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张华
freeswitch
Commits
7ebb663c
提交
7ebb663c
authored
1月 02, 2014
作者:
Jeff Lenk
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
FS-5401 --resolve whitespace only
上级
e75497c9
隐藏空白字符变更
内嵌
并排
正在显示
1 个修改的文件
包含
359 行增加
和
359 行删除
+359
-359
mod_avmd.c
src/mod/applications/mod_avmd/mod_avmd.c
+359
-359
没有找到文件。
src/mod/applications/mod_avmd/mod_avmd.c
浏览文件 @
7ebb663c
...
...
@@ -98,28 +98,28 @@ SWITCH_STANDARD_APP(avmd_start_function);
/*! Status of the beep detection */
typedef
enum
{
BEEP_DETECTED
,
BEEP_NOTDETECTED
BEEP_DETECTED
,
BEEP_NOTDETECTED
}
avmd_beep_state_t
;
/*! Data related to the current status of the beep */
typedef
struct
{
avmd_beep_state_t
beep_state
;
size_t
last_beep
;
avmd_beep_state_t
beep_state
;
size_t
last_beep
;
}
avmd_state_t
;
/*! Type that holds session information pertinent to the avmd module. */
typedef
struct
{
/*! Internal FreeSWITCH session. */
switch_core_session_t
*
session
;
uint32_t
rate
;
circ_buffer_t
b
;
sma_buffer_t
sma_b
;
sma_buffer_t
sqa_b
;
size_t
pos
;
double
f
;
/* freq_table_t ft; */
avmd_state_t
state
;
/*! Internal FreeSWITCH session. */
switch_core_session_t
*
session
;
uint32_t
rate
;
circ_buffer_t
b
;
sma_buffer_t
sma_b
;
sma_buffer_t
sqa_b
;
size_t
pos
;
double
f
;
/* freq_table_t ft; */
avmd_state_t
state
;
}
avmd_session_t
;
static
void
avmd_process
(
avmd_session_t
*
session
,
switch_frame_t
*
frame
);
...
...
@@ -135,26 +135,26 @@ static void init_avmd_session_data(avmd_session_t *avmd_session, switch_core_se
static
void
init_avmd_session_data
(
avmd_session_t
*
avmd_session
,
switch_core_session_t
*
fs_session
)
{
/*! This is a worst case sample rate estimate */
avmd_session
->
rate
=
48000
;
INIT_CIRC_BUFFER
(
&
avmd_session
->
b
,
BEEP_LEN
(
avmd_session
->
rate
),
FRAME_LEN
(
avmd_session
->
rate
),
fs_session
);
avmd_session
->
session
=
fs_session
;
avmd_session
->
pos
=
0
;
avmd_session
->
f
=
0
.
0
;
avmd_session
->
state
.
last_beep
=
0
;
avmd_session
->
state
.
beep_state
=
BEEP_NOTDETECTED
;
INIT_SMA_BUFFER
(
&
avmd_session
->
sma_b
,
BEEP_LEN
(
avmd_session
->
rate
)
/
SINE_LEN
(
avmd_session
->
rate
),
fs_session
);
INIT_SMA_BUFFER
(
&
avmd_session
->
sqa_b
,
BEEP_LEN
(
avmd_session
->
rate
)
/
SINE_LEN
(
avmd_session
->
rate
),
fs_session
);
avmd_session
->
rate
=
48000
;
INIT_CIRC_BUFFER
(
&
avmd_session
->
b
,
BEEP_LEN
(
avmd_session
->
rate
),
FRAME_LEN
(
avmd_session
->
rate
),
fs_session
);
avmd_session
->
session
=
fs_session
;
avmd_session
->
pos
=
0
;
avmd_session
->
f
=
0
.
0
;
avmd_session
->
state
.
last_beep
=
0
;
avmd_session
->
state
.
beep_state
=
BEEP_NOTDETECTED
;
INIT_SMA_BUFFER
(
&
avmd_session
->
sma_b
,
BEEP_LEN
(
avmd_session
->
rate
)
/
SINE_LEN
(
avmd_session
->
rate
),
fs_session
);
INIT_SMA_BUFFER
(
&
avmd_session
->
sqa_b
,
BEEP_LEN
(
avmd_session
->
rate
)
/
SINE_LEN
(
avmd_session
->
rate
),
fs_session
);
}
...
