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We pass the ownership of current_string to the list of wrong strings, it will be cleared then. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3428>
210 lines
5.5 KiB
C
210 lines
5.5 KiB
C
/* GStreamer Editing Services
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*
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* Copyright (C) <2015> Mathieu Duponchelle <mathieu.duponchelle@opencreed.com>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ges-structure-parser.h"
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#include <ges/ges.h>
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G_DEFINE_TYPE (GESStructureParser, ges_structure_parser, G_TYPE_OBJECT);
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static void
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ges_structure_parser_init (GESStructureParser * self)
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{
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}
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static void
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_finalize (GObject * self)
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{
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GESStructureParser *parser = GES_STRUCTURE_PARSER (self);
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g_list_free_full (parser->structures, (GDestroyNotify) gst_structure_free);
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g_list_free_full (parser->wrong_strings, (GDestroyNotify) g_free);
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G_OBJECT_CLASS (ges_structure_parser_parent_class)->finalize (self);
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}
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static void
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ges_structure_parser_class_init (GESStructureParserClass * klass)
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{
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G_OBJECT_CLASS (klass)->finalize = _finalize;
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}
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void
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ges_structure_parser_parse_string (GESStructureParser * self,
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const gchar * text, gboolean is_symbol)
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{
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gchar *new_string = NULL;
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if (self->current_string) {
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new_string = g_strconcat (self->current_string, text, NULL);
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} else if (is_symbol) {
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new_string = g_strdup (text);
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}
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g_free (self->current_string);
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self->current_string = new_string;
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}
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void
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ges_structure_parser_parse_value (GESStructureParser * self, const gchar * text)
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{
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/* text starts with '=' */
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gchar *val_string = g_strconcat ("=(string)", text + 1, NULL);
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ges_structure_parser_parse_string (self, val_string, FALSE);
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g_free (val_string);
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}
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void
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ges_structure_parser_parse_default (GESStructureParser * self,
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const gchar * text)
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{
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gchar *new_string = NULL;
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if (self->add_comma && self->current_string) {
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new_string = g_strconcat (self->current_string, ",", text, NULL);
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g_free (self->current_string);
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self->current_string = new_string;
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self->add_comma = FALSE;
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} else {
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ges_structure_parser_parse_string (self, text, FALSE);
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}
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}
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void
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ges_structure_parser_parse_whitespace (GESStructureParser * self)
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{
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self->add_comma = TRUE;
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}
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static void
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_finish_structure (GESStructureParser * self)
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{
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GstStructure *structure;
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if (!self->current_string)
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return;
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structure = gst_structure_new_from_string (self->current_string);
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if (structure == NULL) {
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GST_ERROR ("Could not parse %s", self->current_string);
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self->wrong_strings = g_list_append (self->wrong_strings,
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self->current_string);
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self->current_string = NULL;
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return;
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}
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self->structures = g_list_append (self->structures, structure);
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g_free (self->current_string);
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self->current_string = NULL;
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}
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void
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ges_structure_parser_end_of_file (GESStructureParser * self)
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{
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_finish_structure (self);
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}
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void
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ges_structure_parser_parse_symbol (GESStructureParser * self,
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const gchar * symbol)
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{
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_finish_structure (self);
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while (*symbol == ' ' || *symbol == '+')
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symbol++;
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self->add_comma = FALSE;
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if (!g_ascii_strncasecmp (symbol, "clip", 4))
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ges_structure_parser_parse_string (self, "clip, uri=(string)", TRUE);
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else if (!g_ascii_strncasecmp (symbol, "test-clip", 9))
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ges_structure_parser_parse_string (self, "test-clip, pattern=(string)",
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TRUE);
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else if (!g_ascii_strncasecmp (symbol, "effect", 6))
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ges_structure_parser_parse_string (self, "effect, bin-description=(string)",
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TRUE);
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else if (!g_ascii_strncasecmp (symbol, "transition", 10))
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ges_structure_parser_parse_string (self, "transition, type=(string)", TRUE);
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else if (!g_ascii_strncasecmp (symbol, "title", 5))
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ges_structure_parser_parse_string (self, "title, text=(string)", TRUE);
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else if (!g_ascii_strncasecmp (symbol, "track", 5))
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ges_structure_parser_parse_string (self, "track, type=(string)", TRUE);
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else if (!g_ascii_strncasecmp (symbol, "keyframes", 8)) {
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ges_structure_parser_parse_string (self,
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"keyframes, property-name=(string)", TRUE);
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}
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}
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void
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ges_structure_parser_parse_setter (GESStructureParser * self,
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const gchar * setter)
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{
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gchar *parsed_setter;
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_finish_structure (self);
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while (*setter == '-' || *setter == ' ')
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setter++;
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while (*setter != '-')
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setter++;
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setter++;
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parsed_setter = g_strdup_printf ("set-property, property=(string)%s, "
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"value=(string)", setter);
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self->add_comma = FALSE;
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ges_structure_parser_parse_string (self, parsed_setter, TRUE);
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g_free (parsed_setter);
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}
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GESStructureParser *
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ges_structure_parser_new (void)
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{
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return (g_object_new (GES_TYPE_STRUCTURE_PARSER, NULL));
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}
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GError *
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ges_structure_parser_get_error (GESStructureParser * self)
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{
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GList *tmp;
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GError *error = NULL;
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GString *msg = NULL;
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if (self->wrong_strings == NULL)
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return NULL;
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msg = g_string_new ("Could not parse: ");
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for (tmp = self->wrong_strings; tmp; tmp = tmp->next) {
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g_string_append_printf (msg, " %s", (gchar *) tmp->data);
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}
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error = g_error_new_literal (GES_ERROR, 0, msg->str);
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g_string_free (msg, TRUE);
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return error;
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}
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