<chapter>
<title>Serialization Classes</title>
<xi:include href="xml/ges-formatter.xml"/>
+ <xi:include href="xml/ges-keyfile-formatter.xml"/>
</chapter>
<chapter id="ges-hierarchy">
<TITLE>GESFormatter</TITLE>
GESFormatter
GESFormatterClass
-ges_formatter_new
+ges_default_formatter_new
ges_formatter_load_from_uri
ges_formatter_save_to_uri
ges_formatter_new_for_uri
GES_IS_FORMATTER_CLASS
GES_TYPE_FORMATTER
</SECTION>
+
+<SECTION>
+<FILE>ges-keyfile-formatter</FILE>
+<TITLE>GESFormatter</TITLE>
+GESKeyfileFormatter
+GESKeyfileFormatterClass
+ges_keyfile_formatter_new
+<SUBSECTION Standard>
+GES_IS_KEYFILE_FORMATTER
+GES_IS_KEYFILE_FORMATTER_CLASS
+GES_KEYFILE_FORMATTER
+GES_KEYFILE_FORMATTER_CLASS
+GES_KEYFILE_FORMATTER_GET_CLASS
+GES_TYPE_KEYFILE_FORMATTER
+ges_keyfile_formatter_get_type
+</SECTION>
ges_video_test_pattern_get_type
ges_track_operation_get_type
ges_formatter_get_type
+ges_keyfile_formatter_get_type
ges-track-text-overlay.c \
ges-screenshot.c \
ges-formatter.c \
+ ges-keyfile-formatter.c \
ges-utils.c
libges_@GST_MAJORMINOR@includedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/ges/
ges-track-text-overlay.h \
ges-screenshot.h \
ges-formatter.h \
+ ges-keyfile-formatter.h \
ges-utils.h
libges_@GST_MAJORMINOR@_la_CFLAGS = -I$(top_srcdir) $(GST_PROFILE_CFLAGS) $(GST_PBUTILS_CFLAGS) $(GST_VIDEO_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
static void ges_formatter_dispose (GObject * object);
static void ges_formatter_finalize (GObject * object);
-/* for ini format */
-static gboolean save_ini (GESFormatter * formatter, GESTimeline * timeline);
-static gboolean load_ini (GESFormatter * formatter, GESTimeline * timeline);
-
static void
ges_formatter_class_init (GESFormatterClass * klass)
{
object_class->dispose = ges_formatter_dispose;
object_class->finalize = ges_formatter_finalize;
-
- klass->save = save_ini;
- klass->load = load_ini;
}
static void
{
}
-GESFormatter *
-ges_formatter_new (void)
-{
- return g_object_new (GES_TYPE_FORMATTER, NULL);
-}
-
/**
* ges_formatter_new_for_uri:
* @uri: a #gchar * pointing to the uri
ges_formatter_new_for_uri (gchar * uri)
{
if (ges_formatter_can_load_uri (uri))
- return ges_formatter_new ();
+ return GES_FORMATTER (ges_keyfile_formatter_new ());
return NULL;
}
/**
+ * ges_formatter_default_new:
+ *
+ * Creates a new instance of the default GESFormatter type on this system
+ * (currently #GESKeyFileFormatter).
