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authorStefan Kost <ensonic@users.sourceforge.net>2006-05-20 22:42:15 +0000
committerStefan Kost <ensonic@users.sourceforge.net>2006-05-20 22:42:15 +0000
commit0428d5cf5f24a2bc1f6d141c804468f8d62aa23b (patch)
tree8cc00ebcc0bc1d6d61570d1ec06f570273b1c08b
parent4e5f3fae24ac58f703d7cd18216c355c2e73452f (diff)
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Initial port of the spectrum element
Original commit message from CVS: * configure.ac: * gst/spectrum/demo-osssrc.c: (spectrum_chain), (main): * gst/spectrum/fix_fft.c: (gst_spectrum_fix_dot): * gst/spectrum/gstspectrum.c: (gst_spectrum_get_type), (gst_spectrum_base_init), (gst_spectrum_class_init), (gst_spectrum_init), (gst_spectrum_dispose), (gst_spectrum_set_property), (gst_spectrum_chain): * gst/spectrum/gstspectrum.h: Initial port of the spectrum element
-rw-r--r--ChangeLog12
-rw-r--r--configure.ac35
-rw-r--r--gst/spectrum/demo-osssrc.c51
-rw-r--r--gst/spectrum/fix_fft.c317
-rw-r--r--gst/spectrum/gstspectrum.c167
-rw-r--r--gst/spectrum/gstspectrum.h4
6 files changed, 334 insertions, 252 deletions
diff --git a/ChangeLog b/ChangeLog
index bf3df213..12a060a6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2006-05-21 Stefan Kost <ensonic@users.sf.net>
+
+ * configure.ac:
+ * gst/spectrum/demo-osssrc.c: (spectrum_chain), (main):
+ * gst/spectrum/fix_fft.c: (gst_spectrum_fix_dot):
+ * gst/spectrum/gstspectrum.c: (gst_spectrum_get_type),
+ (gst_spectrum_base_init), (gst_spectrum_class_init),
+ (gst_spectrum_init), (gst_spectrum_dispose),
+ (gst_spectrum_set_property), (gst_spectrum_chain):
+ * gst/spectrum/gstspectrum.h:
+ Initial port of the spectrum element
+
2006-05-19 Edgard Lima <edgard.lima@indt.org.br>
* sys/v4l2/gstv4l2.c:
diff --git a/configure.ac b/configure.ac
index 7fae772a..592ab421 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,6 +79,7 @@ GST_PLUGINS_ALL="\
cdxaparse \
freeze \
modplug \
+ spectrum \
speed \
qtdemux \
xingheader \
@@ -154,16 +155,41 @@ dnl uninstalled is selected preferentially -- see pkg-config(1)
GST_CHECK_GST($GST_MAJORMINOR, [$GST_REQ])
GST_CHECK_GST_BASE($GST_MAJORMINOR, [$GST_REQ])
GST_CHECK_GST_CHECK($GST_MAJORMINOR, [$GST_REQ], no)
+GST_CHECK_GST_PLUGINS_BASE($GST_MAJORMINOR, [$GSTPB_REQ], no)
+
+GSTPB_PLUGINS_DIR=`$PKG_CONFIG gstreamer-plugins-base-$GST_MAJORMINOR --variable pluginsdir`
+AC_SUBST(GSTPB_PLUGINS_DIR)
+AC_MSG_NOTICE(Using GStreamer Base Plugins in $GSTPB_PLUGINS_DIR)
dnl FIXME: get rid of this by making sure gstreamer-check brings it in
dnl check for "check", unit testing library/header
AM_PATH_CHECK(0.9.2, HAVE_CHECK=yes, HAVE_CHECK=no)
AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_CHECK" = "xyes")
-GST_CHECK_GST_PLUGINS_BASE($GST_MAJORMINOR, [$GSTPB_REQ], no)
-GSTPB_PLUGINS_DIR=`$PKG_CONFIG gstreamer-plugins-base-$GST_MAJORMINOR --variable pluginsdir`
-AC_SUBST(GSTPB_PLUGINS_DIR)
-AC_MSG_NOTICE(Using GStreamer Base Plugins in $GSTPB_PLUGINS_DIR)
+dnl GTK is optional and used in examples
+HAVE_GTK=NO
+PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.2.0, HAVE_GTK_22=yes, HAVE_GTK_22=no)
+if test "x$HAVE_GTK_22" = "xyes"; then
+ HAVE_GTK=yes
+ GTK_VERSION=`$PKG_CONFIG --variable=gtk_binary_version gtk+-2.0`
+ AC_SUBST(GTK_VERSION)
+ GTK_PREFIX=`$PKG_CONFIG --variable=prefix gdk-pixbuf-2.0`
+ AC_SUBST(GTK_BASE_DIR)
+ GDK_PIXBUF_LIBDIR=`$PKG_CONFIG --variable=libdir gdk-pixbuf-2.0`
+ GDK_PIXBUF_PREFIXDIR=`$PKG_CONFIG --variable=prefix gdk-pixbuf-2.0`
+ AC_SUBST(GTK_BASE_DIR)
+else
+ PKG_CHECK_MODULES(GTK2, gtk+-2.0, HAVE_GTK_20=yes, HAVE_GTK_20=no)
+fi
+if test "x$HAVE_GTK_20" = "xyes"; then
+ HAVE_GTK=yes
+fi
+GTK_CFLAGS=$GTK2_CFLAGS
+GTK_LIBS=$GTK2_LIBS
+AC_SUBST(GTK_LIBS)
+AC_SUBST(GTK_CFLAGS)
+AC_SUBST(HAVE_GTK)
+AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
dnl set license and copyright notice
GST_LICENSE="LGPL"
@@ -679,6 +705,7 @@ gst/cdxaparse/Makefile
gst/freeze/Makefile
gst/modplug/Makefile
gst/modplug/libmodplug/Makefile
+gst/spectrum/Makefile
gst/speed/Makefile
gst/qtdemux/Makefile
gst/tta/Makefile
diff --git a/gst/spectrum/demo-osssrc.c b/gst/spectrum/demo-osssrc.c
