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examples/dynparams/Makefile.am: Move demo-dparams from gst/sine to examples/dynparams. Examples do not belong inters...
Original commit message from CVS: * examples/dynparams/Makefile.am: Move demo-dparams from gst/sine to examples/dynparams. Examples do not belong interspersed with source code. * examples/dynparams/demo-dparams.c: * gst/sine/Makefile.am: * gst/sine/demo-dparams.c:
This commit is contained in:
David Schleef
parent
ab06cc8f10
commit
b3011faca4
6 changed files with 177 additions and 10 deletions
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@ -1,3 +1,12 @@
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2005-04-25 David Schleef <ds@schleef.org>
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* examples/dynparams/Makefile.am: Move demo-dparams from gst/sine
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to examples/dynparams. Examples do not belong interspersed with
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source code.
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* examples/dynparams/demo-dparams.c:
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* gst/sine/Makefile.am:
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* gst/sine/demo-dparams.c:
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2005-04-25 David Schleef <ds@schleef.org>
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Don't use GST_PLUGIN_LDFLAGS, because these aren't plugins.
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@ -1,7 +1,10 @@
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examples = filter
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examples = filter demo-dparams
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noinst_PROGRAMS = $(examples)
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# we have nothing but apps here, we can do this safely
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LIBS = $(GST_LIBS) $(GTK_LIBS) $(GST_CONTROL_LIBS)
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AM_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
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@ -8,11 +8,3 @@ libgstsinesrc_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = gstsinesrc.h
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if HAVE_GTK
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noinst_PROGRAMS = demo_dparams
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endif
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demo_dparams_SOURCES = demo-dparams.c
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## putting GTK in front solves a bad compilation problem
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demo_dparams_CFLAGS = $(GTK_CFLAGS) $(GST_CFLAGS)
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demo_dparams_LDFLAGS = $(GST_LIBS) $(GTK_LIBS) $(GST_CONTROL_LIBS)
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@ -1,7 +1,10 @@
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examples = filter
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examples = filter demo-dparams
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noinst_PROGRAMS = $(examples)
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# we have nothing but apps here, we can do this safely
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LIBS = $(GST_LIBS) $(GTK_LIBS) $(GST_CONTROL_LIBS)
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AM_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
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160
tests/old/examples/dynparams/demo-dparams.c
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160
tests/old/examples/dynparams/demo-dparams.c
Normal file
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@ -0,0 +1,160 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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#include <gst/control/control.h>
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#define ZERO(mem) memset(&mem, 0, sizeof(mem))
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static gint
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quit_live (GtkWidget * window, GdkEventAny * e, gpointer data)
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{
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gtk_main_quit ();
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return FALSE;
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}
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static void
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dynparm_log_value_changed (GtkAdjustment * adj, GstDParam * dparam)
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{
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gdouble value;
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g_return_if_fail (dparam != NULL);
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g_return_if_fail (GST_IS_DPARAM (dparam));
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value = exp (adj->value);
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g_print ("setting value to %f\n", value);
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g_object_set (G_OBJECT (dparam), "value_double", value, NULL);
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}
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static void
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dynparm_value_changed (GtkAdjustment * adj, GstDParam * dparam)
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{
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g_return_if_fail (dparam != NULL);
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g_return_if_fail (GST_IS_DPARAM (dparam));
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g_print ("setting value to %f\n", adj->value);
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g_object_set (G_OBJECT (dparam), "value_double", (gdouble) adj->value, NULL);
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window;
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GtkWidget *hbox;
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GtkAdjustment *volume_adj;
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GtkAdjustment *freq_adj;
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GtkWidget *volume_slider;
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GtkWidget *freq_slider;
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GstElement *thread, *sinesrc, *volfilter, *audiosink;
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GstDParamManager *dpman;
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GstDParam *volume;
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GstDParam *freq;
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GParamSpecDouble *spec;
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gtk_init (&argc, &argv);
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gst_init (&argc, &argv);
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gst_control_init (&argc, &argv);
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/***** construct the pipeline *****/
