gstreamer/tools/utils.c

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/* GStreamer Editing Services
* Copyright (C) 2015 Mathieu Duponchelle <mathieu.duponchelle@opencreed.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <glib/gprintf.h>
#include <string.h>
#include <gst/gst.h>
#include "utils.h"
#define IS_ALPHANUM(c) (g_ascii_isalnum((c)) || ((c) == '-') || ((c) == '+'))
/* g_free after usage */
static gchar *
_sanitize_argument (gchar * arg)
{
gboolean has_non_alphanum = FALSE;
char *equal_index = strstr (arg, "=");
gchar *new_string, *tmp_string;
for (tmp_string = arg; *tmp_string != '\0'; tmp_string++) {
if (!IS_ALPHANUM (*tmp_string)) {
has_non_alphanum = TRUE;
break;
}
}
if (!has_non_alphanum)
return g_strdup (arg);
if (!equal_index)
return g_strdup_printf ("\"%s\"", arg);
tmp_string = new_string = g_malloc (sizeof (gchar) * (strlen (arg) + 3));
for (; *arg != '\0'; arg++) {
*tmp_string = *arg;
tmp_string += 1;
if (*arg == '=') {
*tmp_string = '"';
tmp_string += 1;
}
}
*tmp_string = '"';
tmp_string += 1;
*tmp_string = '\0';
return new_string;
}
gchar *
sanitize_timeline_description (int argc, char **argv)
{
gint i;
gchar *string = g_strdup (" ");
for (i = 1; i < argc; i++) {
gchar *new_string;
gchar *sanitized = _sanitize_argument (argv[i]);
new_string = g_strconcat (string, " ", sanitized, NULL);
g_free (sanitized);
g_free (string);
string = new_string;
}
return string;
}
guint
get_flags_from_string (GType type, const gchar * str_flags)
{
guint i;
gint flags = 0;
GFlagsClass *class = g_type_class_ref (type);
for (i = 0; i < class->n_values; i++) {
if (g_strrstr (str_flags, class->values[i].value_nick)) {
flags |= class->values[i].value;
}
}
g_type_class_unref (class);
return flags;
}
gchar *
ensure_uri (const gchar * location)
{
if (gst_uri_is_valid (location))
return g_strdup (location);
else
return gst_filename_to_uri (location, NULL);
}
GstEncodingProfile *
parse_encoding_profile (const gchar * format)
{
GstEncodingProfile *profile;
GValue value = G_VALUE_INIT;
g_value_init (&value, GST_TYPE_ENCODING_PROFILE);
if (!gst_value_deserialize (&value, format)) {
g_value_reset (&value);
return NULL;
}
profile = g_value_dup_object (&value);
g_value_reset (&value);
return profile;
}
void
print_enum (GType enum_type)
{
GEnumClass *enum_class = G_ENUM_CLASS (g_type_class_ref (enum_type));
guint i;
for (i = 0; i < enum_class->n_values; i++) {
g_printf ("%s\n", enum_class->values[i].value_nick);
}
g_type_class_unref (enum_class);
}