index b51e8c2a..9bdb93f7 100644
--- a/gst/spectrum/demo-osssrc.c
+++ b/gst/spectrum/demo-osssrc.c
@@ -4,26 +4,26 @@
#include <gst/gst.h>
#include <gtk/gtk.h>
-extern gboolean _gst_plugin_spew;
-
-gboolean idle_func (gpointer data);
+#define DEFAULT_AUDIOSRC "alsasrc"
+#define SPECT_BANDS 256
GtkWidget *drawingarea;
-void
+static void
spectrum_chain (GstElement * sink, GstBuffer * buf, GstPad * pad,
gpointer unused)
{
gint i;
guchar *data = buf->data;
- GdkRectangle rect = { 0, 0, GST_BUFFER_SIZE (buf), 25 };
+ gint width = GST_BUFFER_SIZE (buf);
+ GdkRectangle rect = { 0, 0, width, 50 };
gdk_window_begin_paint_rect (drawingarea->window, &rect);
gdk_draw_rectangle (drawingarea->window, drawingarea->style->black_gc,
- TRUE, 0, 0, GST_BUFFER_SIZE (buf), 25);
- for (i = 0; i < GST_BUFFER_SIZE (buf); i++) {
+ TRUE, 0, 0, width, 50);
+ for (i = 0; i < width; i++) {
gdk_draw_rectangle (drawingarea->window, drawingarea->style->white_gc,
- TRUE, i, 32 - data[i], 1, data[i]);
+ TRUE, i, 64 - data[i], 1, data[i]);
}
gdk_window_end_paint (drawingarea->window);
}
@@ -32,7 +32,7 @@ int
main (int argc, char *argv[])
{
GstElement *bin;
- GstElement *src, *spectrum, *sink;
+ GstElement *src, *conv, *spectrum, *sink;
GtkWidget *appwindow;
@@ -42,34 +42,35 @@ main (int argc, char *argv[])
bin = gst_pipeline_new ("bin");
src = gst_element_factory_make (DEFAULT_AUDIOSRC, "src");
- g_object_set (G_OBJECT (src), "buffersize", (gulong) 1024, NULL);
+ g_object_set (G_OBJECT (src), "blocksize", (gulong) 1024 * 2, NULL);
+
+ conv = gst_element_factory_make ("audioconvert", "conv");
+
spectrum = gst_element_factory_make ("spectrum", "spectrum");
- g_object_set (G_OBJECT (spectrum), "width", 256, NULL);
+ g_object_set (G_OBJECT (spectrum), "width", SPECT_BANDS, NULL);
+
sink = gst_element_factory_make ("fakesink", "sink");
g_object_set (G_OBJECT (sink), "signal-handoffs", TRUE, NULL);
+
g_signal_connect (sink, "handoff", G_CALLBACK (spectrum_chain), NULL);
- gst_bin_add_many (GST_BIN (bin), src, spectrum, sink, NULL);
- gst_element_link_many (src, spectrum, sink, NULL);
+ gst_bin_add_many (GST_BIN (bin), src, conv, spectrum, sink, NULL);
+ if (!gst_element_link_many (src, conv, spectrum, sink, NULL)) {
+ fprintf (stderr, "cant link elements\n");
+ exit (1);
+ }
appwindow = gtk_window_new (GTK_WINDOW_TOPLEVEL);
drawingarea = gtk_drawing_area_new ();
- gtk_drawing_area_size (GTK_DRAWING_AREA (drawingarea), 256, 32);
+ gtk_drawing_area_size (GTK_DRAWING_AREA (drawingarea), SPECT_BANDS, 64);
gtk_container_add (GTK_CONTAINER (appwindow), drawingarea);
gtk_widget_show_all (appwindow);
- gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
-
- g_idle_add (idle_func, bin);
-
+ gst_element_set_state (bin, GST_STATE_PLAYING);
gtk_main ();
+ gst_element_set_state (bin, GST_STATE_NULL);
- return 0;
-}
-
+ gst_object_unref (bin);
-gboolean
-idle_func (gpointer data)
-{
- return gst_bin_iterate (data);
+ return 0;
}
diff --git a/gst/spectrum/fix_fft.c b/gst/spectrum/fix_fft.c
index d5aed1f1..c453c6ff 100644
--- a/gst/spectrum/fix_fft.c
+++ b/gst/spectrum/fix_fft.c
@@ -54,9 +54,6 @@
#define fixed short
/* FIX_MPY() - fixed-point multiplication macro.
- This macro is a statement, not an expression (uses asm).
- BEWARE: make sure _DX is not clobbered by evaluating (A) or DEST.
- args are all of type fixed.
Scaling ensures that 32767*32767 = 32767. */
#define FIX_MPY(DEST,A,B) DEST = ((long)(A) * (long)(B))>>15
@@ -65,8 +62,9 @@
#define LOG2_N_WAVE 10 /* log2(N_WAVE) */
#define N_LOUD 100 /* dimension of Loudampl[] */
-extern fixed gst_spectrum_Sinewave[N_WAVE]; /* placed at end of this file for clarity */
-extern fixed gst_spectrum_Loudampl[N_LOUD];
+extern fixed const gst_spectrum_Sinewave[N_WAVE]; /* placed at end of this file for clarity */
+extern fixed const gst_spectrum_Loudampl[N_LOUD];
+
static int gst_spectrum_db_from_ampl (fixed re, fixed im);
static fixed gst_spectrum_fix_mpy (fixed a, fixed b);
@@ -221,7 +219,7 @@ gst_spectrum_fix_loud (fixed loud[], fixed fr[], fixed fi[], int n,
/* db_from_ampl() - find loudness (in dB) from
the complex amplitude.
