EXPORT_C
#endif
GstTagList *
gst_tag_list_merge (const GstTagList * list1, const GstTagList * list2,
GstTagMergeMode mode)
{
g_return_val_if_fail (list1 == NULL || GST_IS_TAG_LIST (list1), NULL);
g_return_val_if_fail (list2 == NULL || GST_IS_TAG_LIST (list2), NULL);
g_return_val_if_fail (GST_TAG_MODE_IS_VALID (mode), NULL);
if (!list1 && !list2) {
return NULL;
} else if (!list1) {
return gst_tag_list_copy (list2);
} else if (!list2) {
return gst_tag_list_copy (list1);
} else {
GstTagList *ret;
ret = gst_tag_list_copy (list1);
gst_tag_list_insert (ret, list2, mode);
return ret;
}
}
/**
* gst_tag_setter_set_tag_merge_mode:
* @setter: a #GstTagSetter
* @mode: The mode with which tags are added
*
* Sets the given merge mode that is used for adding tags from events to tags
* specified by this interface. The default is #GST_TAG_MERGE_KEEP, which keeps
* the tags set with this interface and discards tags from events.
*/
void
gst_tag_setter_set_tag_merge_mode (GstTagSetter * setter, GstTagMergeMode mode)
{
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
gst_tag_setter_get_data (setter)->mode = mode;
}
/**
* gst_tag_setter_add_tag_values:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @...: more tag / GValue pairs to set
*
* Adds the given tag / GValue pairs on the setter using the given merge mode.
* The list must be terminated with NULL.
*/
void
gst_tag_setter_add_tag_values (GstTagSetter * setter, GstTagMergeMode mode,
const gchar * tag, ...)
{
va_list args;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
va_start (args, tag);
gst_tag_setter_add_tag_valist_values (setter, mode, tag, args);
va_end (args);
}
/**
* gst_tag_setter_set_tag_merge_mode:
* @setter: a #GstTagSetter
* @mode: The mode with which tags are added
*
* Sets the given merge mode that is used for adding tags from events to tags
* specified by this interface. The default is #GST_TAG_MERGE_KEEP, which keeps
* the tags set with this interface and discards tags from events.
*/
void
gst_tag_setter_set_tag_merge_mode (GstTagSetter * setter, GstTagMergeMode mode)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
g_static_mutex_lock (&data->lock);
data->mode = mode;
g_static_mutex_unlock (&data->lock);
}
/**
* gst_tag_setter_add_tag_valist_values:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @var_args: tag / GValue pairs to set
*
* Adds the given tag / GValue pairs on the setter using the given merge mode.
* The list must be terminated with NULL.
*/
void
gst_tag_setter_add_tag_valist_values (GstTagSetter * setter,
GstTagMergeMode mode, const gchar * tag, va_list var_args)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
if (!data->list)
data->list = gst_tag_list_new ();
gst_tag_list_add_valist_values (data->list, mode, tag, var_args);
}
EXPORT_C
#endif
void
gst_tag_list_add_values (GstTagList * list, GstTagMergeMode mode,
const gchar * tag, ...)
{
va_list args;
g_return_if_fail (GST_IS_TAG_LIST (list));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
g_return_if_fail (tag != NULL);
va_start (args, tag);
gst_tag_list_add_valist_values (list, mode, tag, args);
va_end (args);
}
/**
* gst_tag_setter_merge_tags:
* @setter: a #GstTagSetter
* @list: a tag list to merge from
* @mode: the mode to merge with
*
* Merges the given list into the setter's list using the given mode.
*/
void
gst_tag_setter_merge_tags (GstTagSetter * setter, const GstTagList * list,
GstTagMergeMode mode)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
g_return_if_fail (GST_IS_TAG_LIST (list));
data = gst_tag_setter_get_data (setter);
if (data->list == NULL) {
if (mode != GST_TAG_MERGE_KEEP_ALL)
data->list = gst_tag_list_copy (list);
} else {
gst_tag_list_insert (data->list, list, mode);
}
}
/**
* gst_tag_setter_add_tag_value:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @value: GValue to set for the tag
*
* Adds the given tag / GValue pair on the setter using the given merge mode.
*
* Since: 0.10.24
*/
void
gst_tag_setter_add_tag_value (GstTagSetter * setter,
GstTagMergeMode mode, const gchar * tag, const GValue * value)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
g_static_mutex_lock (&data->lock);
if (!data->list)
data->list = gst_tag_list_new ();
gst_tag_list_add_value (data->list, mode, tag, value);
g_static_mutex_unlock (&data->lock);
}
EXPORT_C
#endif
void
gst_tag_list_insert (GstTagList * into, const GstTagList * from,
GstTagMergeMode mode)
{
GstTagCopyData data;
g_return_if_fail (GST_IS_TAG_LIST (into));
g_return_if_fail (GST_IS_TAG_LIST (from));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data.list = (GstStructure *) into;
data.mode = mode;
if (mode == GST_TAG_MERGE_REPLACE_ALL) {
gst_structure_remove_all_fields (data.list);
}
gst_structure_foreach ((GstStructure *) from, gst_tag_list_copy_foreach,
&data);
}
EXPORT_C
#endif
void
gst_tag_list_add_valist (GstTagList * list, GstTagMergeMode mode,
const gchar * tag, va_list var_args)
{
GstTagInfo *info;
GQuark quark;
gchar *error = NULL;
g_return_if_fail (GST_IS_TAG_LIST (list));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
g_return_if_fail (tag != NULL);
while (tag != NULL) {
GValue value = { 0, };
quark = g_quark_from_string (tag);
info = gst_tag_lookup (quark);
if (info == NULL)
g_warning ("no GstTag for %s", tag);
g_return_if_fail (info != NULL);
g_value_init (&value, info->type);
G_VALUE_COLLECT (&value, var_args, 0, &error);
if (error) {
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
/* we purposely leak the value here, it might not be
* in a sane state if an error condition occoured
*/
return;
}
gst_tag_list_add_value_internal (list, mode, quark, &value);
g_value_unset (&value);
tag = va_arg (var_args, gchar *);
}
}
EXPORT_C
#endif
void
gst_tag_list_add_valist_values (GstTagList * list, GstTagMergeMode mode,
const gchar * tag, va_list var_args)
{
GstTagInfo *info;
GQuark quark;
g_return_if_fail (GST_IS_TAG_LIST (list));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
g_return_if_fail (tag != NULL);
while (tag != NULL) {
quark = g_quark_from_string (tag);
info = gst_tag_lookup (quark);
g_return_if_fail (info != NULL);
gst_tag_list_add_value_internal (list, mode, quark, va_arg (var_args,
GValue *));
tag = va_arg (var_args, gchar *);
}
}
