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/* GStreamer
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* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
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*
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* gstpreset.c: helper interface for element presets
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:gstpreset
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* @short_description: helper interface for element presets
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*
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* This interface offers methods to query and manipulate parameter preset sets.
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* A preset is a bunch of property settings, together with meta data and a name.
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* The name of a preset serves as key for subsequent method calls to manipulate
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* single presets.
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* All instances of one type will share the list of presets. The list is created
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* on demand, if presets are not used, the list is not created.
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*
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* The interface comes with a default implementation that serves most plugins.
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* Wrapper plugins will override most methods to implement support for the
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* native preset format of those wrapped plugins.
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* One method that is useful to be overridden is gst_preset_get_property_names().
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* With that one can control which properties are saved and in which order.
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*/
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/* FIXME:
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* - non racyness
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* - we need to avoid two instances writing the preset file
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* -> flock(fileno()), http://www.ecst.csuchico.edu/~beej/guide/ipc/flock.html
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* -> open exclusive
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* -> better save the new file to a tempfile and then rename?
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* - we like to know when any other instance makes changes to the keyfile
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* - then ui can be updated
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* - and we make sure that we don't lose edits
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* -> its the same problem actually, once for inside a process, once system-
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* wide
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* - can we use a lock inside a names shared memory segment?
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*
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* - need to add support for GstChildProxy
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* we can do this in a next iteration, the format is flexible enough
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* http://www.buzztard.org/index.php/Preset_handling_interface
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*
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* - should there be a 'preset-list' property to get the preset list
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* (and to connect a notify:: to to listen for changes)
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* we could use gnome_vfs_monitor_add() to monitor the user preset_file.
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*
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* - should there be a 'preset-name' property so that we can set a preset via
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* gst-launch, or should we handle this with special syntax in gst-launch:
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* gst-launch element preset:<preset-name> property=value ...
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* - this would alloow to hanve preset-bundles too (a preset on bins that
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* specifies presets for children
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*
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* - GstChildProxy suport
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* - if we stick with GParamSpec **_list_properties()
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* we need to use g_param_spec_set_qdata() to specify the instance on each GParamSpec
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* OBJECT_LOCK(obj); // ChildProxy needs GstIterator support
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* num=gst_child_proxy_get_children_count(obj);
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* for(i=0;i<num;i++) {
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* child=gst_child_proxy_get_child_by_index(obj,i);
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* // v1 ----
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* g_object_class_list_properties(child,&num);
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* // foreach prop
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* // g_param_spec_set_qdata(prop, quark, (gpointer)child);
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* // add to result
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* // v2 ----
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* // children have to implement preset-iface too tag the returned GParamSpec* with the owner
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* props=gst_preset_list_properties(child);
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* // add props to result
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* }
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* OBJECT_UNLOCK(obj);
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*
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*/
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#include "gst_private.h"
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#include "gstpreset.h"
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <glib/gstdio.h>
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#define GST_CAT_DEFAULT preset_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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/* defines for keyfile usage, this group contains the element type name and
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* version these presets belong to. */
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#define PRESET_HEADER "_presets_"
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/* keys of the preset header section */
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#define PRESET_HEADER_ELEMENT_NAME "element-name"
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#define PRESET_HEADER_VERSION "version"
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static GQuark preset_user_path_quark = 0;
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static GQuark preset_system_path_quark = 0;
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static GQuark preset_quark = 0;
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/*static GQuark property_list_quark = 0;*/
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/* default iface implementation */
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static gboolean gst_preset_default_save_presets_file (GstPreset * preset);
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/*
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* preset_get_paths:
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* @preset: a #GObject that implements #GstPreset
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* @preset_user_path: location for path or %NULL
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* @preset_system_path: location for path or %NULL
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*
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* Fetch the preset_path for user local and system wide settings. Don't free
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* after use.
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*
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* Returns: %FALSE if no paths could be found.
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*/
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static gboolean
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preset_get_paths (GstPreset * preset, const gchar ** preset_user_path,
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const gchar ** preset_system_path)
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{
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GType type = G_TYPE_FROM_INSTANCE (preset);
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gchar *preset_path;
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const gchar *element_name;
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/* we use the element name when we must contruct the paths */
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element_name = G_OBJECT_TYPE_NAME (preset);
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GST_INFO_OBJECT (preset, "element_name: '%s'", element_name);
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if (preset_user_path) {
