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张华
freeswitch
Commits
7a2f2aee
提交
7a2f2aee
authored
8月 27, 2012
作者:
Steve Underwood
提交者:
Ken Rice
9月 11, 2012
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
More cleanups of fax modem stuff
上级
b535e4a4
隐藏空白字符变更
内嵌
并排
正在显示
4 个修改的文件
包含
62 行增加
和
138 行删除
+62
-138
fax.c
libs/spandsp/src/fax.c
+19
-70
fax_modems.c
libs/spandsp/src/fax_modems.c
+0
-5
t31.c
libs/spandsp/src/t31.c
+24
-39
t38_gateway.c
libs/spandsp/src/t38_gateway.c
+19
-24
没有找到文件。
libs/spandsp/src/fax.c
浏览文件 @
7a2f2aee
...
...
@@ -176,19 +176,6 @@ static int v17_v21_rx(void *user_data, const int16_t amp[], int len)
}
/*- End of function --------------------------------------------------------*/
static
int
v17_v21_rx_fillin
(
void
*
user_data
,
int
len
)
{
fax_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
fax_state_t
*
)
user_data
;
s
=
&
t
->
modems
;
v17_rx_fillin
(
&
s
->
fast_modems
.
v17_rx
,
len
);
fsk_rx_fillin
(
&
s
->
v21_rx
,
len
);
return
0
;
}
/*- End of function --------------------------------------------------------*/
static
int
v27ter_v21_rx
(
void
*
user_data
,
const
int16_t
amp
[],
int
len
)
{
fax_state_t
*
t
;
...
...
@@ -215,19 +202,6 @@ static int v27ter_v21_rx(void *user_data, const int16_t amp[], int len)
}
/*- End of function --------------------------------------------------------*/
static
int
v27ter_v21_rx_fillin
(
void
*
user_data
,
int
len
)
{
fax_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
fax_state_t
*
)
user_data
;
s
=
&
t
->
modems
;
v27ter_rx_fillin
(
&
s
->
fast_modems
.
v27ter_rx
,
len
);
fsk_rx_fillin
(
&
s
->
v21_rx
,
len
);
return
0
;
}
/*- End of function --------------------------------------------------------*/
static
int
v29_v21_rx
(
void
*
user_data
,
const
int16_t
amp
[],
int
len
)
{
fax_state_t
*
t
;
...
...
@@ -254,19 +228,6 @@ static int v29_v21_rx(void *user_data, const int16_t amp[], int len)
}
/*- End of function --------------------------------------------------------*/
static
int
v29_v21_rx_fillin
(
void
*
user_data
,
int
len
)
{
fax_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
fax_state_t
*
)
user_data
;
s
=
&
t
->
modems
;
v29_rx_fillin
(
&
s
->
fast_modems
.
v29_rx
,
len
);
fsk_rx_fillin
(
&
s
->
v21_rx
,
len
);
return
0
;
}
/*- End of function --------------------------------------------------------*/
SPAN_DECLARE_NONSTD
(
int
)
fax_rx
(
fax_state_t
*
s
,
int16_t
*
amp
,
int
len
)
{
int
i
;
...
...
@@ -383,8 +344,6 @@ SPAN_DECLARE_NONSTD(int) fax_tx(fax_state_t *s, int16_t *amp, int max_len)
static
void
fax_set_rx_type
(
void
*
user_data
,
int
type
,
int
bit_rate
,
int
short_train
,
int
use_hdlc
)
{
fax_state_t
*
s
;
put_bit_func_t
put_bit_func
;
void
*
put_bit_user_data
;
fax_modems_state_t
*
t
;
s
=
(
fax_state_t
*
)
user_data
;
...
...
