audiostuff: spandsp-0.0.6pre17/src/t38

annotate spandsp-0.0.6pre17/src/t38_core.c @ 6:22a74b01a099 default tip

implement more meaningful test program

author	Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date	Fri, 25 Jun 2010 16:14:50 +0200
parents	26cd8f1ef0b1
children

rev	line source
4 26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1 /*
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	2 * SpanDSP - a series of DSP components for telephony
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	3 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	4 * t38_core.c - Encode and decode the ASN.1 of a T.38 IFP message
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	5 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	6 * Written by Steve Underwood <steveu@coppice.org>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	7 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	8 * Copyright (C) 2005, 2006 Steve Underwood
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	9 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	10 * All rights reserved.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	11 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	12 * This program is free software; you can redistribute it and/or modify
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	13 * it under the terms of the GNU Lesser General Public License version 2.1,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	14 * as published by the Free Software Foundation.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	15 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	16 * This program is distributed in the hope that it will be useful,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	19 * GNU Lesser General Public License for more details.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	20 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	21 * You should have received a copy of the GNU Lesser General Public
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	22 * License along with this program; if not, write to the Free Software
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	24 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	25 * $Id: t38_core.c,v 1.54 2009/10/09 14:53:57 steveu Exp $
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	26 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	27
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	28 /! \file /
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	29
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	30 #if defined(HAVE_CONFIG_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	31 #include "config.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	32 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	33
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	34 #include <inttypes.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	35 #include <stdlib.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	36 #include <stdio.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	37 #include <fcntl.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	38 #include <time.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	39 #include <string.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	40 #if defined(HAVE_TGMATH_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	41 #include <tgmath.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	42 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	43 #if defined(HAVE_MATH_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	44 #include <math.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	45 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	46 #include "floating_fudge.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	47 #include <assert.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	48 #include <memory.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	49 #include <tiffio.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	50
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	51 #include "spandsp/telephony.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	52 #include "spandsp/logging.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	53 #include "spandsp/bit_operations.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	54 #include "spandsp/t38_core.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	55
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	56 #include "spandsp/private/logging.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	57 #include "spandsp/private/t38_core.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	58
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	59 #define ACCEPTABLE_SEQ_NO_OFFSET 2000
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	60
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	61 /* The times for training, the optional TEP, and the HDLC preamble, for all the modem options, in ms.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	62 Note that the preamble for V.21 is 1s+-15%, and for the other modems is 200ms+100ms. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	63 static const struct
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	64 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	65 int tep;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	66 int training;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	67 int flags;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	68 } modem_startup_time[] =
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	69 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	70 { 0, 75000, 0}, /* T38_IND_NO_SIGNAL */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	71 { 0, 0, 0}, /* T38_IND_CNG */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	72 { 0, 3000000, 0}, /* T38_IND_CED */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	73 { 0, 0, 1000000}, /* T38_IND_V21_PREAMBLE / / TODO: 850ms should be OK for this, but it causes trouble with some ATAs. Why? */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	74 { 215000, 943000, 200000}, /* T38_IND_V27TER_2400_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	75 { 215000, 708000, 200000}, /* T38_IND_V27TER_4800_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	76 { 215000, 234000, 200000}, /* T38_IND_V29_7200_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	77 { 215000, 234000, 200000}, /* T38_IND_V29_9600_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	78 { 215000, 142000, 200000}, /* T38_IND_V17_7200_SHORT_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	79 { 215000, 1393000, 200000}, /* T38_IND_V17_7200_LONG_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	80 { 215000, 142000, 200000}, /* T38_IND_V17_9600_SHORT_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	81 { 215000, 1393000, 200000}, /* T38_IND_V17_9600_LONG_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	82 { 215000, 142000, 200000}, /* T38_IND_V17_12000_SHORT_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	83 { 215000, 1393000, 200000}, /* T38_IND_V17_12000_LONG_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	84 { 215000, 142000, 200000}, /* T38_IND_V17_14400_SHORT_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	85 { 215000, 1393000, 200000}, /* T38_IND_V17_14400_LONG_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	86 { 215000, 0, 0}, /* T38_IND_V8_ANSAM */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	87 { 215000, 0, 0}, /* T38_IND_V8_SIGNAL */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	88 { 215000, 0, 0}, /* T38_IND_V34_CNTL_CHANNEL_1200 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	89 { 215000, 0, 0}, /* T38_IND_V34_PRI_CHANNEL */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	90 { 215000, 0, 0}, /* T38_IND_V34_CC_RETRAIN */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	91 { 215000, 0, 0}, /* T38_IND_V33_12000_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	92 { 215000, 0, 0} /* T38_IND_V33_14400_TRAINING */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	93 };
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	94
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	95 SPAN_DECLARE(const char *) t38_indicator_to_str(int indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	96 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	97 switch (indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	98 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	99 case T38_IND_NO_SIGNAL:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	100 return "no-signal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	101 case T38_IND_CNG:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	102 return "cng";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	103 case T38_IND_CED:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	104 return "ced";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	105 case T38_IND_V21_PREAMBLE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	106 return "v21-preamble";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	107 case T38_IND_V27TER_2400_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	108 return "v27-2400-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	109 case T38_IND_V27TER_4800_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	110 return "v27-4800-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	111 case T38_IND_V29_7200_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	112 return "v29-7200-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	113 case T38_IND_V29_9600_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	114 return "v29-9600-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	115 case T38_IND_V17_7200_SHORT_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	116 return "v17-7200-short-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	117 case T38_IND_V17_7200_LONG_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	118 return "v17-7200-long-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	119 case T38_IND_V17_9600_SHORT_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	120 return "v17-9600-short-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	121 case T38_IND_V17_9600_LONG_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	