[FFmpeg-devel] [PATCH] avformat/utils: Check negative bps before shifting in ff_get_pcm_codec_id()

[chcunningham at chromium.org]

From: Chris Cunningham <chcunningham at chromium.org>

Fixes: undefined shift.
---
 libavformat/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 5f5f03e..d1e4306 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2955,7 +2955,7 @@ enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
 
 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
 {
-    if (bps > 64U)
+    if (bps <= 0 || bps > 64)
         return AV_CODEC_ID_NONE;
 
     if (flt) {
-- 
2.8.0.rc3.226.g39d4020