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channel/chan_pjsip: add dialplan function for music on hold

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Add a new dialplan function PJSIP_MOH_PASSTHROUGH that allows
the on-hold behavior to be controlled on a per-call basis

ASTERISK-28542 #close

Change-Id: Iebe905b2ad6dbaa87ab330267147180b05a3c3a8
This commit is contained in:
Torrey Searle
2019-09-19 10:56:26 +02:00
committed by Torrey Searle
parent 1b6513c5dd
commit b43cdc7f1e
6 changed files with 113 additions and 2 deletions
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65
channels/pjsip/dialplan_functions.c
View File

@@ -80,6 +80,19 @@
<para>This function uses the same DTMF mode naming as the dtmf_mode configuration option</para>
</description>
</function>
<function name="PJSIP_MOH_PASSTHROUGH" language="en_US">
<synopsis>
Get or change the on-hold behavior for a SIP call.
</synopsis>
<syntax>
</syntax>
<description>
<para>When read, returns the current moh passthrough mode</para>
<para>When written, sets the current moh passthrough mode</para>
<para>If <replaceable>yes</replaceable>, on-hold re-INVITEs are sent. If <replaceable>no</replaceable>, music on hold is generated.</para>
<para>This function can be used to override the moh_passthrough configuration option</para>
</description>
</function>
<function name="PJSIP_SEND_SESSION_REFRESH" language="en_US">
<synopsis>
W/O: Initiate a session refresh via an UPDATE or re-INVITE on an established media session
@@ -1431,6 +1444,34 @@ int pjsip_acf_dtmf_mode_read(struct ast_channel *chan, const char *cmd, char *da
return 0;
}
int pjsip_acf_moh_passthrough_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
{
struct ast_sip_channel_pvt *channel;
if (!chan) {
ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
return -1;
}
if (len < 3) {
ast_log(LOG_WARNING, "%s: buffer too small\n", cmd);
return -1;
}
ast_channel_lock(chan);
if (strcmp(ast_channel_tech(chan)->type, "PJSIP")) {
ast_log(LOG_WARNING, "Cannot call %s on a non-PJSIP channel\n", cmd);
ast_channel_unlock(chan);
return -1;
}
channel = ast_channel_tech_pvt(chan);
strncpy(buf, AST_YESNO(channel->session->moh_passthrough), len);
ast_channel_unlock(chan);
return 0;
}
struct refresh_data {
struct ast_sip_session *session;
enum ast_sip_session_refresh_method method;
@@ -1574,6 +1615,30 @@ int pjsip_acf_dtmf_mode_write(struct ast_channel *chan, const char *cmd, char *d
return ast_sip_push_task_wait_serializer(channel->session->serializer, dtmf_mode_refresh_cb, &rdata);
}
int pjsip_acf_moh_passthrough_write(struct ast_channel *chan, const char *cmd, char *data, const char *value)
{
struct ast_sip_channel_pvt *channel;
if (!chan) {
ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
return -1;
}
ast_channel_lock(chan);
if (strcmp(ast_channel_tech(chan)->type, "PJSIP")) {
ast_log(LOG_WARNING, "Cannot call %s on a non-PJSIP channel\n", cmd);
ast_channel_unlock(chan);
return -1;
}
channel = ast_channel_tech_pvt(chan);
channel->session->moh_passthrough = ast_true(value);
ast_channel_unlock(chan);
return 0;
}
static int refresh_write_cb(void *obj)
{
struct refresh_data *data = obj;

25
channels/pjsip/include/dialplan_functions.h
View File

@@ -72,6 +72,31 @@ int pjsip_acf_dtmf_mode_read(struct ast_channel *chan, const char *cmd, char *da
*/
int pjsip_acf_dtmf_mode_write(struct ast_channel *chan, const char *cmd, char *data, const char *value);
/*!
* \brief PJSIP_MOH_PASSTHROUGH function read callback
* \param chan The channel the function is called on
* \param cmd The name of the function
* \param data Arguments passed to the function
* \param buf Out buffer that should be populated with the data
* \param len Size of the buffer
*
* \retval 0 on success
* \retval -1 on failure
*/
int pjsip_acf_moh_passthrough_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len);
/*!
* \brief PJSIP_MOH_PASSTHROUGH function write callback
* \param chan The channel the function is called on
* \param cmd The name of the function
* \param data Arguments passed to the function
* \param value Value to be set by the function
*
* \retval 0 on success
* \retval -1 on failure
*/
int pjsip_acf_moh_passthrough_write(struct ast_channel *chan, const char *cmd, char *data, const char *value);
/*!
* \brief PJSIP_MEDIA_OFFER function read callback
* \param chan The channel the function is called on