+ *
+ * Returns: a #GESFormatter instance or NULL
+ */
+
+GESFormatter *
+ges_default_formatter_new (void)
+{
+ return GES_FORMATTER (ges_keyfile_formatter_new ());
+}
+
+/**
* ges_formatter_can_load_uri:
* @uri: a #gchar * pointing to the URI
*
if (klass->load)
return klass->load (formatter, timeline);
+ GST_ERROR ("not implemented!");
return FALSE;
}
if (klass->save)
return klass->save (formatter, timeline);
+ GST_ERROR ("not implemented!");
return FALSE;
}
return ret;
}
-
-static gboolean
-save_ini (GESFormatter * formatter, GESTimeline * timeline)
-{
- GKeyFile *kf;
- GList *tmp, *tracks;
- int i = 0;
- int n_objects = 0;
- gchar buffer[255];
-
- GST_DEBUG ("saving formatter");
-
- kf = g_key_file_new ();
-
- g_key_file_set_value (kf, "General", "version", "1");
-
- tracks = ges_timeline_get_tracks (timeline);
-
- for (i = 0, tmp = tracks; tmp; i++, tmp = tmp->next) {
- GESTrack *track;
- gchar *type;
- gchar *caps;
- GValue v = { 0 };
-
- track = GES_TRACK (tmp->data);
-
- g_snprintf (buffer, 255, "Track%d", i);
- g_value_init (&v, GES_TYPE_TRACK_TYPE);
- g_object_get_property (G_OBJECT (track), "track-type", &v);
-
- type = gst_value_serialize (&v);
- caps = gst_caps_to_string (track->caps);
-
- g_key_file_set_value (kf, buffer, "type", type);
- g_key_file_set_string (kf, buffer, "caps", caps);
-
- g_free (caps);
- g_free (type);
- gst_object_unref (track);
- tmp->data = NULL;
- }
-
- g_list_free (tracks);
-
- for (i = 0, tmp = timeline->layers; tmp; i++, tmp = tmp->next) {
- const gchar *type;
- GESTimelineLayer *layer;
- GList *objs, *cur;
- layer = tmp->data;
-
- g_snprintf (buffer, 255, "Layer%d", i);
-
- if (GES_IS_SIMPLE_TIMELINE_LAYER (tmp->data)) {
- type = "simple";
- } else {
- type = "default";
- }
-
- g_key_file_set_integer (kf, buffer, "priority", layer->priority);
- g_key_file_set_value (kf, buffer, "type", type);
-
- objs = ges_timeline_layer_get_objects (layer);
-
- for (cur = objs; cur; cur = cur->next) {
- GESTimelineObject *obj;
- GParamSpec **properties;
- guint i, n;
-
- obj = GES_TIMELINE_OBJECT (cur->data);
- properties =
- g_object_class_list_properties (G_OBJECT_GET_CLASS (obj), &n);
-
- g_snprintf (buffer, 255, "Object%d", n_objects);
- n_objects++;
-
- g_key_file_set_value (kf, buffer, "type",
- G_OBJECT_TYPE_NAME (G_OBJECT (obj)));
-
- for (i = 0; i < n; i++) {
- GValue v = { 0 };
- gchar *serialized;
- GParamSpec *p = properties[i];
-
- g_value_init (&v, p->value_type);
- g_object_get_property (G_OBJECT (obj), p->name, &v);
-
- /* FIXME: does this work for properties marked G_PARAM_CONSTRUCT_ONLY?
- * */
-
- if ((p->flags & G_PARAM_READABLE) && (p->flags & G_PARAM_WRITABLE)) {
- if (!(serialized = gst_value_serialize (&v)))
- continue;
-
- g_key_file_set_string (kf, buffer, p->name, serialized);
- g_free (serialized);
- }
-
- g_value_unset (&v);
- }
-
- g_free (properties);
- g_object_unref (obj);
- cur->data = NULL;
- }
-
- g_list_free (objs);
- }
-
- if (formatter->data) {
- g_free (formatter->data);
- }
-
- formatter->data = g_key_file_to_data (kf, &formatter->length, NULL);
- g_key_file_free (kf);
-
- return TRUE;
-}
-
-static gboolean
-create_track (GKeyFile * kf, gchar * group, GESTimeline * timeline)
-{
- GESTrack *track;
- GstCaps *caps;
- gchar *caps_field, *type_field;
- GValue v = { 0 };
-
