Changed picture_fifo_Pop/picture_pool_Get to set picture_t::p_next to NULL.

src/misc/picture_fifo.c

@@ -62,6 +62,7 @@ static picture_t *PictureFifoPop(picture_fifo_t *fifo)
         fifo->first = picture->p_next;
         if (!fifo->first)
             fifo->last_ptr = &fifo->first;
+        picture->p_next = NULL;
     }
     return picture;
 }

src/misc/picture_pool.c

@@ -223,6 +223,7 @@ picture_t *picture_pool_Get(picture_pool_t *pool)
             continue;
 
         /* */
+        picture->p_next = NULL;
         picture->p_release_sys->tick = pool->tick++;
         picture_Hold(picture);
         return picture;

src/video_output/video_output.c

@@ -401,7 +401,6 @@ picture_t *vout_GetPicture(vout_thread_t *vout)
     picture_t *picture = picture_pool_Get(vout->p->decoder_pool);
     if (picture) {
         picture_Reset(picture);
-        picture->p_next = NULL;
         VideoFormatCopyCropAr(&picture->format, &vout->p->original);
     }
     vlc_mutex_unlock(&vout->p->picture_lock);