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/* preset user path requested, see if we have it cached in the qdata */
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if (!(preset_path = g_type_get_qdata (type, preset_user_path_quark))) {
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gchar *preset_dir;
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/* user presets go in '$HOME/.gstreamer-0.10/presets/GstSimSyn.prs' */
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preset_dir = g_build_filename (g_get_home_dir (),
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".gstreamer-" GST_MAJORMINOR, "presets", NULL);
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GST_INFO_OBJECT (preset, "user_preset_dir: '%s'", preset_dir);
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preset_path =
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g_strdup_printf ("%s" G_DIR_SEPARATOR_S "%s.prs", preset_dir,
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element_name);
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GST_INFO_OBJECT (preset, "user_preset_path: '%s'", preset_path);
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/* create dirs */
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g_mkdir_with_parents (preset_dir, 0755);
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g_free (preset_dir);
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/* cache the preset path to the type */
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g_type_set_qdata (type, preset_user_path_quark, preset_path);
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}
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*preset_user_path = preset_path;
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}
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if (preset_system_path) {
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/* preset system path requested, see if we have it cached in the qdata */
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if (!(preset_path = g_type_get_qdata (type, preset_system_path_quark))) {
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gchar *preset_dir;
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/* system presets in '$GST_DATADIR/gstreamer-0.10/presets/GstAudioPanorama.prs' */
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preset_dir = g_build_filename (GST_DATADIR, "gstreamer-" GST_MAJORMINOR,
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"presets", NULL);
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GST_INFO_OBJECT (preset, "system_preset_dir: '%s'", preset_dir);
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preset_path = g_strdup_printf ("%s" G_DIR_SEPARATOR_S "%s.prs",
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preset_dir, element_name);
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GST_INFO_OBJECT (preset, "system_preset_path: '%s'", preset_path);
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/* create dirs */
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g_mkdir_with_parents (preset_dir, 0755);
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g_free (preset_dir);
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/* cache the preset path to the type */
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g_type_set_qdata (type, preset_system_path_quark, preset_path);
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}
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*preset_system_path = preset_path;
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}
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return TRUE;
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}
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static gboolean
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preset_skip_property (GParamSpec * property)
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{
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if (((property->flags & G_PARAM_READWRITE) != G_PARAM_READWRITE) ||
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(property->flags & G_PARAM_CONSTRUCT_ONLY))
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return TRUE;
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/* FIXME: skip GST_PARAM_NOT_PRESETABLE, see #522205 */
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return FALSE;
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}
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/* caller must free @preset_version after use */
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static GKeyFile *
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preset_open_and_parse_header (GstPreset * preset, const gchar * preset_path,
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gchar ** preset_version)
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{
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GKeyFile *in;
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GError *error = NULL;
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gboolean res;
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const gchar *element_name;
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gchar *name;
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in = g_key_file_new ();
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res = g_key_file_load_from_file (in, preset_path,
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G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, &error);
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if (!res || error != NULL)
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goto load_error;
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/* element type name and preset name must match or we are dealing with a wrong
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* preset file */
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element_name = G_OBJECT_TYPE_NAME (preset);
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name =
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g_key_file_get_value (in, PRESET_HEADER, PRESET_HEADER_ELEMENT_NAME,
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NULL);
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if (!name || strcmp (name, element_name))
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goto wrong_name;
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g_free (name);
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/* get the version now so that the caller can check it */
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if (preset_version)
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*preset_version =
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g_key_file_get_value (in, PRESET_HEADER, PRESET_HEADER_VERSION, NULL);
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return in;
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/* ERRORS */
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load_error:
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{
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GST_WARNING_OBJECT (preset, "Unable to read preset file %s: %s",
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preset_path, error->message);
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g_error_free (error);
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g_key_file_free (in);
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return NULL;
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}
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wrong_name:
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{
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GST_WARNING_OBJECT (preset,
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"Wrong element name in preset file %s. Expected %s, got %s",
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preset_path, element_name, GST_STR_NULL (name));
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g_free (name);
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g_key_file_free (in);
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return NULL;
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}
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}
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static guint64
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preset_parse_version (const gchar * str_version)
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{
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gint major, minor, micro, nano, num;
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257 |
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258 |
major = minor = micro = nano = 0;
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259 |
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260 |
/* parse version (e.g. 0.10.15.1) to guint64 */
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num = sscanf (str_version, "%d.%d.%d.%d", &major, &minor, µ, &nano);
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/* make sure we have atleast "major.minor" */
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if (num > 1) {
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guint64 version;
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version = ((((major << 8 | minor) << 8) | micro) << 8) | nano;
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GST_DEBUG ("version %s -> %" G_GUINT64_FORMAT, str_version, version);
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return version;
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269 |
}
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return G_GUINT64_CONSTANT (0);
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271 |
}
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272 |
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273 |