@@ -396,36 +355,34 @@ static void fax_set_rx_type(void *user_data, int type, int bit_rate, int short_t
t
->
rx_bit_rate
=
bit_rate
;
if
(
use_hdlc
)
{
put_bit_func
=
(
put_bit_func_t
)
hdlc_rx_put_bit
;
put_bit_user_data
=
(
void
*
)
&
t
->
hdlc_rx
;
fax_modems_set_put_bit
(
t
,
(
put_bit_func_t
)
hdlc_rx_put_bit
,
&
t
->
hdlc_rx
);
hdlc_rx_init
(
&
t
->
hdlc_rx
,
FALSE
,
TRUE
,
HDLC_FRAMING_OK_THRESHOLD
,
t30_hdlc_accept
,
&
s
->
t30
);
}
else
{
put_bit_func
=
t30_non_ecm_put_bit
;
put_bit_user_data
=
(
void
*
)
&
s
->
t30
;
fax_modems_set_put_bit
(
t
,
(
put_bit_func_t
)
t30_non_ecm_put_bit
,
&
s
->
t30
);
}
switch
(
type
)
{
case
T30_MODEM_V21
:
fsk_rx_init
(
&
t
->
v21_rx
,
&
preset_fsk_specs
[
FSK_V21CH2
],
FSK_FRAME_MODE_SYNC
,
(
put_bit_func_t
)
hdlc_rx_put_bit
,
put_bit_user_data
);
fsk_rx_init
(
&
t
->
v21_rx
,
&
preset_fsk_specs
[
FSK_V21CH2
],
FSK_FRAME_MODE_SYNC
,
(
put_bit_func_t
)
hdlc_rx_put_bit
,
t
->
put_bit_user_data
);
fsk_rx_signal_cutoff
(
&
t
->
v21_rx
,
-
45
.
5
f
);
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
t
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
t
->
v21_rx
);
break
;
case
T30_MODEM_V27TER
:
v27ter_rx_restart
(
&
t
->
fast_modems
.
v27ter_rx
,
bit_rate
,
FALSE
);
v27ter_rx_set_put_bit
(
&
t
->
fast_modems
.
v27ter_rx
,
put_bit_func
,
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v27ter_v21_rx
,
s
,
&
v27ter_v21_rx_fillin
,
s
);
v27ter_rx_set_put_bit
(
&
t
->
fast_modems
.
v27ter_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v27ter_v21_rx
,
s
,
&
fax_modems_v27ter_v21_rx_fillin
,
t
);
break
;
case
T30_MODEM_V29
:
v29_rx_restart
(
&
t
->
fast_modems
.
v29_rx
,
bit_rate
,
FALSE
);
v29_rx_set_put_bit
(
&
t
->
fast_modems
.
v29_rx
,
put_bit_func
,
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v29_v21_rx
,
s
,
&
v29_v21_rx_fillin
,
s
);
v29_rx_set_put_bit
(
&
t
->
fast_modems
.
v29_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v29_v21_rx
,
s
,
&
fax_modems_v29_v21_rx_fillin
,
t
);
break
;
case
T30_MODEM_V17
:
v17_rx_restart
(
&
t
->
fast_modems
.
v17_rx
,
bit_rate
,
short_train
);
v17_rx_set_put_bit
(
&
t
->
fast_modems
.
v17_rx
,
put_bit_func
,
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v17_v21_rx
,
s
,
&
v17_v21_rx_fillin
,
s
);
v17_rx_set_put_bit
(
&
t
->
fast_modems
.
v17_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
fax_modems_set_rx_handler
(
t
,
&
v17_v21_rx
,
s
,
&
fax_modems_v17_v21_rx_fillin
,
t
);
break
;
case
T30_MODEM_DONE
:
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"FAX exchange complete
\n
"
);
...
...
@@ -439,8 +396,6 @@ static void fax_set_rx_type(void *user_data, int type, int bit_rate, int short_t
static
void
fax_set_tx_type
(
void
*
user_data
,
int
type
,
int
bit_rate
,
int
short_train
,
int
use_hdlc
)
{
fax_state_t
*
s
;
get_bit_func_t
get_bit_func
;
void
*
get_bit_user_data
;
fax_modems_state_t
*
t
;
int
tone
;
...
...
@@ -450,15 +405,9 @@ static void fax_set_tx_type(void *user_data, int type, int bit_rate, int short_t
if
(
t
->
current_tx_type
==
type
)
return
;
if
(
use_hdlc
)
{
get_bit_func
=
(
get_bit_func_t
)
hdlc_tx_get_bit
;
get_bit_user_data
=
(
void
*
)
&
t
->
hdlc_tx
;
}
fax_modems_set_get_bit
(
t
,
(
get_bit_func_t
)
hdlc_tx_get_bit
,
&
t
->
hdlc_tx
);
else
{
get_bit_func
=
t30_non_ecm_get_bit
;
get_bit_user_data
=
(
void
*
)
&
s
->
t30
;
}
fax_modems_set_get_bit
(
t
,
(
get_bit_func_t
)
t30_non_ecm_get_bit
,
&
s
->
t30
);
switch
(
type
)
{
case
T30_MODEM_PAUSE
:
...