*/
-int
+static int
gst_spectrum_db_from_ampl (fixed re, fixed im)
{
static long loud2[N_LOUD] = { 0 };
@@ -250,17 +248,18 @@ gst_spectrum_db_from_ampl (fixed re, fixed im)
/*
fix_mpy() - fixed-point multiplication
*/
-fixed
+static fixed
gst_spectrum_fix_mpy (fixed a, fixed b)
{
FIX_MPY (a, a, b);
return a;
}
+#if 0
/*
iscale() - scale an integer value by (numer/denom)
*/
-int
+static int
gst_spectrum_iscale (int value, int numer, int denom)
{
return (long) value *(long) numer / (long) denom;
@@ -269,19 +268,20 @@ gst_spectrum_iscale (int value, int numer, int denom)
/*
fix_dot() - dot product of two fixed arrays
*/
-fixed
+static fixed
gst_spectrum_fix_dot (fixed * hpa, fixed * pb, int n)
{
fixed *pa = hpa; /* FIXME */
long sum;
register fixed a, b;
-/* seg = FP_SEG(hpa);
- off = FP_OFF(hpa);
- seg += off>>4;
- off &= 0x000F;
- pa = MK_FP(seg,off);
- */
+ /*
+ seg = FP_SEG(hpa);
+ off = FP_OFF(hpa);
+ seg += off>>4;
+ off &= 0x000F;
+ pa = MK_FP(seg,off);
+ */
sum = 0L;
while (n--) {
a = *pa++;
@@ -298,153 +298,156 @@ gst_spectrum_fix_dot (fixed * hpa, fixed * pb, int n)
return (fixed) sum;
}
+#endif
#if N_WAVE != 1024
ERROR:N_WAVE != 1024
#endif
- fixed gst_spectrum_Sinewave[1024] = {
-0, 201, 402, 603, 804, 1005, 1206, 1406,
- 1607, 1808, 2009, 2209, 2410, 2610, 2811, 3011,
- 3211, 3411, 3611, 3811, 4011, 4210, 4409, 4608,
- 4807, 5006, 5205, 5403, 5601, 5799, 5997, 6195,
- 6392, 6589, 6786, 6982, 7179, 7375, 7571, 7766,
- 7961, 8156, 8351, 8545, 8739, 8932, 9126, 9319,
- 9511, 9703, 9895, 10087, 10278, 10469, 10659, 10849,
- 11038, 11227, 11416, 11604, 11792, 11980, 12166, 12353,
- 12539, 12724, 12909, 13094, 13278, 13462, 13645, 13827,
- 14009, 14191, 14372, 14552, 14732, 14911, 15090, 15268,
- 15446, 15623, 15799, 15975, 16150, 16325, 16499, 16672,
- 16845, 17017, 17189, 17360, 17530, 17699, 17868, 18036,
- 18204, 18371, 18537, 18702, 18867, 19031, 19194, 19357,
- 19519, 19680, 19840, 20000, 20159, 20317, 20474, 20631,
- 20787, 20942, 21096, 21249, 21402, 21554, 21705, 21855,
- 22004, 22153, 22301, 22448, 22594, 22739, 22883, 23027,
- 23169, 23311, 23452, 23592, 23731, 23869, 24006, 24143,
- 24278, 24413, 24546, 24679, 24811, 24942, 25072, 25201,
- 25329, 25456, 25582, 25707, 25831, 25954, 26077, 26198,
- 26318, 26437, 26556, 26673, 26789, 26905, 27019, 27132,
- 27244, 27355, 27466, 27575, 27683, 27790, 27896, 28001,
- 28105, 28208, 28309, 28410, 28510, 28608, 28706, 28802,
- 28897, 28992, 29085, 29177, 29268, 29358, 29446, 29534,
- 29621, 29706, 29790, 29873, 29955, 30036, 30116, 30195,
- 30272, 30349, 30424, 30498, 30571, 30643, 30713, 30783,
- 30851, 30918, 30984, 31049,
- 31113, 31175, 31236, 31297,
- 31356, 31413, 31470, 31525, 31580, 31633, 31684, 31735,
- 31785, 31833, 31880, 31926, 31970, 32014, 32056, 32097,
- 32137, 32176, 32213, 32249, 32284, 32318, 32350, 32382,
- 32412, 32441, 32468, 32495, 32520, 32544, 32567, 32588,
- 32609, 32628, 32646, 32662, 32678, 32692, 32705, 32717,
- 32727, 32736, 32744, 32751, 32757, 32761, 32764, 32766,
- 32767, 32766, 32764, 32761, 32757, 32751, 32744, 32736,
- 32727, 32717, 32705, 32692, 32678, 32662, 32646, 32628,
- 32609, 32588, 32567, 32544, 32520, 32495, 32468, 32441,
- 32412, 32382, 32350, 32318, 32284, 32249, 32213, 32176,
- 32137, 32097, 32056, 32014, 31970, 31926, 31880, 31833,
- 31785, 31735, 31684, 31633, 31580, 31525, 31470, 31413,
- 31356, 31297, 31236, 31175, 31113, 31049, 30984, 30918,
- 30851, 30783, 30713, 30643, 30571, 30498, 30424, 30349,
- 30272, 30195, 30116, 30036, 29955, 29873, 29790, 29706,
- 29621, 29534, 29446, 29358, 29268, 29177, 29085, 28992,
- 28897, 28802, 28706, 28608, 28510, 28410, 28309, 28208,
- 28105, 28001, 27896, 27790, 27683, 27575, 27466, 27355,
- 27244, 27132, 27019, 26905, 26789, 26673, 26556, 26437,
- 26318, 26198, 26077, 25954, 25831, 25707, 25582, 25456,
- 25329, 25201, 25072, 24942, 24811, 24679, 24546, 24413,
- 24278, 24143, 24006, 23869, 23731, 23592, 23452, 23311,
- 23169, 23027, 22883, 22739, 22594, 22448, 22301, 22153,
- 22004, 21855, 21705, 21554, 21402, 21249, 21096, 20942,
- 20787, 20631, 20474, 20317, 20159, 20000, 19840, 19680,
- 19519, 19357, 19194, 19031, 18867, 18702, 18537, 18371,
- 18204, 18036, 17868, 17699, 17530, 17360, 17189, 17017,
- 16845, 16672, 16499, 16325, 16150, 15975, 15799, 15623,
- 15446, 15268, 15090, 14911, 14732, 14552, 14372, 14191,