- if (!(caps_field = g_key_file_get_string (kf, group, "caps", NULL)))
- return FALSE;
-
- caps = gst_caps_from_string (caps_field);
- g_free (caps_field);
-
- if (!(type_field = g_key_file_get_value (kf, group, "type", NULL)))
- return FALSE;
-
- g_value_init (&v, GES_TYPE_TRACK_TYPE);
- gst_value_deserialize (&v, type_field);
- g_free (type_field);
-
- if (!caps)
- return FALSE;
-
- track = ges_track_new (g_value_get_flags (&v), caps);
-
- if (!ges_timeline_add_track (timeline, track)) {
- g_object_unref (track);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static GESTimelineLayer *
-create_layer (GKeyFile * kf, gchar * group, GESTimeline * timeline)
-{
- GESTimelineLayer *ret = NULL;
- gchar *type_field, *priority_field;
- gboolean is_simple;
- guint priority;
-
- if (!(type_field = g_key_file_get_value (kf, group, "type", NULL)))
- return FALSE;
-
- is_simple = g_str_equal (type_field, "simple");
- g_free (type_field);
-
- if (!(priority_field = g_key_file_get_value (kf, group, "priority", NULL)))
- return FALSE;
-
- priority = strtoul (priority_field, NULL, 10);
- g_free (priority_field);
-
- if (is_simple) {
- GESSimpleTimelineLayer *simple;
- simple = ges_simple_timeline_layer_new ();
- ret = (GESTimelineLayer *) simple;
- } else {
- ret = ges_timeline_layer_new ();
- }
-
- ges_timeline_layer_set_priority (ret, priority);
- if (!ges_timeline_add_layer (timeline, ret)) {
- g_object_unref (ret);
- ret = NULL;
- }
-
- return ret;
-}
-
-static gboolean
-create_object (GKeyFile * kf, gchar * group, GESTimelineLayer * layer)
-{
- GType type;
- gchar *type_name;
- GObject *obj;
- GESTimelineObject *timeline_obj;
- gchar **keys;
- gsize n_keys, i;
- GParamSpec *pspec;
- GObjectClass *klass;
- GParameter *params, *p;
- gboolean ret = FALSE;
-
- GST_INFO ("processing '%s'", group);
-
- /* get a reference to the object class */
-
- if (!(type_name = g_key_file_get_value (kf, group, "type", NULL))) {
- GST_ERROR ("no type name for object '%s'", group);
- return FALSE;
- }
-
- if (!(type = g_type_from_name (type_name))) {
- GST_ERROR ("invalid type name '%s'", type_name);
- goto fail_free_type_name;
- }
-
- if (!(klass = g_type_class_ref (type))) {
- GST_ERROR ("couldn't get class ref");
- goto fail_free_type_name;
- }
-
- if (!(keys = g_key_file_get_keys (kf, group, &n_keys, NULL)))
- goto fail_unref_class;
-
- /* create an array of parameters for the call to g_new0 */
- /* skip first field 'type' */
-
- if (!(params = g_new0 (GParameter, (n_keys - 1)))) {
- GST_ERROR ("couldn't allocate parameter list");
- goto fail_free_keys;
- }
-
- GST_DEBUG ("processing parameter list", group);
-
- for (p = params, i = 1; i < n_keys; i++, p++) {
- gchar *value;
- gchar *key;
-
- key = keys[i];
-
- GST_DEBUG ("processing key '%s'", key);
-
- /* find the param spec for this property */
- if (!(pspec = g_object_class_find_property (klass, key))) {
- GST_ERROR ("Object type %s has no property %s", type_name, key);
- goto fail_free_params;
- }
-
- p->name = key;
- g_value_init (&p->value, pspec->value_type);
-
- /* assume this is going to work */
- value = g_key_file_get_string (kf, group, key, NULL);
-
- if (!gst_value_deserialize (&p->value, value)) {
- GST_ERROR ("Couldn't read property value '%s' for property '%s'",
- key, value);
- goto fail_free_params;
