[FFmpeg-cvslog] avcodec/movtextenc: Fix undefined left shifts outside the range of int

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Sat Oct 17 05:00:13 2020 +0200| [2f9fc35028364b0140fd6e0d2e4dbaffebed1acd] | committer: Andreas Rheinhardt

avcodec/movtextenc: Fix undefined left shifts outside the range of int

Reviewed-by: Philip Langdale <philipl at overt.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2f9fc35028364b0140fd6e0d2e4dbaffebed1acd
---

 libavcodec/movtextenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/movtextenc.c b/libavcodec/movtextenc.c
index 73d998d080..42fdf98042 100644
--- a/libavcodec/movtextenc.c
+++ b/libavcodec/movtextenc.c
@@ -45,7 +45,7 @@
 #define DEFAULT_STYLE_COLOR    0xffffffff
 #define DEFAULT_STYLE_FLAG     0x00
 
-#define BGR_TO_RGB(c) (((c) & 0xff) << 16 | ((c) & 0xff00) | (((c) >> 16) & 0xff))
+#define BGR_TO_RGB(c) (((c) & 0xff) << 16 | ((c) & 0xff00) | (((uint32_t)(c) >> 16) & 0xff))
 #define FONTSIZE_SCALE(s,fs) ((fs) * (s)->font_scale_factor + 0.5)
 #define av_bprint_append_any(buf, data, size)   av_bprint_append_data(buf, ((const char*)data), size)