...
@@ -479,9 +428,9 @@ static void fax_set_tx_type(void *user_data, int type, int bit_rate, int short_t
t
->
transmit
=
TRUE
;
break
;
case
T30_MODEM_V21
:
fsk_tx_init
(
&
t
->
v21_tx
,
&
preset_fsk_specs
[
FSK_V21CH2
],
get_bit_func
,
get_bit_user_data
);
fsk_tx_init
(
&
t
->
v21_tx
,
&
preset_fsk_specs
[
FSK_V21CH2
],
t
->
get_bit
,
t
->
get_bit_user_data
);
/* The spec says 1s +-15% of preamble. So, the minimum is 32 octets. */
hdlc_tx_flags
(
&
t
->
hdlc_tx
,
32
);
fax_modems_hdlc_tx_flags
(
t
,
32
);
/* Pause before switching from phase C, as per T.30 5.3.2.2. If we omit this, the receiver
might not see the carrier fall between the high speed and low speed sections. In practice,
a 75ms gap before any V.21 transmission is harmless, adds little to the overall length of
...
...
@@ -494,9 +443,9 @@ static void fax_set_tx_type(void *user_data, int type, int bit_rate, int short_t
case
T30_MODEM_V17
:
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
/* For any fast modem, set 200ms of preamble flags */
hdlc_tx_flags
(
&
t
->
hdlc_tx
,
bit_rate
/
(
8
*
5
));
fax_modems_hdlc_tx_flags
(
t
,
bit_rate
/
(
8
*
5
));
v17_tx_restart
(
&
t
->
fast_modems
.
v17_tx
,
bit_rate
,
t
->
use_tep
,
short_train
);
v17_tx_set_get_bit
(
&
t
->
fast_modems
.
v17_tx
,
get_bit_func
,
get_bit_user_data
);
v17_tx_set_get_bit
(
&
t
->
fast_modems
.
v17_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v17_tx
,
&
t
->
fast_modems
.
v17_tx
);
t
->
transmit
=
TRUE
;
...
...
@@ -504,9 +453,9 @@ static void fax_set_tx_type(void *user_data, int type, int bit_rate, int short_t
case
T30_MODEM_V27TER
:
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
/* For any fast modem, set 200ms of preamble flags */
hdlc_tx_flags
(
&
t
->
hdlc_tx
,
bit_rate
/
(
8
*
5
));
fax_modems_hdlc_tx_flags
(
t
,
bit_rate
/
(
8
*
5
));
v27ter_tx_restart
(
&
t
->
fast_modems
.
v27ter_tx
,
bit_rate
,
t
->
use_tep
);
v27ter_tx_set_get_bit
(
&
t
->
fast_modems
.
v27ter_tx
,
get_bit_func
,
get_bit_user_data
);
v27ter_tx_set_get_bit
(
&
t
->
fast_modems
.
v27ter_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v27ter_tx
,
&
t
->
fast_modems
.
v27ter_tx
);
t
->
transmit
=
TRUE
;
...
...
@@ -514,9 +463,9 @@ static void fax_set_tx_type(void *user_data, int type, int bit_rate, int short_t
case
T30_MODEM_V29
:
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
/* For any fast modem, set 200ms of preamble flags */
hdlc_tx_flags
(
&
t
->
hdlc_tx
,
bit_rate
/
(
8
*
5
));
fax_modems_hdlc_tx_flags
(
t
,
bit_rate
/
(
8
*
5
));
v29_tx_restart
(
&
t
->
fast_modems
.
v29_tx
,
bit_rate
,
t
->
use_tep
);
v29_tx_set_get_bit
(
&
t
->
fast_modems
.
v29_tx
,
get_bit_func
,
get_bit_user_data
);
v29_tx_set_get_bit
(
&
t
->
fast_modems
.
v29_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v29_tx
,
&
t
->
fast_modems
.
v29_tx
);
t
->
transmit
=
TRUE
;
...