static void
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preset_merge (GKeyFile * system, GKeyFile * user)
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{
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gchar *str;
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277 |
gchar **groups, **keys;
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gsize i, j, num_groups, num_keys;
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279 |
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280 |
/* copy file comment if there is any */
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if ((str = g_key_file_get_comment (user, NULL, NULL, NULL))) {
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282 |
g_key_file_set_comment (system, NULL, NULL, str, NULL);
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283 |
g_free (str);
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284 |
}
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285 |
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286 |
/* get groups in user and copy into system */
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287 |
groups = g_key_file_get_groups (user, &num_groups);
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288 |
for (i = 0; i < num_groups; i++) {
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289 |
/* copy group comment if there is any */
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290 |
if ((str = g_key_file_get_comment (user, groups[i], NULL, NULL))) {
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291 |
g_key_file_set_comment (system, groups[i], NULL, str, NULL);
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292 |
g_free (str);
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293 |
}
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294 |
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|
295 |
/* ignore private groups */
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|
296 |
if (groups[i][0] == '_')
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297 |
continue;
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298 |
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|
299 |
/* if group already exists in system, remove and re-add keys from user */
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300 |
if (g_key_file_has_group (system, groups[i])) {
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301 |
g_key_file_remove_group (system, groups[i], NULL);
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302 |
}
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303 |
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304 |
keys = g_key_file_get_keys (user, groups[i], &num_keys, NULL);
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|
305 |
for (j = 0; j < num_keys; j++) {
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|
306 |
/* copy key comment if there is any */
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307 |
if ((str = g_key_file_get_comment (user, groups[i], keys[j], NULL))) {
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|
308 |
g_key_file_set_comment (system, groups[i], keys[j], str, NULL);
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|
309 |
g_free (str);
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|
310 |
}
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|
311 |
str = g_key_file_get_value (user, groups[i], keys[j], NULL);
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|
312 |
g_key_file_set_value (system, groups[i], keys[j], str);
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|
313 |
g_free (str);
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|
314 |
}
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|
315 |
g_strfreev (keys);
|
|
316 |
}
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|
317 |
g_strfreev (groups);
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|
318 |
}
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|
319 |
|
|
320 |
/* reads the user and system presets files and merges them together. This
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|
321 |
* function caches the GKeyFile on the element type. If there is no existing
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|
322 |
* preset file, a new in-memory GKeyFile will be created. */
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|
323 |
static GKeyFile *
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|
324 |
preset_get_keyfile (GstPreset * preset)
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|
325 |
{
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|
326 |
GKeyFile *presets;
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|
327 |
GType type = G_TYPE_FROM_INSTANCE (preset);
|
|
328 |
|
|
329 |
/* first see if the have a cached version for the type */
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|
330 |
if (!(presets = g_type_get_qdata (type, preset_quark))) {
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|
331 |
const gchar *preset_user_path, *preset_system_path;
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|
332 |
gchar *str_version_user = NULL, *str_version_system = NULL;
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|
333 |
gboolean updated_from_system = FALSE;
|
|
334 |
GKeyFile *in_user, *in_system;
|
|
335 |
|
|
336 |
preset_get_paths (preset, &preset_user_path, &preset_system_path);
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|
337 |
|
|
338 |
/* try to load the user and system presets, we do this to get the versions
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|
339 |
* of both files. */
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|
340 |
in_user = preset_open_and_parse_header (preset, preset_user_path,
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|
341 |
&str_version_user);
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|
342 |
in_system = preset_open_and_parse_header (preset, preset_system_path,
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|
343 |
&str_version_system);
|
|
344 |
|
|
345 |
/* compare version to check for merge */
|
|
346 |
if (in_system) {
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|
347 |
/* keep system presets if there is no user preset or when the system
|
|
348 |
* version is higher than the user version. */
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|
349 |
if (!in_user) {
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|
350 |
presets = in_system;
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|
351 |
} else if (preset_parse_version (str_version_system) >
|
|
352 |
preset_parse_version (str_version_user)) {
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|
353 |
presets = in_system;
|
|
354 |
updated_from_system = TRUE;
|
|
355 |
}
|
|
356 |
}
|
|
357 |
if (in_user) {
|
|
358 |
if (updated_from_system) {
|
|
359 |
/* merge user on top of system presets */
|
|
360 |
preset_merge (presets, in_user);
|
|
361 |
g_key_file_free (in_user);
|
|
362 |
} else {
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|
363 |
/* keep user presets */
|
|
364 |
presets = in_user;
|
|
365 |
}
|
|
366 |
}
|
|
367 |
if (!in_user && !in_system) {
|
|
368 |
/* we did not load a user or system presets file, create a new one */
|
|
369 |
presets = g_key_file_new ();
|
|
370 |
g_key_file_set_string (presets, PRESET_HEADER, PRESET_HEADER_ELEMENT_NAME,
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|
371 |
G_OBJECT_TYPE_NAME (preset));
|
|
372 |
}
|
|
373 |
|
|
374 |
g_free (str_version_user);
|
|
375 |
g_free (str_version_system);
|
|
376 |
|
|
377 |
/* attach the preset to the type */
|
|
378 |
g_type_set_qdata (type, preset_quark, (gpointer) presets);
|
|
379 |
|
|
380 |
if (updated_from_system) {
|
|
381 |
gst_preset_default_save_presets_file (preset);
|
|
382 |
}
|
|
383 |
}
|
|
384 |
return presets;
|
|
385 |
}
|
|
386 |
|
|
387 |
/* get a list of all supported preset names for an element */
|
|
388 |
static gchar **
|
|
389 |
gst_preset_default_get_preset_names (GstPreset * preset)
|
|
390 |
{
|
|
391 |
GKeyFile *presets;
|
|
392 |
gsize i, num_groups;
|
|
393 |
gchar **groups;
|
|
394 |
|
|
395 |
/* get the presets from the type */
|
|
396 |
if (!(presets = preset_get_keyfile (preset)))
|
|
397 |
goto no_presets;
|
|
398 |
|
|
399 |
/* get the groups, which are also the preset names */
|
|
400 |
if (!(groups = g_key_file_get_groups (presets, &num_groups)))
|
|
401 |
goto no_groups;
|
|
402 |
|
|
403 |
/* remove all private group names starting with '_' from the array */
|
|
404 |
for (i = 0; i < num_groups; i++) {
|
|
405 |
if (groups[i][0] == '_') {
|
|
406 |
/* free private group */
|
|
407 |
g_free (groups[i]);
|
|
408 |
/* move last element of list down */
|
|
409 |
num_groups--;
|
|
410 |
/* move last element into removed element */
|
|
411 |
groups[i] = groups[num_groups];
|
|
412 |
groups[num_groups] = NULL;
|
|
413 |
}
|
|
414 |
}
|
|
415 |
/* sort the array now */
|
|
416 |
g_qsort_with_data (groups, num_groups, sizeof (gchar *),
|
|
417 |
(GCompareDataFunc) strcmp, NULL);
|
|
418 |
|
|
419 |
return groups;
|
|
420 |
|
|
421 |
/* ERRORS */
|
|
422 |
no_presets:
|
|
423 |
{
|
|
424 |
GST_WARNING_OBJECT (preset, "Could not load presets");
|
|
425 |
return NULL;
|
|
426 |
}
|
|
427 |
no_groups:
|
|
428 |
{
|
|
429 |
GST_WARNING_OBJECT (preset, "Could not find preset groups");
|
|
430 |
return NULL;
|
|
431 |
}
|
|
432 |
}
|
|
433 |
|
|
434 |
/* get a list of all property names that are used for presets */
|
|
435 |
static gchar **
|
|
436 |
gst_preset_default_get_property_names (GstPreset * preset)
|
|
437 |
{
|
|
438 |
GParamSpec **props;
|
|
439 |
guint i, j, n_props;
|
|
440 |
GObjectClass *gclass;
|
|
441 |
gchar **result;
|
|
442 |
|
|
443 |
gclass = G_OBJECT_CLASS (GST_ELEMENT_GET_CLASS (preset));
|
|
444 |
|
|
445 |
/* get a list of normal properties.
