In the file implementations follow the rules:

1. Firstly goes the correlated header file, then one empty row.
2. Secondly go system headers, so in angle-brackets, then one empty row.
3. Thirdly, go custom header files, so in double quotes,
   then one empty row.
4. If there is "xt_RTPENGINE.h", it's mentioned next, but separately,
   then one empty row.
5. If there are pre-processor definitions, they are added.
6. And eventually at least one empty row before the code.

In some situations it's allowed to step aside from the rules,
when inclusions are dependent on each other, so on the sequence,
and also possibly on some inline objects definitions, but if possible
to follow the rules, it's being done.

Change-Id: Ie512a970e230fe202398656d1942e8874bb14cd9

Change-Id: Idcd7d703952d5559d3e13bf681cf7342e6768f12

Change-Id: I1f01fdf74d6d3952413ebc02dfdb9770b324481c

Change-Id: I241190eb84420e8d84b5267d2ba47906ddbd5e6c

Change-Id: I874680db25f26466400f4a08641a97cb6f7be36b

closes #1747

Change-Id: Ie19b01a5003428b4645057abc037163ccfbd44d8

previously, dtmf_inject wouldn't add the events as the dtmf_payload_type
was set to -1 as part of the delay buffer handling. However, as we
know we want this DTMF, this change updates the function to check for
and use the real_dtmf_payload_type value

Then, in codec_add_dtmf_event, we can check the injected bool and
if set, use the real_dtmf_payload_type again to decide whether to
push the event onto the queue

closes #1722

Change-Id: I34e35f92e014f4aed9e045737df7400155b86602

closes #1701

Change-Id: I1bc894bf7cc1b716ec847045dcf1bf4a676e81f7

Change-Id: Iaf5f98dd4820669e1ee0133dceed8a6a6d791b23

DTMF injection must use the codec handler of the primary payload (audio
stream), not the handler of the DTMF PT itself.

Change-Id: Ied2d1f969bfc76ef7af0ada063b90a47c4633557

Support using the SSRC TS derived from received RTP packets as "encoder"
TS (the "next" expected TS) for passthrough RTP in addition to the FIFO
TS of an actual encoder.

Change-Id: I7c49c27651eb89c5349bbf290b1c0ad160f77e3b

The "duration" is not valid for events which are not end events as
there's no previous event to derive a duration from.

Change-Id: I3f9dad536b168cce24d1a58c5bcf25e5cacfe7a8

Change-Id: I3a6bcc8453c7623887e042b083e0eb685dd91127

Closes #1628

Change-Id: If2a4175cc64e1143de8c749676ed215f7dc52915

In order to support a per-call toggle for DTMF logging without having
the global config option set, we always open the socket just in case.

Change-Id: Ibb62672afa21e41623e74603214b4d9d8b94443c

Make it possible to send to other/multiple destinations

Change-Id: Ic46f420f5fb9719c72063966f3e8e8fe73ed817a

global config option that defaults to false to preserve existing
behaviour

Closes #1627

Change-Id: I78a88fcc5c262f1786bf0812753231a0076e0c88

Support multiple tone frequencies for DTMF-security=tone to enable
audibly distinguishing multiple consecutive DTMF events from one
another.

Change-Id: I6fa33a5768aae198220d0b0cc4c53308c5661a52

The `dtmf_send` event might not have a matching entry while handling a
received DTMF event. Move bookkeeping of the random output event into
`dtmf_recv`.

Change-Id: I5507b0b7f5eca6e29cbcaccc905ab25249b22aa3

Create a dedicated struct to hold certain attributes shared by both sink
handlers and media subscriptions, as a preparation to simplify handling
these attributs.

Change-Id: I866159c33ed6d6a2873d2cf68c4906ea705d253e

Change-Id: I7307b63a8f5a10aa3b5c98fb48218bcc7a123441

Change-Id: Ib960108003d5aa13ba1732d7a5e8c6720feca5c0

Change-Id: Ie61bc4e9ea8bcd4fdf540cce67acb8032eecff63

Change-Id: I6098b6f01141e8fb6967f74538416ccede471fa3
Warned-by: coverity

Change-Id: I9dacb34cf92d461029bfb393a251736676431fc7
Warned-by: coverity

Change-Id: I62dce272a1acc0a9a3b6b8c37df68a18357dbee4

Change-Id: I2e0619071d43df8537736187104ca12bb2f86f64

Change-Id: I09aec46cad4cbb92aab67b7e9158d4d1598df186

Change-Id: I32e0d02e739ceb5a34aaf187b1ea086482e6d73e

Change-Id: Ic78a34042ad664bd54e35647636864ea99e60385

Change-Id: I48d612697ac3f89852b2b7374cf6e442e4a8222e

Change-Id: I4100c1511be743901d302491238872990f213118

Change-Id: If693800a955a9ddf7245da0082426ae609deb407

Change-Id: I8bfa1cb9067a00958a2a1415b82e01c02deaf758

Change-Id: I72fe6b670c42fe4ed6ba32a1fd142c290b2aaca2

Change-Id: I420f56674a639a4b41b5333d8d9b8ffa843a7042

Change-Id: I885fbf7973133af8d7c9184eb0e75f5401309c8e

Change-Id: I80fd35da680d4ad1f4d3d21f14f11363106b9917

Change-Id: Id577f9afabbe5645a6e220b6450c39a35ff839a9

Complete overhaul of the codec handling code:

*) obsolete flags `asymmetric codecs`, `symmetric codecs`, `reorder
codecs`

*) support proper codec offer/answer

*) split codec manipulation (strip/offer/accept/etc) into separate
functions for clarity and better code maintenance

*) fully update codec handlers in both directions after an answer

*) explicit allocation and handling of codecs and payload types in a
codec_store object

*) improve codec matchup logic during answer

*) more explicit handling of supplemental codecs (CN/DTMF)

*) remove now obsolete hacks for handling certain use cases

Change-Id: I996705ba8fe339524c2f70e6bb0fd854f9a1f4fb

This solves problems when the same SSRC is looped through the same call
multiple times in different mono/dialogues, with different parameters.

