From f41f5c4d72b1b14fb66c1f3f39ef727cd32a6cdd Mon Sep 17 00:00:00 2001
From: Paul Brossier <piem@altern.org>
Date: Sun, 6 Nov 2005 11:38:54 +0000
Subject: [PATCH] added aubioquiet in examples added aubioquiet in examples

---
 examples/Makefile.am  |  3 ++
 examples/aubioquiet.c | 76 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 examples/aubioquiet.c

diff --git a/examples/Makefile.am b/examples/Makefile.am
index fbaca77d..7084f954 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -11,6 +11,7 @@ AM_LDFLAGS = -L../src -L../ext @LADCCA_LIBS@ -laubioext -laubio
 bin_PROGRAMS = \
 	aubioonset \
 	aubiotrack \
+	aubioquiet \
 	aubionotes
 
 EXTRA_DIST = utils.h
@@ -19,7 +20,9 @@ EXTRA_DIST = utils.h
 aubioonset_SOURCES = aubioonset.c utils.c
 aubionotes_SOURCES = aubionotes.c utils.c
 aubiotrack_SOURCES = aubiotrack.c utils.c
+aubioquiet_SOURCES = aubioquiet.c utils.c
 
 aubioonset_LDADD = @JACK_LIBS@
 aubionotes_LDADD = @JACK_LIBS@
 aubiotrack_LDADD = @JACK_LIBS@
+aubioquiet_LDADD = @JACK_LIBS@
diff --git a/examples/aubioquiet.c b/examples/aubioquiet.c
new file mode 100644
index 00000000..7161f6bf
--- /dev/null
+++ b/examples/aubioquiet.c
@@ -0,0 +1,76 @@
+/*
+   Copyright (C) 2003 Paul Brossier
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "utils.h"
+
+unsigned int pos = 0; /*frames%dspblocksize*/
+sint_t wassilence = 1, issilence;
+uint_t usepitch = 0;
+
+int aubio_process(float **input, float **output, int nframes);
+int aubio_process(float **input, float **output, int nframes) {
+  unsigned int i;       /*channels*/
+  unsigned int j;       /*frames*/
+  for (j=0;j<nframes;j++) {
+    if(usejack) {
+      for (i=0;i<channels;i++) {
+        /* write input to datanew */
+        fvec_write_sample(ibuf, input[i][j], i, pos);
+        /* put synthnew in output */
+        output[i][j] = fvec_read_sample(obuf, i, pos);
+      }
+    }
+    /*time for fft*/
+    if (pos == overlap_size-1) {         
+      /* test for silence */
+      if (aubio_silence_detection(ibuf, threshold2)==1) {
+	if (wassilence==1) issilence = 1;
+	else issilence = 2;
+        wassilence=1;
+      } else { 
+	if (wassilence<=0) issilence = 0;
+	else issilence = -1;
+        wassilence=0;
+      }
+      /* end of block loop */
+      pos = -1; /* so it will be zero next j loop */
+    }
+    pos++;
+  }
+  return 1;
+}
+
+void process_print (void);
+void process_print (void) {
+      int curframes = (frames - 4) > 0 ? frames -4 : 0;
+      if (issilence == -1) {
+          outmsg("NOISY: %f\n",curframes*overlap_size/(float)samplerate);
+      } else if (issilence == 2) { 
+          outmsg("QUIET: %f\n",curframes*overlap_size/(float)samplerate);
+      }
+}
+
+int main(int argc, char **argv) {
+  examples_common_init(argc,argv);
+  examples_common_process(aubio_process,process_print);
+  examples_common_del();
+  debug("End of program.\n");
+  fflush(stderr);
+  return 0;
+}
+
-- 
2.26.2