func: static av_cold int shorten_decode_close(AVCodecContext *avctx)
  
  {
  
      ShortenContext *s = avctx->priv_data;
  
      int i;
  
  
  
      for (i = 0; i < s->channels; i++) {
  
          s->decoded[i] -= s->nwrap;
  
          av_freep(&s->decoded[i]);
  
          av_freep(&s->offset[i]);
  
      }
  
      av_freep(&s->bitstream);
  
      av_freep(&s->coeffs);
  
  
  
      return 0;
  
  }
  