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Added MixMonitorMute manager command

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Added a new manager command to mute/unmute MixMonitor audio on a channel. 
Added a new feature to audiohooks so that you can mute either read / write
(or both) types of frames - this allows for MixMonitor to mute either side
of the conversation without affecting the conversation itself.

(closes issue #16740)
Reported by: jmls

Review: https://reviewboard.asterisk.org/r/487/



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@258190 65c4cc65-6c06-0410-ace0-fbb531ad65f3
certified/1.8.6
Julian Lyndon-Smith 15 years ago
parent ea9186d4ea
commit d85650e4aa
6 changed files with 166 additions and 14 deletions
Show Stats Download Patch File Download Diff File

92
apps/app_mixmonitor.c
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@ -46,6 +46,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/app.h"
#include "asterisk/channel.h"
#include "asterisk/autochan.h"
#include "asterisk/manager.h"
/*** DOCUMENTATION
<application name="MixMonitor" language="en_US">
@ -124,7 +125,27 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
<ref type="application">MixMonitor</ref>
</see-also>
</application>
<manager name="MixMonitorMute" language="en_US">
<synopsis>
Mute / unMute a Mixmonitor recording.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Used to specify the channel to mute.</para>
</parameter>
<parameter name="Direction">
<para>Which part of the recording to mute: read, write or both (from channel, to channel or both channels).</para>
</parameter>
<parameter name="State">
<para>Turn mute on or off : 1 to turn on, 0 to turn off.</para>
</parameter>
</syntax>
<description>
<para>This action may be used to mute a MixMonitor recording.</para>
</description>
</manager>
***/
#define get_volfactor(x) x ? ((x > 0) ? (1 << x) : ((1 << abs(x)) * -1)) : 0
@ -606,6 +627,73 @@ static char *handle_cli_mixmonitor(struct ast_cli_entry *e, int cmd, struct ast_
return CLI_SUCCESS;
}
/*! \brief Mute / unmute a MixMonitor channel */
static int manager_mute_mixmonitor(struct mansession *s, const struct message *m)
{
struct ast_channel *c = NULL;
const char *name = astman_get_header(m, "Channel");
const char *id = astman_get_header(m, "ActionID");
const char *state = astman_get_header(m, "State");
const char *direction = astman_get_header(m,"Direction");
int clearmute = 1;
enum ast_audiohook_flags flag;
if (ast_strlen_zero(direction)) {
astman_send_error(s, m, "No direction specified. Must be read, write or both");
return AMI_SUCCESS;
}
if (!strcasecmp(direction, "read")) {
flag = AST_AUDIOHOOK_MUTE_READ;
} else if (!strcasecmp(direction, "write")) {
flag = AST_AUDIOHOOK_MUTE_WRITE;
} else if (!strcasecmp(direction, "both")) {
flag = AST_AUDIOHOOK_MUTE_READ | AST_AUDIOHOOK_MUTE_WRITE;
} else {
astman_send_error(s, m, "Invalid direction specified. Must be read, write or both");
return AMI_SUCCESS;
}
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "No channel specified");
return AMI_SUCCESS;
}
if (ast_strlen_zero(state)) {
astman_send_error(s, m, "No state specified");
return AMI_SUCCESS;
}
clearmute = ast_false(state);
c = ast_channel_get_by_name(name);
if (!c) {
astman_send_error(s, m, "No such channel");
return AMI_SUCCESS;
}
if (ast_audiohook_set_mute(c, mixmonitor_spy_type, flag, clearmute)) {
c = ast_channel_unref(c);
astman_send_error(s, m, "Cannot set mute flag");
return AMI_SUCCESS;
}
astman_append(s, "Response: Success\r\n");
if (!ast_strlen_zero(id)) {
astman_append(s, "ActionID: %s\r\n", id);
}
astman_append(s, "\r\n");
c = ast_channel_unref(c);
return AMI_SUCCESS;
}
static struct ast_cli_entry cli_mixmonitor[] = {
AST_CLI_DEFINE(handle_cli_mixmonitor, "Execute a MixMonitor command")
};
@ -617,6 +705,7 @@ static int unload_module(void)
ast_cli_unregister_multiple(cli_mixmonitor, ARRAY_LEN(cli_mixmonitor));
res = ast_unregister_application(stop_app);
res |= ast_unregister_application(app);
res |= ast_manager_unregister("MixMonitorMute");
return res;
}
@ -628,6 +717,7 @@ static int load_module(void)
ast_cli_register_multiple(cli_mixmonitor, ARRAY_LEN(cli_mixmonitor));
res = ast_register_application_xml(app, mixmonitor_exec);
res |= ast_register_application_xml(stop_app, stop_mixmonitor_exec);
res |= ast_manager_register_xml("MixMonitorMute", 0, manager_mute_mixmonitor);
return res;
}