Change-Id: I1d033cb1f012574d82b5bcbfffe11eb5f983cfd8

Warned-by: coverity

Change-Id: Ia473075046253b2ffcf65344f65469772e6df993

get_ssrc_ctx() returns a new reference to the SSRC object, therefore we
must release the referece when we're done with it.

Change-Id: I0db07e4cca49a37af68d072ac6d0630c025b8809

This makes the type in line with string(3) functions and eliminates some
compiler warnings.

Also update the related bencode data type.

Change-Id: I7ef4024f4b5a0f737b3dbe03bcd078032395bce6

The tracker.most array is of unsigned char, so pt which gets
unconditionally assigned will always be >= 0.

Change-Id: I8adc06fc6c65aa0e33ef6614eb77c67b0dc07517
Warned-by: lgtm

Change-Id: I9612d692c3c6945c93b3194760383e67e5bca0e0

Log an error and continue anyway if the send() failed, this is just
logging.

Change-Id: I542385489f8e37e6e524b766371fed3ba558ff2f

closes #1183

commit a74cf4a7f9
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Feb 2 11:06:50 2021 +0100

    Add --dtmf-log-ng-tcp CLI option.

commit a428764d9b
Merge: 2bbfcb27 8abc6b1c
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Feb 2 09:16:26 2021 +0100

    Merge branch 'master' into dtmf_events_over_ng_tcp

commit 2bbfcb2750
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 14:28:07 2021 +0100

    Replace hex values with chars.

commit dc1084d122
Merge: 2bce444b 2c7163ea
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:53:27 2021 +0100

    Merge branch 'dtmf_events_over_ng_tcp' of github.com:enreached/rtpengine into dtmf_events_over_ng_tcp

commit 2bce444b26
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit 5a256fd3ae
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit a14f4034b9
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

commit b861fe3087
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit 7bfe08fb08
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit 2c7163eaf3
Merge: fd286813 9165bf1f
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:49:00 2021 +0100

    Merge branch 'dtmf_events_over_ng_tcp' of github.com:enreached/rtpengine into dtmf_events_over_ng_tcp

commit fd28681350
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jan 29 10:20:02 2021 -0500

    TT#14008 fix AEAD kernel API for < 4.2

    Untested whether it actually works

    closes #1176

    Change-Id: If6398632ac62525a673b844cfb4ce842a8aa0346

commit 0626dcdd96
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jan 29 13:07:25 2021 -0500

    TT#14008 improve log output for stray packets

    Change-Id: Ic4b03928b279aade761de3ba1646b5c27318e6a3

commit 8fcccb77cc
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit f0d90d1831
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit 37462b8e4d
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

commit 9165bf1f75
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit d616f2941f
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit bb063386c6
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

commit b28ab07532
Merge: 813a4f1c 6e4373af
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:21:31 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit 813a4f1caa
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit 0c87a19c55
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit 6e4373affb
Merge: fbf74bfe 7799f23a
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:19:46 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit fbf74bfe2d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jan 27 10:18:14 2021 -0500

    TT#14008 fix possible segfault

    closes #1172

    Change-Id: I94bb52c290c2032073e54528283660f03e694033

commit 1a5bcc0905
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 14:49:43 2021 -0500

    TT#109251 fix redis restore segfault

    Change-Id: I501a47b065e7b8ff28a3ac157c0ce567f228557f

commit b38b49fd60
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:44:44 2021 -0500

    TT#102450 added tests for Ia9fa96cf

    Change-Id: Ic9728e12a012335c30c5640ac0b5c88e39ad24ed

commit f33877bfe3
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:43:46 2021 -0500

    TT#102450 fix some timestamping issues

    Make sure G.722 rate multiplies is applied in the right places

    Don't trust encoders to return proper timestamps, but instead track them
    explicitly based on frame duration

    Change-Id: Ia9fa96cf662da97159fa170c3a3f37516889e1bd

commit 39a25b954d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 14:07:53 2021 -0500

    TT#106101 mem leak fix for 554034eb7e

    Change-Id: I9c410211580d8513a203a29f898970a78175d08b

commit 11d11aed90
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:41:28 2021 -0500

    TT#14008 clean up some tests

    Looks like packet order can be an issue in some cases

    Change-Id: Ib8fb8c553c9d0f2919b24dda1e15e5a23832c619

commit 7799f23aa5
Merge: ba7ee9d6 e191e16c
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:18:24 2021 +0100

    Merge branch 'master' of https://github.com/sipwise/rtpengine into control_ng_tcp

commit ba7ee9d6b1
Merge: f805d881 ffe187f1
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:15:58 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit f805d881fa
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit c548a3ca4b
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit ffe187f116
Author: Damir Nedžibović <damir.nedzibovic@bad-team.net>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

Change-Id: I8383fa80bce59aa865009e34caff5263b97ab588

Change-Id: I21c76fef05d6af394f09476e9761c439e7a0da44

Change-Id: Id877b8464e99cfd5dca728a01fcdc3ffc654d698