- 14009, 13827, 13645, 13462, 13278, 13094, 12909, 12724,
- 12539, 12353, 12166, 11980, 11792, 11604, 11416, 11227,
- 11038, 10849, 10659, 10469, 10278, 10087, 9895, 9703,
- 9511, 9319, 9126, 8932, 8739, 8545, 8351, 8156,
- 7961, 7766, 7571, 7375, 7179, 6982, 6786, 6589,
- 6392, 6195, 5997, 5799, 5601, 5403, 5205, 5006,
- 4807, 4608, 4409, 4210, 4011, 3811, 3611, 3411,
- 3211, 3011, 2811, 2610, 2410, 2209, 2009, 1808,
- 1607, 1406, 1206, 1005, 804, 603, 402, 201,
- 0, -201, -402, -603, -804, -1005, -1206, -1406,
- -1607, -1808, -2009, -2209, -2410, -2610, -2811, -3011,
- -3211, -3411, -3611, -3811, -4011, -4210, -4409, -4608,
- -4807, -5006, -5205, -5403, -5601, -5799, -5997, -6195,
- -6392, -6589, -6786, -6982, -7179, -7375, -7571, -7766,
- -7961, -8156, -8351, -8545, -8739, -8932, -9126, -9319,
- -9511, -9703, -9895, -10087, -10278, -10469, -10659, -10849,
- -11038, -11227, -11416, -11604, -11792, -11980, -12166, -12353,
- -12539, -12724, -12909, -13094, -13278, -13462, -13645, -13827,
- -14009, -14191, -14372, -14552, -14732, -14911, -15090, -15268,
- -15446, -15623, -15799, -15975, -16150, -16325, -16499, -16672,
- -16845, -17017, -17189, -17360, -17530, -17699, -17868, -18036,
- -18204, -18371, -18537, -18702, -18867, -19031, -19194, -19357,
- -19519, -19680, -19840, -20000, -20159, -20317, -20474, -20631,
- -20787, -20942, -21096, -21249, -21402, -21554, -21705, -21855,
- -22004, -22153, -22301, -22448, -22594, -22739, -22883, -23027,
- -23169, -23311, -23452, -23592, -23731, -23869, -24006, -24143,
- -24278, -24413, -24546, -24679, -24811, -24942, -25072, -25201,
- -25329, -25456, -25582, -25707, -25831, -25954, -26077, -26198,
- -26318, -26437, -26556, -26673, -26789, -26905, -27019, -27132,
- -27244, -27355, -27466, -27575, -27683, -27790, -27896, -28001,
- -28105, -28208, -28309, -28410, -28510, -28608, -28706, -28802,
- -28897, -28992, -29085, -29177, -29268, -29358, -29446, -29534,
- -29621, -29706, -29790, -29873, -29955, -30036, -30116, -30195,
- -30272, -30349, -30424, -30498, -30571, -30643, -30713, -30783,
- -30851, -30918, -30984, -31049, -31113, -31175, -31236, -31297,
- -31356, -31413, -31470, -31525, -31580, -31633, -31684, -31735,
- -31785, -31833, -31880, -31926, -31970, -32014, -32056, -32097,
- -32137, -32176, -32213, -32249, -32284, -32318, -32350, -32382,
- -32412, -32441, -32468, -32495, -32520, -32544, -32567, -32588,
- -32609, -32628, -32646, -32662, -32678, -32692, -32705, -32717,
- -32727, -32736, -32744, -32751, -32757, -32761, -32764, -32766,
- -32767, -32766, -32764, -32761, -32757, -32751, -32744, -32736,
- -32727, -32717, -32705, -32692, -32678, -32662, -32646, -32628,
- -32609, -32588, -32567, -32544, -32520, -32495, -32468, -32441,
- -32412, -32382, -32350, -32318, -32284, -32249, -32213, -32176,
- -32137, -32097, -32056, -32014, -31970, -31926, -31880, -31833,
- -31785, -31735, -31684, -31633, -31580, -31525, -31470, -31413,
- -31356, -31297, -31236, -31175, -31113, -31049, -30984, -30918,
- -30851, -30783, -30713, -30643, -30571, -30498, -30424, -30349,
- -30272, -30195, -30116, -30036, -29955, -29873, -29790, -29706,
- -29621, -29534, -29446, -29358, -29268, -29177, -29085, -28992,
- -28897, -28802, -28706, -28608, -28510, -28410, -28309, -28208,
- -28105, -28001, -27896, -27790, -27683, -27575, -27466, -27355,
- -27244, -27132, -27019, -26905, -26789, -26673, -26556, -26437,
- -26318, -26198, -26077, -25954, -25831, -25707, -25582, -25456,
- -25329, -25201, -25072, -24942, -24811, -24679, -24546, -24413,
- -24278, -24143, -24006, -23869, -23731, -23592, -23452, -23311,
- -23169, -23027, -22883, -22739, -22594, -22448, -22301, -22153,
- -22004, -21855, -21705, -21554, -21402, -21249, -21096, -20942,
- -20787, -20631, -20474, -20317, -20159, -20000, -19840, -19680,
- -19519, -19357, -19194, -19031, -18867, -18702, -18537, -18371,
- -18204, -18036, -17868, -17699, -17530, -17360, -17189, -17017,
- -16845, -16672, -16499, -16325, -16150, -15975, -15799, -15623,
- -15446, -15268, -15090, -14911, -14732, -14552, -14372, -14191,
- -14009, -13827, -13645, -13462, -13278, -13094, -12909, -12724,
- -12539, -12353, -12166, -11980, -11792, -11604, -11416, -11227,
- -11038, -10849, -10659, -10469, -10278, -10087, -9895, -9703,
- -9511, -9319, -9126, -8932, -8739, -8545, -8351, -8156,
- -7961, -7766, -7571, -7375, -7179, -6982, -6786, -6589,