122 return "v17-9600-long-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	123 case T38_IND_V17_12000_SHORT_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	124 return "v17-12000-short-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	125 case T38_IND_V17_12000_LONG_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	126 return "v17-12000-long-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	127 case T38_IND_V17_14400_SHORT_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	128 return "v17-14400-short-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	129 case T38_IND_V17_14400_LONG_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	130 return "v17-14400-long-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	131 case T38_IND_V8_ANSAM:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	132 return "v8-ansam";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	133 case T38_IND_V8_SIGNAL:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	134 return "v8-signal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	135 case T38_IND_V34_CNTL_CHANNEL_1200:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	136 return "v34-cntl-channel-1200";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	137 case T38_IND_V34_PRI_CHANNEL:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	138 return "v34-pri-channel";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	139 case T38_IND_V34_CC_RETRAIN:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	140 return "v34-CC-retrain";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	141 case T38_IND_V33_12000_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	142 return "v33-12000-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	143 case T38_IND_V33_14400_TRAINING:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	144 return "v33-14400-training";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	145 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	146 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	147 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	148 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	149
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	150 SPAN_DECLARE(const char *) t38_data_type_to_str(int data_type)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	151 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	152 switch (data_type)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	153 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	154 case T38_DATA_V21:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	155 return "v21";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	156 case T38_DATA_V27TER_2400:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	157 return "v27-2400";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	158 case T38_DATA_V27TER_4800:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	159 return "v27-4800";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	160 case T38_DATA_V29_7200:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	161 return "v29-7200";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	162 case T38_DATA_V29_9600:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	163 return "v29-9600";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	164 case T38_DATA_V17_7200:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	165 return "v17-7200";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	166 case T38_DATA_V17_9600:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	167 return "v17-9600";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	168 case T38_DATA_V17_12000:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	169 return "v17-12000";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	170 case T38_DATA_V17_14400:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	171 return "v17-14400";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	172 case T38_DATA_V8:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	173 return "v8";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	174 case T38_DATA_V34_PRI_RATE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	175 return "v34-pri-rate";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	176 case T38_DATA_V34_CC_1200:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	177 return "v34-CC-1200";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	178 case T38_DATA_V34_PRI_CH:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	179 return "v34-pri-vh";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	180 case T38_DATA_V33_12000:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	181 return "v33-12000";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	182 case T38_DATA_V33_14400:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	183 return "v33-14400";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	184 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	185 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	186 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	187 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	188
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	189 SPAN_DECLARE(const char *) t38_field_type_to_str(int field_type)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	190 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	191 switch (field_type)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	192 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	193 case T38_FIELD_HDLC_DATA:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	194 return "hdlc-data";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	195 case T38_FIELD_HDLC_SIG_END:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	196 return "hdlc-sig-end";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	197 case T38_FIELD_HDLC_FCS_OK:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	198 return "hdlc-fcs-OK";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	199 case T38_FIELD_HDLC_FCS_BAD:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	200 return "hdlc-fcs-BAD";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	201 case T38_FIELD_HDLC_FCS_OK_SIG_END:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	202 return "hdlc-fcs-OK-sig-end";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	203 case T38_FIELD_HDLC_FCS_BAD_SIG_END:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	204 return "hdlc-fcs-BAD-sig-end";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	205 case T38_FIELD_T4_NON_ECM_DATA:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	206 return "t4-non-ecm-data";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	207 case T38_FIELD_T4_NON_ECM_SIG_END:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	208 return "t4-non-ecm-sig-end";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	209 case T38_FIELD_CM_MESSAGE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	210 return "cm-message";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	211 case T38_FIELD_JM_MESSAGE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	212 return "jm-message";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	213 case T38_FIELD_CI_MESSAGE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	214 return "ci-message";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	215 case T38_FIELD_V34RATE:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	216 return "v34rate";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	217 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	218 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	219 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	220 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	221
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	222 SPAN_DECLARE(const char *) t38_cm_profile_to_str(int profile)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	223 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	224 switch (profile)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	225 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	226 case '1':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	227 return "G3 FAX sending terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	228 case '2':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	229 return "G3 FAX receiving terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	230 case '3':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	231 return "V.34 HDX and G3 FAX sending terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	232 case '4':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	233 return "V.34 HDX and G3 FAX receiving terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	234 case '5':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	235 return "V.34 HDX-only FAX sending terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	236 case '6':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	237 return "V.34 HDX-only FAX receiving terminal";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	238 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	239 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	240 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	241 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	242
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	243 SPAN_DECLARE(const char ) t38_jm_to_str(const uint8_t data, int len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	244 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	245 if (len < 2)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	246 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	247 switch (data[0])
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	248 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	249 case 'A':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	250 switch (data[1])
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	251 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	252 case '0':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	253 return "ACK";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	254 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	255 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	256 case 'N':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	257 switch (data[1])
