/* GStreamer Tuner * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> * * tunerchannel.c: tuner channel object design * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "tunerchannel.h" /** * SECTION:gsttunerchannel * @short_description: A channel from an element implementing the #GstTuner * interface. * * <refsect2> * <para>The #GstTunerChannel object is provided by an element implementing * the #GstTuner interface. * </para> * <para> * GstTunerChannel provides a name and flags to determine the type and * capabilities of the channel. If the GST_TUNER_CHANNEL_FREQUENCY flag is * set, then the channel also information about the minimum and maximum * frequency, and range of the reported signal strength. * </para> * </refsect2> */ enum { /* FILL ME */ SIGNAL_FREQUENCY_CHANGED, SIGNAL_SIGNAL_CHANGED, LAST_SIGNAL }; static void gst_tuner_channel_class_init (GstTunerChannelClass * klass); static void gst_tuner_channel_init (GstTunerChannel * channel); static void gst_tuner_channel_dispose (GObject * object); static GObjectClass *parent_class = NULL; static guint signals[LAST_SIGNAL] = { 0 }; GType gst_tuner_channel_get_type (void) { static GType gst_tuner_channel_type = 0; if (!gst_tuner_channel_type) { static const GTypeInfo tuner_channel_info = { sizeof (GstTunerChannelClass), NULL, NULL, (GClassInitFunc) gst_tuner_channel_class_init, NULL, NULL, sizeof (GstTunerChannel), 0, (GInstanceInitFunc) gst_tuner_channel_init, NULL }; gst_tuner_channel_type = g_type_register_static (G_TYPE_OBJECT, "GstTunerChannel", &tuner_channel_info, 0); } return gst_tuner_channel_type; } static void gst_tuner_channel_class_init (GstTunerChannelClass * klass) { GObjectClass *object_klass = (GObjectClass *) klass; parent_class = g_type_class_peek_parent (klass); /** * GstTunerChannel::frequency-changed: * @tunerchannel: The #GstTunerChannel * @frequency: The new frequency (an unsigned long) * * Reports that the current frequency has changed. */ signals[SIGNAL_FREQUENCY_CHANGED] = g_signal_new ("frequency-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstTunerChannelClass, frequency_changed), NULL, NULL, g_cclosure_marshal_VOID__ULONG, G_TYPE_NONE, 1, G_TYPE_ULONG); /** * GstTunerChannel::signal-changed: * @tunerchannel: The #GstTunerChannel * @signal: The new signal strength (an integer) * * Reports that the signal strength has changed. * * See Also: gst_tuner_signal_strength() */ signals[SIGNAL_SIGNAL_CHANGED] = g_signal_new ("signal-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstTunerChannelClass, signal_changed), NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); object_klass->dispose = gst_tuner_channel_dispose; } static void gst_tuner_channel_init (GstTunerChannel * channel) { channel->label = NULL; channel->flags = 0; channel->min_frequency = channel->max_frequency = 0; channel->min_signal = channel->max_signal = 0; } static void gst_tuner_channel_dispose (GObject * object) { GstTunerChannel *channel = GST_TUNER_CHANNEL (object); if (channel->label) { g_free (channel->label); channel->label = NULL; } if (parent_class->dispose) parent_class->dispose (object); }