- -6392, -6195, -5997, -5799, -5601, -5403, -5205, -5006,
- -4807, -4608, -4409, -4210, -4011, -3811, -3611, -3411,
- -3211, -3011, -2811, -2610, -2410, -2209, -2009, -1808,
- -1607, -1406, -1206, -1005, -804, -603, -402, -201,};
+fixed const gst_spectrum_Sinewave[1024] = {
+ 0, 201, 402, 603, 804, 1005, 1206, 1406,
+ 1607, 1808, 2009, 2209, 2410, 2610, 2811, 3011,
+ 3211, 3411, 3611, 3811, 4011, 4210, 4409, 4608,
+ 4807, 5006, 5205, 5403, 5601, 5799, 5997, 6195,
+ 6392, 6589, 6786, 6982, 7179, 7375, 7571, 7766,
+ 7961, 8156, 8351, 8545, 8739, 8932, 9126, 9319,
+ 9511, 9703, 9895, 10087, 10278, 10469, 10659, 10849,
+ 11038, 11227, 11416, 11604, 11792, 11980, 12166, 12353,
+ 12539, 12724, 12909, 13094, 13278, 13462, 13645, 13827,
+ 14009, 14191, 14372, 14552, 14732, 14911, 15090, 15268,
+ 15446, 15623, 15799, 15975, 16150, 16325, 16499, 16672,
+ 16845, 17017, 17189, 17360, 17530, 17699, 17868, 18036,
+ 18204, 18371, 18537, 18702, 18867, 19031, 19194, 19357,
+ 19519, 19680, 19840, 20000, 20159, 20317, 20474, 20631,
+ 20787, 20942, 21096, 21249, 21402, 21554, 21705, 21855,
+ 22004, 22153, 22301, 22448, 22594, 22739, 22883, 23027,
+ 23169, 23311, 23452, 23592, 23731, 23869, 24006, 24143,
+ 24278, 24413, 24546, 24679, 24811, 24942, 25072, 25201,
+ 25329, 25456, 25582, 25707, 25831, 25954, 26077, 26198,
+ 26318, 26437, 26556, 26673, 26789, 26905, 27019, 27132,
+ 27244, 27355, 27466, 27575, 27683, 27790, 27896, 28001,
+ 28105, 28208, 28309, 28410, 28510, 28608, 28706, 28802,
+ 28897, 28992, 29085, 29177, 29268, 29358, 29446, 29534,
+ 29621, 29706, 29790, 29873, 29955, 30036, 30116, 30195,
+ 30272, 30349, 30424, 30498, 30571, 30643, 30713, 30783,
+ 30851, 30918, 30984, 31049,
+ 31113, 31175, 31236, 31297,
+ 31356, 31413, 31470, 31525, 31580, 31633, 31684, 31735,
+ 31785, 31833, 31880, 31926, 31970, 32014, 32056, 32097,
+ 32137, 32176, 32213, 32249, 32284, 32318, 32350, 32382,
+ 32412, 32441, 32468, 32495, 32520, 32544, 32567, 32588,
+ 32609, 32628, 32646, 32662, 32678, 32692, 32705, 32717,
+ 32727, 32736, 32744, 32751, 32757, 32761, 32764, 32766,
+ 32767, 32766, 32764, 32761, 32757, 32751, 32744, 32736,
+ 32727, 32717, 32705, 32692, 32678, 32662, 32646, 32628,
+ 32609, 32588, 32567, 32544, 32520, 32495, 32468, 32441,
+ 32412, 32382, 32350, 32318, 32284, 32249, 32213, 32176,
+ 32137, 32097, 32056, 32014, 31970, 31926, 31880, 31833,
+ 31785, 31735, 31684, 31633, 31580, 31525, 31470, 31413,
+ 31356, 31297, 31236, 31175, 31113, 31049, 30984, 30918,
+ 30851, 30783, 30713, 30643, 30571, 30498, 30424, 30349,
+ 30272, 30195, 30116, 30036, 29955, 29873, 29790, 29706,
+ 29621, 29534, 29446, 29358, 29268, 29177, 29085, 28992,
+ 28897, 28802, 28706, 28608, 28510, 28410, 28309, 28208,
+ 28105, 28001, 27896, 27790, 27683, 27575, 27466, 27355,
+ 27244, 27132, 27019, 26905, 26789, 26673, 26556, 26437,
+ 26318, 26198, 26077, 25954, 25831, 25707, 25582, 25456,
+ 25329, 25201, 25072, 24942, 24811, 24679, 24546, 24413,
+ 24278, 24143, 24006, 23869, 23731, 23592, 23452, 23311,
+ 23169, 23027, 22883, 22739, 22594, 22448, 22301, 22153,
+ 22004, 21855, 21705, 21554, 21402, 21249, 21096, 20942,
+ 20787, 20631, 20474, 20317, 20159, 20000, 19840, 19680,
+ 19519, 19357, 19194, 19031, 18867, 18702, 18537, 18371,
+ 18204, 18036, 17868, 17699, 17530, 17360, 17189, 17017,
+ 16845, 16672, 16499, 16325, 16150, 15975, 15799, 15623,
+ 15446, 15268, 15090, 14911, 14732, 14552, 14372, 14191,
+ 14009, 13827, 13645, 13462, 13278, 13094, 12909, 12724,
+ 12539, 12353, 12166, 11980, 11792, 11604, 11416, 11227,
+ 11038, 10849, 10659, 10469, 10278, 10087, 9895, 9703,
+ 9511, 9319, 9126, 8932, 8739, 8545, 8351, 8156,
+ 7961, 7766, 7571, 7375, 7179, 6982, 6786, 6589,
+ 6392, 6195, 5997, 5799, 5601, 5403, 5205, 5006,
+ 4807, 4608, 4409, 4210, 4011, 3811, 3611, 3411,
+ 3211, 3011, 2811, 2610, 2410, 2209, 2009, 1808,
+ 1607, 1406, 1206, 1005, 804, 603, 402, 201,
+ 0, -201, -402, -603, -804, -1005, -1206, -1406,
+ -1607, -1808, -2009, -2209, -2410, -2610, -2811, -3011,
+ -3211, -3411, -3611, -3811, -4011, -4210, -4409, -4608,
+ -4807, -5006, -5205, -5403, -5601, -5799, -5997, -6195,
+ -6392, -6589, -6786, -6982, -7179, -7375, -7571, -7766,
+ -7961, -8156, -8351, -8545, -8739, -8932, -9126, -9319,
+ -9511, -9703, -9895, -10087, -10278, -10469, -10659, -10849,
+ -11038, -11227, -11416, -11604, -11792, -11980, -12166, -12353,