...
@@ -168,42 +168,42 @@ static void init_avmd_session_data(avmd_session_t *avmd_session, switch_core_se
*/
static
switch_bool_t
avmd_callback
(
switch_media_bug_t
*
bug
,
void
*
user_data
,
switch_abc_type_t
type
)
{
avmd_session_t
*
avmd_session
;
switch_codec_t
*
read_codec
;
switch_frame_t
*
frame
;
avmd_session
=
(
avmd_session_t
*
)
user_data
;
if
(
avmd_session
==
NULL
)
{
return
SWITCH_FALSE
;
}
switch
(
type
)
{
case
SWITCH_ABC_TYPE_INIT
:
read_codec
=
switch_core_session_get_read_codec
(
avmd_session
->
session
);
avmd_session
->
rate
=
read_codec
->
implementation
->
samples_per_second
;
/* avmd_session->vmd_codec.channels = read_codec->implementation->number_of_channels; */
break
;
case
SWITCH_ABC_TYPE_READ_PING
:
case
SWITCH_ABC_TYPE_CLOSE
:
case
SWITCH_ABC_TYPE_READ
:
case
SWITCH_ABC_TYPE_WRITE
:
case
SWITCH_ABC_TYPE_TAP_NATIVE_READ
:
case
SWITCH_ABC_TYPE_TAP_NATIVE_WRITE
:
break
;
case
SWITCH_ABC_TYPE_READ_REPLACE
:
frame
=
switch_core_media_bug_get_read_replace_frame
(
bug
);
avmd_process
(
avmd_session
,
frame
);
return
SWITCH_TRUE
;
case
SWITCH_ABC_TYPE_WRITE_REPLACE
:
break
;
}
return
SWITCH_TRUE
;
avmd_session_t
*
avmd_session
;
switch_codec_t
*
read_codec
;
switch_frame_t
*
frame
;
avmd_session
=
(
avmd_session_t
*
)
user_data
;
if
(
avmd_session
==
NULL
)
{
return
SWITCH_FALSE
;
}
switch
(
type
)
{
case
SWITCH_ABC_TYPE_INIT
:
read_codec
=
switch_core_session_get_read_codec
(
avmd_session
->
session
);
avmd_session
->
rate
=
read_codec
->
implementation
->
samples_per_second
;
/* avmd_session->vmd_codec.channels = read_codec->implementation->number_of_channels; */
break
;
case
SWITCH_ABC_TYPE_READ_PING
:
case
SWITCH_ABC_TYPE_CLOSE
:
case
SWITCH_ABC_TYPE_READ
:
case
SWITCH_ABC_TYPE_WRITE
:
case
SWITCH_ABC_TYPE_TAP_NATIVE_READ
:
case
SWITCH_ABC_TYPE_TAP_NATIVE_WRITE
:
break
;
case
SWITCH_ABC_TYPE_READ_REPLACE
:
frame
=
switch_core_media_bug_get_read_replace_frame
(
bug
);
avmd_process
(
avmd_session
,
frame
);
return
SWITCH_TRUE
;
case
SWITCH_ABC_TYPE_WRITE_REPLACE
:
break
;
}
return
SWITCH_TRUE
;
}
/*! \brief FreeSWITCH module loading function
...
...
