diff -r 000000000000 -r 0e761a78d257 gst_plugins_base/gst-libs/gst/interfaces/mixertrack.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/gst-libs/gst/interfaces/mixertrack.c Thu Dec 17 08:53:32 2009 +0200 @@ -0,0 +1,249 @@ +/* GStreamer Mixer + * Copyright (C) 2003 Ronald Bultje + * + * mixertrack.c: mixer track 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 "mixertrack.h" +#if 0 +enum +{ + /* FILL ME */ + SIGNAL_VOLUME_CHANGED, + SIGNAL_RECORD_TOGGLED, + SIGNAL_MUTE_TOGGLED, + LAST_SIGNAL +}; +static guint signals[LAST_SIGNAL] = { 0 }; +#endif + +enum +{ + ARG_0, + ARG_LABEL, + ARG_UNTRANSLATED_LABEL, + ARG_MIN_VOLUME, + ARG_MAX_VOLUME, + ARG_FLAGS, + ARG_NUM_CHANNELS +}; + +static void gst_mixer_track_class_init (GstMixerTrackClass * klass); +static void gst_mixer_track_init (GstMixerTrack * mixer); +static void gst_mixer_track_dispose (GObject * object); + +static void gst_mixer_track_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static void gst_mixer_track_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); + +static GObjectClass *parent_class = NULL; +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + + +GType +gst_mixer_track_get_type (void) +{ + static GType gst_mixer_track_type = 0; + + if (!gst_mixer_track_type) { + static const GTypeInfo mixer_track_info = { + sizeof (GstMixerTrackClass), + NULL, + NULL, + (GClassInitFunc) gst_mixer_track_class_init, + NULL, + NULL, + sizeof (GstMixerTrack), + 0, + (GInstanceInitFunc) gst_mixer_track_init, + NULL + }; + + gst_mixer_track_type = + g_type_register_static (G_TYPE_OBJECT, + "GstMixerTrack", &mixer_track_info, 0); + } + + return gst_mixer_track_type; +} + +static void +gst_mixer_track_class_init (GstMixerTrackClass * klass) +{ + GObjectClass *object_klass = G_OBJECT_CLASS (klass); + + parent_class = g_type_class_peek_parent (klass); + + object_klass->get_property = gst_mixer_track_get_property; + object_klass->set_property = gst_mixer_track_set_property; + + g_object_class_install_property (object_klass, ARG_LABEL, + g_param_spec_string ("label", "Track label", + "The label assigned to the track (may be translated)", NULL, + G_PARAM_READABLE)); + + /** + * GstMixerTrack:untranslated-label + * + * The untranslated label of the mixer track, if available. Mixer track + * implementations must set this at construct time. Applications may find + * this useful to determine icons for various kind of tracks. However, + * applications mustn't make any assumptions about the naming of tracks, + * the untranslated labels are purely informational and may change. + * + * Since: 0.10.13 + **/ + g_object_class_install_property (object_klass, ARG_UNTRANSLATED_LABEL, + g_param_spec_string ("untranslated-label", "Untranslated track label", + "The untranslated label assigned to the track (since 0.10.13)", + NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); + + g_object_class_install_property (object_klass, ARG_MIN_VOLUME, + g_param_spec_int ("min_volume", "Minimum volume level", + "The minimum possible volume level", G_MININT, G_MAXINT, + 0, G_PARAM_READABLE)); + + g_object_class_install_property (object_klass, ARG_MAX_VOLUME, + g_param_spec_int ("max_volume", "Maximum volume level", + "The maximum possible volume level", G_MININT, G_MAXINT, + 0, G_PARAM_READABLE)); + + g_object_class_install_property (object_klass, ARG_FLAGS, + g_param_spec_uint ("flags", "Flags", + "Flags indicating the type of mixer track", + 0, G_MAXUINT, 0, G_PARAM_READABLE)); + + g_object_class_install_property (object_klass, ARG_NUM_CHANNELS, + g_param_spec_int ("num_channels", "Number of channels", + "The number of channels contained within the track", + 0, G_MAXINT, 0, G_PARAM_READABLE)); + +#if 0 + signals[SIGNAL_RECORD_TOGGLED] = + g_signal_new ("record_toggled", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstMixerTrackClass, + record_toggled), + NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN, + G_TYPE_NONE, 1, G_TYPE_BOOLEAN); + signals[SIGNAL_MUTE_TOGGLED] = + g_signal_new ("mute_toggled", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstMixerTrackClass, + mute_toggled), + NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN, + G_TYPE_NONE, 1, G_TYPE_BOOLEAN); + signals[SIGNAL_VOLUME_CHANGED] = + g_signal_new ("volume_changed", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstMixerTrackClass, + volume_changed), + NULL, NULL, g_cclosure_marshal_VOID__POINTER, + G_TYPE_NONE, 1, G_TYPE_POINTER); +#endif + + object_klass->dispose = gst_mixer_track_dispose; +} + +static void +gst_mixer_track_init (GstMixerTrack * mixer_track) +{ + mixer_track->label = NULL; + mixer_track->min_volume = mixer_track->max_volume = 0; + mixer_track->flags = 0; + mixer_track->num_channels = 0; +} + +/* FIXME 0.11: move this as a member into the mixer track structure */ +#define MIXER_TRACK_OBJECT_DATA_KEY_UNTRANSLATED_LABEL "gst-mixer-track-ulabel" + +static void +gst_mixer_track_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) +{ + GstMixerTrack *mixer_track; + + mixer_track = GST_MIXER_TRACK (object); + + switch (prop_id) { + case ARG_LABEL: + g_value_set_string (value, mixer_track->label); + break; + case ARG_UNTRANSLATED_LABEL: + g_value_set_string (value, + (const gchar *) g_object_get_data (G_OBJECT (mixer_track), + MIXER_TRACK_OBJECT_DATA_KEY_UNTRANSLATED_LABEL)); + break; + case ARG_MIN_VOLUME: + g_value_set_int (value, mixer_track->min_volume); + break; + case ARG_MAX_VOLUME: + g_value_set_int (value, mixer_track->max_volume); + break; + case ARG_FLAGS: + g_value_set_uint (value, (guint32) mixer_track->flags); + break; + case ARG_NUM_CHANNELS: + g_value_set_int (value, mixer_track->num_channels); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_mixer_track_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstMixerTrack *mixer_track; + + mixer_track = GST_MIXER_TRACK (object); + + switch (prop_id) { + case ARG_UNTRANSLATED_LABEL: + g_object_set_data_full (G_OBJECT (mixer_track), + MIXER_TRACK_OBJECT_DATA_KEY_UNTRANSLATED_LABEL, + g_value_dup_string (value), (GDestroyNotify) g_free); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_mixer_track_dispose (GObject * object) +{ + GstMixerTrack *channel = GST_MIXER_TRACK (object); + + if (channel->label) { + g_free (channel->label); + channel->label = NULL; + } + + if (parent_class->dispose) + parent_class->dispose (object); +}