From 76a3fd7100246d47d3dcf08cd1e3370adca244af Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Thu, 6 Sep 2007 07:21:22 +0000 Subject: Port GstSpectrum to GstAudioFilter and libgstfft, add support for int32, float and double, use floats for the message... Original commit message from CVS: * configure.ac: * gst/spectrum/Makefile.am: * gst/spectrum/demo-audiotest.c: (draw_spectrum), (message_handler), (main): * gst/spectrum/demo-osssrc.c: (draw_spectrum), (message_handler): * gst/spectrum/gstspectrum.c: (gst_spectrum_base_init), (gst_spectrum_class_init), (gst_spectrum_init), (gst_spectrum_dispose), (gst_spectrum_set_property), (gst_spectrum_get_property), (gst_spectrum_start), (gst_spectrum_setup), (gst_spectrum_message_new), (gst_spectrum_transform_ip): * gst/spectrum/gstspectrum.h: Port GstSpectrum to GstAudioFilter and libgstfft, add support for int32, float and double, use floats for the message contents, average all FFTs done in one interval for better results, use a better windowing function, allow posting the phase in the message and actually do an FFT with the requested number of bands instead of interpolating. * tests/check/elements/spectrum.c: (GST_START_TEST), (spectrum_suite): Improve the units tests by checking for a 11025Hz sine wave and add unit tests for all 4 supported sample types. --- gst/spectrum/demo-osssrc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'gst/spectrum/demo-osssrc.c') diff --git a/gst/spectrum/demo-osssrc.c b/gst/spectrum/demo-osssrc.c index b71843e6..6c106b26 100644 --- a/gst/spectrum/demo-osssrc.c +++ b/gst/spectrum/demo-osssrc.c @@ -43,7 +43,7 @@ on_window_destroy (GtkObject * object, gpointer user_data) /* draw frequency spectrum as a bunch of bars */ static void -draw_spectrum (guchar * data) +draw_spectrum (gfloat * data) { gint i; GdkRectangle rect = { 0, 0, SPECT_WIDTH, SPECT_HEIGHT }; @@ -70,15 +70,15 @@ message_handler (GstBus * bus, GstMessage * message, gpointer data) const gchar *name = gst_structure_get_name (s); if (strcmp (name, "spectrum") == 0) { - guchar spect[SPECT_BANDS]; + gfloat spect[SPECT_BANDS]; const GValue *list; const GValue *value; guint i; - list = gst_structure_get_value (s, "spectrum"); + list = gst_structure_get_value (s, "magnitude"); for (i = 0; i < SPECT_BANDS; ++i) { value = gst_value_list_get_value (list, i); - spect[i] = g_value_get_uchar (value); + spect[i] = g_value_get_float (value); } draw_spectrum (spect); } -- cgit v1.2.1