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	258 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	259 case '0':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	260 return "NACK: No compatible mode available";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	261 case '1':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	262 /* Response for profiles 1 and 2 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	263 return "NACK: No V.34 FAX, use G3 FAX";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	264 case '2':
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	265 /* Response for profiles 5 and 6 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	266 return "NACK: V.34 only FAX.";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	267 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	268 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	269 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	270 return "???";
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	271 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	272 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	273
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	274 SPAN_DECLARE(int) t38_v34rate_to_bps(const uint8_t *data, int len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	275 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	276 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	277 int rate;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	278
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	279 if (len < 3)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	280 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	281 for (i = 0, rate = 0; i < 3; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	282 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	283 if (data[i] < '0' \|\| data[i] > '9')
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	284 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	285 rate = rate*10 + data[i] - '0';
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	286 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	287 return rate*100;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	288 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	289 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	290
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	291 static __inline__ int classify_seq_no_offset(int expected, int actual)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	292 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	293 /* Classify the mismatch between expected and actual sequence numbers
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	294 according to whether the actual is a little in the past (late), a
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	295 little in the future (some packets have been lost), or a large jump
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	296 that represents the sequence being lost (possibly when some RTP
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	297 gets dumped to a UDPTL port). */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	298 /* This assumes they are not equal */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	299 if (expected > actual)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	300 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	301 if (expected > actual + 0x10000 - ACCEPTABLE_SEQ_NO_OFFSET)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	302 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	303 /* In the near future */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	304 return 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	305 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	306 if (expected < actual + ACCEPTABLE_SEQ_NO_OFFSET)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	307 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	308 /* In the recent past */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	309 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	310 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	311 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	312 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	313 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	314 if (expected + ACCEPTABLE_SEQ_NO_OFFSET > actual)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	315 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	316 /* In the near future */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	317 return 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	318 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	319 if (expected + 0x10000 - ACCEPTABLE_SEQ_NO_OFFSET < actual)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	320 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	321 /* In the recent past */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	322 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	323 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	324 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	325 /* There has been a huge step in the sequence */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	326 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	327 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	328 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	329
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	330 SPAN_DECLARE(int) t38_core_rx_ifp_packet(t38_core_state_t s, const uint8_t buf, int len, uint16_t seq_no)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	331 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	332 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	333 int t30_indicator;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	334 int t30_data;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	335 int ptr;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	336 int other_half;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	337 int numocts;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	338 int log_seq_no;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	339 const uint8_t *msg;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	340 unsigned int count;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	341 unsigned int t30_field_type;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	342 uint8_t type;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	343 uint8_t data_field_present;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	344 uint8_t field_data_present;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	345 char tag[20];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	346
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	347 log_seq_no = (s->check_sequence_numbers) ? seq_no : s->rx_expected_seq_no;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	348
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	349 if (span_log_test(&s->logging, SPAN_LOG_FLOW))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	350 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	351 sprintf(tag, "Rx %5d: IFP", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	352 span_log_buf(&s->logging, SPAN_LOG_FLOW, tag, buf, len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	353 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	354 if (len < 1)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	355 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	356 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Bad packet length - %d\n", log_seq_no, len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	357 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	358 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	359 if (s->check_sequence_numbers)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	360 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	361 seq_no &= 0xFFFF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	362 if (seq_no != s->rx_expected_seq_no)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	363 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	364 /* An expected value of -1 indicates this is the first received packet, and will accept
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	365 anything for that. We can't assume they will start from zero, even though they should. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	366 if (s->rx_expected_seq_no != -1)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	367 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	368 /* We have a packet with a serial number that is not in sequence. The cause could be:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	369 - 1. a repeat copy of a recent packet. Many T.38 implementations can preduce quite a lot of these.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	370 - 2. a late packet, whose point in the sequence we have already passed.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	371 - 3. the result of a hop in the sequence numbers cause by something weird from the other
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	372 end. Stream switching might cause this
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	373 - 4. missing packets.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	374
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	375 In cases 1 and 2 we need to drop this packet. In case 2 it might make sense to try to do
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	376 something with it in the terminal case. Currently we don't. For gateway operation it will be
