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v29tx.c File Reference

#include <stdio.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include "floating_fudge.h"
#include "spandsp/telephony.h"
#include "spandsp/fast_convert.h"
#include "spandsp/logging.h"
#include "spandsp/complex.h"
#include "spandsp/vector_float.h"
#include "spandsp/complex_vector_float.h"
#include "spandsp/async.h"
#include "spandsp/dds.h"
#include "spandsp/power_meter.h"
#include "spandsp/v29tx.h"
#include "spandsp/private/logging.h"
#include "spandsp/private/v29tx.h"
#include "v29tx_constellation_maps.h"
#include "v29tx_floating_rrc.h"

Defines

#define CARRIER_NOMINAL_FREQ   1700.0f
#define V29_TRAINING_SEG_TEP   0
#define V29_TRAINING_SEG_1   (V29_TRAINING_SEG_TEP + 480)
#define V29_TRAINING_SEG_2   (V29_TRAINING_SEG_1 + 48)
#define V29_TRAINING_SEG_3   (V29_TRAINING_SEG_2 + 128)
#define V29_TRAINING_SEG_4   (V29_TRAINING_SEG_3 + 384)
#define V29_TRAINING_END   (V29_TRAINING_SEG_4 + 48)
#define V29_TRAINING_SHUTDOWN_END   (V29_TRAINING_END + 32)

Functions

 SPAN_DECLARE (int)
 Release a V.8 context.
 SPAN_DECLARE (void)
 Cleanup a T.30 context if the call terminates.
 SPAN_DECLARE (logging_state_t *)
 Get a pointer to the logging context associated with a T.38 context.
 SPAN_DECLARE (v29_tx_state_t *)

Detailed Description


Function Documentation

SPAN_DECLARE logging_state_t  ) 
 

Get a pointer to the logging context associated with a T.38 context.

Get a pointer to the logging context associated with a FAX context.

Parameters:
s The FAX context.
Returns:
A pointer to the logging context, or NULL.

SPAN_DECLARE void   ) 
 

Cleanup a T.30 context if the call terminates.

Log the list of supported modulations.

Parameters:
s The V.8 context.
modulation_schemes The list of supported modulations.

SPAN_DECLARE int   ) 
 

Release a V.8 context.

Compress a block of octets.

Parameters:
s The V.42bis context.
buf The data to be compressed.
len The length of the data buffer.
Returns:
0


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