Portability fix: Adding local partial copy of libosmocore (TODO: minimize it)
diff --git a/lib/decoding/osmocom/codec/codec.h b/lib/decoding/osmocom/codec/codec.h
new file mode 100644
index 0000000..6a1bf9f
--- /dev/null
+++ b/lib/decoding/osmocom/codec/codec.h
@@ -0,0 +1,81 @@
+/*! \file codec.h */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <osmocom/core/utils.h>
+
+/* TS 101318 Chapter 5.1: 260 bits + 4bit sig */
+#define GSM_FR_BYTES 33
+/* TS 101318 Chapter 5.2: 112 bits, no sig */
+#define GSM_HR_BYTES 14
+/* TS 101318 Chapter 5.3: 244 bits + 4bit sig */
+#define GSM_EFR_BYTES 31
+
+extern const uint16_t gsm610_bitorder[]; /* FR */
+extern const uint16_t gsm620_unvoiced_bitorder[]; /* HR unvoiced */
+extern const uint16_t gsm620_voiced_bitorder[]; /* HR voiced */
+extern const uint16_t gsm660_bitorder[]; /* EFR */
+
+extern const uint16_t gsm690_12_2_bitorder[]; /* AMR 12.2 kbits */
+extern const uint16_t gsm690_10_2_bitorder[]; /* AMR 10.2 kbits */
+extern const uint16_t gsm690_7_95_bitorder[]; /* AMR 7.95 kbits */
+extern const uint16_t gsm690_7_4_bitorder[]; /* AMR 7.4 kbits */
+extern const uint16_t gsm690_6_7_bitorder[]; /* AMR 6.7 kbits */
+extern const uint16_t gsm690_5_9_bitorder[]; /* AMR 5.9 kbits */
+extern const uint16_t gsm690_5_15_bitorder[]; /* AMR 5.15 kbits */
+extern const uint16_t gsm690_4_75_bitorder[]; /* AMR 4.75 kbits */
+
+extern const struct value_string osmo_amr_type_names[];
+
+enum osmo_amr_type {
+ AMR_4_75 = 0,
+ AMR_5_15 = 1,
+ AMR_5_90 = 2,
+ AMR_6_70 = 3,
+ AMR_7_40 = 4,
+ AMR_7_95 = 5,
+ AMR_10_2 = 6,
+ AMR_12_2 = 7,
+ AMR_SID = 8,
+ AMR_GSM_EFR_SID = 9,
+ AMR_TDMA_EFR_SID = 10,
+ AMR_PDC_EFR_SID = 11,
+ AMR_NO_DATA = 15,
+};
+
+enum osmo_amr_quality {
+ AMR_BAD = 0,
+ AMR_GOOD = 1
+};
+
+/*! Check if given AMR Frame Type is a speech frame
+ * \param[in] ft AMR Frame Type
+ * \returns true if AMR with given Frame Type contains voice, false otherwise
+ */
+static inline bool osmo_amr_is_speech(enum osmo_amr_type ft)
+{
+ switch (ft) {
+ case AMR_4_75:
+ case AMR_5_15:
+ case AMR_5_90:
+ case AMR_6_70:
+ case AMR_7_40:
+ case AMR_7_95:
+ case AMR_10_2:
+ case AMR_12_2:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool osmo_fr_check_sid(const uint8_t *rtp_payload, size_t payload_len);
+bool osmo_hr_check_sid(const uint8_t *rtp_payload, size_t payload_len);
+int osmo_amr_rtp_enc(uint8_t *payload, uint8_t cmr, enum osmo_amr_type ft,
+ enum osmo_amr_quality bfi);
+int osmo_amr_rtp_dec(const uint8_t *payload, int payload_len, uint8_t *cmr,
+ int8_t *cmi, enum osmo_amr_type *ft,
+ enum osmo_amr_quality *bfi, int8_t *sti);