|
|
446 |
* FIXME, change this for childproxy support. */
|
|
447 |
props = g_object_class_list_properties (gclass, &n_props);
|
|
448 |
if (!props)
|
|
449 |
goto no_properties;
|
|
450 |
|
|
451 |
/* allocate array big enough to hold the worst case, including a terminating
|
|
452 |
* NULL pointer. */
|
|
453 |
result = g_new (gchar *, n_props + 1);
|
|
454 |
|
|
455 |
/* now filter out the properties that we can use for presets */
|
|
456 |
GST_DEBUG_OBJECT (preset, " filtering properties: %u", n_props);
|
|
457 |
for (i = j = 0; i < n_props; i++) {
|
|
458 |
if (preset_skip_property (props[i]))
|
|
459 |
continue;
|
|
460 |
|
|
461 |
/* copy and increment out pointer */
|
|
462 |
result[j++] = g_strdup (props[i]->name);
|
|
463 |
}
|
|
464 |
result[j] = NULL;
|
|
465 |
g_free (props);
|
|
466 |
|
|
467 |
return result;
|
|
468 |
|
|
469 |
/* ERRORS */
|
|
470 |
no_properties:
|
|
471 |
{
|
|
472 |
GST_INFO_OBJECT (preset, "object has no properties");
|
|
473 |
return NULL;
|
|
474 |
}
|
|
475 |
}
|
|
476 |
|
|
477 |
/* load the presets of @name for the instance @preset. Returns %FALSE if something
|
|
478 |
* failed. */
|
|
479 |
static gboolean
|
|
480 |
gst_preset_default_load_preset (GstPreset * preset, const gchar * name)
|
|
481 |
{
|
|
482 |
GKeyFile *presets;
|
|
483 |
gchar **props;
|
|
484 |
guint i;
|
|
485 |
GObjectClass *gclass;
|
|
486 |
|
|
487 |
/* get the presets from the type */
|
|
488 |
if (!(presets = preset_get_keyfile (preset)))
|
|
489 |
goto no_presets;
|
|
490 |
|
|
491 |
/* get the preset name */
|
|
492 |
if (!g_key_file_has_group (presets, name))
|
|
493 |
goto no_group;
|
|
494 |
|
|
495 |
GST_DEBUG_OBJECT (preset, "loading preset : '%s'", name);
|
|
496 |
|
|
497 |
/* get the properties that we can configure in this element */
|
|
498 |
if (!(props = gst_preset_get_property_names (preset)))
|
|
499 |
goto no_properties;
|
|
500 |
|
|
501 |
gclass = G_OBJECT_CLASS (GST_ELEMENT_GET_CLASS (preset));
|
|
502 |
|
|
503 |
/* for each of the property names, find the preset parameter and try to
|
|
504 |
* configure the property with its value */
|
|
505 |
for (i = 0; props[i]; i++) {
|
|
506 |
gchar *str;
|
|
507 |
GValue gvalue = { 0, };
|
|
508 |
GParamSpec *property;
|
|
509 |
|
|
510 |
/* check if we have a settings for this element property */
|
|
511 |
if (!(str = g_key_file_get_value (presets, name, props[i], NULL))) {
|
|
512 |
/* the element has a property but the parameter is not in the keyfile */
|
|
513 |
GST_WARNING_OBJECT (preset, "parameter '%s' not in preset", props[i]);
|
|
514 |
continue;
|
|
515 |
}
|
|
516 |
|
|
517 |
GST_DEBUG_OBJECT (preset, "setting value '%s' for property '%s'", str,
|
|
518 |
props[i]);
|
|
519 |
|
|
520 |
/* FIXME, change for childproxy to get the property and element. */
|
|
521 |
if (!(property = g_object_class_find_property (gclass, props[i]))) {
|
|
522 |
/* the parameter was in the keyfile, the element said it supported it but
|
|
523 |
* then the property was not found in the element. This should not happen. */
|
|
524 |
GST_WARNING_OBJECT (preset, "property '%s' not in object", props[i]);
|
|
525 |
g_free (str);
|
|
526 |
continue;
|
|
527 |
}
|
|
528 |
|
|
529 |
/* try to deserialize the property value from the keyfile and set it as
|
|
530 |
* the object property */
|
|
531 |
g_value_init (&gvalue, property->value_type);
|
|
532 |
if (gst_value_deserialize (&gvalue, str)) {
|
|
533 |
/* FIXME, change for childproxy support */
|
|
534 |
g_object_set_property (G_OBJECT (preset), props[i], &gvalue);
|
|
535 |
} else {
|
|
536 |
GST_WARNING_OBJECT (preset,
|
|
537 |
"deserialization of value '%s' for property '%s' failed", str,
|
|
538 |
props[i]);
|
|
539 |
}
|
|
540 |
g_value_unset (&gvalue);
|
|
541 |
g_free (str);
|
|
542 |
}
|
|
543 |
g_strfreev (props);
|
|
544 |
|
|
545 |
return TRUE;
|
|
546 |
|
|
547 |
/* ERRORS */
|
|
548 |
no_presets:
|
|
549 |
{
|
|
550 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
551 |
return FALSE;
|
|
552 |
}
|
|
553 |
no_group:
|
|
554 |
{
|
|
555 |
GST_WARNING_OBJECT (preset, "no preset named '%s'", name);
|
|
556 |
return FALSE;
|
|
557 |
}
|
|
558 |
no_properties:
|
|
559 |
{
|
|
560 |
GST_INFO_OBJECT (preset, "no properties");
|
|
561 |
return FALSE;
|
|
562 |
}
|
|
563 |
}
|
|
564 |
|
|
565 |
/* save the presets file. A copy of the existing presets file is stored in a
|
|
566 |
* .bak file */
|
|
567 |
static gboolean
|
|
568 |
gst_preset_default_save_presets_file (GstPreset * preset)
|
|
569 |
{
|
|
570 |
GKeyFile *presets;
|
|
571 |
const gchar *preset_path;
|
|
572 |
GError *error = NULL;
|
|
573 |
gchar *bak_file_name;
|
|
574 |
gboolean backup = TRUE;
|
|
575 |
gchar *data;
|
|
576 |
gsize data_size;
|
|
577 |
|
|
578 |
preset_get_paths (preset, &preset_path, NULL);
|
|
579 |
|
|
580 |
/* get the presets from the type */
|
|
581 |
if (!(presets = preset_get_keyfile (preset)))
|
|
582 |
goto no_presets;
|
|
583 |
|
|
584 |
GST_DEBUG_OBJECT (preset, "saving preset file: '%s'", preset_path);
|
|
585 |
|
|