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g_print ("creating elements\n");
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thread = gst_thread_new ("live-example");
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sinesrc = gst_element_factory_make ("sinesrc", "sine-source");
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audiosink = gst_element_factory_make (DEFAULT_AUDIOSINK, "sound-sink");
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volfilter = gst_element_factory_make ("volume", "volume-filter");
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gst_bin_add_many (GST_BIN (thread), sinesrc, volfilter, audiosink, NULL);
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gst_element_link_many (sinesrc, volfilter, audiosink, NULL);
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/* this breaks with current alsa oss compat lib */
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g_object_set (G_OBJECT (audiosink), "fragment", 0x00180008, NULL);
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g_object_set (G_OBJECT (audiosink), "sync", FALSE, NULL);
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g_object_set (G_OBJECT (sinesrc), "samplesperbuffer", 1024, NULL);
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/***** set up the GUI *****/
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), 80, 400);
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g_signal_connect (window, "delete_event", GTK_SIGNAL_FUNC (quit_live), NULL);
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hbox = gtk_hbox_new (TRUE, 0);
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gtk_container_add (GTK_CONTAINER (window), hbox);
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/***** set up the dparams *****/
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freq = gst_dpsmooth_new (G_TYPE_DOUBLE);
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g_object_set (G_OBJECT (freq), "update_period", 2000000LL, NULL);
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/* this defines the maximum slope that this *
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* param can change. This says that in 50ms *
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* the value can change by a maximum of one semitone *
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* (the log of one semitone is 0.693) */
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g_object_set (G_OBJECT (freq), "slope_delta_double", 0.693, NULL);
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g_object_set (G_OBJECT (freq), "slope_time", 50000000LL, NULL);
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dpman = gst_dpman_get_manager (sinesrc);
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if (!gst_dpman_attach_dparam (dpman, "freq", freq))
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g_assert_not_reached ();
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gst_dpman_set_mode (dpman, "asynchronous");
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spec = (GParamSpecDouble *) gst_dpman_get_param_spec (dpman, "freq");
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freq_adj = (GtkAdjustment *) gtk_adjustment_new (log (spec->default_value),
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log (spec->minimum), log (spec->maximum), 0.1, 0.01, 0.01);
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freq_slider = gtk_vscale_new (freq_adj);
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gtk_scale_set_digits (GTK_SCALE (freq_slider), 2);
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gtk_box_pack_start (GTK_BOX (hbox), freq_slider, TRUE, TRUE, 0);
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volume = gst_dpsmooth_new (G_TYPE_DOUBLE);
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g_object_set (G_OBJECT (volume), "update_period", 2000000LL, NULL);
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/* this defines the maximum slope that this *
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* param can change. This says that in 50ms *
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* the value can change from 0.0 to 1.0 */
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g_object_set (G_OBJECT (volume), "slope_delta_double", 0.1, NULL);
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g_object_set (G_OBJECT (volume), "slope_time", 50000000LL, NULL);
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dpman = gst_dpman_get_manager (volfilter);
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if (!gst_dpman_attach_dparam (dpman, "volume", volume))
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g_assert_not_reached ();
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gst_dpman_set_mode (dpman, "asynchronous");
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g_object_set (G_OBJECT (volfilter), "mute", FALSE, NULL);
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spec = (GParamSpecDouble *) gst_dpman_get_param_spec (dpman, "volume");
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volume_adj =
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(GtkAdjustment *) gtk_adjustment_new (spec->default_value, 0.0, 1.2, 0.1,
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0.01, 0.01);
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volume_slider = gtk_vscale_new (volume_adj);
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gtk_scale_set_digits (GTK_SCALE (volume_slider), 2);
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gtk_box_pack_start (GTK_BOX (hbox), volume_slider, TRUE, TRUE, 0);
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/***** set up the handlers and such *****/
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/*gtk_signal_connect(volume_adj,"value-changed",GTK_SIGNAL_FUNC(volume_changed),sinesrc); */
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g_signal_connect (volume_adj, "value-changed",
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GTK_SIGNAL_FUNC (dynparm_value_changed), volume);
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g_signal_connect (freq_adj, "value-changed",
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GTK_SIGNAL_FUNC (dynparm_log_value_changed), freq);
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gtk_adjustment_value_changed (volume_adj);
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gtk_adjustment_value_changed (freq_adj);
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g_print ("starting pipeline\n");
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/***** start everything up *****/
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gst_element_set_state (thread, GST_STATE_PLAYING);
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gtk_widget_show_all (window);
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gtk_main ();
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return 0;
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}
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