/**
* SECTION:gsttaglist
+ * @title: GstTagList
* @short_description: List of tags and values used to describe media metadata
*
* List of tags and values used to describe media metadata.
_("composer"),
_("person(s) who composed the recording"),
gst_tag_merge_strings_with_comma);
+ gst_tag_register_static (GST_TAG_CONDUCTOR, GST_TAG_FLAG_META,
+ G_TYPE_STRING,
+ _("conductor"),
+ _("conductor/performer refinement"), gst_tag_merge_strings_with_comma);
gst_tag_register_static (GST_TAG_DURATION, GST_TAG_FLAG_DECODED,
G_TYPE_UINT64,
_("duration"), _("length in GStreamer time units (nanoseconds)"), NULL);
gst_tag_register_static (GST_TAG_MIDI_BASE_NOTE, GST_TAG_FLAG_META,
G_TYPE_UINT,
_("midi-base-note"), _("Midi note number of the audio track."), NULL);
+ gst_tag_register_static (GST_TAG_PRIVATE_DATA, GST_TAG_FLAG_META,
+ GST_TYPE_SAMPLE,
+ _("private-data"), _("Private data"), gst_tag_merge_use_first);
+
}
/**
}
/**
- * gst_tag_register:
+ * gst_tag_register: (skip)
* @name: the name or identifier string
* @flag: a flag describing the type of tag info
* @type: the type this data is in
g_return_if_fail (blurb != NULL);
g_return_if_fail (type != 0 && type != GST_TYPE_LIST);
- return gst_tag_register_static (g_intern_string (name), flag, type,
+ gst_tag_register_static (g_intern_string (name), flag, type,
g_intern_string (nick), g_intern_string (blurb), func);
}
/**
- * gst_tag_register_static:
+ * gst_tag_register_static: (skip)
* @name: the name or identifier string (string constant)
* @flag: a flag describing the type of tag info
* @type: the type this data is in
* Returns the human-readable name of this tag, You must not change or free
* this string.
*
- * Returns: the human-readable name of this tag
+ * Returns: (nullable): the human-readable name of this tag
*/
const gchar *
gst_tag_get_nick (const gchar * tag)
g_return_val_if_fail (tag != NULL, NULL);
info = gst_tag_lookup (tag);
- g_return_val_if_fail (info != NULL, NULL);
+ if (!info) {
+ GST_WARNING ("Unknown tag: %s", tag);
+
+ return tag;
+ }
return info->nick;
}
* Returns the human-readable description of this tag, You must not change or
* free this string.
*
- * Returns: the human-readable description of this tag
+ * Returns: (nullable): the human-readable description of this tag
*/
const gchar *
gst_tag_get_description (const gchar * tag)
/* takes ownership of the structure */
static GstTagList *
-gst_tag_list_new_internal (GstStructure * s)
+gst_tag_list_new_internal (GstStructure * s, GstTagScope scope)
{
GstTagList *tag_list;
(GstMiniObjectFreeFunction) __gst_tag_list_free);
GST_TAG_LIST_STRUCTURE (tag_list) = s;
- GST_TAG_LIST_SCOPE (tag_list) = GST_TAG_SCOPE_STREAM;
+ GST_TAG_LIST_SCOPE (tag_list) = scope;
#ifdef DEBUG_REFCOUNT
GST_CAT_TRACE (GST_CAT_TAGS, "created taglist %p", tag_list);
gst_structure_free (GST_TAG_LIST_STRUCTURE (list));
+#ifdef USE_POISONING
+ memset (list, 0xff, sizeof (GstTagListImpl));
+#endif
+
g_slice_free1 (sizeof (GstTagListImpl), list);
}
g_return_val_if_fail (GST_IS_TAG_LIST (list), NULL);
s = GST_TAG_LIST_STRUCTURE (list);
- return gst_tag_list_new_internal (gst_structure_copy (s));
+ return gst_tag_list_new_internal (gst_structure_copy (s),
+ GST_TAG_LIST_SCOPE (list));
}
/**
GstTagList *tag_list;
s = gst_structure_new_id_empty (GST_QUARK (TAGLIST));
- tag_list = gst_tag_list_new_internal (s);
+ tag_list = gst_tag_list_new_internal (s, GST_TAG_SCOPE_STREAM);
return tag_list;
}
*
* Serializes a tag list to a string.