...
libs/spandsp/src/fax_modems.c
浏览文件 @
7a2f2aee
...
...
@@ -257,11 +257,6 @@ SPAN_DECLARE_NONSTD(int) fax_modems_v29_v21_rx_fillin(void *user_data, int len)
static
void
v21_rx_status_handler
(
void
*
user_data
,
int
status
)
{
#if 0
fax_modems_state_t *s;
s = (fax_modems_state_t *) user_data;
#endif
}
/*- End of function --------------------------------------------------------*/
...
...
libs/spandsp/src/t31.c
浏览文件 @
7a2f2aee
...
...
@@ -1764,7 +1764,7 @@ static int restart_modem(t31_state_t *s, int new_modem)
case
FAX_MODEM_V17_RX
:
if
(
!
s
->
t38_mode
)
{
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v17_v21_rx
,
s
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v17_v21_rx_fillin
,
&
s
->
audio
.
modems
);
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v17_v21_rx
,
t
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v17_v21_rx_fillin
,
t
);
v17_rx_restart
(
&
t
->
fast_modems
.
v17_rx
,
s
->
bit_rate
,
s
->
short_train
);
/* Allow for +FCERROR/+FRH:3 */
t31_v21_rx
(
s
);
...
...
@@ -1801,7 +1801,7 @@ static int restart_modem(t31_state_t *s, int new_modem)
case
FAX_MODEM_V27TER_RX
:
if
(
!
s
->
t38_mode
)
{
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v27ter_v21_rx
,
s
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v27ter_v21_rx_fillin
,
&
s
->
audio
.
modems
);
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v27ter_v21_rx
,
t
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v27ter_v21_rx_fillin
,
t
);
v27ter_rx_restart
(
&
t
->
fast_modems
.
v27ter_rx
,
s
->
bit_rate
,
FALSE
);
/* Allow for +FCERROR/+FRH:3 */
t31_v21_rx
(
s
);
...
...
@@ -1838,7 +1838,7 @@ static int restart_modem(t31_state_t *s, int new_modem)
case
FAX_MODEM_V29_RX
:
if
(
!
s
->
t38_mode
)
{
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v29_v21_rx
,
s
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v29_v21_rx_fillin
,
&
s
->
audio
.
modems
);
fax_modems_set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
v29_v21_rx
,
t
,
(
span_rx_fillin_handler_t
)
&
fax_modems_v29_v21_rx_fillin
,
t
);
v29_rx_restart
(
&
t
->
fast_modems
.
v29_rx
,
s
->
bit_rate
,
FALSE
);
/* Allow for +FCERROR/+FRH:3 */
t31_v21_rx
(
s
);
...
...
@@ -2298,12 +2298,11 @@ static int cng_rx(void *user_data, const int16_t amp[], int len)
static
int
v17_v21_rx
(
void
*
user_data
,
const
int16_t
amp
[],
int
len
)
{
t31_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
t31_state_t
*
)
user_data
;
s
=
&
t
->
audio
.
modems
;
s
=
(
fax_modems_state_t
*
)
user_data
;
v17_rx
(
&
s
->
fast_modems
.
v17_rx
,
amp
,
len
);
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
s
->
rx_trained
)
{
/* The fast modem has trained, so we no longer need to run the slow
...
...
@@ -2311,16 +2310,12 @@ static int v17_v21_rx(void *user_data, const int16_t amp[], int len)
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.17 + V.21 to V.17 (%.2fdBm0)
\n
"
,
v17_rx_signal_power
(
&
s
->
fast_modems
.
v17_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
v17_rx
,
&
s
->
fast_modems
.
v17_rx
,
(
span_rx_fillin_handler_t
)
&
v17_rx_fillin
,
&
s
->
fast_modems
.
v17_rx
);
}
else
else
if
(
s
->
rx_frame_received
)
{
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
t
->
rx_frame_received
)
{
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.17 + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.17 + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
return
len
;
}
...
...