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	377 too late to do anything useful.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	378 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	379 if (((seq_no + 1) & 0xFFFF) == s->rx_expected_seq_no)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	380 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	381 /* Assume this is truly a repeat packet, and don't bother checking its contents. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	382 span_log(&s->logging, SPAN_LOG_FLOW, "Rx %5d: Repeat packet number\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	383 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	384 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	385 /* Distinguish between a little bit out of sequence, and a huge hop. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	386 switch (classify_seq_no_offset(s->rx_expected_seq_no, seq_no))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	387 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	388 case -1:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	389 /* This packet is in the near past, so its late. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	390 span_log(&s->logging, SPAN_LOG_FLOW, "Rx %5d: Late packet - expected %d\n", log_seq_no, s->rx_expected_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	391 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	392 case 1:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	393 /* This packet is in the near future, so some packets have been lost */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	394 span_log(&s->logging, SPAN_LOG_FLOW, "Rx %5d: Missing from %d\n", log_seq_no, s->rx_expected_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	395 s->rx_missing_handler(s, s->rx_user_data, s->rx_expected_seq_no, seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	396 s->missing_packets += (seq_no - s->rx_expected_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	397 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	398 default:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	399 /* The sequence has jumped wildly */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	400 span_log(&s->logging, SPAN_LOG_FLOW, "Rx %5d: Sequence restart\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	401 s->rx_missing_handler(s, s->rx_user_data, -1, -1);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	402 s->missing_packets++;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	403 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	404 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	405 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	406 s->rx_expected_seq_no = seq_no;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	407 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	408 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	409 /* The sequence numbering is defined as rolling from 0xFFFF to 0x0000. Some implementations
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	410 of T.38 roll from 0xFFFF to 0x0001. Isn't standardisation a wonderful thing? The T.38
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	411 document specifies only a small fraction of what it should, yet then they actually nail
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	412 something properly, people ignore it. Developers in this industry truly deserves the ****
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	413 ** ** documents they have to live with. Anyway, when the far end has a
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	414 broken rollover behaviour we will get a hiccup at the rollover point. Don't worry too
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	415 much. We will just treat the message in progress as one with some missing data. With any
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	416 luck a retry will ride over the problem. Rollovers don't occur that often. It takes quite
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	417 a few FAX pages to reach rollover. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	418 s->rx_expected_seq_no = (s->rx_expected_seq_no + 1) & 0xFFFF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	419 data_field_present = (buf[0] >> 7) & 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	420 type = (buf[0] >> 6) & 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	421 ptr = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	422 switch (type)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	423 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	424 case T38_TYPE_OF_MSG_T30_INDICATOR:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	425 /* Indicators should never have a data field */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	426 if (data_field_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	427 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	428 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Data field with indicator\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	429 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	430 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	431 /* Any received indicator should mean we no longer have a valid concept of "last received data/field type". */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	432 s->current_rx_data_type = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	433 s->current_rx_field_type = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	434 if ((buf[0] & 0x20))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	435 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	436 /* Extension */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	437 if (len != 2)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	438 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	439 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for indicator (A)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	440 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	441 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	442 t30_indicator = T38_IND_V8_ANSAM + (((buf[0] << 2) & 0x3C) \| ((buf[1] >> 6) & 0x3));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	443 if (t30_indicator > T38_IND_V33_14400_TRAINING)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	444 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	445 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Unknown indicator - %d\n", log_seq_no, t30_indicator);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	446 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	447 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	448 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	449 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	450 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	451 if (len != 1)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	452 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	453 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for indicator (B)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	454 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	455 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	456 t30_indicator = (buf[0] >> 1) & 0xF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	457 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	458 span_log(&s->logging, SPAN_LOG_FLOW, "Rx %5d: indicator %s\n", log_seq_no, t38_indicator_to_str(t30_indicator));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	459 s->rx_indicator_handler(s, s->rx_user_data, t30_indicator);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	460 /* This must come after the indicator handler, so the handler routine sees the existing state of the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	461 indicator. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	462 s->current_rx_indicator = t30_indicator;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	463 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	464 case T38_TYPE_OF_MSG_T30_DATA:
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	465 if ((buf[0] & 0x20))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	466 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	467 /* Extension */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	468 if (len < 2)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	469 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	470 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (A)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	471 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	472 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	473 t30_data = T38_DATA_V8 + (((buf[0] << 2) & 0x3C) \| ((buf[1] >> 6) & 0x3));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	474 if (t30_data > T38_DATA_V33_14400)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	475 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	476 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Unknown data type - %d\n", log_seq_no, t30_data);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	477 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	478 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	479 ptr = 2;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	480 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	481 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	482 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	483 t30_data = (buf[0] >> 1) & 0xF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	484 if (t30_data > T38_DATA_V17_14400)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	485 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	486 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Unknown data type - %d\n", log_seq_no, t30_data);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	487 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	488 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	489 ptr = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	490 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	491 if (!data_field_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	492 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	493 /* This is kinda weird, but I guess if the length checks out we accept it. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	494 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Data type with no data field\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	495 if (ptr != len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	496 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	497 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (B)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	498 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	499 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	500 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	501 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	502 if (ptr >= len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	503 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	504 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (C)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	505 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	506 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	507 count = buf[ptr++];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	508 //printf("Count is %d\n", count);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	509 other_half = FALSE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	510 t30_field_type = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	511 for (i = 0; i < (int) count; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	512 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	513 if (ptr >= len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	514 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	515 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (D)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	516 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	517 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	518 if (s->t38_version == 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	519 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	520 /* The original version of T.38 with a typo in the ASN.1 spec. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	521 if (other_half)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	522 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	523 /* The lack of a data field in the previous message means
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	524 we are currently in the middle of an octet. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	525 field_data_present = (buf[ptr] >> 3) & 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	526 /* Decode field_type */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	527 t30_field_type = buf[ptr] & 0x7;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	528 ptr++;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	529 other_half = FALSE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	530 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	531 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	532 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	533 field_data_present = (buf[ptr] >> 7) & 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	534 /* Decode field_type */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	535 t30_field_type = (buf[ptr] >> 4) & 0x7;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	536 if (field_data_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	537 ptr++;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	538 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	539 other_half = TRUE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	540 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	541 if (t30_field_type > T38_FIELD_T4_NON_ECM_SIG_END)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	542 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	543 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Unknown field type - %d\n", log_seq_no, t30_field_type);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	544 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	545 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	546 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	547 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	548 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	549 field_data_present = (buf[ptr] >> 7) & 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	550 /* Decode field_type */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	551 if ((buf[ptr] & 0x40))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	552 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	553 if (ptr > len - 2)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	554 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	555 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (E)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	556 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	557 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	558 t30_field_type = T38_FIELD_CM_MESSAGE + (((buf[ptr] << 2) & 0x3C) \| ((buf[ptr + 1] >> 6) & 0x3));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	559 if (t30_field_type > T38_FIELD_V34RATE)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	560 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	561 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Unknown field type - %d\n", log_seq_no, t30_field_type);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	562 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	563 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	564 ptr += 2;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	565 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	566 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	567 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	568 t30_field_type = (buf[ptr++] >> 3) & 0x7;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	569 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	570 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	571 /* Decode field_data */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	572 if (field_data_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	573 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	574 if (ptr > len - 2)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	575 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	576 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (F)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	577 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	578 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	579 numocts = ((buf[ptr] << 8) \| buf[ptr + 1]) + 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	580 msg = buf + ptr + 2;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	581 ptr += numocts + 2;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	582 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	583 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	584 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	585 numocts = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	586 msg = NULL;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	587 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	588 if (ptr > len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	589 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	590 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (G)\n", log_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	591 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	592 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	593 span_log(&s->logging,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	594 SPAN_LOG_FLOW,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	595 "Rx %5d: (%d) data %s/%s + %d byte(s)\n",
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	596 log_seq_no,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	597 i,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	598 t38_data_type_to_str(t30_data),
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	599 t38_field_type_to_str(t30_field_type),
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	600 numocts);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	601 s->rx_data_handler(s, s->rx_user_data, t30_data, t30_field_type, msg, numocts);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	602 s->current_rx_data_type = t30_data;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	603 s->current_rx_field_type = t30_field_type;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	604 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	605 if (ptr != len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	606 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	607 if (s->t38_version != 0 \|\| ptr != (len - 1) \|\| !other_half)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	608 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	609 span_log(&s->logging, SPAN_LOG_PROTOCOL_WARNING, "Rx %5d: Invalid length for data (H) - %d %d\n", log_seq_no, ptr, len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	610 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	611 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	612 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	613 break;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	614 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	615 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	616 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	617 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	618
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	619 static int t38_encode_indicator(t38_core_state_t *s, uint8_t buf[], int indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	620 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	621 int len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	622
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	623 /* Build the IFP packet */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	624 /* Data field not present */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	625 /* Indicator packet */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	626 /* Type of indicator */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	627 if (indicator <= T38_IND_V17_14400_LONG_TRAINING)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	628 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	629 buf[0] = (uint8_t) (indicator << 1);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	630 len = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	631 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	632 else if (s->t38_version != 0 && indicator <= T38_IND_V33_14400_TRAINING)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	633 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	634 buf[0] = (uint8_t) (0x20 \| (((indicator - T38_IND_V8_ANSAM) & 0xF) >> 2));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	635 buf[1] = (uint8_t) (((indicator - T38_IND_V8_ANSAM) << 6) & 0xFF);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	636 len = 2;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	637 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	638 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	639 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	640 len = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	641 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	642 return len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	643 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	644 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	645