- }
-
- g_free (value);
- }
-
- /* create the object from the supplied type name */
-
- if (!(obj = g_object_newv (type, (n_keys - 1), params))) {
- GST_ERROR ("couldn't create object");
- goto fail_free_type_name;
- }
-
- /* check that we have a subclass of GESTimelineObject */
-
- if (!GES_IS_TIMELINE_OBJECT (obj)) {
- GST_ERROR ("'%s' is not a subclass of GESTimelineObject!", type_name);
- goto fail_unref_obj;
- }
- timeline_obj = (GESTimelineObject *) obj;
-
- /* add the object to the layer */
-
- if (GES_IS_SIMPLE_TIMELINE_LAYER (layer)) {
- if (!ges_simple_timeline_layer_add_object ((GESSimpleTimelineLayer *)
- layer, timeline_obj, -1)) {
- goto fail_unref_obj;
- }
- } else {
- if (!ges_timeline_layer_add_object (layer, timeline_obj)) {
- goto fail_unref_obj;
- }
- }
-
- ret = TRUE;
-
-fail_unref_obj:
- if (!ret)
- g_object_unref (obj);
-
-fail_free_params:
- for (p = params, i = 1; i < n_keys; i++, p++) {
- g_value_unset (&p->value);
- }
- g_free (params);
-
-fail_free_keys:
- g_strfreev (keys);
-
-fail_unref_class:
- g_type_class_unref (klass);
-
-fail_free_type_name:
- g_free (type_name);
-
- return ret;
-}
-
-static gboolean
-load_ini (GESFormatter * formatter, GESTimeline * timeline)
-{
- GKeyFile *kf;
- GError *error = NULL;
- gboolean ret = TRUE;
- gchar **groups;
- gsize n_groups, i;
- GESTimelineLayer *cur_layer = NULL;
-
- kf = g_key_file_new ();
- if (!g_key_file_load_from_data (kf, formatter->data, formatter->length,
- G_KEY_FILE_NONE, &error)) {
- ret = FALSE;
- GST_ERROR (error->message);
- GST_INFO (formatter->data);
- goto free_kf;
- }
-
- if (!(groups = g_key_file_get_groups (kf, &n_groups))) {
- goto free_kf;
- }
-
- for (i = 0; i < n_groups; i++) {
- gchar *group = groups[i];
-
- if (g_str_has_prefix (group, "Track")) {
- if (!create_track (kf, group, timeline)) {
- GST_ERROR ("couldn't create object for %s", group);
- ret = FALSE;
- break;
- }
- }
-
- else if (g_str_has_prefix (group, "Layer")) {
- if (!(cur_layer = create_layer (kf, group, timeline))) {
- GST_ERROR ("couldn't create object for %s", group);
- ret = FALSE;
- break;
- }
- }
-
- else if (g_str_has_prefix (group, "Object")) {
- if (!cur_layer) {
- GST_ERROR ("Group %s occurs outside of Layer", group);
- ret = FALSE;
- break;
- }
-
- if (!create_object (kf, group, cur_layer)) {
- GST_ERROR ("couldn't create object for %s", group);
- ret = FALSE;
- break;
- }
- }
-
- else if (g_str_equal (group, "General")) {
- continue;
- }
-
- else {
- GST_ERROR ("Unrecognized group name %s", group);
- ret = FALSE;
- break;
- }
- }
-
- g_strfreev (groups);
-
-free_kf:
- g_key_file_free (kf);
- return ret;
-}
GType ges_formatter_get_type (void);
-GESFormatter *ges_formatter_new (void);
GESFormatter *ges_formatter_new_for_uri (gchar *uri);
+GESFormatter *ges_default_formatter_new (void);
gboolean ges_formatter_can_load_uri (gchar * uri);
gboolean ges_formatter_can_save_uri (gchar * uri);
--- /dev/null
+/* GStreamer Editing Services
+ * Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk>
+ * 2010 Nokia Corporation
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:ges-keyfile-formatter
+ * @short_description: Base Class for loading and saving #GESTimeline data.
+ *
+ * Responsible for loading and/or saving the contents of a #GESTimeline to/from
+ * various formats.
