Changeset 5548:73e43db30a1c in roaraudio for libroardsp

Timestamp:

06/17/12 23:07:36 (12 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

Added filter based on Goertzel algorithm

Location:

libroardsp

Files:

• Makefile (modified) (1 diff)
• filter.c (modified) (1 diff)
• filter_goertzel.c (added)

libroardsp/Makefile

@@ -7 +7 @@
 OBJS=libroardsp.o convert.o midside.o poly.o filter.o filterchain.o remove.o transcode.o vio_transcode.o rms.o fader.o mixer.o amp.o interleave.o channels.o resampler_poly3.o float.o dtmf.o
 OLDROAR=midi.o
-FILTER=filter_lowp.o filter_highp.o filter_amp.o filter_quantify.o filter_add.o filter_clip.o filter_downmix.o filter_dcblock.o filter_swap.o filter_agc.o filter_speex_prep.o filter_responsecurve.o
+FILTER=filter_lowp.o filter_highp.o filter_amp.o filter_quantify.o filter_add.o filter_clip.o filter_downmix.o filter_dcblock.o filter_swap.o filter_agc.o filter_speex_prep.o filter_responsecurve.o filter_goertzel.o
 MIDI=synth.o
 CODECS=alaw.o mulaw.o

libroardsp/filter.c

@@ -75 +75 @@
            {NULL, NULL, NULL},{roardsp_responsecurve_calc32, NULL, NULL}
  }},
+ {ROARDSP_FILTER_GOERTZEL, "Goertzel", roardsp_goertzel_init, roardsp_goertzel_uninit,
+                                       roardsp_goertzel_ctl, roardsp_goertzel_reset, {
+           {NULL, NULL, NULL},{roardsp_goertzel_calc8, NULL, NULL},{roardsp_goertzel_calc16, NULL, NULL},
+           {NULL, NULL, NULL},{roardsp_goertzel_calc32, NULL, NULL}
+ }},
 #endif
  {-1, NULL, NULL, NULL, NULL, NULL, {