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	646 static int t38_encode_data(t38_core_state_t *s, uint8_t buf[], int data_type, const t38_data_field_t field[], int fields)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	647 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	648 int len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	649 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	650 int enclen;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	651 int multiplier;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	652 int data_field_no;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	653 const t38_data_field_t *q;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	654 unsigned int encoded_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	655 unsigned int fragment_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	656 unsigned int value;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	657 uint8_t data_field_present;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	658 uint8_t field_data_present;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	659 char tag[20];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	660
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	661 /* Build the IFP packet */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	662
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	663 /* There seems no valid reason why a packet would ever be generated without a data field present */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	664 data_field_present = TRUE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	665
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	666 for (data_field_no = 0; data_field_no < fields; data_field_no++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	667 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	668 span_log(&s->logging,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	669 SPAN_LOG_FLOW,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	670 "Tx %5d: (%d) data %s/%s + %d byte(s)\n",
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	671 s->tx_seq_no,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	672 data_field_no,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	673 t38_data_type_to_str(data_type),
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	674 t38_field_type_to_str(field[data_field_no].field_type),
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	675 field[data_field_no].field_len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	676 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	677
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	678 data_field_no = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	679 len = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	680 /* Data field present */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	681 /* Data packet */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	682 /* Type of data */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	683 if (data_type <= T38_DATA_V17_14400)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	684 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	685 buf[len++] = (uint8_t) ((data_field_present << 7) \| 0x40 \| (data_type << 1));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	686 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	687 else if (s->t38_version != 0 && data_type <= T38_DATA_V33_14400)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	688 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	689 buf[len++] = (uint8_t) ((data_field_present << 7) \| 0x60 \| (((data_type - T38_DATA_V8) & 0xF) >> 2));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	690 buf[len++] = (uint8_t) (((data_type - T38_DATA_V8) << 6) & 0xFF);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	691 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	692 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	693 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	694 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	695 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	696 if (data_field_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	697 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	698 encoded_len = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	699 data_field_no = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	700 do
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	701 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	702 value = fields - encoded_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	703 if (value < 0x80)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	704 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	705 /* 1 octet case */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	706 buf[len++] = (uint8_t) value;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	707 enclen = value;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	708 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	709 else if (value < 0x4000)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	710 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	711 /* 2 octet case */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	712 buf[len++] = (uint8_t) (0x80 \| ((value >> 8) & 0xFF));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	713 buf[len++] = (uint8_t) (value & 0xFF);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	714 enclen = value;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	715 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	716 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	717 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	718 /* Fragmentation case */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	719 multiplier = (value/0x4000 < 4) ? value/0x4000 : 4;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	720 buf[len++] = (uint8_t) (0xC0 \| multiplier);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	721 enclen = 0x4000*multiplier;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	722 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	723
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	724 fragment_len = enclen;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	725 encoded_len += fragment_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	726 /* Encode the elements */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	727 for (i = 0; i < (int) encoded_len; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	728 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	729 q = &field[data_field_no];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	730 field_data_present = (uint8_t) (q->field_len > 0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	731 /* Encode field_type */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	732 if (s->t38_version == 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	733 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	734 /* Original version of T.38 with a typo */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	735 if (q->field_type > T38_FIELD_T4_NON_ECM_SIG_END)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	736 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	737 buf[len++] = (uint8_t) ((field_data_present << 7) \| (q->field_type << 4));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	738 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	739 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	740 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	741 if (q->field_type <= T38_FIELD_T4_NON_ECM_SIG_END)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	742 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	743 buf[len++] = (uint8_t) ((field_data_present << 7) \| (q->field_type << 3));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	744 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	745 else if (q->field_type <= T38_FIELD_V34RATE)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	746 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	747 buf[len++] = (uint8_t) ((field_data_present << 7) \| 0x40 \| ((q->field_type - T38_FIELD_CM_MESSAGE) >> 2));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	748 buf[len++] = (uint8_t) (((q->field_type - T38_FIELD_CM_MESSAGE) << 6) & 0xC0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	749 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	750 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	751 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	752 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	753 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	754 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	755 /* Encode field_data */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	756 if (field_data_present)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	757 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	758 if (q->field_len < 1 \|\| q->field_len > 65535)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	759 return -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	760 buf[len++] = (uint8_t) (((q->field_len - 1) >> 8) & 0xFF);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	761 buf[len++] = (uint8_t) ((q->field_len - 1) & 0xFF);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	762 memcpy(buf + len, q->field, q->field_len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	763 len += q->field_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	764 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	765 data_field_no++;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	766 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	767 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	768 while (fields != (int) encoded_len \|\| fragment_len >= 16384);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	769 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	770