586 |
/* create backup if possible */
|
|
587 |
bak_file_name = g_strdup_printf ("%s.bak", preset_path);
|
|
588 |
if (g_file_test (bak_file_name, G_FILE_TEST_EXISTS)) {
|
|
589 |
if (g_unlink (bak_file_name)) {
|
|
590 |
backup = FALSE;
|
|
591 |
GST_INFO_OBJECT (preset, "cannot remove old backup file : %s",
|
|
592 |
bak_file_name);
|
|
593 |
}
|
|
594 |
}
|
|
595 |
if (backup) {
|
|
596 |
if (g_rename (preset_path, bak_file_name)) {
|
|
597 |
GST_INFO_OBJECT (preset, "cannot backup file : %s -> %s", preset_path,
|
|
598 |
bak_file_name);
|
|
599 |
}
|
|
600 |
}
|
|
601 |
g_free (bak_file_name);
|
|
602 |
|
|
603 |
/* update gstreamer version */
|
|
604 |
g_key_file_set_string (presets, PRESET_HEADER, PRESET_HEADER_VERSION,
|
|
605 |
PACKAGE_VERSION);
|
|
606 |
|
|
607 |
/* get new contents, wee need this to save it */
|
|
608 |
if (!(data = g_key_file_to_data (presets, &data_size, &error)))
|
|
609 |
goto convert_failed;
|
|
610 |
|
|
611 |
/* write presets */
|
|
612 |
if (!g_file_set_contents (preset_path, data, data_size, &error))
|
|
613 |
goto write_failed;
|
|
614 |
|
|
615 |
g_free (data);
|
|
616 |
|
|
617 |
return TRUE;
|
|
618 |
|
|
619 |
/* ERRORS */
|
|
620 |
no_presets:
|
|
621 |
{
|
|
622 |
GST_WARNING_OBJECT (preset,
|
|
623 |
"no presets, trying to unlink possibly existing preset file: '%s'",
|
|
624 |
preset_path);
|
|
625 |
g_unlink (preset_path);
|
|
626 |
return FALSE;
|
|
627 |
}
|
|
628 |
convert_failed:
|
|
629 |
{
|
|
630 |
GST_WARNING_OBJECT (preset, "can not get the keyfile contents: %s",
|
|
631 |
error->message);
|
|
632 |
g_error_free (error);
|
|
633 |
g_free (data);
|
|
634 |
return FALSE;
|
|
635 |
}
|
|
636 |
write_failed:
|
|
637 |
{
|
|
638 |
GST_WARNING_OBJECT (preset, "Unable to store preset file %s: %s",
|
|
639 |
preset_path, error->message);
|
|
640 |
g_error_free (error);
|
|
641 |
g_free (data);
|
|
642 |
return FALSE;
|
|
643 |
}
|
|
644 |
}
|
|
645 |
|
|
646 |
/* save the preset with the given name */
|
|
647 |
static gboolean
|
|
648 |
gst_preset_default_save_preset (GstPreset * preset, const gchar * name)
|
|
649 |
{
|
|
650 |
GKeyFile *presets;
|
|
651 |
gchar **props;
|
|
652 |
guint i;
|
|
653 |
GObjectClass *gclass;
|
|
654 |
|
|
655 |
GST_INFO_OBJECT (preset, "saving new preset: %s", name);
|
|
656 |
|
|
657 |
/* get the presets from the type */
|
|
658 |
if (!(presets = preset_get_keyfile (preset)))
|
|
659 |
goto no_presets;
|
|
660 |
|
|
661 |
/* take copies of current gobject properties from preset */
|
|
662 |
if (!(props = gst_preset_get_property_names (preset)))
|
|
663 |
goto no_properties;
|
|
664 |
|
|
665 |
gclass = G_OBJECT_CLASS (GST_ELEMENT_GET_CLASS (preset));
|
|
666 |
|
|
667 |
/* loop over the object properties and store the property value in the
|
|
668 |
* keyfile */
|
|
669 |
for (i = 0; props[i]; i++) {
|
|
670 |
GValue gvalue = { 0, };
|
|
671 |
gchar *str;
|
|
672 |
GParamSpec *property;
|
|
673 |
|
|
674 |
/* FIXME, change for childproxy to get the property and element. */
|
|
675 |
if (!(property = g_object_class_find_property (gclass, props[i]))) {
|
|
676 |
/* the element said it supported the property but then it does not have
|
|
677 |
* that property. This should not happen. */
|
|
678 |
GST_WARNING_OBJECT (preset, "property '%s' not in object", props[i]);
|
|
679 |
continue;
|
|
680 |
}
|
|
681 |
|
|
682 |
g_value_init (&gvalue, property->value_type);
|
|
683 |
/* FIXME, change for childproxy */
|
|
684 |
g_object_get_property (G_OBJECT (preset), props[i], &gvalue);
|
|
685 |
|
|
686 |
if ((str = gst_value_serialize (&gvalue))) {
|
|
687 |
g_key_file_set_string (presets, name, props[i], (gpointer) str);
|
|
688 |
g_free (str);
|
|
689 |
} else {
|
|
690 |
GST_WARNING_OBJECT (preset, "serialization for property '%s' failed",
|
|
691 |
props[i]);
|
|
692 |
}
|
|
693 |
g_value_unset (&gvalue);
|
|
694 |
}
|
|
695 |
GST_INFO_OBJECT (preset, " saved");
|
|
696 |
g_strfreev (props);
|
|
697 |
|
|
698 |
/* save updated version */
|
|
699 |
return gst_preset_default_save_presets_file (preset);
|
|
700 |
|
|
701 |
/* ERRORS */
|
|
702 |
no_presets:
|
|
703 |
{
|
|
704 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
705 |
return FALSE;
|
|
706 |
}
|
|
707 |
no_properties:
|
|
708 |
{
|
|
709 |
GST_INFO_OBJECT (preset, "no properties");
|
|
710 |
return FALSE;
|
|
711 |
}
|
|
712 |
}
|
|
713 |
|
|
714 |
/* copies all keys and comments from one group to another, deleting the old
|
|
715 |
* group. */
|
|
716 |
static gboolean
|
|
717 |
gst_preset_default_rename_preset (GstPreset * preset, const gchar * old_name,
|
|
718 |
const gchar * new_name)
|
|
719 |
{
|
|
720 |
GKeyFile *presets;
|
|
721 |
gchar *str;
|
|
722 |
gchar **keys;
|
|
723 |
gsize i, num_keys;
|
|
724 |
|
|
725 |
/* get the presets from the type */
|
|
726 |
if (!(presets = preset_get_keyfile (preset)))
|
|
727 |
goto no_presets;
|
|
728 |
|
|
729 |
if (!g_key_file_has_group (presets, old_name))
|
|
730 |
goto no_group;
|
|
731 |
|
|
732 |
/* copy group comment if there is any */
|
|