@@ -214,40 +214,40 @@ static switch_bool_t avmd_callback(switch_media_bug_t * bug, void *user_data, sw
SWITCH_MODULE_LOAD_FUNCTION
(
mod_avmd_load
)
{
switch_application_interface_t
*
app_interface
;
switch_api_interface_t
*
api_interface
;
/* connect my internal structure to the blank pointer passed to me */
*
module_interface
=
switch_loadable_module_create_module_interface
(
pool
,
modname
);
switch_application_interface_t
*
app_interface
;
switch_api_interface_t
*
api_interface
;
/* connect my internal structure to the blank pointer passed to me */
*
module_interface
=
switch_loadable_module_create_module_interface
(
pool
,
modname
);
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection enabled
\n
"
);
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection enabled
\n
"
);
#ifdef FASTMATH
init_fast_acosf
();
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection: fast math enabled
\n
"
);
init_fast_acosf
();
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection: fast math enabled
\n
"
);
#endif
SWITCH_ADD_APP
(
app_interface
,
"avmd"
,
"Beep detection"
,
"Advanced detection of voicemail beeps"
,
avmd_start_function
,
"[start] [stop]"
,
SAF_NONE
);
SWITCH_ADD_APP
(
app_interface
,
"avmd"
,
"Beep detection"
,
"Advanced detection of voicemail beeps"
,
avmd_start_function
,
"[start] [stop]"
,
SAF_NONE
);
SWITCH_ADD_API
(
api_interface
,
"avmd"
,
"Voicemail beep detection"
,
avmd_api_main
,
AVMD_SYNTAX
);
SWITCH_ADD_API
(
api_interface
,
"avmd"
,
"Voicemail beep detection"
,
avmd_api_main
,
AVMD_SYNTAX
);
/* indicate that the module should continue to be loaded */
return
SWITCH_STATUS_SUCCESS
;
/* indicate that the module should continue to be loaded */
return
SWITCH_STATUS_SUCCESS
;
}
/*! \brief FreeSWITCH application handler function.
...
...
@@ -258,63 +258,63 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_avmd_load)
*/
SWITCH_STANDARD_APP
(
avmd_start_function
)
{
switch_media_bug_t
*
bug
;
switch_status_t
status
;
switch_channel_t
*
channel
;
avmd_session_t
*
avmd_session
;
if
(
session
==
NULL
)
return
;
channel
=
switch_core_session_get_channel
(
session
);
/* Is this channel already using avmd ? */
bug
=
(
switch_media_bug_t
*
)
switch_channel_get_private
(
channel
,
"_avmd_"
);
/* If it is using avmd */
if
(
bug
!=
NULL
)
{
/* If we have a stop remove audio bug */
if
(
strcasecmp
(
data
,
"stop"
)
==
0
)
{
switch_channel_set_private
(
channel
,
"_avmd_"
,
NULL
);
switch_core_media_bug_remove
(
session
,
&
bug
);
return
;
}
/* We have already started */
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_WARNING
,
"Cannot run 2 at once on the same channel!
\n
"
);
return
;
}
avmd_session
=
(
avmd_session_t
*
)
switch_core_session_alloc
(
session
,
sizeof
(
avmd_session_t
));
init_avmd_session_data
(
avmd_session
,
session
);
status
=
switch_core_media_bug_add
(
session
,
"avmd"
,
NULL
,
avmd_callback
,
avmd_session
,
0
,
SMBF_READ_REPLACE
,
&
bug
);
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_ERROR
,
"Failure hooking to stream
\n
"
);
return
;
}
switch_channel_set_private
(
channel
,
"_avmd_"
,
bug
);
switch_media_bug_t
*
bug
;
switch_status_t
status
;
switch_channel_t
*
channel
;
avmd_session_t
*
avmd_session
;
if
(
session
==
NULL
)
return
;
channel
=
switch_core_session_get_channel
(
session
);
/* Is this channel already using avmd ? */
bug
=
(
switch_media_bug_t
*
)
switch_channel_get_private
(
channel
,
"_avmd_"
);
/* If it is using avmd */
if
(
bug
!=
NULL
)
{
/* If we have a stop remove audio bug */
if
(
strcasecmp
(
data
,
"stop"
)
==
0
)
{
switch_channel_set_private
(
channel
,
"_avmd_"
,
NULL
);
switch_core_media_bug_remove
(
session
,
&
bug
);
return
;
}
/* We have already started */
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_WARNING
,
"Cannot run 2 at once on the same channel!