@@ -2328,12 +2323,11 @@ static int v17_v21_rx(void *user_data, const int16_t amp[], int len)
static
int
v27ter_v21_rx
(
void
*
user_data
,
const
int16_t
amp
[],
int
len
)
{
t31_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
t31_state_t
*
)
user_data
;
s
=
&
t
->
audio
.
modems
;
s
=
(
fax_modems_state_t
*
)
user_data
;
v27ter_rx
(
&
s
->
fast_modems
.
v27ter_rx
,
amp
,
len
);
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
s
->
rx_trained
)
{
/* The fast modem has trained, so we no longer need to run the slow
...
...
@@ -2341,16 +2335,12 @@ static int v27ter_v21_rx(void *user_data, const int16_t amp[], int len)
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.27ter + V.21 to V.27ter (%.2fdBm0)
\n
"
,
v27ter_rx_signal_power
(
&
s
->
fast_modems
.
v27ter_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
v27ter_rx
,
&
s
->
fast_modems
.
v27ter_rx
,
(
span_rx_fillin_handler_t
)
&
v27ter_rx_fillin
,
&
s
->
fast_modems
.
v27ter_rx
);
}
else
else
if
(
s
->
rx_frame_received
)
{
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
t
->
rx_frame_received
)
{
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.27ter + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.27ter + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
return
len
;
}
...
...
@@ -2358,12 +2348,11 @@ static int v27ter_v21_rx(void *user_data, const int16_t amp[], int len)
static
int
v29_v21_rx
(
void
*
user_data
,
const
int16_t
amp
[],
int
len
)
{
t31_state_t
*
t
;
fax_modems_state_t
*
s
;
t
=
(
t31_state_t
*
)
user_data
;
s
=
&
t
->
audio
.
modems
;
s
=
(
fax_modems_state_t
*
)
user_data
;
v29_rx
(
&
s
->
fast_modems
.
v29_rx
,
amp
,
len
);
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
s
->
rx_trained
)
{
/* The fast modem has trained, so we no longer need to run the slow
...
...
@@ -2371,16 +2360,12 @@ static int v29_v21_rx(void *user_data, const int16_t amp[], int len)
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.29 + V.21 to V.29 (%.2fdBm0)
\n
"
,
v29_rx_signal_power
(
&
s
->
fast_modems
.
v29_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
v29_rx
,
&
s
->
fast_modems
.
v29_rx
,
(
span_rx_fillin_handler_t
)
&
v29_rx_fillin
,
&
s
->
fast_modems
.
v29_rx
);
}
else
else
if
(
s
->
rx_frame_received
)
{
fsk_rx
(
&
s
->
v21_rx
,
amp
,
len
);
if
(
t
->
rx_frame_received
)
{
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.29 + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
/* We have received something, and the fast modem has not trained. We must
be receiving valid V.21 */
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Switching from V.29 + V.21 to V.21 (%.2fdBm0)
\n
"
,
fsk_rx_signal_power
(
&
s
->
v21_rx
));
fax_modems_set_rx_handler
(
s
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
s
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
s
->
v21_rx
);
}
return
len
;
}
...
...
libs/spandsp/src/t38_gateway.c
浏览文件 @
7a2f2aee
...
...
@@ -347,11 +347,10 @@ static int set_next_tx_type(t38_gateway_state_t *s)
{
int
indicator
;
fax_modems_state_t
*
t
;
get_bit_func_t
get_bit_func
;
void
*
get_bit_user_data
;
t38_gateway_hdlc_state_t
*
u
;
int
short_train
;
int
bit_rate
;
int
short_train
;
//int use_hdlc;
t
=
&
s
->
audio
.
modems
;
t38_non_ecm_buffer_report_output_status
(
&
s
->
core
.
non_ecm_to_modem
,
&
s
->
logging
);
...
...
@@ -393,14 +392,14 @@ static int set_next_tx_type(t38_gateway_state_t *s)
{
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"HDLC mode
\n
"
);
hdlc_tx_init
(
&
t
->
hdlc_tx
,
FALSE
,
2
,
TRUE
,
hdlc_underflow_handler
,
s
);
get_bit_func
=
(
get_bit_func_t
)
hdlc_tx_get_bit
;
get_bit_user_data
=
(
void
*
)
&
t
->
hdlc_tx
;
fax_modems_set_get_bit
(
t
,
(
get_bit_func_t
)
hdlc_tx_get_bit
,
&
t
->
hdlc_tx
)
;
//use_hdlc = TRUE
;
}
else
{
span_log
(
&
s
->
logging
,
SPAN_LOG_FLOW
,
"Non-ECM mode
\n
"
);
get_bit_func
=
t38_non_ecm_buffer_get_bit
;
get_bit_user_data
=
(
void
*
)
&
s
->
core
.
non_ecm_to_modem
;
fax_modems_set_get_bit
(
t
,
(
get_bit_func_t
)
t38_non_ecm_buffer_get_bit
,
&
s
->
core
.
non_ecm_to_modem
)
;
//use_hdlc = FALSE
;
}
/*endif*/
switch
(
indicator
)
...
