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author | Tim-Philipp Müller <tim@centricular.net> | 2005-07-21 16:37:30 +0000 |
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committer | Tim-Philipp Müller <tim@centricular.net> | 2005-07-21 16:37:30 +0000 |
commit | 2f99c988d85da3bd6f917324312de6f60152ccc6 (patch) | |
tree | f7866005b7d6e7ae8f1518e1b290457aafa243c2 /gst/spectrum/demo-osssrc.c | |
parent | 59a14a7a1037425fa0f90f648e44f2add10d7f6b (diff) | |
download | gst-plugins-bad-2f99c988d85da3bd6f917324312de6f60152ccc6.tar.gz gst-plugins-bad-2f99c988d85da3bd6f917324312de6f60152ccc6.tar.bz2 gst-plugins-bad-2f99c988d85da3bd6f917324312de6f60152ccc6.zip |
gst/spectrum/demo-osssrc.c: Use 32 for the graph since it's the dimension of the drawing window; use proper buffersiz...
Original commit message from CVS:
Reviewed by: Tim-Philipp Müller <tim at centricular dot net>
* gst/spectrum/demo-osssrc.c: (spectrum_chain), (main):
Use 32 for the graph since it's the dimension of the
drawing window; use proper buffersize (bytes != samples);
connect delete-event to gtk_main_quit.
* gst/spectrum/gstspectrum.c: (gst_spectrum_class_init),
(gst_spectrum_chain):
Specify max. width of 1024 in property param spec;
spec_base must be 10 instead of 8, since it's the
exponent of the N pased to the FFT (2^10=1024);
memcpy the buffer in the mono case (fixes a crash).
Diffstat (limited to 'gst/spectrum/demo-osssrc.c')
-rw-r--r-- | gst/spectrum/demo-osssrc.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/gst/spectrum/demo-osssrc.c b/gst/spectrum/demo-osssrc.c index b51e8c2a..0312df87 100644 --- a/gst/spectrum/demo-osssrc.c +++ b/gst/spectrum/demo-osssrc.c @@ -15,12 +15,12 @@ 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 }; + guchar *data = GST_BUFFER_DATA (buf); + GdkRectangle rect = { 0, 0, GST_BUFFER_SIZE (buf), 32 }; 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); + TRUE, 0, 0, GST_BUFFER_SIZE (buf), 32); for (i = 0; i < GST_BUFFER_SIZE (buf); i++) { gdk_draw_rectangle (drawingarea->window, drawingarea->style->white_gc, TRUE, i, 32 - data[i], 1, data[i]); @@ -33,7 +33,7 @@ main (int argc, char *argv[]) { GstElement *bin; GstElement *src, *spectrum, *sink; - + GstCaps *filtercaps; GtkWidget *appwindow; gst_init (&argc, &argv); @@ -42,7 +42,8 @@ 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), "buffersize", (gulong) 1024 * sizeof (gint16), + NULL); spectrum = gst_element_factory_make ("spectrum", "spectrum"); g_object_set (G_OBJECT (spectrum), "width", 256, NULL); sink = gst_element_factory_make ("fakesink", "sink"); @@ -50,9 +51,18 @@ main (int argc, char *argv[]) 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); + + filtercaps = + gst_caps_new_simple ("audio/x-raw-int", "rate", G_TYPE_INT, 11025, NULL); + if (!gst_element_link_filtered (src, spectrum, filtercaps)) + g_error ("Linking source to spectrum failed\n"); + gst_caps_free (filtercaps); + if (!gst_element_link (spectrum, sink)) + g_error ("Linking spectrum to sink failed\n"); appwindow = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (appwindow, "delete-event", G_CALLBACK (gtk_main_quit), + NULL); drawingarea = gtk_drawing_area_new (); gtk_drawing_area_size (GTK_DRAWING_AREA (drawingarea), 256, 32); gtk_container_add (GTK_CONTAINER (appwindow), drawingarea); |