\n
"
);
return
;
}
avmd_session
=
(
avmd_session_t
*
)
switch_core_session_alloc
(
session
,
sizeof
(
avmd_session_t
));
init_avmd_session_data
(
avmd_session
,
session
);
status
=
switch_core_media_bug_add
(
session
,
"avmd"
,
NULL
,
avmd_callback
,
avmd_session
,
0
,
SMBF_READ_REPLACE
,
&
bug
);
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_ERROR
,
"Failure hooking to stream
\n
"
);
return
;
}
switch_channel_set_private
(
channel
,
"_avmd_"
,
bug
);
}
/*! \brief Called when the module shuts down
...
...
@@ -326,16 +326,16 @@ SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_avmd_shutdown)
{
#ifdef FASTMATH
destroy_fast_acosf
();
destroy_fast_acosf
();
#endif
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection disabled
\n
"
);
switch_log_printf
(
SWITCH_CHANNEL_LOG
,
SWITCH_LOG_NOTICE
,
"Advanced Voicemail detection disabled
\n
"
);
return
SWITCH_STATUS_SUCCESS
;
return
SWITCH_STATUS_SUCCESS
;
}
/*! \brief FreeSWITCH API handler function.
...
...
@@ -347,127 +347,127 @@ SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_avmd_shutdown)
*/
SWITCH_STANDARD_API
(
avmd_api_main
)
{
switch_core_session_t
*
fs_session
=
NULL
;
switch_media_bug_t
*
bug
;
avmd_session_t
*
avmd_session
;
switch_channel_t
*
channel
;
switch_status_t
status
;
int
argc
;
char
*
argv
[
AVMD_PARAMS
];
char
*
ccmd
=
NULL
;
char
*
uuid
;
char
*
command
;
/* No command? Display usage */
if
(
zstr
(
cmd
))
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
return
SWITCH_STATUS_SUCCESS
;
}
/* Duplicated contents of original string */
ccmd
=
strdup
(
cmd
);
/* Separate the arguments */
argc
=
switch_separate_string
(
ccmd
,
' '
,
argv
,
AVMD_PARAMS
);
/* If we don't have the expected number of parameters
* display usage */
if
(
argc
!=
AVMD_PARAMS
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
uuid
=
argv
[
0
];
command
=
argv
[
1
];
/* using uuid locate a reference to the FreeSWITCH session */
fs_session
=
switch_core_session_locate
(
uuid
);
/* If the session was not found exit */
if
(
fs_session
==
NULL
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
/* Get current channel of the session to tag the session
* This indicates that our module is present */
channel
=
switch_core_session_get_channel
(
fs_session
);
/* Is this channel already set? */
bug
=
(
switch_media_bug_t
*
)
switch_channel_get_private
(
channel
,
"_avmd_"
);
/* If yes */
if
(
bug
!=
NULL
)
{
/* If we have a stop remove audio bug */
if
(
strcasecmp
(
command
,
"stop"
)
==
0
)
{
switch_channel_set_private
(
channel
,
"_avmd_"
,
NULL
);
switch_core_media_bug_remove
(
fs_session
,
&
bug
);
switch_safe_free
(
ccmd
);
stream
->
write_function
(
stream
,
"+OK
\n
"
);
goto
end
;
}
/* We have already started */
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_WARNING
,
"Cannot run 2 at once on the same channel!