...
@@ -445,7 +444,7 @@ static int set_next_tx_type(t38_gateway_state_t *s)
t
->
tx_bit_rate
=
(
indicator
==
T38_IND_V27TER_4800_TRAINING
)
?
4800
:
2400
;
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
v27ter_tx_restart
(
&
t
->
fast_modems
.
v27ter_tx
,
t
->
tx_bit_rate
,
t
->
use_tep
);
v27ter_tx_set_get_bit
(
&
t
->
fast_modems
.
v27ter_tx
,
get_bit_func
,
get_bit_user_data
);
v27ter_tx_set_get_bit
(
&
t
->
fast_modems
.
v27ter_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v27ter_tx
,
&
t
->
fast_modems
.
v27ter_tx
);
fax_modems_set_rx_active
(
t
,
TRUE
);
...
...
@@ -456,7 +455,7 @@ static int set_next_tx_type(t38_gateway_state_t *s)
t
->
tx_bit_rate
=
(
indicator
==
T38_IND_V29_9600_TRAINING
)
?
9600
:
7200
;
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
v29_tx_restart
(
&
t
->
fast_modems
.
v29_tx
,
t
->
tx_bit_rate
,
t
->
use_tep
);
v29_tx_set_get_bit
(
&
t
->
fast_modems
.
v29_tx
,
get_bit_func
,
get_bit_user_data
);
v29_tx_set_get_bit
(
&
t
->
fast_modems
.
v29_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v29_tx
,
&
t
->
fast_modems
.
v29_tx
);
fax_modems_set_rx_active
(
t
,
TRUE
);
...
...
@@ -505,7 +504,7 @@ static int set_next_tx_type(t38_gateway_state_t *s)
t
->
tx_bit_rate
=
bit_rate
;
silence_gen_alter
(
&
t
->
silence_gen
,
ms_to_samples
(
75
));
v17_tx_restart
(
&
t
->
fast_modems
.
v17_tx
,
t
->
tx_bit_rate
,
t
->
use_tep
,
short_train
);
v17_tx_set_get_bit
(
&
t
->
fast_modems
.
v17_tx
,
get_bit_func
,
get_bit_user_data
);
v17_tx_set_get_bit
(
&
t
->
fast_modems
.
v17_tx
,
t
->
get_bit
,
t
->
get_bit_user_data
);
fax_modems_set_tx_handler
(
t
,
(
span_tx_handler_t
)
&
silence_gen
,
&
t
->
silence_gen
);
fax_modems_set_next_tx_handler
(
t
,
(
span_tx_handler_t
)
&
v17_tx
,
&
t
->
fast_modems
.
v17_tx
);
fax_modems_set_rx_active
(
t
,
TRUE
);
...
...
@@ -2020,8 +2019,6 @@ static void t38_hdlc_rx_put_bit(hdlc_rx_state_t *t, int new_bit)
static
int
restart_rx_modem
(
t38_gateway_state_t
*
s
)
{
fax_modems_state_t
*
t
;
put_bit_func_t
put_bit_func
;
void
*
put_bit_user_data
;
if
(
s
->
core
.
to_t38
.
in_bits
||
s
->
core
.
to_t38
.
out_octets
)
{
...
...
