Merge commit '0b1bd1b2'

* commit '0b1bd1b2':
  lavd: Drop unneeded av_init_packet()s

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

libavdevice/v4l2.c

@@ -979,7 +979,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #endif
     int res;
 
-    av_init_packet(pkt);
     if ((res = mmap_read_frame(ctx, pkt)) < 0) {
         return res;
     }

libavdevice/x11grab.c

@@ -544,7 +544,6 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
       s->time_frame += INT64_C(1000000);
     } while ((s->time_frame * av_q2d(s->time_base) - curtime) <= 0);
 
-    av_init_packet(pkt);
     pkt->data = image->data;
     pkt->size = s->frame_size;
     pkt->pts  = curtime;