\n
"
);
goto
end
;
}
/* If we don't see the expected start exit */
if
(
strcasecmp
(
command
,
"start"
)
!=
0
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
/* Allocate memory attached to this FreeSWITCH session for
* use in the callback routine and to store state information */
avmd_session
=
(
avmd_session_t
*
)
switch_core_session_alloc
(
fs_session
,
sizeof
(
avmd_session_t
));
init_avmd_session_data
(
avmd_session
,
fs_session
);
/* Add a media bug that allows me to intercept the
* reading leg of the audio stream */
status
=
switch_core_media_bug_add
(
fs_session
,
"avmd"
,
NULL
,
avmd_callback
,
avmd_session
,
0
,
SMBF_READ_REPLACE
,
&
bug
);
/* If adding a media bug fails exit */
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_ERROR
,
"Failure hooking to stream
\n
"
);
goto
end
;
}
/* Set the vmd tag to detect an existing vmd media bug */
switch_channel_set_private
(
channel
,
"_avmd_"
,
bug
);
/* Everything went according to plan! Notify the user */
stream
->
write_function
(
stream
,
"+OK
\n
"
);
switch_core_session_t
*
fs_session
=
NULL
;
switch_media_bug_t
*
bug
;
avmd_session_t
*
avmd_session
;
switch_channel_t
*
channel
;
switch_status_t
status
;
int
argc
;
char
*
argv
[
AVMD_PARAMS
];
char
*
ccmd
=
NULL
;
char
*
uuid
;
char
*
command
;
/* No command? Display usage */
if
(
zstr
(
cmd
))
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
return
SWITCH_STATUS_SUCCESS
;
}
/* Duplicated contents of original string */
ccmd
=
strdup
(
cmd
);
/* Separate the arguments */
argc
=
switch_separate_string
(
ccmd
,
' '
,
argv
,
AVMD_PARAMS
);
/* If we don't have the expected number of parameters
* display usage */
if
(
argc
!=
AVMD_PARAMS
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
uuid
=
argv
[
0
];
command
=
argv
[
1
];
/* using uuid locate a reference to the FreeSWITCH session */
fs_session
=
switch_core_session_locate
(
uuid
);
/* If the session was not found exit */
if
(
fs_session
==
NULL
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
/* Get current channel of the session to tag the session
* This indicates that our module is present */
channel
=
switch_core_session_get_channel
(
fs_session
);
/* Is this channel already set? */
bug
=
(
switch_media_bug_t
*
)
switch_channel_get_private
(
channel
,
"_avmd_"
);
/* If yes */
if
(
bug
!=
NULL
)
{
/* If we have a stop remove audio bug */
if
(
strcasecmp
(
command
,
"stop"
)
==
0
)
{
switch_channel_set_private
(
channel
,
"_avmd_"
,
NULL
);
switch_core_media_bug_remove
(
fs_session
,
&
bug
);
switch_safe_free
(
ccmd
);
stream
->
write_function
(
stream
,
"+OK
\n
"
);
goto
end
;
}
/* We have already started */
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_WARNING
,
"Cannot run 2 at once on the same channel!
\n
"
);
goto
end
;
}
/* If we don't see the expected start exit */
if
(
strcasecmp
(
command
,
"start"
)
!=
0
)
{
stream
->
write_function
(
stream
,
"-USAGE: %s
\n
"
,
AVMD_SYNTAX
);
goto
end
;
}
/* Allocate memory attached to this FreeSWITCH session for
* use in the callback routine and to store state information */
avmd_session
=
(
avmd_session_t
*
)
switch_core_session_alloc
(
fs_session
,
sizeof
(
avmd_session_t
));
init_avmd_session_data
(
avmd_session
,
fs_session
);
/* Add a media bug that allows me to intercept the
* reading leg of the audio stream */
status
=
switch_core_media_bug_add
(
fs_session
,
"avmd"
,
NULL
,
avmd_callback
,
avmd_session
,
0
,
SMBF_READ_REPLACE
,
&
bug
);
/* If adding a media bug fails exit */
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
),
SWITCH_LOG_ERROR
,
"Failure hooking to stream
\n
"
);
goto
end
;
}
/* Set the vmd tag to detect an existing vmd media bug */
switch_channel_set_private
(
channel
,
"_avmd_"
,
bug
);
/* Everything went according to plan! Notify the user */
stream
->
write_function
(
stream
,
"+OK
\n
"
);
end
:
if
(
fs_session
)
{
switch_core_session_rwunlock
(
fs_session
);
}
if
(
fs_session
)
{
switch_core_session_rwunlock
(
fs_session
);
}
switch_safe_free
(
ccmd
);
switch_safe_free
(
ccmd
);
return
SWITCH_STATUS_SUCCESS
;
return
SWITCH_STATUS_SUCCESS
;
}
/*! \brief Process one frame of data with avmd algorithm
...
...
