2897 Commits

Author SHA1 Message Date
Tony Herre
418bcf2acb Expose a PeerConnection's NetworkControllerInterface instance
Allow API users to access the NetworkControllerInterface instance that a
given PC ended up with, to allow integrators who have provided a
PeerConnectionFactoryDependencies.network_controller_factory to
associate a created instance of their custom network controller with the
PC using it.

Eg for the RTCRtpTransport Chromium implementation as in crrev.com/c/5607744.

Bug: chromium:345101934
Change-Id: Ia712ca4f45b90d5078f4e8e5977622d3e9f9aa6f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353980
Commit-Queue: Tony Herre <herre@google.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42506}
2024-06-18 08:04:03 +00:00
Harald Alvestrand
c74412b304 Deprecate rtc::RefCountInterface
and move usages to webrtc::RefCountInterface

This CL also moves more stuff to webrtc:: and adds backwards
compatible aliases for them.

Bug: webrtc:42225969
Change-Id: Iefb8542cff793bd8aa46bef8f2f3c66a1e979d07
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353720
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42446}
2024-06-07 09:47:26 +00:00
Philipp Hancke
4158678b46 Split "helpers" from SSL target to "crypto_random" and rename
since it contains helpers mostly related to cryptographically secure random numbers and strings.

BUG=webrtc:339300437

Change-Id: I10db939534b25dc792ac1600a4721d1b84521880
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/352620
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42441}
2024-06-07 06:41:51 +00:00
Harald Alvestrand
6431a64f02 Reland "Run IWYU on some files I intend to work on"
This reverts commit fe34363ca0ff9d79d7d0943a98ae3a5198e61f75.

Reason for revert: Downstream error fixed.

Original change's description:
> Revert "Run IWYU on some files I intend to work on"
>
> This reverts commit 827da15f1408a399ed15ce5c9726b6af772fb71a.
>
> Reason for revert: Breaks downstream project
>
> Original change's description:
> > Run IWYU on some files I intend to work on
> >
> > and files that broke when I fixed the first set.
> >
> > Bug: webrtc:42226242
> > Change-Id: I321cd63537ab3002098c7bdecd889a6fc5a1eb25
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353421
> > Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> > Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> > Auto-Submit: Harald Alvestrand <hta@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#42429}
>
> Bug: webrtc:42226242
> Change-Id: I6b18dced08669c6741c6a51768fbb8b9072c6e82
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353580
> Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#42430}

Bug: webrtc:42226242
Change-Id: I8ba51da47ea34d6bbf868e5ebc0037c6cffec8ba
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353660
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42437}
2024-06-05 08:59:49 +00:00
Mirko Bonadei
fe34363ca0 Revert "Run IWYU on some files I intend to work on"
This reverts commit 827da15f1408a399ed15ce5c9726b6af772fb71a.

Reason for revert: Breaks downstream project

Original change's description:
> Run IWYU on some files I intend to work on
>
> and files that broke when I fixed the first set.
>
> Bug: webrtc:42226242
> Change-Id: I321cd63537ab3002098c7bdecd889a6fc5a1eb25
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353421
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Auto-Submit: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42429}

Bug: webrtc:42226242
Change-Id: I6b18dced08669c6741c6a51768fbb8b9072c6e82
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353580
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#42430}
2024-06-04 11:36:06 +00:00
Harald Alvestrand
827da15f14 Run IWYU on some files I intend to work on
and files that broke when I fixed the first set.

Bug: webrtc:42226242
Change-Id: I321cd63537ab3002098c7bdecd889a6fc5a1eb25
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353421
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42429}
2024-06-04 10:59:05 +00:00
Philipp Hancke
635d365d49 deflake rtcp-rsize test in TSAN
which is showing up too often in
  https://ci.chromium.org/ui/p/webrtc/builders/try/linux_tsan2
The actual failure seems to be around ice candidate destructors and what
makes this test special is that it accessed local_description() which is now avoided. MsidSignalingInSubsequentOfferAnswer shows a similar usage but seems much less flaky.

BUG=webrtc:340041654

Change-Id: Iba1369c62918c56b0904724f28109a7308cefee3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351565
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42384}
2024-05-27 12:51:11 +00:00
Harald Alvestrand
3214fbc725 Reland "p2p: reduce visibility of ICE tiebreaker further"
This reverts commit dbbb6cabc3d25faa61864ad1610bcfdd2cbedf23.

Reason for revert: Fixed downstream issues (in p2)

Original change's description:
> Revert "p2p: reduce visibility of ICE tiebreaker further"
>
> This reverts commit b5df2ba10db3cd04febcde8727e782457708f2fa.
>
> Reason for revert: Breaks downstream
>
> Original change's description:
> > p2p: reduce visibility of ICE tiebreaker further
> >
> > since the tie breaker is owned by the allocator now.
> >
> > BUG=webrtc:42224914
> >
> > Change-Id: I76bd5ae714fb2a6df38e014991242f390ae87e6a
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351180
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
> > Commit-Queue: Philipp Hancke <phancke@meta.com>
> > Cr-Commit-Position: refs/heads/main@{#42371}
>
> Bug: webrtc:42224914
> Change-Id: Ic9d5ee229738575910bd33dee278f6049be81205
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351680
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Auto-Submit: Björn Terelius <terelius@webrtc.org>
> Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42374}

Bug: webrtc:42224914
Change-Id: Iea2678ef21aba990bc8b95e5275157c0dba5fa77
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351661
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42378}
2024-05-24 20:19:35 +00:00
Björn Terelius
dbbb6cabc3 Revert "p2p: reduce visibility of ICE tiebreaker further"
This reverts commit b5df2ba10db3cd04febcde8727e782457708f2fa.

