[FFmpeg-cvslog] lavfi/vf_drawtext.c: fix CID 1485003

[Ting Fu]

ffmpeg | branch: master | Ting Fu <ting.fu at intel.com> | Fri Jun  4 10:22:46 2021 +0800| [e01bf559dfaeaadac8112af4ad4689901a344b92] | committer: Guo Yejun

lavfi/vf_drawtext.c: fix CID 1485003

CID 1485003: Memory - illegal accesses (UNINIT)
Using uninitialized value "sd".

Signed-off-by: Ting Fu <ting.fu at intel.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e01bf559dfaeaadac8112af4ad4689901a344b92
---

 libavfilter/vf_drawtext.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c
index 382d589e26..c4c09894e4 100644
--- a/libavfilter/vf_drawtext.c
+++ b/libavfilter/vf_drawtext.c
@@ -1554,7 +1554,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
     AVFrameSideData *sd;
     int loop = 1;
 
-    if (s->text_source == AV_FRAME_DATA_DETECTION_BBOXES && sd) {
+    if (s->text_source == AV_FRAME_DATA_DETECTION_BBOXES) {
         sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DETECTION_BBOXES);
         if (sd) {
             header = (AVDetectionBBoxHeader *)sd->data;