+ -12539, -12724, -12909, -13094, -13278, -13462, -13645, -13827,
+ -14009, -14191, -14372, -14552, -14732, -14911, -15090, -15268,
+ -15446, -15623, -15799, -15975, -16150, -16325, -16499, -16672,
+ -16845, -17017, -17189, -17360, -17530, -17699, -17868, -18036,
+ -18204, -18371, -18537, -18702, -18867, -19031, -19194, -19357,
+ -19519, -19680, -19840, -20000, -20159, -20317, -20474, -20631,
+ -20787, -20942, -21096, -21249, -21402, -21554, -21705, -21855,
+ -22004, -22153, -22301, -22448, -22594, -22739, -22883, -23027,
+ -23169, -23311, -23452, -23592, -23731, -23869, -24006, -24143,
+ -24278, -24413, -24546, -24679, -24811, -24942, -25072, -25201,
+ -25329, -25456, -25582, -25707, -25831, -25954, -26077, -26198,
+ -26318, -26437, -26556, -26673, -26789, -26905, -27019, -27132,
+ -27244, -27355, -27466, -27575, -27683, -27790, -27896, -28001,
+ -28105, -28208, -28309, -28410, -28510, -28608, -28706, -28802,
+ -28897, -28992, -29085, -29177, -29268, -29358, -29446, -29534,
+ -29621, -29706, -29790, -29873, -29955, -30036, -30116, -30195,
+ -30272, -30349, -30424, -30498, -30571, -30643, -30713, -30783,
+ -30851, -30918, -30984, -31049, -31113, -31175, -31236, -31297,
+ -31356, -31413, -31470, -31525, -31580, -31633, -31684, -31735,
+ -31785, -31833, -31880, -31926, -31970, -32014, -32056, -32097,
+ -32137, -32176, -32213, -32249, -32284, -32318, -32350, -32382,
+ -32412, -32441, -32468, -32495, -32520, -32544, -32567, -32588,
+ -32609, -32628, -32646, -32662, -32678, -32692, -32705, -32717,
+ -32727, -32736, -32744, -32751, -32757, -32761, -32764, -32766,
+ -32767, -32766, -32764, -32761, -32757, -32751, -32744, -32736,
+ -32727, -32717, -32705, -32692, -32678, -32662, -32646, -32628,
+ -32609, -32588, -32567, -32544, -32520, -32495, -32468, -32441,
+ -32412, -32382, -32350, -32318, -32284, -32249, -32213, -32176,
+ -32137, -32097, -32056, -32014, -31970, -31926, -31880, -31833,
+ -31785, -31735, -31684, -31633, -31580, -31525, -31470, -31413,
+ -31356, -31297, -31236, -31175, -31113, -31049, -30984, -30918,
+ -30851, -30783, -30713, -30643, -30571, -30498, -30424, -30349,
+ -30272, -30195, -30116, -30036, -29955, -29873, -29790, -29706,
+ -29621, -29534, -29446, -29358, -29268, -29177, -29085, -28992,
+ -28897, -28802, -28706, -28608, -28510, -28410, -28309, -28208,
+ -28105, -28001, -27896, -27790, -27683, -27575, -27466, -27355,
+ -27244, -27132, -27019, -26905, -26789, -26673, -26556, -26437,
+ -26318, -26198, -26077, -25954, -25831, -25707, -25582, -25456,
+ -25329, -25201, -25072, -24942, -24811, -24679, -24546, -24413,
+ -24278, -24143, -24006, -23869, -23731, -23592, -23452, -23311,
+ -23169, -23027, -22883, -22739, -22594, -22448, -22301, -22153,
+ -22004, -21855, -21705, -21554, -21402, -21249, -21096, -20942,
+ -20787, -20631, -20474, -20317, -20159, -20000, -19840, -19680,
+ -19519, -19357, -19194, -19031, -18867, -18702, -18537, -18371,
+ -18204, -18036, -17868, -17699, -17530, -17360, -17189, -17017,
+ -16845, -16672, -16499, -16325, -16150, -15975, -15799, -15623,
+ -15446, -15268, -15090, -14911, -14732, -14552, -14372, -14191,
+ -14009, -13827, -13645, -13462, -13278, -13094, -12909, -12724,
+ -12539, -12353, -12166, -11980, -11792, -11604, -11416, -11227,
+ -11038, -10849, -10659, -10469, -10278, -10087, -9895, -9703,
+ -9511, -9319, -9126, -8932, -8739, -8545, -8351, -8156,
+ -7961, -7766, -7571, -7375, -7179, -6982, -6786, -6589,
+ -6392, -6195, -5997, -5799, -5601, -5403, -5205, -5006,
+ -4807, -4608, -4409, -4210, -4011, -3811, -3611, -3411,
+ -3211, -3011, -2811, -2610, -2410, -2209, -2009, -1808,
+ -1607, -1406, -1206, -1005, -804, -603, -402, -201,
+};
#if N_LOUD != 100
ERROR:N_LOUD != 100
#endif
- fixed gst_spectrum_Loudampl[100] = {
-32767, 29203, 26027, 23197, 20674, 18426, 16422, 14636,
- 13044, 11626, 10361, 9234, 8230, 7335, 6537, 5826,
- 5193, 4628, 4125, 3676, 3276, 2920, 2602, 2319,
- 2067, 1842, 1642, 1463, 1304, 1162, 1036, 923,
- 823, 733, 653, 582, 519, 462, 412, 367,
- 327, 292, 260, 231, 206, 184, 164, 146,
- 130, 116, 103, 92, 82, 73, 65, 58,
- 51, 46, 41, 36, 32, 29, 26, 23,
- 20, 18, 16, 14, 13, 11, 10, 9,
- 8, 7, 6, 5, 5, 4, 4, 3,
- 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
+fixed const gst_spectrum_Loudampl[100] = {
+ 32767, 29203, 26027, 23197, 20674, 18426, 16422, 14636,
+ 13044, 11626, 10361, 9234, 8230, 7335, 6537, 5826,