+ **/
+
+#include <gst/gst.h>
+#include <stdlib.h>
+#include "ges.h"
+#include "ges-internal.h"
+
+G_DEFINE_TYPE (GESKeyfileFormatter, ges_keyfile_formatter, GES_TYPE_FORMATTER);
+
+static void ges_keyfile_formatter_dispose (GObject * object);
+static void ges_keyfile_formatter_finalize (GObject * object);
+
+/* for ini format */
+static gboolean save_keyfile (GESFormatter * keyfile_formatter,
+ GESTimeline * timeline);
+static gboolean load_keyfile (GESFormatter * keyfile_formatter,
+ GESTimeline * timeline);
+
+static void
+ges_keyfile_formatter_class_init (GESKeyfileFormatterClass * klass)
+{
+ GESFormatterClass *formatter_klass;
+ GObjectClass *object_class;
+
+ object_class = G_OBJECT_CLASS (klass);
+ formatter_klass = GES_FORMATTER_CLASS (klass);
+
+
+ object_class->dispose = ges_keyfile_formatter_dispose;
+ object_class->finalize = ges_keyfile_formatter_finalize;
+
+ formatter_klass->save = save_keyfile;
+ formatter_klass->load = load_keyfile;
+}
+
+static void
+ges_keyfile_formatter_init (GESKeyfileFormatter * object)
+{
+}
+
+static void
+ges_keyfile_formatter_dispose (GObject * object)
+{
+}
+
+static void
+ges_keyfile_formatter_finalize (GObject * keyfile_formatter)
+{
+}
+
+GESKeyfileFormatter *
+ges_keyfile_formatter_new (void)
+{
+ return g_object_new (GES_TYPE_KEYFILE_FORMATTER, NULL);
+}
+
+static gboolean
+save_keyfile (GESFormatter * keyfile_formatter, GESTimeline * timeline)
+{
+ GKeyFile *kf;
+ GList *tmp, *tracks;
+ int i = 0;
+ int n_objects = 0;
+ gchar buffer[255];
+
+ GST_DEBUG ("saving keyfile_formatter");
+
+ kf = g_key_file_new ();
+
+ g_key_file_set_value (kf, "General", "version", "1");
+
+ tracks = ges_timeline_get_tracks (timeline);
+
+ for (i = 0, tmp = tracks; tmp; i++, tmp = tmp->next) {
+ GESTrack *track;
+ gchar *type;
+ gchar *caps;
+ GValue v = { 0 };
+
+ track = GES_TRACK (tmp->data);
+
+ g_snprintf (buffer, 255, "Track%d", i);
+ g_value_init (&v, GES_TYPE_TRACK_TYPE);
+ g_object_get_property (G_OBJECT (track), "track-type", &v);
+
+ type = gst_value_serialize (&v);
+ caps = gst_caps_to_string (track->caps);
+
+ g_key_file_set_value (kf, buffer, "type", type);
+ g_key_file_set_string (kf, buffer, "caps", caps);
+
+ g_free (caps);
+ g_free (type);
+ gst_object_unref (track);
+ tmp->data = NULL;
+ }
+
+ g_list_free (tracks);
+
+ for (i = 0, tmp = timeline->layers; tmp; i++, tmp = tmp->next) {
+ const gchar *type;
+ GESTimelineLayer *layer;
+ GList *objs, *cur;
+ layer = tmp->data;
+
+ g_snprintf (buffer, 255, "Layer%d", i);
+
+ if (GES_IS_SIMPLE_TIMELINE_LAYER (tmp->data)) {
+ type = "simple";
+ } else {
+ type = "default";
+ }
+
+ g_key_file_set_integer (kf, buffer, "priority", layer->priority);
+ g_key_file_set_value (kf, buffer, "type", type);
+
+ objs = ges_timeline_layer_get_objects (layer);
+
+ for (cur = objs; cur; cur = cur->next) {
+ GESTimelineObject *obj;
+ GParamSpec **properties;
+ guint i, n;
+
+ obj = GES_TIMELINE_OBJECT (cur->data);
+ properties =
+ g_object_class_list_properties (G_OBJECT_GET_CLASS (obj), &n);
+
+ g_snprintf (buffer, 255, "Object%d", n_objects);
+ n_objects++;
+
+ g_key_file_set_value (kf, buffer, "type",
+ G_OBJECT_TYPE_NAME (G_OBJECT (obj)));
+
+ for (i = 0; i < n; i++) {
+ GValue v = { 0 };
+ gchar *serialized;
+ GParamSpec *p = properties[i];
+
+ g_value_init (&v, p->value_type);
+ g_object_get_property (G_OBJECT (obj), p->name, &v);
+
+ /* FIXME: does this work for properties marked G_PARAM_CONSTRUCT_ONLY?
