Commit 65504292 authored by Ronald S. Bultje's avatar Ronald S. Bultje
Browse files

gst-libs/gst/gconf/gconf.*: Fix some Andy Problem [tm].

Original commit message from CVS:
* gst-libs/gst/gconf/gconf.c:
* gst-libs/gst/gconf/gconf.h:
Fix some Andy Problem [tm].
parent 7d10d866
2005-08-05 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst-libs/gst/gconf/gconf.c:
* gst-libs/gst/gconf/gconf.h:
Fix some Andy Problem [tm].
2005-08-04 Andy Wingo <wingo@pobox.com>
 
* gst/videoscale/gstvideoscale.c (gst_videoscale_get_size):
......
/* GStreamer
* Copyright (C) <2002> Thomas Vander Stichele <thomas@apestaart.org>
*
* 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.
*/
/*
* this library handles interaction with GConf
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gconf.h"
#ifndef GST_GCONF_DIR
#error "GST_GCONF_DIR is not defined !"
#endif
static GConfClient *_gst_gconf_client = NULL; /* GConf connection */
/* internal functions */
static GConfClient *
gst_gconf_get_client (void)
{
if (!_gst_gconf_client)
_gst_gconf_client = gconf_client_get_default ();
return _gst_gconf_client;
}
/* go through a bin, finding the one pad that is unconnected in the given
* * direction, and return that pad */
static GstPad *
gst_bin_find_unconnected_pad (GstBin * bin, GstPadDirection direction)
{
GstPad *pad = NULL;
GList *elements = NULL;
const GList *pads = NULL;
GstElement *element = NULL;
GST_LOCK (bin);
elements = bin->children;
/* traverse all elements looking for unconnected pads */
while (elements && pad == NULL) {
element = GST_ELEMENT (elements->data);
GST_LOCK (element);
pads = element->pads;
while (pads) {
GstPad *testpad = GST_PAD (pads->data);
/* check if the direction matches */
if (GST_PAD_DIRECTION (testpad) == direction) {
GST_LOCK (testpad);
if (GST_PAD_PEER (testpad) == NULL) {
GST_UNLOCK (testpad);
/* found it ! */
pad = testpad;
break;
}
GST_UNLOCK (testpad);
}
pads = g_list_next (pads);
}
GST_UNLOCK (element);
elements = g_list_next (elements);
}
GST_UNLOCK (bin);
return pad;
}
/* external functions */
/**
* gst_gconf_get_string:
* @key: a #gchar corresponding to the key you want to get.
*
* Get GConf key @key's string value.
*
* Returns: a newly allocated #gchar string containing @key's value,
* or NULL in the case of an error..
*/
gchar *
gst_gconf_get_string (const gchar * key)
{
GError *error = NULL;
gchar *value = NULL;
gchar *full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key);
value = gconf_client_get_string (gst_gconf_get_client (), full_key, &error);
g_free (full_key);
if (error) {
g_warning ("gst_gconf_get_string: error: %s\n", error->message);
g_error_free (error);
return NULL;
}
return value;
}
/**
* gst_gconf_set_string:
* @key: a #gchar corresponding to the key you want to set.
* @value: a #gchar containing key value.
*
* Set GConf key @key to string value @value.
*/
void
gst_gconf_set_string (const gchar * key, const gchar * value)
{
GError *error = NULL;
gchar *full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key);
gconf_client_set_string (gst_gconf_get_client (), full_key, value, &error);
if (error) {
GST_ERROR ("gst_gconf_set_string: error: %s\n", error->message);
g_error_free (error);
}
g_free (full_key);
}
/**
* gst_gconf_render_bin_from_description:
* @description: a #gchar string describing the bin.
*
* Render bin from description @description.
*
* Returns: a #GstElement containing the rendered bin.
*/
GstElement *
gst_gconf_render_bin_from_description (const gchar * description)
{
GstElement *bin = NULL;
GstPad *pad = NULL;
GError *error = NULL;
gchar *desc = NULL;
/* parse the pipeline to a bin */
desc = g_strdup_printf ("bin.( %s )", description);
bin = GST_ELEMENT (gst_parse_launch (desc, &error));
g_free (desc);
if (error) {
GST_ERROR ("gstgconf: error parsing pipeline %s\n%s\n",
description, error->message);
g_error_free (error);
return NULL;
}
/* find pads and ghost them if necessary */
if ((pad = gst_bin_find_unconnected_pad (GST_BIN (bin), GST_PAD_SRC))) {
gst_element_add_pad (bin, gst_ghost_pad_new ("src", pad));
}
if ((pad = gst_bin_find_unconnected_pad (GST_BIN (bin), GST_PAD_SINK))) {
gst_element_add_pad (bin, gst_ghost_pad_new ("sink", pad));
}
return bin;
}
/**
* gst_gconf_render_bin_from_key:
* @key: a #gchar string corresponding to a GConf key.
*
* Render bin from GConf key @key.
*