12
include/asterisk/audiohook.h
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@ -62,6 +62,8 @@ enum ast_audiohook_flags {
* slinfactories. We will flush the factories if they contain too many samples.
*/
AST_AUDIOHOOK_SMALL_QUEUE = (1 << 3),
AST_AUDIOHOOK_MUTE_READ = (1 << 4), /*!< audiohook should be mute frames read */
AST_AUDIOHOOK_MUTE_WRITE = (1 << 5), /*!< audiohook should be mute frames written */
};
#define AST_AUDIOHOOK_SYNC_TOLERANCE 100 /*< Tolerance in milliseconds for audiohooks synchronization */
@ -277,6 +279,16 @@ int ast_audiohook_volume_get(struct ast_channel *chan, enum ast_audiohook_direct
*/
int ast_audiohook_volume_adjust(struct ast_channel *chan, enum ast_audiohook_direction direction, int volume);
/*! \brief Mute frames read from or written to a channel
* \param chan Channel to muck with
* \param source Type of audiohook
* \param flag which direction to set / clear
* \param clear set or clear muted frames on direction based on flag parameter
* \retval 0 success
* \retval -1 failure
*/
int ast_audiohook_set_mute(struct ast_channel *chan, const char *source, enum ast_audiohook_flags flag, int clear);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

5
include/asterisk/frame.h
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@ -728,6 +728,11 @@ static force_inline int ast_format_rate(format_t format)
}
}
/*!
* \brief Clear all audio samples from an ast_frame. The frame must be AST_FRAME_VOICE and AST_FORMAT_SLINEAR
*/
int ast_frame_clear(struct ast_frame *frame);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

46
main/audiohook.c
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@ -127,6 +127,7 @@ int ast_audiohook_write_frame(struct ast_audiohook *audiohook, enum ast_audiohoo
int our_factory_ms;
int other_factory_samples;
int other_factory_ms;
int muteme = 0;
/* Update last feeding time to be current */
*rwtime = ast_tvnow();
@ -151,6 +152,17 @@ int ast_audiohook_write_frame(struct ast_audiohook *audiohook, enum ast_audiohoo
ast_slinfactory_flush(other_factory);
}
/* swap frame data for zeros if mute is required */
if ((ast_test_flag(audiohook, AST_AUDIOHOOK_MUTE_READ) && (direction == AST_AUDIOHOOK_DIRECTION_READ)) ||
(ast_test_flag(audiohook, AST_AUDIOHOOK_MUTE_WRITE) && (direction == AST_AUDIOHOOK_DIRECTION_WRITE)) ||
(ast_test_flag(audiohook, AST_AUDIOHOOK_MUTE_READ | AST_AUDIOHOOK_MUTE_WRITE) == (AST_AUDIOHOOK_MUTE_READ | AST_AUDIOHOOK_MUTE_WRITE))) {
muteme = 1;
}
if (muteme && frame->datalen > 0) {
ast_frame_clear(frame);
}
/* Write frame out to respective factory */
ast_slinfactory_feed(factory, frame);
@ -1001,3 +1013,37 @@ int ast_audiohook_volume_adjust(struct ast_channel *chan, enum ast_audiohook_dir
return 0;
}
/*! \brief Mute frames read from or written to a channel
* \param chan Channel to muck with
* \param source Type of audiohook
* \param flag which flag to set / clear
* \param clear set or clear
* \return Returns 0 on success, -1 on failure
*/
int ast_audiohook_set_mute(struct ast_channel *chan, const char *source, enum ast_audiohook_flags flag, int clear)
{
struct ast_audiohook *audiohook = NULL;
ast_channel_lock(chan);
/* Ensure the channel has audiohooks on it */
if (!chan->audiohooks) {
ast_channel_unlock(chan);
return -1;
}
audiohook = find_audiohook_by_source(chan->audiohooks, source);
if (audiohook) {
if (clear) {
ast_clear_flag(audiohook, flag);
} else {
ast_set_flag(audiohook, flag);
}
}
ast_channel_unlock(chan);
return (audiohook ? 0 : -1);
}

12
main/frame.c
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@ -1587,3 +1587,15 @@ int ast_frame_slinear_sum(struct ast_frame *f1, struct ast_frame *f2)
return 0;
}
int ast_frame_clear(struct ast_frame *frame)
{
struct ast_frame *next;
for (next = AST_LIST_NEXT(frame, frame_list);
frame;
frame = next, next = frame ? AST_LIST_NEXT(frame, frame_list) : NULL) {
memset(frame->data.ptr, 0, frame->datalen);
}
return 0;
}

13
res/res_mutestream.c
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@ -116,19 +116,6 @@ static const struct ast_datastore_info mute_datastore = {
.destroy = destroy_callback
};
/*! \brief Wipe out all audio samples from an ast_frame. Clean it. */
static void ast_frame_clear(struct ast_frame *frame)
{
struct ast_frame *next;
for (next = AST_LIST_NEXT(frame, frame_list);
frame;
frame = next, next = frame ? AST_LIST_NEXT(frame, frame_list) : NULL) {
memset(frame->data.ptr, 0, frame->datalen);
}
}
/*! \brief The callback from the audiohook subsystem. We basically get a frame to have fun with */
static int mute_callback(struct ast_audiohook *audiohook, struct ast_channel *chan, struct ast_frame *frame, enum ast_audiohook_direction direction)
{

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