733 |
if ((str = g_key_file_get_comment (presets, old_name, NULL, NULL))) {
|
|
734 |
g_key_file_set_comment (presets, new_name, NULL, str, NULL);
|
|
735 |
g_free (str);
|
|
736 |
}
|
|
737 |
|
|
738 |
/* get all keys from the old group and copy them in the new group */
|
|
739 |
keys = g_key_file_get_keys (presets, old_name, &num_keys, NULL);
|
|
740 |
for (i = 0; i < num_keys; i++) {
|
|
741 |
/* copy key comment if there is any */
|
|
742 |
if ((str = g_key_file_get_comment (presets, old_name, keys[i], NULL))) {
|
|
743 |
g_key_file_set_comment (presets, new_name, keys[i], str, NULL);
|
|
744 |
g_free (str);
|
|
745 |
}
|
|
746 |
/* copy key value */
|
|
747 |
str = g_key_file_get_value (presets, old_name, keys[i], NULL);
|
|
748 |
g_key_file_set_value (presets, new_name, keys[i], str);
|
|
749 |
g_free (str);
|
|
750 |
}
|
|
751 |
g_strfreev (keys);
|
|
752 |
|
|
753 |
/* remove old group */
|
|
754 |
g_key_file_remove_group (presets, old_name, NULL);
|
|
755 |
|
|
756 |
/* save updated version */
|
|
757 |
return gst_preset_default_save_presets_file (preset);
|
|
758 |
|
|
759 |
/* ERRORS */
|
|
760 |
no_presets:
|
|
761 |
{
|
|
762 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
763 |
return FALSE;
|
|
764 |
}
|
|
765 |
no_group:
|
|
766 |
{
|
|
767 |
GST_WARNING_OBJECT (preset, "no preset named %s", old_name);
|
|
768 |
return FALSE;
|
|
769 |
}
|
|
770 |
}
|
|
771 |
|
|
772 |
/* delete a group from the keyfile */
|
|
773 |
static gboolean
|
|
774 |
gst_preset_default_delete_preset (GstPreset * preset, const gchar * name)
|
|
775 |
{
|
|
776 |
GKeyFile *presets;
|
|
777 |
|
|
778 |
/* get the presets from the type */
|
|
779 |
if (!(presets = preset_get_keyfile (preset)))
|
|
780 |
goto no_presets;
|
|
781 |
|
|
782 |
/* get the group */
|
|
783 |
if (!g_key_file_has_group (presets, name))
|
|
784 |
goto no_group;
|
|
785 |
|
|
786 |
/* remove the group */
|
|
787 |
g_key_file_remove_group (presets, name, NULL);
|
|
788 |
|
|
789 |
/* save updated version */
|
|
790 |
return gst_preset_default_save_presets_file (preset);
|
|
791 |
|
|
792 |
/* ERRORS */
|
|
793 |
no_presets:
|
|
794 |
{
|
|
795 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
796 |
return FALSE;
|
|
797 |
}
|
|
798 |
no_group:
|
|
799 |
{
|
|
800 |
GST_WARNING_OBJECT (preset, "no preset named %s", name);
|
|
801 |
return FALSE;
|
|
802 |
}
|
|
803 |
}
|
|
804 |
|
|
805 |
static gboolean
|
|
806 |
gst_preset_default_set_meta (GstPreset * preset, const gchar * name,
|
|
807 |
const gchar * tag, const gchar * value)
|
|
808 |
{
|
|
809 |
GKeyFile *presets;
|
|
810 |
gchar *key;
|
|
811 |
|
|
812 |
/* get the presets from the type */
|
|
813 |
if (!(presets = preset_get_keyfile (preset)))
|
|
814 |
goto no_presets;
|
|
815 |
|
|
816 |
key = g_strdup_printf ("_meta/%s", tag);
|
|
817 |
if (value && *value) {
|
|
818 |
g_key_file_set_value (presets, name, key, value);
|
|
819 |
} else {
|
|
820 |
g_key_file_remove_key (presets, name, key, NULL);
|
|
821 |
}
|
|
822 |
g_free (key);
|
|
823 |
|
|
824 |
/* save updated keyfile */
|
|
825 |
return gst_preset_default_save_presets_file (preset);
|
|
826 |
|
|
827 |
/* ERRORS */
|
|
828 |
no_presets:
|
|
829 |
{
|
|
830 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
831 |
return FALSE;
|
|
832 |
}
|
|
833 |
}
|
|
834 |
|
|
835 |
/* the caller must free @value after usage */
|
|
836 |
static gboolean
|
|
837 |
gst_preset_default_get_meta (GstPreset * preset, const gchar * name,
|
|
838 |
const gchar * tag, gchar ** value)
|
|
839 |
{
|
|
840 |
GKeyFile *presets;
|
|
841 |
gchar *key;
|
|
842 |
|
|
843 |
/* get the presets from the type */
|
|
844 |
if (!(presets = preset_get_keyfile (preset)))
|
|
845 |
goto no_presets;
|
|
846 |
|
|
847 |
key = g_strdup_printf ("_meta/%s", tag);
|
|
848 |
*value = g_key_file_get_value (presets, name, key, NULL);
|
|
849 |
g_free (key);
|
|
850 |
|
|
851 |
return TRUE;
|
|
852 |
|
|
853 |
/* ERRORS */
|
|
854 |
no_presets:
|
|
855 |
{
|
|
856 |
GST_WARNING_OBJECT (preset, "no presets");
|
|
857 |
*value = NULL;
|
|
858 |
return FALSE;
|
|
859 |
}
|
|
860 |
}
|
|
861 |
|
|
862 |
/* wrapper */
|
|
863 |
|
|
864 |
/**
|
|
865 |
* gst_preset_get_preset_names:
|
|
866 |
* @preset: a #GObject that implements #GstPreset
|
|
867 |
*
|
|
868 |
* Get a copy of preset names as a NULL terminated string array.
|
|
869 |
*
|
|
870 |
* Returns: list with names, ue g_strfreev() after usage.
|
|
871 |
*
|
|
872 |
* Since: 0.10.20
|
|
873 |
*/
|
|
874 |
#ifdef __SYMBIAN32__
|
|
875 |
EXPORT_C
|
|
876 |
#endif
|
|
877 |
|
|
878 |
gchar **
|
|
879 |
gst_preset_get_preset_names (GstPreset * preset)
|
|
880 |
{
|
|
881 |
g_return_val_if_fail (GST_IS_PRESET (preset), NULL);
|
|
882 |
|
|
883 |
return (GST_PRESET_GET_INTERFACE (preset)->get_preset_names (preset));
|
|
884 |
}
|
|
885 |
|
|
886 |
/**
|
|
887 |
* gst_preset_get_property_names:
|
|
888 |
* @preset: a #GObject that implements #GstPreset
|
|
889 |
*
|
|
890 |
* Get a the names of the GObject properties that can be used for presets.