+ * */
+
+ if ((p->flags & G_PARAM_READABLE) && (p->flags & G_PARAM_WRITABLE)) {
+ if (!(serialized = gst_value_serialize (&v)))
+ continue;
+
+ g_key_file_set_string (kf, buffer, p->name, serialized);
+ g_free (serialized);
+ }
+
+ g_value_unset (&v);
+ }
+
+ g_free (properties);
+ g_object_unref (obj);
+ cur->data = NULL;
+ }
+
+ g_list_free (objs);
+ }
+
+ if (keyfile_formatter->data) {
+ g_free (keyfile_formatter->data);
+ }
+
+ keyfile_formatter->data =
+ g_key_file_to_data (kf, &keyfile_formatter->length, NULL);
+ g_key_file_free (kf);
+
+ return TRUE;
+}
+
+static gboolean
+create_track (GKeyFile * kf, gchar * group, GESTimeline * timeline)
+{
+ GESTrack *track;
+ GstCaps *caps;
+ gchar *caps_field, *type_field;
+ GValue v = { 0 };
+
+ if (!(caps_field = g_key_file_get_string (kf, group, "caps", NULL)))
+ return FALSE;
+
+ caps = gst_caps_from_string (caps_field);
+ g_free (caps_field);
+
+ if (!(type_field = g_key_file_get_value (kf, group, "type", NULL)))
+ return FALSE;
+
+ g_value_init (&v, GES_TYPE_TRACK_TYPE);
+ gst_value_deserialize (&v, type_field);
+ g_free (type_field);
+
+ if (!caps)
+ return FALSE;
+
+ track = ges_track_new (g_value_get_flags (&v), caps);
+
+ if (!ges_timeline_add_track (timeline, track)) {
+ g_object_unref (track);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static GESTimelineLayer *
+create_layer (GKeyFile * kf, gchar * group, GESTimeline * timeline)
+{
+ GESTimelineLayer *ret = NULL;
+ gchar *type_field, *priority_field;
+ gboolean is_simple;
+ guint priority;
+
+ if (!(type_field = g_key_file_get_value (kf, group, "type", NULL)))
+ return FALSE;
+
+ is_simple = g_str_equal (type_field, "simple");
+ g_free (type_field);
+
+ if (!(priority_field = g_key_file_get_value (kf, group, "priority", NULL)))
+ return FALSE;
+
+ priority = strtoul (priority_field, NULL, 10);
+ g_free (priority_field);
+
+ if (is_simple) {
+ GESSimpleTimelineLayer *simple;
+ simple = ges_simple_timeline_layer_new ();
+ ret = (GESTimelineLayer *) simple;
+ } else {
+ ret = ges_timeline_layer_new ();
+ }
+
+ ges_timeline_layer_set_priority (ret, priority);
+ if (!ges_timeline_add_layer (timeline, ret)) {
+ g_object_unref (ret);
+ ret = NULL;
+ }
+
+ return ret;
+}
+
+static gboolean
+create_object (GKeyFile * kf, gchar * group, GESTimelineLayer * layer)
+{
+ GType type;
+ gchar *type_name;
+ GObject *obj;
+ GESTimelineObject *timeline_obj;
+ gchar **keys;
+ gsize n_keys, i;
+ GParamSpec *pspec;
+ GObjectClass *klass;
+ GParameter *params, *p;
+ gboolean ret = FALSE;
+
+ GST_INFO ("processing '%s'", group);
+
+ /* get a reference to the object class */
+
+ if (!(type_name = g_key_file_get_value (kf, group, "type", NULL))) {
+ GST_ERROR ("no type name for object '%s'", group);
+ return FALSE;
+ }
+
+ if (!(type = g_type_from_name (type_name))) {
+ GST_ERROR ("invalid type name '%s'", type_name);
+ goto fail_free_type_name;
+ }