+ 5193, 4628, 4125, 3676, 3276, 2920, 2602, 2319,
+ 2067, 1842, 1642, 1463, 1304, 1162, 1036, 923,
+ 823, 733, 653, 582, 519, 462, 412, 367,
+ 327, 292, 260, 231, 206, 184, 164, 146,
+ 130, 116, 103, 92, 82, 73, 65, 58,
+ 51, 46, 41, 36, 32, 29, 26, 23,
+ 20, 18, 16, 14, 13, 11, 10, 9,
+ 8, 7, 6, 5, 5, 4, 4, 3,
+ 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
diff --git a/gst/spectrum/gstspectrum.c b/gst/spectrum/gstspectrum.c
index 4f01ceff..12762c58 100644
--- a/gst/spectrum/gstspectrum.c
+++ b/gst/spectrum/gstspectrum.c
@@ -1,5 +1,6 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * <2006> Stefan Kost <ensonic@users.sf.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -24,12 +25,33 @@
#include "gstspectrum.h"
+GST_DEBUG_CATEGORY_STATIC (gst_spectrum_debug);
+#define GST_CAT_DEFAULT gst_spectrum_debug
+
/* elementfactory information */
static const GstElementDetails gst_spectrum_details =
GST_ELEMENT_DETAILS ("Spectrum analyzer",
"Filter/Analyzer/Audio",
"Run an FFT on the audio signal, output spectrum data",
- "Erik Walthinsen <omega@cse.ogi.edu>");
+ "Erik Walthinsen <omega@cse.ogi.edu>,"
+ "Stefan Kost <ensonic@users.sf.net>");
+
+static GstStaticPadTemplate sink_template_factory =
+GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "rate = (int) [ 1, MAX ], "
+ "channels = (int) 1, "
+ "endianness = (int) BYTE_ORDER, "
+ "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
+ );
+
+static GstStaticPadTemplate src_template_factory =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS_ANY);
/* Spectrum signals and args */
enum
@@ -48,18 +70,17 @@ enum
static void gst_spectrum_base_init (gpointer g_class);
static void gst_spectrum_class_init (GstSpectrumClass * klass);
static void gst_spectrum_init (GstSpectrum * spectrum);
-
+static void gst_spectrum_dispose (GObject * object);
static void gst_spectrum_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
-static void gst_spectrum_chain (GstPad * pad, GstData * _data);
+static GstFlowReturn gst_spectrum_chain (GstPad * pad, GstBuffer * buffer);
#define fixed short
-int gst_spectrum_fix_fft (fixed fr[], fixed fi[], int m, int inverse);
-void gst_spectrum_fix_loud (fixed loud[], fixed fr[], fixed fi[], int n,
+extern int gst_spectrum_fix_fft (fixed fr[], fixed fi[], int m, int inverse);
+extern void gst_spectrum_fix_loud (fixed loud[], fixed fr[], fixed fi[], int n,
int scale_shift);
-void gst_spectrum_window (fixed fr[], int n);
-
+extern void gst_spectrum_window (fixed fr[], int n);
static GstElementClass *parent_class = NULL;
@@ -83,9 +104,10 @@ gst_spectrum_get_type (void)
(GInstanceInitFunc) gst_spectrum_init,
};
- spectrum_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstSpectrum", &spectrum_info,
- 0);
+ spectrum_type = g_type_register_static (GST_TYPE_ELEMENT, "GstSpectrum",
+ &spectrum_info, 0);
+ GST_DEBUG_CATEGORY_INIT (gst_spectrum_debug, "spectrum", 0,
+ "audio spectrum analyser element");
}
return spectrum_type;
}
@@ -95,113 +117,128 @@ gst_spectrum_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_template_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_template_factory));
gst_element_class_set_details (element_class, &gst_spectrum_details);
}
+
static void
gst_spectrum_class_init (GstSpectrumClass * klass)
{
- GObjectClass *gobject_class;
-
- gobject_class = (GObjectClass *) klass;
+ GObjectClass *gobject_class = (GObjectClass *) klass;
parent_class = g_type_class_peek_parent (klass);
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE)); /* CHECKME */
-
gobject_class->set_property = gst_spectrum_set_property;
+ gobject_class->dispose = gst_spectrum_dispose;
+
+ g_object_class_install_property (gobject_class, ARG_WIDTH,
+ g_param_spec_int ("width", "width", "width",
+ G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE));
+
}
static void
gst_spectrum_init (GstSpectrum * spectrum)
{
- spectrum->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+ spectrum->sinkpad =
+ gst_pad_new_from_static_template (&sink_template_factory, "sink");
gst_element_add_pad (GST_ELEMENT (spectrum), spectrum->sinkpad);
gst_pad_set_chain_function (spectrum->sinkpad, gst_spectrum_chain);
- spectrum->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+
+ spectrum->srcpad =
+ gst_pad_new_from_static_template (&src_template_factory, "src");
