[Asterisk-code-review] audiohook: add directional awareness (asterisk[18])

[Michael Bradeen]

Attention is currently required from: Michael Bradeen, N A.

Hello Joshua Colp, N A, Friendly Automation, 

I'd like you to reexamine a change. Please visit

    https://gerrit.asterisk.org/c/asterisk/+/19318

to look at the new patch set (#3).

Change subject: audiohook: add directional awareness
......................................................................

audiohook: add directional awareness

Add enum to allow setting optional direction. If set to only one
direction, only feed matching-direction frames to the associated
slin factory.

This prevents mangling the transcoder on non-mixed frames when the
READ and WRITE frames would have otherwise required it.  Also
removes the need to mute or discard the un-wanted frames as they
are no longer added in the first place.

res_stasis_snoop is changed to use this addition to set direction
on audiohook based on spy direction.

If no direction is set, the ast_audiohook_init will init this enum
to BOTH which maintains existing functionality.

ASTERISK-30252

Change-Id: If8716bad334562a5d812be4eeb2a92e4f3be28eb
---
M include/asterisk/audiohook.h
M main/audiohook.c
M res/res_stasis_snoop.c
3 files changed, 66 insertions(+), 13 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/18/19318/3
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Gerrit-Project: asterisk
Gerrit-Branch: 18
Gerrit-Change-Id: If8716bad334562a5d812be4eeb2a92e4f3be28eb
Gerrit-Change-Number: 19318
Gerrit-PatchSet: 3
Gerrit-Owner: Michael Bradeen <mbradeen at sangoma.com>
Gerrit-Reviewer: Friendly Automation
Gerrit-Reviewer: Joshua Colp <jcolp at sangoma.com>
Gerrit-Reviewer: N A <mail at interlinked.x10host.com>
Gerrit-Attention: Michael Bradeen <mbradeen at sangoma.com>
Gerrit-Attention: N A <mail at interlinked.x10host.com>
Gerrit-MessageType: newpatchset
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