+
+ if (!(klass = g_type_class_ref (type))) {
+ GST_ERROR ("couldn't get class ref");
+ goto fail_free_type_name;
+ }
+
+ if (!(keys = g_key_file_get_keys (kf, group, &n_keys, NULL)))
+ goto fail_unref_class;
+
+ /* create an array of parameters for the call to g_new0 */
+ /* skip first field 'type' */
+
+ if (!(params = g_new0 (GParameter, (n_keys - 1)))) {
+ GST_ERROR ("couldn't allocate parameter list");
+ goto fail_free_keys;
+ }
+
+ GST_DEBUG ("processing parameter list", group);
+
+ for (p = params, i = 1; i < n_keys; i++, p++) {
+ gchar *value;
+ gchar *key;
+
+ key = keys[i];
+
+ GST_DEBUG ("processing key '%s'", key);
+
+ /* find the param spec for this property */
+ if (!(pspec = g_object_class_find_property (klass, key))) {
+ GST_ERROR ("Object type %s has no property %s", type_name, key);
+ goto fail_free_params;
+ }
+
+ p->name = key;
+ g_value_init (&p->value, pspec->value_type);
+
+ /* assume this is going to work */
+ value = g_key_file_get_string (kf, group, key, NULL);
+
+ if (!gst_value_deserialize (&p->value, value)) {
+ GST_ERROR ("Couldn't read property value '%s' for property '%s'",
+ key, value);
+ goto fail_free_params;
+ }
+
+ g_free (value);
+ }
+
+ /* create the object from the supplied type name */
+
+ if (!(obj = g_object_newv (type, (n_keys - 1), params))) {
+ GST_ERROR ("couldn't create object");
+ goto fail_free_type_name;
+ }
+
+ /* check that we have a subclass of GESTimelineObject */
+
+ if (!GES_IS_TIMELINE_OBJECT (obj)) {
+ GST_ERROR ("'%s' is not a subclass of GESTimelineObject!", type_name);
+ goto fail_unref_obj;
+ }
+ timeline_obj = (GESTimelineObject *) obj;
+
+ /* add the object to the layer */
+
+ if (GES_IS_SIMPLE_TIMELINE_LAYER (layer)) {
+ if (!ges_simple_timeline_layer_add_object ((GESSimpleTimelineLayer *)
+ layer, timeline_obj, -1)) {
+ goto fail_unref_obj;
+ }
+ } else {
+ if (!ges_timeline_layer_add_object (layer, timeline_obj)) {
+ goto fail_unref_obj;
+ }
+ }
+
+ ret = TRUE;
+
+fail_unref_obj:
+ if (!ret)
+ g_object_unref (obj);
+
+fail_free_params:
+ for (p = params, i = 1; i < n_keys; i++, p++) {
+ g_value_unset (&p->value);
+ }
+ g_free (params);
+
+fail_free_keys:
+ g_strfreev (keys);
+
+fail_unref_class:
+ g_type_class_unref (klass);
+
+fail_free_type_name:
+ g_free (type_name);
+
+ return ret;
+}
+
+static gboolean
+load_keyfile (GESFormatter * keyfile_formatter, GESTimeline * timeline)
+{
+ GKeyFile *kf;
+ GError *error = NULL;
+ gboolean ret = TRUE;
+ gchar **groups;
+ gsize n_groups, i;
+ GESTimelineLayer *cur_layer = NULL;
+
+ kf = g_key_file_new ();
+ if (!g_key_file_load_from_data (kf, keyfile_formatter->data,
+ keyfile_formatter->length, G_KEY_FILE_NONE, &error)) {
+ ret = FALSE;
+ GST_ERROR (error->message);
+ GST_INFO (keyfile_formatter->data);
+ goto free_kf;
+ }
+
+ if (!(groups = g_key_file_get_groups (kf, &n_groups))) {
+ goto free_kf;
+ }
+
+ for (i = 0; i < n_groups; i++) {
