diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index 74fec51203..47241e47a1 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -861,7 +861,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #endif
     int res;
 
-    av_init_packet(pkt);
     if ((res = mmap_read_frame(s1, pkt)) < 0) {
         return res;
     }
diff --git a/libavdevice/x11grab.c b/libavdevice/x11grab.c
index da2bfa04ec..60e2560d6b 100644
--- a/libavdevice/x11grab.c
+++ b/libavdevice/x11grab.c
@@ -511,7 +511,6 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
         nanosleep(&ts, NULL);
     }
 
-    av_init_packet(pkt);
     pkt->data = image->data;
     pkt->size = s->frame_size;
     pkt->pts  = curtime;