When <http://github.com/BelledonneCommunications/bcg729> is installed, PJProject
tries to link that. Support for this bcg729 was added with PJProject 2.7. The
issue happens, because Teluu enabled that new feature on default.

ASTERISK-27584
Reported by: Stuart Henderson

Change-Id: I88b6b18ad777bcfe2d8201187b4b90eec0a172a6

* Made the AMI ConfbridgeList action's ConfbridgeList events output all
the standard channel snapshot headers instead of a few hand-coded channel
snapshot headers.  The benefit is that the CallerIDName gets disruptive
characters like CR, LF, Tab, and a few others escaped.  However, an empty
CallerIDName is now output as "<unknown>" instead of "<no name>".

ASTERISK-27651

Change-Id: Iaf7d54a9d40194c2db060bc9b4979fab6720d977

ASTERISK-27651

Change-Id: Idef2ca54d242d1b894efd3fc7b360bc6fd5bdc34

It seems that the ALSA backend of PortAudio doesn't know how to both
read and write at the same time by adding a per-device mutex.

FIXME: currently only a draft version. Need to either auto-detect
we work with the ALSA backend or add an extra configuration option
to use this mutex.

ASTERISK-27426 #close

Change-Id: I635eacee45f5413faa18f5a3b606af03b926dacb

res_pjsip_endpoint_identifier_user.c:
* Fix copy/paste error in find_endpoint().  We were using a constant
"anonymous" string instead of the passed in endpoint_name when checking
the transport domain for an endpoint match.
* Eliminate RAII_VAR in find_endpoint().
* Remove always true check in find_transport_state_in_use().
* Remove useless CMD_STOP in find_transport_state_in_use().

res_pjsip_endpoint_identifier_anonymous.c:
* Eliminate RAII_VAR in anonymous_identify().
* Remove always true check in find_transport_state_in_use().
* Remove useless CMD_STOP in find_transport_state_in_use().

Change-Id: I86924c31db5bd225ca0c1219c761b668c6f91189

What is the point of defining an alias and not saying what is being
aliased?

Change-Id: I98a892016ed61dcf5efeb6619fd748925103f0be

Change-Id: I82ae0b92bfa2ece84a5c684efd9eefdc83ebd068

Change-Id: I3c7106ff77009754725cee790eadf5da44154ab6

* Changed to create ami_event string only when the given blob is not
json_null().
* Fixed bad expression.

ASTERISK-27621

Change-Id: Ice58c16361f9d9e8648261c9ed5d6c8245fb0d8f

ASTERISK-27652 #close

Change-Id: I78a0d38bfd8d0d82830f3d53da04872d6b67284d

Change-Id: I8f494b0c895a69b8bc94656d0c6ceebecb0394d8

ast_str_append_event_header() could potentially leak and corrupt memory if
the ast_str needed to expand to add the AMI event header.

* Fixed to return error if the ast_str_append() failed.

Change-Id: I92f36b855540743b208d76e274152ee2d758176d

* Made not allocate memory if the channel snapshot is an internal channel.

* Free memory earlier when no longer needed.

Change-Id: Ia06e0c065f1bd095781aa3f4a626d58fa4d28b38

Verified nothing in the testsuite lists this module as a dependency.

Change-Id: I90c7d52c7e15e85fde3389d5eaccb05b97848813

Currently in app_confbridge if someone mutes a channel while that channel
is talking, the talk detection code is suspended while the channel is
muted.  As far an an external observer is concerned, the muted channel's
talk status is still "talking" even though the channel is not contributing
audio to the conference bridge.  When the channel is later unmuted, it
takes the usual 'dsp_silence_threshold' option time to clear the talking
status even though the channel may have stopped talking while the channel
was muted.

* In bridge_softmix.c, clear the talking status and report talking stopped
if the channel was talking when the channel is muted.  When the channel is
unmuted and the channel is still talking then report the channel as
talking since it is contributing audio to the bridge again.

ASTERISK-27647

Change-Id: Ie4fdbc05a0bc7343c2972bab012e2567917b3d4e

The dsp_talking_threshold does not represent time in milliseconds.  It
represents the average magnitude per sample in the audio packets.  This is
what the DSP uses to determine if a packet is silence or talking/noise.

Change-Id: If6f939c100eb92a5ac6c21236559018eeaf58443

Need to include signal.h to define pthread_kill() and SIGURG.

Change-Id: I10ae3aa4bf8e7386ac29ade78c0f2caed8e674fa