#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <osmocom/core/bits.h>
#include <osmocom/core/conv.h>
#include <osmocom/core/utils.h>
#include <osmocom/coding/gsm0503_amr_dtx.h>
#include <osmocom/coding/gsm0503_parity.h>
#include <osmocom/gsm/gsm0503.h>

Functions
static bool	detect_afs_id_marker (int n_errors, int n_bits_total, const ubit_t ubits, uint8_t offset, uint8_t count, const ubit_t id_marker, uint8_t id_marker_len)

static bool	detect_ahs_id_marker (int n_errors, int n_bits_total, const ubit_t ubits, const ubit_t id_marker)

static bool	detect_interleaved_ahs_id_marker (int n_errors, int n_bits_total, const ubit_t ubits, uint8_t offset, uint8_t n_bits, const ubit_t id_marker, uint8_t id_marker_len)

static bool	detect_afs_sid_first (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_afs_sid_update (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_afs_onset (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_sid_update (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_sid_first_p1 (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_sid_first_p2 (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_onset (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_sid_first_inh (int n_errors, int n_bits_total, const ubit_t *ubits)

static bool	detect_ahs_sid_update_inh (int n_errors, int n_bits_total, const ubit_t *ubits)

enum gsm0503_amr_dtx_frames	gsm0503_detect_afs_dtx_frame (int n_errors, int n_bits_total, const ubit_t *ubits)
	Detect FR AMR DTX frame in unmapped, deinterleaved frame bits. More...

enum gsm0503_amr_dtx_frames	gsm0503_detect_ahs_dtx_frame (int n_errors, int n_bits_total, const ubit_t *ubits)
	Detect HR AMR DTX frame in unmapped, deinterleaved frame bits. More...

Variables
static const ubit_t	id_marker_1 [] = { 1, 0, 1, 1, 0, 0, 0, 0, 1 }

static const ubit_t	id_marker_0 [] = { 0, 1, 0, 0, 1, 1, 1, 1, 0 }

static const ubit_t	codec_mode_1_sid [] = { 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0 }

static const ubit_t	codec_mode_2_sid [] = { 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0 }

static const ubit_t	codec_mode_3_sid [] = { 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1 }

static const ubit_t	codec_mode_4_sid [] = { 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1 }

const struct value_string	gsm0503_amr_dtx_frame_names []

Function Documentation

static bool detect_afs_id_marker	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits,
		uint8_t	offset,
		uint8_t	count,
		const ubit_t *	id_marker,
		uint8_t	id_marker_len
	)

static

Referenced by detect_afs_onset(), detect_afs_sid_first(), and detect_afs_sid_update().

static bool detect_afs_onset	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References codec_mode_1_sid, codec_mode_2_sid, codec_mode_3_sid, codec_mode_4_sid, and detect_afs_id_marker().

Referenced by gsm0503_detect_afs_dtx_frame().

static bool detect_afs_sid_first	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_afs_id_marker(), and id_marker_0.

Referenced by gsm0503_detect_afs_dtx_frame().

static bool detect_afs_sid_update	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_afs_id_marker(), and id_marker_0.

Referenced by gsm0503_detect_afs_dtx_frame().

static bool detect_ahs_id_marker	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits,
		const ubit_t *	id_marker
	)

static

Referenced by detect_ahs_sid_first_p1(), and detect_ahs_sid_update().

static bool detect_ahs_onset	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References codec_mode_1_sid, codec_mode_2_sid, codec_mode_3_sid, codec_mode_4_sid, and detect_interleaved_ahs_id_marker().

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_ahs_sid_first_inh	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_interleaved_ahs_id_marker(), and id_marker_1.

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_ahs_sid_first_p1	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_ahs_id_marker(), and id_marker_0.

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_ahs_sid_first_p2	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References codec_mode_1_sid, codec_mode_2_sid, codec_mode_3_sid, codec_mode_4_sid, and detect_interleaved_ahs_id_marker().

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_ahs_sid_update	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_ahs_id_marker(), and id_marker_1.

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_ahs_sid_update_inh	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits
	)

static

References detect_interleaved_ahs_id_marker(), and id_marker_0.

Referenced by gsm0503_detect_ahs_dtx_frame().

static bool detect_interleaved_ahs_id_marker	(	int *	n_errors,
		int *	n_bits_total,
		const ubit_t *	ubits,
		uint8_t	offset,
		uint8_t	n_bits,
		const ubit_t *	id_marker,
		uint8_t	id_marker_len
	)

static

Referenced by detect_ahs_onset(), detect_ahs_sid_first_inh(), detect_ahs_sid_first_p2(), and detect_ahs_sid_update_inh().

Variable Documentation

const ubit_t codec_mode_1_sid[] = { 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0 }

static

Referenced by detect_afs_onset(), detect_ahs_onset(), and detect_ahs_sid_first_p2().

const ubit_t codec_mode_2_sid[] = { 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0 }

static

Referenced by detect_afs_onset(), detect_ahs_onset(), and detect_ahs_sid_first_p2().

const ubit_t codec_mode_3_sid[] = { 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1 }

static

Referenced by detect_afs_onset(), detect_ahs_onset(), and detect_ahs_sid_first_p2().

const ubit_t codec_mode_4_sid[] = { 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1 }

static

Referenced by detect_afs_onset(), detect_ahs_onset(), and detect_ahs_sid_first_p2().

const ubit_t id_marker_0[] = { 0, 1, 0, 0, 1, 1, 1, 1, 0 }

static

Referenced by detect_afs_sid_first(), detect_afs_sid_update(), detect_ahs_sid_first_p1(), and detect_ahs_sid_update_inh().

const ubit_t id_marker_1[] = { 1, 0, 1, 1, 0, 0, 0, 0, 1 }

static

Referenced by detect_ahs_sid_first_inh(), and detect_ahs_sid_update().

Functions

Variables

Function Documentation

Variable Documentation