results 1 – 24 of 24) sorted by relevance

/dports/multimedia/gstreamer1-plugins-v4l2/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/multimedia/gstreamer1-plugins-vpx/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/multimedia/gstreamer1-plugins-dv/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/multimedia/gstreamer1-plugins-good/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-flac/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-twolame/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-taglib/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-lame/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-jack/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-shout2/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/devel/gstreamer1-plugins-soup/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-png/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-qt/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-jpeg/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-speex/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-wavpack/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/audio/gstreamer1-plugins-mpg123/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/x11-toolkits/gstreamer1-plugins-gtk/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/x11-toolkits/gstreamer1-plugins-gtk4/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-libcaca/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-cairo/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-gdkpixbuf/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/graphics/gstreamer1-plugins-aalib/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
/dports/x11/gstreamer1-plugins-ximagesrc/gst-plugins-good-1.16.2/gst/audiofx/
H A Daudiofxbaseiirfilter.c149 gdouble sum_i_old; in gst_audio_fx_base_iir_filter_calculate_gain() local
157 sum_i_old = sum_ai; in gst_audio_fx_base_iir_filter_calculate_gain()
159 sum_ar = (sum_r_old * zr - sum_i_old * zi) + a[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
160 sum_ai = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()
167 sum_i_old = sum_bi; in gst_audio_fx_base_iir_filter_calculate_gain()
169 sum_br = (sum_r_old * zr - sum_i_old * zi) + b[i]; in gst_audio_fx_base_iir_filter_calculate_gain()
170 sum_bi = (sum_r_old * zi + sum_i_old * zr) + 0.0; in gst_audio_fx_base_iir_filter_calculate_gain()