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	771 if (span_log_test(&s->logging, SPAN_LOG_FLOW))
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	772 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	773 sprintf(tag, "Tx %5d: IFP", s->tx_seq_no);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	774 span_log_buf(&s->logging, SPAN_LOG_FLOW, tag, buf, len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	775 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	776 return len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	777 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	778 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	779
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	780 SPAN_DECLARE(int) t38_core_send_indicator(t38_core_state_t *s, int indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	781 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	782 uint8_t buf[100];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	783 int len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	784 int delay;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	785
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	786 delay = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	787 /* Only send an indicator if it represents a change of state. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	788 if (s->current_tx_indicator != indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	789 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	790 /* Zero is a valid count, to suppress the transmission of indicators when the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	791 transport means they are not needed - e.g. TPKT/TCP. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	792 if (s->category_control[T38_PACKET_CATEGORY_INDICATOR])
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	793 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	794 if ((len = t38_encode_indicator(s, buf, indicator)) < 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	795 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	796 span_log(&s->logging, SPAN_LOG_FLOW, "T.38 indicator len is %d\n", len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	797 return len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	798 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	799 span_log(&s->logging, SPAN_LOG_FLOW, "Tx %5d: indicator %s\n", s->tx_seq_no, t38_indicator_to_str(indicator));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	800 s->tx_packet_handler(s, s->tx_packet_user_data, buf, len, s->category_control[T38_PACKET_CATEGORY_INDICATOR]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	801 s->tx_seq_no = (s->tx_seq_no + 1) & 0xFFFF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	802 delay = modem_startup_time[indicator].training;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	803 if (s->allow_for_tep)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	804 delay += modem_startup_time[indicator].tep;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	805 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	806 s->current_tx_indicator = indicator;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	807 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	808 return delay;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	809 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	810 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	811
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	812 SPAN_DECLARE(int) t38_core_send_flags_delay(t38_core_state_t *s, int indicator)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	813 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	814 return modem_startup_time[indicator].flags;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	815 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	816 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	817
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	818 SPAN_DECLARE(int) t38_core_send_data(t38_core_state_t *s, int data_type, int field_type, const uint8_t field[], int field_len, int category)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	819 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	820 t38_data_field_t field0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	821 uint8_t buf[1000];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	822 int len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	823
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	824 field0.field_type = field_type;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	825 field0.field = field;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	826 field0.field_len = field_len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	827 if ((len = t38_encode_data(s, buf, data_type, &field0, 1)) < 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	828 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	829 span_log(&s->logging, SPAN_LOG_FLOW, "T.38 data len is %d\n", len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	830 return len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	831 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	832 s->tx_packet_handler(s, s->tx_packet_user_data, buf, len, s->category_control[category]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	833 s->tx_seq_no = (s->tx_seq_no + 1) & 0xFFFF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	834 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	835 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	836 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	837
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	838 SPAN_DECLARE(int) t38_core_send_data_multi_field(t38_core_state_t *s, int data_type, const t38_data_field_t field[], int fields, int category)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	839 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	840 uint8_t buf[1000];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	841 int len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	842
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	843 if ((len = t38_encode_data(s, buf, data_type, field, fields)) < 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	844 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	845 span_log(&s->logging, SPAN_LOG_FLOW, "T.38 data len is %d\n", len);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	846 return len;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	847 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	848 s->tx_packet_handler(s, s->tx_packet_user_data, buf, len, s->category_control[category]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	849 s->tx_seq_no = (s->tx_seq_no + 1) & 0xFFFF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	850 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	851 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	852 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	853
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	854 SPAN_DECLARE(void) t38_set_data_rate_management_method(t38_core_state_t *s, int method)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	855 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	856 s->data_rate_management_method = method;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	857 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	858 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	859
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	860 SPAN_DECLARE(void) t38_set_data_transport_protocol(t38_core_state_t *s, int data_transport_protocol)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	861 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	862 s->data_transport_protocol = data_transport_protocol;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	863 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	864 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	865
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	866 SPAN_DECLARE(void) t38_set_fill_bit_removal(t38_core_state_t *s, int fill_bit_removal)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	867 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	868 s->fill_bit_removal = fill_bit_removal;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	869 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	870 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	871
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	872 SPAN_DECLARE(void) t38_set_mmr_transcoding(t38_core_state_t *s, int mmr_transcoding)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	873 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	874 s->mmr_transcoding = mmr_transcoding;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	875 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	876 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	877
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	878 SPAN_DECLARE(void) t38_set_jbig_transcoding(t38_core_state_t *s, int jbig_transcoding)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	879 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	880 s->jbig_transcoding = jbig_transcoding;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	881 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	882 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	883
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	884 SPAN_DECLARE(void) t38_set_max_buffer_size(t38_core_state_t *s, int max_buffer_size)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	885 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	886 s->max_buffer_size = max_buffer_size;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	887 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	888 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	889
