mpeg4videodec: remove a write-only variable from MpegEncContext

libavcodec/mpeg4videodec.c

@@ -1791,7 +1791,7 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
             s->sprite_warping_accuracy  = get_bits(gb, 2);
             s->sprite_brightness_change = get_bits1(gb);
             if (ctx->vol_sprite_usage == STATIC_SPRITE)
-                s->low_latency_sprite = get_bits1(gb);
+                skip_bits1(gb); // low_latency_sprite
         }
         // FIXME sadct disable bit if verid!=1 && shape not rect
 

libavcodec/mpegvideo.h

@@ -596,7 +596,6 @@ typedef struct MpegEncContext {
     int reduced_res_vop;
     int aspect_ratio_info; //FIXME remove
     int sprite_warping_accuracy;
-    int low_latency_sprite;
     int data_partitioning;           ///< data partitioning flag from header
     int partitioned_frame;           ///< is current frame partitioned
     int low_delay;                   ///< no reordering needed / has no b-frames