+ gchar *group = groups[i];
+
+ if (g_str_has_prefix (group, "Track")) {
+ if (!create_track (kf, group, timeline)) {
+ GST_ERROR ("couldn't create object for %s", group);
+ ret = FALSE;
+ break;
+ }
+ }
+
+ else if (g_str_has_prefix (group, "Layer")) {
+ if (!(cur_layer = create_layer (kf, group, timeline))) {
+ GST_ERROR ("couldn't create object for %s", group);
+ ret = FALSE;
+ break;
+ }
+ }
+
+ else if (g_str_has_prefix (group, "Object")) {
+ if (!cur_layer) {
+ GST_ERROR ("Group %s occurs outside of Layer", group);
+ ret = FALSE;
+ break;
+ }
+
+ if (!create_object (kf, group, cur_layer)) {
+ GST_ERROR ("couldn't create object for %s", group);
+ ret = FALSE;
+ break;
+ }
+ }
+
+ else if (g_str_equal (group, "General")) {
+ continue;
+ }
+
+ else {
+ GST_ERROR ("Unrecognized group name %s", group);
+ ret = FALSE;
+ break;
+ }
+ }
+
+ g_strfreev (groups);
+
+free_kf:
+ g_key_file_free (kf);
+ return ret;
+}
--- /dev/null
+/* GStreamer Editing Services
+ * Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk>
+ * 2010 Nokia Corporation
+ *
+ * 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 _GES_KEYFILE_FORMATTER
+#define _GES_KEYFILE_FORMATTER
+
+#include <glib-object.h>
+#include <ges/ges-timeline.h>
+
+#define GES_TYPE_KEYFILE_FORMATTER ges_keyfile_formatter_get_type()
+
+#define GES_KEYFILE_FORMATTER(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_KEYFILE_FORMATTER, GESKeyfileFormatter))
+
+#define GES_KEYFILE_FORMATTER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_KEYFILE_FORMATTER, GESKeyfileFormatterClass))
+
+#define GES_IS_KEYFILE_FORMATTER(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_KEYFILE_FORMATTER))
+
+#define GES_IS_KEYFILE_FORMATTER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_KEYFILE_FORMATTER))
+
+#define GES_KEYFILE_FORMATTER_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_KEYFILE_FORMATTER, GESKeyfileFormatterClass))
+
+/**
+ * GESKeyfileFormatter:
+ * @parent: parent
+ *
+ * Serializes a #GESTimeline to a file using #GKeyFile
+ */
+
+struct _GESKeyfileFormatter {
+ GESFormatter parent;
+
+ /*< public >*/
+};
+
+/**
+ * GESKeyfileFormatterClass:
+ * @parent_class: parent class
+ */
+
+struct _GESKeyfileFormatterClass {
+ GESFormatterClass parent_class;
+
+ /*< public >*/
+};
+
+GType ges_keyfile_formatter_get_type (void);
+
+GESKeyfileFormatter *ges_keyfile_formatter_new (void);
+
+#endif /* _GES_KEYFILE_FORMATTER */
typedef struct _GESFormatter GESFormatter;
typedef struct _GESFormatterClass GESFormatterClass;
+typedef struct _GESKeyfileFormatter GESKeyfileFormatter;
+typedef struct _GESKeyfileFormatterClass GESKeyfileFormatterClass;
+
+
#endif /* __GES_TYPES_H__ */
#include <ges/ges-track-audio-transition.h>
#include <ges/ges-formatter.h>
+#include <ges/ges-keyfile-formatter.h>
#include <ges/ges-utils.h>
projects / platform / upstream / gstreamer.git / commitdiff