|
|
891 |
*
|
|
892 |
* Returns: an array of property names which should be freed with g_strfreev() after use.
|
|
893 |
*
|
|
894 |
* Since: 0.10.20
|
|
895 |
*/
|
|
896 |
#ifdef __SYMBIAN32__
|
|
897 |
EXPORT_C
|
|
898 |
#endif
|
|
899 |
|
|
900 |
gchar **
|
|
901 |
gst_preset_get_property_names (GstPreset * preset)
|
|
902 |
{
|
|
903 |
g_return_val_if_fail (GST_IS_PRESET (preset), NULL);
|
|
904 |
|
|
905 |
return (GST_PRESET_GET_INTERFACE (preset)->get_property_names (preset));
|
|
906 |
}
|
|
907 |
|
|
908 |
/**
|
|
909 |
* gst_preset_load_preset:
|
|
910 |
* @preset: a #GObject that implements #GstPreset
|
|
911 |
* @name: preset name to load
|
|
912 |
*
|
|
913 |
* Load the given preset.
|
|
914 |
*
|
|
915 |
* Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name
|
|
916 |
*
|
|
917 |
* Since: 0.10.20
|
|
918 |
*/
|
|
919 |
#ifdef __SYMBIAN32__
|
|
920 |
EXPORT_C
|
|
921 |
#endif
|
|
922 |
|
|
923 |
gboolean
|
|
924 |
gst_preset_load_preset (GstPreset * preset, const gchar * name)
|
|
925 |
{
|
|
926 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
927 |
g_return_val_if_fail (name, FALSE);
|
|
928 |
|
|
929 |
return (GST_PRESET_GET_INTERFACE (preset)->load_preset (preset, name));
|
|
930 |
}
|
|
931 |
|
|
932 |
/**
|
|
933 |
* gst_preset_save_preset:
|
|
934 |
* @preset: a #GObject that implements #GstPreset
|
|
935 |
* @name: preset name to save
|
|
936 |
*
|
|
937 |
* Save the current preset under the given name. If there is already a preset by
|
|
938 |
* this @name it will be overwritten.
|
|
939 |
*
|
|
940 |
* Returns: %TRUE for success, %FALSE
|
|
941 |
*
|
|
942 |
* Since: 0.10.20
|
|
943 |
*/
|
|
944 |
#ifdef __SYMBIAN32__
|
|
945 |
EXPORT_C
|
|
946 |
#endif
|
|
947 |
|
|
948 |
gboolean
|
|
949 |
gst_preset_save_preset (GstPreset * preset, const gchar * name)
|
|
950 |
{
|
|
951 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
952 |
g_return_val_if_fail (name, FALSE);
|
|
953 |
|
|
954 |
return (GST_PRESET_GET_INTERFACE (preset)->save_preset (preset, name));
|
|
955 |
}
|
|
956 |
|
|
957 |
/**
|
|
958 |
* gst_preset_rename_preset:
|
|
959 |
* @preset: a #GObject that implements #GstPreset
|
|
960 |
* @old_name: current preset name
|
|
961 |
* @new_name: new preset name
|
|
962 |
*
|
|
963 |
* Renames a preset. If there is already a preset by the @new_name it will be
|
|
964 |
* overwritten.
|
|
965 |
*
|
|
966 |
* Returns: %TRUE for success, %FALSE if e.g. there is no preset with @old_name
|
|
967 |
*
|
|
968 |
* Since: 0.10.20
|
|
969 |
*/
|
|
970 |
#ifdef __SYMBIAN32__
|
|
971 |
EXPORT_C
|
|
972 |
#endif
|
|
973 |
|
|
974 |
gboolean
|
|
975 |
gst_preset_rename_preset (GstPreset * preset, const gchar * old_name,
|
|
976 |
const gchar * new_name)
|
|
977 |
{
|
|
978 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
979 |
g_return_val_if_fail (old_name, FALSE);
|
|
980 |
g_return_val_if_fail (new_name, FALSE);
|
|
981 |
|
|
982 |
return (GST_PRESET_GET_INTERFACE (preset)->rename_preset (preset, old_name,
|
|
983 |
new_name));
|
|
984 |
}
|
|
985 |
|
|
986 |
/**
|
|
987 |
* gst_preset_delete_preset:
|
|
988 |
* @preset: a #GObject that implements #GstPreset
|
|
989 |
* @name: preset name to remove
|
|
990 |
*
|
|
991 |
* Delete the given preset.
|
|
992 |
*
|
|
993 |
* Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name
|
|
994 |
*
|
|
995 |
* Since: 0.10.20
|
|
996 |
*/
|
|
997 |
#ifdef __SYMBIAN32__
|
|
998 |
EXPORT_C
|
|
999 |
#endif
|
|
1000 |
|
|
1001 |
gboolean
|
|
1002 |
gst_preset_delete_preset (GstPreset * preset, const gchar * name)
|
|
1003 |
{
|
|
1004 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
1005 |
g_return_val_if_fail (name, FALSE);
|
|
1006 |
|
|
1007 |
return (GST_PRESET_GET_INTERFACE (preset)->delete_preset (preset, name));
|
|
1008 |
}
|
|
1009 |
|
|
1010 |
/**
|
|
1011 |
* gst_preset_set_meta:
|
|
1012 |
* @preset: a #GObject that implements #GstPreset
|
|
1013 |
* @name: preset name
|
|
1014 |
* @tag: meta data item name
|
|
1015 |
* @value: new value
|
|
1016 |
*
|
|
1017 |
* Sets a new @value for an existing meta data item or adds a new item. Meta
|
|
1018 |
* data @tag names can be something like e.g. "comment". Supplying %NULL for the
|
|
1019 |
* @value will unset an existing value.
