X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=write_common.c;h=ff8999f63eb8b67312db89d07688c93b404d05d0;hp=7c0d952108cdec23a43c3c01cfe33b9b6f37b77b;hb=03683166610b241183b3cdb311069c96144fa53e;hpb=885700289d2c7ab64c3bc5a5ab8f6aba14e27632

diff --git a/write_common.c b/write_common.c
index 7c0d9521..ff8999f6 100644
--- a/write_common.c
+++ b/write_common.c
@@ -303,3 +303,20 @@ void print_writer_helps(int detailed)
 		ggo_print_help(&w->help, detailed);
 	}
 }
+
+int prepare_writer_node(struct writer_node *wn)
+{
+	struct btr_node *btrn = wn->btrn;
+	size_t iqs;
+
+	if (btr_eof(btrn))
+		return -E_WRITE_COMMON_EOF;
+	iqs = btr_get_input_queue_size(btrn);
+	if (iqs < wn->min_iqs && !btr_no_parent(btrn))
+		return 0;
+	assert(iqs != 0);
+	/* avoid "buffer too small" errors from the decoder */
+	btr_merge(btrn, wn->min_iqs);
+	return 1;
+}
+