* Returns: a #GstElement containing the rendered bin.
*/
GstElement *
gst_gconf_render_bin_from_key (const gchar * key)
{
GstElement *bin = NULL;
gchar *value;
value = gst_gconf_get_string (key);
if (value)
bin = gst_gconf_render_bin_from_description (value);
g_free (value);
return bin;
}
/**
* gst_gconf_get_default_audio_sink:
*
* Render audio output bin from GStreamer GConf key : "default/audiosink".
* If key is invalid, the default audio sink for the platform is used
* (typically osssink or sunaudiosink).
*
* Returns: a #GstElement containing the audio output bin, or NULL if
* everything failed.
*/
GstElement *
gst_gconf_get_default_audio_sink (void)
{
GstElement *ret = gst_gconf_render_bin_from_key ("default/audiosink");
if (!ret) {
ret = gst_element_factory_make (DEFAULT_AUDIOSINK, NULL);
if (!ret)
g_warning ("No GConf default audio sink key and %s doesn't work",
DEFAULT_AUDIOSINK);
}
return ret;
}
/**
* gst_gconf_get_default_video_sink:
*
* Render video output bin from GStreamer GConf key : "default/videosink".
* If key is invalid, the default video sink for the platform is used
* (typically xvimagesink or ximagesink).
*
* Returns: a #GstElement containing the video output bin, or NULL if
* everything failed.
*/
GstElement *
gst_gconf_get_default_video_sink (void)
{
GstElement *ret = gst_gconf_render_bin_from_key ("default/videosink");
if (!ret) {
ret = gst_element_factory_make (DEFAULT_VIDEOSINK, NULL);
if (!ret)
g_warning ("No GConf default video sink key and %s doesn't work",
DEFAULT_VIDEOSINK);
}
return ret;
}
/**
* gst_gconf_get_default_audio_src:
*
* Render audio acquisition bin from GStreamer GConf key : "default/audiosrc".
* If key is invalid, the default audio source for the plaform is used.
* (typically osssrc or sunaudiosrc).
*
* Returns: a #GstElement containing the audio source bin, or NULL if
* everything failed.
*/
GstElement *
gst_gconf_get_default_audio_src (void)
{
GstElement *ret = gst_gconf_render_bin_from_key ("default/audiosrc");
if (!ret) {
ret = gst_element_factory_make (DEFAULT_AUDIOSRC, NULL);
if (!ret)
g_warning ("No GConf default audio src key and %s doesn't work",
DEFAULT_AUDIOSRC);
}
return ret;
}
/**
* gst_gconf_get_default_video_src:
*
* Render video acquisition bin from GStreamer GConf key :
* "default/videosrc". If key is invalid, the default video source
* for the platform is used (typically videotestsrc).
*
* Returns: a #GstElement containing the video source bin, or NULL if
* everything failed.
*/
GstElement *
gst_gconf_get_default_video_src (void)
{
GstElement *ret = gst_gconf_render_bin_from_key ("default/videosrc");
if (!ret) {
ret = gst_element_factory_make (DEFAULT_VIDEOSRC, NULL);
if (!ret)
g_warning ("No GConf default video src key and %s doesn't work",
DEFAULT_VIDEOSRC);
}
return ret;
}
/**
* gst_gconf_get_default_visualization_element:
*
* Render visualization bin from GStreamer GConf key : "default/visualization".
* If key is invalid, the default visualization element is used.
*
* Returns: a #GstElement containing the visualization bin, or NULL if
* everything failed.
*/
GstElement *
gst_gconf_get_default_visualization_element (void)
{
GstElement *ret = gst_gconf_render_bin_from_key ("default/visualization");
if (!ret) {
ret = gst_element_factory_make (DEFAULT_VISUALIZER, NULL);
if (!ret)
g_warning
("No GConf default visualization plugin key and %s doesn't work",
DEFAULT_VISUALIZER);
}
return ret;
}
/* GStreamer
* Copyright (C) <2002> Thomas Vander Stichele <thomas@apestaart.org>
*
* 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.
*/
#ifndef GST_GCONF_H
#define GST_GCONF_H
/*
* this library handles interaction with GConf
*/
#include <gst/gst.h>
#include <gconf/gconf-client.h>
G_BEGIN_DECLS
gchar * gst_gconf_get_string (const gchar *key);
void gst_gconf_set_string (const gchar *key,
const gchar *value);
GstElement * gst_gconf_render_bin_from_key (const gchar *key);
GstElement * gst_gconf_render_bin_from_description (const gchar *description);
GstElement * gst_gconf_get_default_video_sink (void);
GstElement * gst_gconf_get_default_audio_sink (void);
GstElement * gst_gconf_get_default_video_src (void);
GstElement * gst_gconf_get_default_audio_src (void);
GstElement * gst_gconf_get_default_visualization_element (void);
G_END_DECLS
#endif /* GST_GCONF_H */
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment