[FFmpeg-devel] [PATCH] v4l2_m2m: Fix integer overflow in timestamp handling

[Mark Thompson]

---
struct timeval elements are not big enough in a 32-bit ABI.


 libavcodec/v4l2_buffers.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/v4l2_buffers.c b/libavcodec/v4l2_buffers.c
index 8e4d4d1..aef911f 100644
--- a/libavcodec/v4l2_buffers.c
+++ b/libavcodec/v4l2_buffers.c
@@ -69,7 +69,8 @@ static inline uint64_t v4l2_get_pts(V4L2Buffer *avbuf)
     int64_t v4l2_pts;
 
     /* convert pts back to encoder timebase */
-    v4l2_pts = avbuf->buf.timestamp.tv_sec * USEC_PER_SEC + avbuf->buf.timestamp.tv_usec;
+    v4l2_pts = (int64_t)avbuf->buf.timestamp.tv_sec * USEC_PER_SEC +
+                        avbuf->buf.timestamp.tv_usec;
 
     return av_rescale_q(v4l2_pts, v4l2_timebase, s->avctx->time_base);
 }
-- 
2.7.4