gst_element_add_pad (GST_ELEMENT (spectrum), spectrum->srcpad);
spectrum->width = 75;
+ spectrum->base = 8;
+ spectrum->len = 1024;
+
+ spectrum->loud = g_malloc (spectrum->len * sizeof (gint16));
+ spectrum->im = g_malloc (spectrum->len * sizeof (gint16));
+ memset (spectrum->im, 0, spectrum->len * sizeof (gint16));
+ spectrum->re = g_malloc (spectrum->len * sizeof (gint16));
+ memset (spectrum->re, 0, spectrum->len * sizeof (gint16));
+}
+
+static void
+gst_spectrum_dispose (GObject * object)
+{
+ GstSpectrum *spectrum = GST_SPECTRUM (object);
+
+ g_free (spectrum->re);
+ g_free (spectrum->im);
+ g_free (spectrum->loud);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_spectrum_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
- GstSpectrum *spectrum;
-
- g_return_if_fail (GST_IS_SPECTRUM (object));
- spectrum = GST_SPECTRUM (object);
+ GstSpectrum *spectrum = GST_SPECTRUM (object);
switch (prop_id) {
case ARG_WIDTH:
spectrum->width = g_value_get_int (value);
break;
default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-static void
-gst_spectrum_chain (GstPad * pad, GstData * _data)
+static GstFlowReturn
+gst_spectrum_chain (GstPad * pad, GstBuffer * buffer)
{
- GstBuffer *buf = GST_BUFFER (_data);
GstSpectrum *spectrum;
- gint spec_base, spec_len;
- gint16 *re, *im, *loud;
gint16 *samples;
- gint step, pos, i;
+ gint step, pos, num, i;
guchar *spect;
GstBuffer *newbuf;
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-
spectrum = GST_SPECTRUM (GST_OBJECT_PARENT (pad));
+ samples = (gint16 *) GST_BUFFER_DATA (buffer);
+
+ GST_LOG ("buffer-size = %ld", GST_BUFFER_SIZE (buffer));
+
+ /* FIXME:need a gst_adapter */
+ num = GST_BUFFER_SIZE (buffer) / 2;
+ num = MIN (num, spectrum->len);
+
+ for (i = 0; i < num; i++)
+ spectrum->re[i] = (samples[(i * 2)] + samples[(i * 2) + 1]) >> 1;
+
+ gst_spectrum_window (spectrum->re, spectrum->len);
+ gst_spectrum_fix_fft (spectrum->re, spectrum->im, spectrum->base, FALSE);
+ gst_spectrum_fix_loud (spectrum->loud, spectrum->re, spectrum->im,
+ spectrum->len, 0);
- samples = (gint16 *) GST_BUFFER_DATA (buf);
-
- spec_base = 8;
- spec_len = 1024;
-
- im = g_malloc (spec_len * sizeof (gint16));
- g_return_if_fail (im != NULL);
- loud = g_malloc (spec_len * sizeof (gint16));
- g_return_if_fail (loud != NULL);
-
- memset (im, 0, spec_len * sizeof (gint16));
- /*if (spectrum->meta->channels == 2) { */
- re = g_malloc (spec_len * sizeof (gint16));
- for (i = 0; i < spec_len; i++)
- re[i] = (samples[(i * 2)] + samples[(i * 2) + 1]) >> 1;
- /*} else */
- /* re = samples; */
- gst_spectrum_window (re, spec_len);
- gst_spectrum_fix_fft (re, im, spec_base, FALSE);
- gst_spectrum_fix_loud (loud, re, im, spec_len, 0);
- if (re != samples)
- g_free (re);
- g_free (im);
- step = spec_len / (spectrum->width * 2);
+ /* resample to requested width */
+ step = spectrum->len / (spectrum->width * 4); /* <-- shouldn't this be 2 instead of 4? */
spect = (guchar *) g_malloc (spectrum->width);
for (i = 0, pos = 0; i < spectrum->width; i++, pos += step) {
- if (loud[pos] > -60)
- spect[i] = (loud[pos] + 60) / 2;
- else
+ /* > -60 db? */
+ if (spectrum->loud[pos] > -60) {
+ spect[i] = spectrum->loud[pos] + 60;
+ /*
+ if (spect[i] > 15);
+ spect[i] = 15;
+ */
+ } else
+ /* treat as silence */
spect[i] = 0;
-/* if (spect[i] > 15); */
-/* spect[i] = 15; */
}
- g_free (loud);
- gst_buffer_unref (buf);
-/* g_free(samples); */
+ gst_buffer_unref (buffer);
newbuf = gst_buffer_new ();
- g_return_if_fail (newbuf != NULL);
GST_BUFFER_DATA (newbuf) = spect;
GST_BUFFER_SIZE (newbuf) = spectrum->width;
- gst_pad_push (spectrum->srcpad, GST_DATA (newbuf));
+ return gst_pad_push (spectrum->srcpad, newbuf);
}
static gboolean
diff --git a/gst/spectrum/gstspectrum.h b/gst/spectrum/gstspectrum.h
index 8cc546ec..2dbc2242 100644
--- a/gst/spectrum/gstspectrum.h
+++ b/gst/spectrum/gstspectrum.h
@@ -39,7 +39,7 @@ extern "C" {
#define GST_IS_SPECTRUM(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPECTRUM))
#define GST_IS_SPECTRUM_CLASS(obj) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPECTRUM))
+ (G_TYPE_CHECK_CLASS_TYPE((obj),GST_TYPE_SPECTRUM))
typedef struct _GstSpectrum GstSpectrum;
typedef struct _GstSpectrumClass GstSpectrumClass;
@@ -50,6 +50,8 @@ struct _GstSpectrum {
GstPad *sinkpad,*srcpad;
gint width;
+ gint base, len;
+ gint16 *re, *im, *loud;
};
struct _GstSpectrumClass {