*
- * Returns: a newly-allocated string, or %NULL in case of an error. The
- * string must be freed with g_free() when no longer needed.
+ * Returns: (nullable): a newly-allocated string, or %NULL in case of
+ * an error. The string must be freed with g_free() when no longer
+ * needed.
*/
gchar *
gst_tag_list_to_string (const GstTagList * list)
*
* Deserializes a tag list.
*
- * Returns: a new #GstTagList, or %NULL in case of an error.
+ * Returns: (nullable): a new #GstTagList, or %NULL in case of an
+ * error.
*/
GstTagList *
gst_tag_list_new_from_string (const gchar * str)
if (s == NULL)
return NULL;
- tag_list = gst_tag_list_new_internal (s);
+ tag_list = gst_tag_list_new_internal (s, GST_TAG_SCOPE_STREAM);
return tag_list;
}
/**
* gst_tag_list_merge:
- * @list1: first list to merge
- * @list2: second list to merge
+ * @list1: (allow-none): first list to merge
+ * @list2: (allow-none): second list to merge
* @mode: the mode to use
*
* Merges the two given lists into a new list. If one of the lists is %NULL, a
*
* Free-function: gst_tag_list_unref
*
- * Returns: (transfer full): the new list
+ * Returns: (transfer full) (nullable): the new list
*/
GstTagList *
gst_tag_list_merge (const GstTagList * list1, const GstTagList * list2,
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
+ * in a sane state if an error condition occurred
*/
return;
}
gst_tag_list_remove_tag (GstTagList * list, const gchar * tag)
{
g_return_if_fail (GST_IS_TAG_LIST (list));
+ g_return_if_fail (gst_tag_list_is_writable (list));
g_return_if_fail (tag != NULL);
gst_structure_remove_field (GST_TAG_LIST_STRUCTURE (list), tag);
* Gets the value that is at the given index for the given tag in the given
* list.
*
- * Returns: (transfer none): The GValue for the specified entry or %NULL if the
- * tag wasn't available or the tag doesn't have as many entries
+ * Returns: (transfer none) (nullable): The GValue for the specified
+ * entry or %NULL if the tag wasn't available or the tag
+ * doesn't have as many entries
*/
const GValue *
gst_tag_list_get_value_index (const GstTagList * list, const gchar * tag,
return TRUE;
}
-/* FIXME 0.11: this whole merge function business is overdesigned, and the
+/* FIXME 2.0: this whole merge function business is overdesigned, and the
* _get_foo() API is misleading as well - how many application developers will
* expect gst_tag_list_get_string (list, GST_TAG_ARTIST, &val) might return a
* string with multiple comma-separated artists? _get_foo() should just be
*/
TAG_MERGE_FUNCS (uint, guint, TRUE);
/**
+ * gst_tag_list_get_int64:
+ * @list: a #GstTagList to get the tag from
+ * @tag: tag to read out
+ * @value: (out): location for the result
+ *
+ * Copies the contents for the given tag into the value, merging multiple values
+ * into one if multiple values are associated with the tag.
+ *
+ * Returns: %TRUE, if a value was copied, %FALSE if the tag didn't exist in the
+ * given list.
+ */
+/**
* gst_tag_list_get_int64_index:
* @list: a #GstTagList to get the tag from
* @tag: tag to read out
TAG_MERGE_FUNCS (string, gchar *, (*value != NULL));
/*
- *FIXME 0.11: Instead of _peek (non-copy) and _get (copy), we could have
+ *FIXME 2.0: Instead of _peek (non-copy) and _get (copy), we could have
* _get (non-copy) and _dup (copy) for strings, seems more
* widely used
*/
if (!gst_tag_list_copy_value (&v, list, tag))
return FALSE;
- g_return_val_if_fail (GST_VALUE_HOLDS_DATE_TIME (&v), FALSE);
-
*value = (GstDateTime *) g_value_dup_boxed (&v);
g_value_unset (&v);
return (*value != NULL);