|
|
1020 |
*
|
|
1021 |
* Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name
|
|
1022 |
*
|
|
1023 |
* Since: 0.10.20
|
|
1024 |
*/
|
|
1025 |
#ifdef __SYMBIAN32__
|
|
1026 |
EXPORT_C
|
|
1027 |
#endif
|
|
1028 |
|
|
1029 |
gboolean
|
|
1030 |
gst_preset_set_meta (GstPreset * preset, const gchar * name, const gchar * tag,
|
|
1031 |
const gchar * value)
|
|
1032 |
{
|
|
1033 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
1034 |
g_return_val_if_fail (name, FALSE);
|
|
1035 |
g_return_val_if_fail (tag, FALSE);
|
|
1036 |
|
|
1037 |
return GST_PRESET_GET_INTERFACE (preset)->set_meta (preset, name, tag, value);
|
|
1038 |
}
|
|
1039 |
|
|
1040 |
/**
|
|
1041 |
* gst_preset_get_meta:
|
|
1042 |
* @preset: a #GObject that implements #GstPreset
|
|
1043 |
* @name: preset name
|
|
1044 |
* @tag: meta data item name
|
|
1045 |
* @value: value
|
|
1046 |
*
|
|
1047 |
* Gets the @value for an existing meta data @tag. Meta data @tag names can be
|
|
1048 |
* something like e.g. "comment". Returned values need to be released when done.
|
|
1049 |
*
|
|
1050 |
* Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name
|
|
1051 |
* or no value for the given @tag
|
|
1052 |
*
|
|
1053 |
* Since: 0.10.20
|
|
1054 |
*/
|
|
1055 |
#ifdef __SYMBIAN32__
|
|
1056 |
EXPORT_C
|
|
1057 |
#endif
|
|
1058 |
|
|
1059 |
gboolean
|
|
1060 |
gst_preset_get_meta (GstPreset * preset, const gchar * name, const gchar * tag,
|
|
1061 |
gchar ** value)
|
|
1062 |
{
|
|
1063 |
g_return_val_if_fail (GST_IS_PRESET (preset), FALSE);
|
|
1064 |
g_return_val_if_fail (name, FALSE);
|
|
1065 |
g_return_val_if_fail (tag, FALSE);
|
|
1066 |
g_return_val_if_fail (value, FALSE);
|
|
1067 |
|
|
1068 |
return GST_PRESET_GET_INTERFACE (preset)->get_meta (preset, name, tag, value);
|
|
1069 |
}
|
|
1070 |
|
|
1071 |
/* class internals */
|
|
1072 |
|
|
1073 |
static void
|
|
1074 |
gst_preset_class_init (GstPresetInterface * iface)
|
|
1075 |
{
|
|
1076 |
iface->get_preset_names = gst_preset_default_get_preset_names;
|
|
1077 |
iface->get_property_names = gst_preset_default_get_property_names;
|
|
1078 |
|
|
1079 |
iface->load_preset = gst_preset_default_load_preset;
|
|
1080 |
iface->save_preset = gst_preset_default_save_preset;
|
|
1081 |
iface->rename_preset = gst_preset_default_rename_preset;
|
|
1082 |
iface->delete_preset = gst_preset_default_delete_preset;
|
|
1083 |
|
|
1084 |
iface->set_meta = gst_preset_default_set_meta;
|
|
1085 |
iface->get_meta = gst_preset_default_get_meta;
|
|
1086 |
}
|
|
1087 |
|
|
1088 |
static void
|
|
1089 |
gst_preset_base_init (gpointer g_class)
|
|
1090 |
{
|
|
1091 |
static gboolean initialized = FALSE;
|
|
1092 |
|
|
1093 |
if (!initialized) {
|
|
1094 |
/* init default implementation */
|
|
1095 |
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "preset",
|
|
1096 |
GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLACK, "preset interface");
|
|
1097 |
|
|
1098 |
/* create quarks for use with g_type_{g,s}et_qdata() */
|
|
1099 |
preset_quark = g_quark_from_static_string ("GstPreset::presets");
|
|
1100 |
preset_user_path_quark =
|
|
1101 |
g_quark_from_static_string ("GstPreset::user_path");
|
|
1102 |
preset_system_path_quark =
|
|
1103 |
g_quark_from_static_string ("GstPreset::system_path");
|
|
1104 |
|
|
1105 |
#if 0
|
|
1106 |
property_list_quark = g_quark_from_static_string ("GstPreset::properties");
|
|
1107 |
|
|
1108 |
/* create interface properties, each element would need to override this
|
|
1109 |
* g_object_class_override_property(gobject_class, PROP_PRESET_NAME, "preset-name");
|
|
1110 |
* and in _set_property() do
|
|
1111 |
* case PROP_PRESET_NAME: {
|
|
1112 |
* gchar *name = g_value_get_string (value);
|
|
1113 |
* if (name)
|
|
1114 |
* gst_preset_load_preset(preset, name);
|
|
1115 |
* } break;
|
|
1116 |
*/
|
|
1117 |
g_object_interface_install_property (g_class,
|
|
1118 |
g_param_spec_string ("preset-name",
|
|
1119 |
"preset-name property",
|
|
1120 |
"load given preset", NULL, G_PARAM_WRITABLE));
|
|
1121 |
#endif
|
|
1122 |
|
|
1123 |
initialized = TRUE;
|
|
1124 |
}
|
|
1125 |
}
|
|
1126 |
#ifdef __SYMBIAN32__
|
|
1127 |
EXPORT_C
|
|
1128 |
#endif
|
|
1129 |
|
|
1130 |
|
|
1131 |
GType
|
|
1132 |
gst_preset_get_type (void)
|
|
1133 |
{
|
|
1134 |
static volatile gsize type = 0;
|
|
1135 |
|
|
1136 |
if (g_once_init_enter (&type)) {
|
|
1137 |
GType _type;
|
|
1138 |
const GTypeInfo info = {
|
|
1139 |
sizeof (GstPresetInterface),
|
|
1140 |
(GBaseInitFunc) gst_preset_base_init, /* base_init */
|
|
1141 |
NULL, /* base_finalize */
|
|
1142 |
(GClassInitFunc) gst_preset_class_init, /* class_init */
|
|
1143 |
NULL, /* class_finalize */
|
|
1144 |
NULL, /* class_data */
|
|
1145 |
0,
|
|
1146 |
0, /* n_preallocs */
|
|
1147 |
NULL /* instance_init */
|
|
1148 |
};
|
|
1149 |
_type = g_type_register_static (G_TYPE_INTERFACE, "GstPreset", &info, 0);
|
|
1150 |
g_once_init_leave (&type, _type);
|
|
1151 |
}
|
|
1152 |
return type;
|
|
1153 |
}
|