libavcodec/ansi.c:229: error: Uninitialized Value
  The value read from height was never initialized.

libavcodec/ansi.c:229:13: 
227.         if (width != avctx->width || height != avctx->height) {
228.             av_frame_unref(s->frame);
229.             avcodec_set_dimensions(avctx, width, height);
                 ^
230.             ret = ff_get_buffer(avctx, s->frame, AV_GET_BUFFER_FLAG_REF);
231.             if (ret < 0) {