@@ -477,102 +477,102 @@ end:
*/
static
void
avmd_process
(
avmd_session_t
*
session
,
switch_frame_t
*
frame
)
{
switch_event_t
*
event
;
switch_status_t
status
;
switch_event_t
*
event_copy
;
switch_channel_t
*
channel
;
circ_buffer_t
*
b
;
size_t
pos
;
double
f
;
double
v
;
// double error = 0.0;
// double success = 0.0;
// double amp = 0.0;
// double s_rate;
// double e_rate;
// double avg_a;
//double sine_len;
uint32_t
sine_len_i
;
//uint32_t beep_len_i;
// int valid;
switch_event_t
*
event
;
switch_status_t
status
;
switch_event_t
*
event_copy
;
switch_channel_t
*
channel
;
circ_buffer_t
*
b
;
size_t
pos
;
double
f
;
double
v
;
// double error = 0.0;
// double success = 0.0;
// double amp = 0.0;
// double s_rate;
// double e_rate;
// double avg_a;
//double sine_len;
uint32_t
sine_len_i
;
//uint32_t beep_len_i;
// int valid;
b
=
&
session
->
b
;
/*! If beep has already been detected skip the CPU heavy stuff */
if
(
session
->
state
.
beep_state
==
BEEP_DETECTED
){
return
;
}
if
(
session
->
state
.
beep_state
==
BEEP_DETECTED
){
return
;
}
/*! Precompute values used heavily in the inner loop */
sine_len_i
=
SINE_LEN
(
session
->
rate
);
//sine_len = (double)sine_len_i;
//beep_len_i = BEEP_LEN(session->rate);
channel
=
switch_core_session_get_channel
(
session
->
session
);
sine_len_i
=
SINE_LEN
(
session
->
rate
);
//sine_len = (double)sine_len_i;
//beep_len_i = BEEP_LEN(session->rate);
channel
=
switch_core_session_get_channel
(
session
->
session
);
/*! Insert frame of 16 bit samples into buffer */
INSERT_INT16_FRAME
(
b
,
(
int16_t
*
)(
frame
->
data
),
frame
->
samples
);
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session->session), SWITCH_LOG_INFO, "<<< AVMD sine_len_i=%d >>>\n", sine_len_i);
/*! INNER LOOP -- OPTIMIZATION TARGET */
for
(
pos
=
session
->
pos
;
pos
<
(
GET_CURRENT_POS
(
b
)
-
P
);
pos
++
){
if
((
pos
%
sine_len_i
)
==
0
)
{
/*! Get a desa2 frequency estimate every sine len */
f
=
desa2
(
b
,
pos
);
if
(
f
<
MIN_FREQUENCY_R
(
session
->
rate
)
||
f
>
MAX_FREQUENCY_R
(
session
->
rate
))
{
v
=
99999
.
0
;
RESET_SMA_BUFFER
(
&
session
->
sma_b
);
RESET_SMA_BUFFER
(
&
session
->
sqa_b
);
}
else
{
APPEND_SMA_VAL
(
&
session
->
sma_b
,
f
);
APPEND_SMA_VAL
(
&
session
->
sqa_b
,
f
*
f
);
/* calculate variance */
v
=
session
->
sqa_b
.
sma
-
(
session
->
sma_b
.
sma
*
session
->
sma_b
.
sma
);
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
->
session
),
SWITCH_LOG_DEBUG
,
"<<< AVMD v=%f f=%f %fHz sma=%f sqa=%f >>>
\n
"
,
v
,
f
,
TO_HZ
(
session
->
rate
,
f
),
session
->
sma_b
.
sma
,
session
->
sqa_b
.
sma
);
}
INSERT_INT16_FRAME
(
b
,
(
int16_t
*
)(
frame
->
data
),
frame
->
samples
);
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session->session), SWITCH_LOG_INFO, "<<< AVMD sine_len_i=%d >>>\n", sine_len_i);
/*! If variance is less than threshold then we have detection */
if
(
v
<
VARIANCE_THRESHOLD
){
/*! INNER LOOP -- OPTIMIZATION TARGET */
for
(
pos
=
session
->
pos
;
pos
<
(
GET_CURRENT_POS
(
b
)
-
P
);
pos
++
){
if
((
pos
%
sine_len_i
)
==
0
)
{
/*! Get a desa2 frequency estimate every sine len */
f
=
desa2
(
b
,
pos
);
if
(
f
<
MIN_FREQUENCY_R
(
session
->
rate
)
||
f
>
MAX_FREQUENCY_R
(
session
->
rate
))
{
v
=
99999
.