@@ -2049,21 +2046,19 @@ static int restart_rx_modem(t38_gateway_state_t *s)
s
->
t38x
.
current_tx_data_type
=
T38_DATA_V21
;
fsk_rx_init
(
&
t
->
v21_rx
,
&
preset_fsk_specs
[
FSK_V21CH2
],
FSK_FRAME_MODE_SYNC
,
(
put_bit_func_t
)
t38_hdlc_rx_put_bit
,
&
t
->
hdlc_rx
);
#if 0
fsk_rx_signal_cutoff(&t->v21_rx, -
45.5
f);
fsk_rx_signal_cutoff(&t->v21_rx, -
39.09
f);
#endif
if
(
s
->
core
.
image_data_mode
&&
s
->
core
.
ecm_mode
)
{
put_bit_func
=
(
put_bit_func_t
)
t38_hdlc_rx_put_bit
;
put_bit_user_data
=
(
void
*
)
&
t
->
hdlc_rx
;
fax_modems_set_put_bit
(
t
,
(
put_bit_func_t
)
t38_hdlc_rx_put_bit
,
&
t
->
hdlc_rx
);
}
else
{
if
(
s
->
core
.
image_data_mode
&&
s
->
core
.
to_t38
.
fill_bit_removal
)
put_bit_func
=
non_ecm_remove_fill_and_put_bit
;
fax_modems_set_put_bit
(
t
,
(
put_bit_func_t
)
non_ecm_remove_fill_and_put_bit
,
s
)
;
else
put_bit_func
=
non_ecm_put_bit
;
fax_modems_set_put_bit
(
t
,
(
put_bit_func_t
)
non_ecm_put_bit
,
s
)
;
/*endif*/
put_bit_user_data
=
(
void
*
)
s
;
}
/*endif*/
to_t38_buffer_init
(
&
s
->
core
.
to_t38
);
...
...
@@ -2072,21 +2067,21 @@ static int restart_rx_modem(t38_gateway_state_t *s)
{
case
FAX_MODEM_V27TER_RX
:
v27ter_rx_restart
(
&
t
->
fast_modems
.
v27ter_rx
,
s
->
core
.
fast_bit_rate
,
FALSE
);
v27ter_rx_set_put_bit
(
&
t
->
fast_modems
.
v27ter_rx
,
put_bit_func
,
put_bit_user_data
);
v27ter_rx_set_put_bit
(
&
t
->
fast_modems
.
v27ter_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
set_rx_handler
(
t
,
&
v27ter_v21_rx
,
t
,
&
fax_modems_v27ter_v21_rx_fillin
,
t
);
s
->
core
.
fast_rx_active
=
FAX_MODEM_V27TER_RX
;
s
->
core
.
fast_rx_active
=
s
->
core
.
fast_rx_modem
;
break
;
case
FAX_MODEM_V29_RX
:
v29_rx_restart
(
&
t
->
fast_modems
.
v29_rx
,
s
->
core
.
fast_bit_rate
,
FALSE
);
v29_rx_set_put_bit
(
&
t
->
fast_modems
.
v29_rx
,
put_bit_func
,
put_bit_user_data
);
v29_rx_set_put_bit
(
&
t
->
fast_modems
.
v29_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
set_rx_handler
(
t
,
&
v29_v21_rx
,
t
,
&
fax_modems_v29_v21_rx_fillin
,
t
);
s
->
core
.
fast_rx_active
=
FAX_MODEM_V29_RX
;
s
->
core
.
fast_rx_active
=
s
->
core
.
fast_rx_modem
;
break
;
case
FAX_MODEM_V17_RX
:
v17_rx_restart
(
&
t
->
fast_modems
.
v17_rx
,
s
->
core
.
fast_bit_rate
,
s
->
core
.
short_train
);
v17_rx_set_put_bit
(
&
t
->
fast_modems
.
v17_rx
,
put_bit_func
,
put_bit_user_data
);
v17_rx_set_put_bit
(
&
t
->
fast_modems
.
v17_rx
,
t
->
put_bit
,
t
->
put_bit_user_data
);
set_rx_handler
(
t
,
&
v17_v21_rx
,
t
,
&
fax_modems_v17_v21_rx_fillin
,
t
);
s
->
core
.
fast_rx_active
=
FAX_MODEM_V17_RX
;
s
->
core
.
fast_rx_active
=
s
->
core
.
fast_rx_modem
;
break
;
default:
set_rx_handler
(
t
,
(
span_rx_handler_t
)
&
fsk_rx
,
&
t
->
v21_rx
,
(
span_rx_fillin_handler_t
)
&
fsk_rx_fillin
,
&
t
->
v21_rx
);
...
...
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