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	890 SPAN_DECLARE(void) t38_set_max_datagram_size(t38_core_state_t *s, int max_datagram_size)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	891 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	892 s->max_datagram_size = max_datagram_size;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	893 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	894 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	895
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	896 SPAN_DECLARE(void) t38_set_t38_version(t38_core_state_t *s, int t38_version)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	897 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	898 s->t38_version = t38_version;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	899 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	900 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	901
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	902 SPAN_DECLARE(void) t38_set_sequence_number_handling(t38_core_state_t *s, int check)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	903 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	904 s->check_sequence_numbers = check;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	905 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	906 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	907
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	908 SPAN_DECLARE(void) t38_set_tep_handling(t38_core_state_t *s, int allow_for_tep)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	909 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	910 s->allow_for_tep = allow_for_tep;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	911 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	912 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	913
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	914 SPAN_DECLARE(void) t38_set_redundancy_control(t38_core_state_t *s, int category, int setting)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	915 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	916 s->category_control[category] = setting;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	917 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	918 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	919
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	920 SPAN_DECLARE(void) t38_set_fastest_image_data_rate(t38_core_state_t *s, int max_rate)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	921 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	922 s->fastest_image_data_rate = max_rate;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	923 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	924 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	925
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	926 SPAN_DECLARE(int) t38_get_fastest_image_data_rate(t38_core_state_t *s)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	927 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	928 return s->fastest_image_data_rate;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	929 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	930 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	931
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	932 SPAN_DECLARE(logging_state_t ) t38_core_get_logging_state(t38_core_state_t s)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	933 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	934 return &s->logging;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	935 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	936 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	937
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	938 SPAN_DECLARE(t38_core_state_t ) t38_core_init(t38_core_state_t s,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	939 t38_rx_indicator_handler_t *rx_indicator_handler,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	940 t38_rx_data_handler_t *rx_data_handler,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	941 t38_rx_missing_handler_t *rx_missing_handler,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	942 void *rx_user_data,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	943 t38_tx_packet_handler_t *tx_packet_handler,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	944 void *tx_packet_user_data)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	945 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	946 if (s == NULL)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	947 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	948 if ((s = (t38_core_state_t ) malloc(sizeof(s))) == NULL)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	949 return NULL;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	950 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	951 memset(s, 0, sizeof(*s));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	952 span_log_init(&s->logging, SPAN_LOG_NONE, NULL);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	953 span_log_set_protocol(&s->logging, "T.38");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	954
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	955 /* Set some defaults for the parameters configurable from outside the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	956 T.38 domain - e.g. from SDP data. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	957 s->data_rate_management_method = T38_DATA_RATE_MANAGEMENT_TRANSFERRED_TCF;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	958 s->data_transport_protocol = T38_TRANSPORT_UDPTL;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	959 s->fill_bit_removal = FALSE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	960 s->mmr_transcoding = FALSE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	961 s->jbig_transcoding = FALSE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	962 s->max_buffer_size = 400;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	963 s->max_datagram_size = 100;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	964 s->t38_version = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	965 s->check_sequence_numbers = TRUE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	966
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	967 /* Set some defaults */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	968 s->category_control[T38_PACKET_CATEGORY_INDICATOR] = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	969 s->category_control[T38_PACKET_CATEGORY_CONTROL_DATA] = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	970 s->category_control[T38_PACKET_CATEGORY_CONTROL_DATA_END] = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	971 s->category_control[T38_PACKET_CATEGORY_IMAGE_DATA] = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	972 s->category_control[T38_PACKET_CATEGORY_IMAGE_DATA_END] = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	973
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	974 /* Set the initial current receive states to something invalid, so the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	975 first data received is seen as a change of state. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	976 s->current_rx_indicator = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	977 s->current_rx_data_type = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	978 s->current_rx_field_type = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	979
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	980 /* Set the initial current indicator state to something invalid, so the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	981 first attempt to send an indicator will work. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	982 s->current_tx_indicator = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	983
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	984 s->rx_indicator_handler = rx_indicator_handler;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	985 s->rx_data_handler = rx_data_handler;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	986 s->rx_missing_handler = rx_missing_handler;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	987 s->rx_user_data = rx_user_data;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	988 s->tx_packet_handler = tx_packet_handler;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	989 s->tx_packet_user_data = tx_packet_user_data;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	990
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	991 /* We have no initial expectation of the received packet sequence number.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	992 They most often start at 0 or 1 for a UDPTL transport, but random
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	993 starting numbers are possible. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	994 s->rx_expected_seq_no = -1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	995 return s;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	996 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	997 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	998
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	999 SPAN_DECLARE(int) t38_core_release(t38_core_state_t *s)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1000 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1001 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1002 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1003 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1004
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1005 SPAN_DECLARE(int) t38_core_free(t38_core_state_t *s)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1006 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1007 if (s)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1008 free(s);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1009 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1010 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1011 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1012 /- End of file ------------------------------------------------------------/

Mercurial > hg > audiostuff

annotate spandsp-0.0.6pre17/src/t38_core.c @ 6:22a74b01a099 default tip