[FFmpeg-cvslog] fftools/ffmpeg_filter: initialize the 'o' to silence the warning

[Jun Zhao]

ffmpeg | branch: master | Jun Zhao <barryjzhao at tencent.com> | Sat Feb 25 21:54:00 2023 +0800| [a0a0a804998da8d1a397479c9bafeb000e6be088] | committer: Jun Zhao

fftools/ffmpeg_filter: initialize the 'o' to silence the warning

silence the warning: variable 'o' is used uninitialized whenever
'&&' condition is false

Signed-off-by: Jun Zhao <barryjzhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a0a0a804998da8d1a397479c9bafeb000e6be088
---

 fftools/ffmpeg_filter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 1f5bbf6c4d..3504a3cc0a 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -362,7 +362,7 @@ fail:
 
 static int filter_opt_apply(AVFilterContext *f, const char *key, const char *val)
 {
-    const AVOption *o;
+    const AVOption *o = NULL;
     int ret;
 
     ret = av_opt_set(f, key, val, AV_OPT_SEARCH_CHILDREN);