Add compression support in EGPRS PUAN
This adds compression of bitmap in PUAN. The compressed bitmap
is used only if the number of bits in the bitmap does not fit in
the message and there is a gain after compression.
The algorithm is part of libosmocore and so there is dependency
on the libosmocore for compilation.
The algorithm is tested on integration setup by forcing compression.
Change-Id: Id2eec4b5eb6da0ebd24054b541b09b700b9b40ba
diff --git a/src/egprs_rlc_compression.h b/src/egprs_rlc_compression.h
index c5f0f1a..4d2501b 100644
--- a/src/egprs_rlc_compression.h
+++ b/src/egprs_rlc_compression.h
@@ -5,6 +5,7 @@
#pragma once
struct egprs_compress_node;
+#define MOD64(X) (((X) + 64) & 0x3F)
/* Singleton to manage the EGPRS compression algorithm. */
class egprs_compress
@@ -14,6 +15,9 @@
bool start, const uint8_t *orig_buf,
bitvec *dest);
egprs_compress();
+ int osmo_t4_compress(struct bitvec *bv);
+ static int compress_rbb(struct bitvec *urbb_vec, struct bitvec *crbb_vec,
+ uint8_t *uclen_crbb, uint8_t max_bits);
private:
egprs_compress_node *ones_list;