@@ -189,14 +189,14 @@ static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *g

         int x = 0, y = 0;

         length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3);

-        if (length)

+        if (length > 0)

             x = get_xbits(gb, length);

         if (!(ctx->divx_version == 500 && ctx->divx_build == 413))

             check_marker(gb, "before sprite_trajectory");

         length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3);

-        if (length)

+        if (length > 0)

             y = get_xbits(gb, length);

         check_marker(gb, "after sprite_trajectory");