1 /* GStreamer printf extension hooks
2 * Copyright (C) 2013 Tim-Philipp Müller <tim centricular net>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "printf-extension.h"
21 #include "gst-printf.h"
22 #include <stdio.h>
23 #include <string.h>
24
25 static PrintfPointerExtensionFunc ptr_ext_func; /* NULL */
26
27 void
__gst_printf_pointer_extension_set_func(PrintfPointerExtensionFunc func)28 __gst_printf_pointer_extension_set_func (PrintfPointerExtensionFunc func)
29 {
30 /* since this is internal, we don't need to worry about thread-safety */
31 ptr_ext_func = func;
32 }
33
34 char *
__gst_printf_pointer_extension_serialize(const char * format,void * ptr)35 __gst_printf_pointer_extension_serialize (const char *format, void *ptr)
36 {
37 char *buf;
38
39 if (ptr_ext_func == NULL) {
40 buf = malloc (32);
41 memset (buf, 0, 32);
42 sprintf (buf, "%p", ptr);
43 } else {
44 /* note: we map malloc/free to g_malloc/g_free in gst-printf.h, so the
45 * fact that gstinfo gives us a glib-allocated string and the printf
46 * routines free it with free() and not g_free() should not be a problem */
47 buf = ptr_ext_func (format, ptr);
48 }
49 return buf;
50 }
51