0
;
RESET_SMA_BUFFER
(
&
session
->
sma_b
);
RESET_SMA_BUFFER
(
&
session
->
sqa_b
);
}
else
{
APPEND_SMA_VAL
(
&
session
->
sma_b
,
f
);
APPEND_SMA_VAL
(
&
session
->
sqa_b
,
f
*
f
);
/* calculate variance */
v
=
session
->
sqa_b
.
sma
-
(
session
->
sma_b
.
sma
*
session
->
sma_b
.
sma
);
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
->
session
),
SWITCH_LOG_DEBUG
,
"<<< AVMD v=%f f=%f %fHz sma=%f sqa=%f >>>
\n
"
,
v
,
f
,
TO_HZ
(
session
->
rate
,
f
),
session
->
sma_b
.
sma
,
session
->
sqa_b
.
sma
);
}
/*! If variance is less than threshold then we have detection */
if
(
v
<
VARIANCE_THRESHOLD
){
switch_channel_execute_on
(
switch_core_session_get_channel
(
session
->
session
),
"execute_on_avmd_beep"
);
/*! Throw an event to FreeSWITCH */
status
=
switch_event_create_subclass
(
&
event
,
SWITCH_EVENT_CUSTOM
,
AVMD_EVENT_BEEP
);
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
return
;
}
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"Beep-Status"
,
"stop"
);
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"Unique-ID"
,
switch_core_session_get_uuid
(
session
->
session
));
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"call-command"
,
"avmd"
);
if
((
switch_event_dup
(
&
event_copy
,
event
))
!=
SWITCH_STATUS_SUCCESS
)
{
return
;
}
switch_core_session_queue_event
(
session
->
session
,
&
event
);
switch_event_fire
(
&
event_copy
);
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
->
session
),
SWITCH_LOG_DEBUG
,
"<<< AVMD - Beep Detected >>>
\n
"
);
switch_channel_set_variable
(
channel
,
"avmd_detect"
,
"TRUE"
);
RESET_SMA_BUFFER
(
&
session
->
sma_b
);
RESET_SMA_BUFFER
(
&
session
->
sqa_b
);
session
->
state
.
beep_state
=
BEEP_DETECTED
;
return
;
}
//amp = 0.0;
//success = 0.0;
//error = 0.0;
}
}
session
->
pos
=
pos
;
status
=
switch_event_create_subclass
(
&
event
,
SWITCH_EVENT_CUSTOM
,
AVMD_EVENT_BEEP
);
if
(
status
!=
SWITCH_STATUS_SUCCESS
)
{
return
;
}
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"Beep-Status"
,
"stop"
);
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"Unique-ID"
,
switch_core_session_get_uuid
(
session
->
session
));
switch_event_add_header_string
(
event
,
SWITCH_STACK_BOTTOM
,
"call-command"
,
"avmd"
);
if
((
switch_event_dup
(
&
event_copy
,
event
))
!=
SWITCH_STATUS_SUCCESS
)
{
return
;
}
switch_core_session_queue_event
(
session
->
session
,
&
event
);
switch_event_fire
(
&
event_copy
);
switch_log_printf
(
SWITCH_CHANNEL_SESSION_LOG
(
session
->
session
),
SWITCH_LOG_DEBUG
,
"<<< AVMD - Beep Detected >>>
\n
"
);
switch_channel_set_variable
(
channel
,
"avmd_detect"
,
"TRUE"
);
RESET_SMA_BUFFER
(
&
session
->
sma_b
);
RESET_SMA_BUFFER
(
&
session
->
sqa_b
);
session
->
state
.
beep_state
=
BEEP_DETECTED
;
return
;
}
//amp = 0.0;
//success = 0.0;
//error = 0.0;
}
}
session
->
pos
=
pos
;
}
/* For Emacs:
...
...
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