[FFmpeg-cvslog] overlay: do not leak x/y expressions.

[Nicolas George]

ffmpeg | branch: master | Nicolas George <nicolas.george at normalesup.org> | Thu Jan 12 19:18:13 2012 +0100| [bbf372e1457a1cde5de8df8bdf930560bc9c9631] | committer: Nicolas George

overlay: do not leak x/y expressions.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bbf372e1457a1cde5de8df8bdf930560bc9c9631
---

 libavfilter/vf_overlay.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c
index 062783e..38e8644 100644
--- a/libavfilter/vf_overlay.c
+++ b/libavfilter/vf_overlay.c
@@ -115,12 +115,14 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
     av_opt_set_defaults(over);
 
     if (expr = av_strtok(args1, ":", &bufptr)) {
+        av_free(over->x_expr);
         if (!(over->x_expr = av_strdup(expr))) {
             ret = AVERROR(ENOMEM);
             goto end;
         }
     }
     if (expr = av_strtok(NULL, ":", &bufptr)) {
+        av_free(over->y_expr);
         if (!(over->y_expr = av_strdup(expr))) {
             ret = AVERROR(ENOMEM);
             goto end;