func: static av_cold int dnxhd_decode_close(AVCodecContext *avctx)
  
  {
  
      DNXHDContext *ctx = avctx->priv_data;
  
  
  
      ff_free_vlc(&ctx->ac_vlc);
  
      ff_free_vlc(&ctx->dc_vlc);
  
      ff_free_vlc(&ctx->run_vlc);
  
  
  
      av_freep(&ctx->mb_scan_index);
  
      av_freep(&ctx->rows);
  
  
  
      return 0;
  
  }
  