From 123671bc05060ac3f713c097d205d8122a1cc299 Mon Sep 17 00:00:00 2001
From: Thiago Santos <thiago.sousa.santos@collabora.com>
Date: Sun, 9 Oct 2011 14:21:28 -0300
Subject: [PATCH] libs: video: Add protection against null strings

Check and assert if input for gst_video_format_from_string is null.
Return GST_VIDEO_FORMAT_UNKNOWN as a fallback
---
 gst-libs/gst/video/video.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gst-libs/gst/video/video.c b/gst-libs/gst/video/video.c
index 130c980e79..13af59299c 100644
--- a/gst-libs/gst/video/video.c
+++ b/gst-libs/gst/video/video.c
@@ -535,6 +535,8 @@ gst_video_format_from_string (const gchar * format)
 {
   guint i;
 
+  g_return_val_if_fail (format != NULL, GST_VIDEO_FORMAT_UNKNOWN);
+
   for (i = 0; i < G_N_ELEMENTS (formats); i++) {
     if (strcmp (GST_VIDEO_FORMAT_INFO_NAME (&formats[i].info), format) == 0)
       return GST_VIDEO_FORMAT_INFO_FORMAT (&formats[i].info);