[Asterisk-code-review] ConfBridge: Make some announcements asynchronous. (asterisk[13])

[Mark Michelson]

Mark Michelson has uploaded a new patch set (#7).

Change subject: ConfBridge: Make some announcements asynchronous.
......................................................................

ConfBridge: Make some announcements asynchronous.

Confbridge announcements tend to block a channel while they are being
played. In some circumstances, this is warranted since you want that
particular channel not to hear the announcement (Example: "John Doe has
entered the conference"). For others it makes less sense.

This change first introduces methods for playing sounds asynchronously
into the conference. This is very similar to how synchronous sounds are
played, except the channel initiating the playback does not wait for the
sound to complete before moving on.

Asynchronous announcements are used for two circumstances:
* Sounds played for a user after they have left the bridge
* Sounds that play first to a single user and then the rest of the
  conference (if the channel and conference use the same language)

ASTERISK-26289 #close
Reported by Mark Michelson

Change-Id: Ie486bb3de1646d50894489030326a423e594ab0a
---
M CHANGES
M apps/app_confbridge.c
M apps/confbridge/conf_state_multi_marked.c
M apps/confbridge/include/confbridge.h
4 files changed, 375 insertions(+), 41 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/04/3504/7
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ie486bb3de1646d50894489030326a423e594ab0a
Gerrit-PatchSet: 7
Gerrit-Project: asterisk
Gerrit-Branch: 13
Gerrit-Owner: Mark Michelson <mmichelson at digium.com>
Gerrit-Reviewer: Anonymous Coward #1000019
Gerrit-Reviewer: Mark Michelson <mmichelson at digium.com>
Gerrit-Reviewer: Richard Mudgett <rmudgett at digium.com>