diff options
Diffstat (limited to 'src/polypmixer.c')
| -rw-r--r-- | src/polypmixer.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/polypmixer.c b/src/polypmixer.c new file mode 100644 index 0000000..dfc8166 --- /dev/null +++ b/src/polypmixer.c @@ -0,0 +1,194 @@ +/* $Id$ */ + +/*** + This file is part of gst-polyp. + + gst-polyp is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + gst-polyp 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with gst-polyp; 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 <string.h> +#include <stdio.h> + +#include "polypmixer.h" + +enum { + ARG_SERVER = 1, + ARG_DEVICE, + ARG_DEVICE_NAME +}; + +GST_DEBUG_CATEGORY_EXTERN(polyp_debug); +#define GST_CAT_DEFAULT polyp_debug + +GST_IMPLEMENT_POLYPMIXER_CTRL_METHODS(GstPolypMixer, gst_polypmixer) +GST_BOILERPLATE_WITH_INTERFACE(GstPolypMixer, gst_polypmixer, GstElement, GST_TYPE_ELEMENT, GstMixer, GST_TYPE_MIXER, gst_polypmixer) + +static void gst_polypmixer_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); +static void gst_polypmixer_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); +static void gst_polypmixer_finalize(GObject *object); +static GstStateChangeReturn gst_polypmixer_change_state(GstElement *element, GstStateChange transition); + +static void gst_polypmixer_base_init(gpointer g_class) { + + static const GstElementDetails details = + GST_ELEMENT_DETAILS( + "Polypaudio Mixer", + "Generic/Audio", + "Control sound input and output levels for Polypaudio", + "Lennart Poettering"); + + gst_element_class_set_details(GST_ELEMENT_CLASS(g_class), &details); +} + +static void gst_polypmixer_class_init(GstPolypMixerClass *g_class) { + GstElementClass *gstelement_class = GST_ELEMENT_CLASS(g_class); + GObjectClass *gobject_class = G_OBJECT_CLASS(g_class); + + gstelement_class->change_state = GST_DEBUG_FUNCPTR(gst_polypmixer_change_state); + + gobject_class->finalize = GST_DEBUG_FUNCPTR(gst_polypmixer_finalize); + gobject_class->get_property = GST_DEBUG_FUNCPTR(gst_polypmixer_get_property); + gobject_class->set_property = GST_DEBUG_FUNCPTR(gst_polypmixer_set_property); + + g_object_class_install_property( + gobject_class, + ARG_SERVER, + g_param_spec_string("server", "Server", "The Polypaudio server to connect to", NULL, G_PARAM_READWRITE)); + + g_object_class_install_property( + gobject_class, + ARG_DEVICE, + g_param_spec_string("device", "Sink/Source", "The Polypaudio sink or source to control", NULL, G_PARAM_READWRITE)); + + g_object_class_install_property( + gobject_class, + ARG_DEVICE_NAME, + g_param_spec_string("device-name", "Device name", "Human-readable name of the sound device", NULL, G_PARAM_READABLE)); +} + +static void gst_polypmixer_init(GstPolypMixer *this, GstPolypMixerClass *g_class) { + this->mixer = NULL; + this->server = NULL; + this->device = NULL; +} + +static void gst_polypmixer_finalize(GObject *object) { + GstPolypMixer *this = GST_POLYPMIXER(object); + + g_free(this->server); + g_free(this->device); + + if (this->mixer) { + gst_polypmixer_ctrl_free(this->mixer); + this->mixer = NULL; + } + + G_OBJECT_CLASS(parent_class)->finalize(object); +} + +static void gst_polypmixer_set_property( + GObject * object, + guint prop_id, + const GValue * value, + GParamSpec * pspec) { + + GstPolypMixer *this = GST_POLYPMIXER(object); + + switch (prop_id) { + case ARG_SERVER: + g_free(this->server); + this->server = g_value_dup_string(value); + break; + + case ARG_DEVICE: + g_free(this->device); + this->device = g_value_dup_string(value); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); + break; + } +} + +static void gst_polypmixer_get_property( + GObject * object, + guint prop_id, + GValue * value, + GParamSpec * pspec) { + + GstPolypMixer *this = GST_POLYPMIXER(object); + + switch(prop_id) { + + case ARG_SERVER: + g_value_set_string(value, this->server); + break; + + case ARG_DEVICE: + g_value_set_string(value, this->device); + break; + + case ARG_DEVICE_NAME: + + if (this->mixer) { + char *t = g_strdup_printf("[%s] %s", this->mixer->name, this->mixer->description); + g_value_set_string(value, t); + g_free(t); + } else + g_value_set_string(value, NULL); + + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); + break; + } +} + +static GstStateChangeReturn gst_polypmixer_change_state(GstElement *element, GstStateChange transition) { + GstPolypMixer *this = GST_POLYPMIXER(element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + + if (!this->mixer) + this->mixer = gst_polypmixer_ctrl_new(this->server, this->device); + + break; + + case GST_STATE_CHANGE_READY_TO_NULL: + + if (this->mixer) { + gst_polypmixer_ctrl_free(this->mixer); + this->mixer = NULL; + } + + break; + + default: + ; + } + + if (GST_ELEMENT_CLASS(parent_class)->change_state) + return GST_ELEMENT_CLASS(parent_class)->change_state(element, transition); + + return GST_STATE_CHANGE_SUCCESS; +} |