Reason for revert: Breaks downstream

Original change's description:
> p2p: reduce visibility of ICE tiebreaker further
>
> since the tie breaker is owned by the allocator now.
>
> BUG=webrtc:42224914
>
> Change-Id: I76bd5ae714fb2a6df38e014991242f390ae87e6a
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351180
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@meta.com>
> Cr-Commit-Position: refs/heads/main@{#42371}

Bug: webrtc:42224914
Change-Id: Ic9d5ee229738575910bd33dee278f6049be81205
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351680
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Björn Terelius <terelius@webrtc.org>
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42374}
2024-05-24 12:47:50 +00:00
Florent Castelli
99c519b3fd Mass removal of absl_deps in all BUILD.gn files
Bug: webrtc:341803749
Change-Id: Id73844ba8d63b9f2f2c9391d8d8116ad0864c36d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351540
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42372}
2024-05-23 15:09:46 +00:00
Philipp Hancke
b5df2ba10d p2p: reduce visibility of ICE tiebreaker further
since the tie breaker is owned by the allocator now.

BUG=webrtc:42224914

Change-Id: I76bd5ae714fb2a6df38e014991242f390ae87e6a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351180
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42371}
2024-05-23 15:08:28 +00:00
Philipp Hancke
c7fd5afd45 Split SSL adapters from main ssl build target 1/2
with an intermediate step since Chromium depends on the openssl_stream_adapter.h which will move to the new target.

BUG=webrtc:339300437

Change-Id: Iea163e0a6e3923ce8a741a2e11e9a2a1e3f3e7a3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350887
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42362}
2024-05-21 19:11:53 +00:00
Philipp Hancke
bad99ab253 RTCP: implement reduced size RTCP for audio
reduced-size RTCP, i.e. not prefixing RTCP packets with either a sender report or receiver report has been implemented for a long time but only for video.

This CL adds it for audio as well. This reduces the size of audio NACKs (16 bytes, typically one NACK per packet) sent by not prefixing it with a receiver report (32 bytes).
Other packets are not affected as e.g. transport-cc feedback does not add a RR even though that is technically required.

The effect on NACK can be tested by running Chromium with
  --disable-webrtc-encryption --force-fieldtrials=WebRTC-FakeNetworkReceiveConfig/loss_percent:5/
against this fiddle negotiating audio nack:
https://jsfiddle.net/fippo/8ubtLnfx/1/

BUG=webrtc:340041654

Change-Id: I06fb94742ff1b6f9a464c404bfc53913f23498d8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350269
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42330}
2024-05-16 18:24:10 +00:00
Per K
5566b91356 Reland "Replace usage of link_capacity_kbps with DataRate link_capacity"
This reverts commit ff2dd50fd88e07affc4b070ce535935409f6673a.

Reason for revert: Temporary fix for downstream breakage in patch 2

Original change's description:
> Revert "Replace usage of link_capacity_kbps with DataRate link_capacity"
>
> This reverts commit 6186c0226e41dabbfc5cc8527e6b350b62f39f02.
>
> Reason for revert: Breaks downstream project.
>
> Original change's description:
> > Replace usage of link_capacity_kbps with DataRate link_capacity
> >
> > Replace usage of BuiltInNetworkBehaviorConfig.link_capacity_kbps in tests with  DataRate link_capacity.
> >
> > Bug: webrtc:14525
> > Change-Id: Id1c1b8d20eb2be5e9d1461704bb7c37c61c491f0
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350300
> > Reviewed-by: Erik Språng <sprang@webrtc.org>
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Commit-Queue: Per Kjellander <perkj@webrtc.org>
> > Reviewed-by: Björn Terelius <terelius@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#42306}
>
> Bug: webrtc:14525
> Change-Id: I09ede3e89d065061cb4133bff96dbf242ff70832
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350621
> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42309}

Bug: webrtc:14525
Change-Id: Ie35cd97a158d008a80ed007b27d2c6b1a9affff9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350541
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42320}
2024-05-16 10:39:10 +00:00
Harald Alvestrand
c6c6971d97 Break out parsing of FMTP lines so that others can use it
Intended use is to convert between different representations of "codec".

Bug: webrtc:42226302
Change-Id: If6d985ad17c2ff6018c77c7858e602b9eefa9297
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350562
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42319}
2024-05-16 10:22:23 +00:00
Mirko Bonadei
ff2dd50fd8 Revert "Replace usage of link_capacity_kbps with DataRate link_capacity"
This reverts commit 6186c0226e41dabbfc5cc8527e6b350b62f39f02.

Reason for revert: Breaks downstream project.

Original change's description:
> Replace usage of link_capacity_kbps with DataRate link_capacity
>
> Replace usage of BuiltInNetworkBehaviorConfig.link_capacity_kbps in tests with  DataRate link_capacity.
>
> Bug: webrtc:14525
> Change-Id: Id1c1b8d20eb2be5e9d1461704bb7c37c61c491f0
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350300
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Per Kjellander <perkj@webrtc.org>
> Reviewed-by: Björn Terelius <terelius@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42306}

Bug: webrtc:14525
Change-Id: I09ede3e89d065061cb4133bff96dbf242ff70832
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350621
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42309}
2024-05-15 11:09:33 +00:00
Per K
6186c0226e Replace usage of link_capacity_kbps with DataRate link_capacity
Replace usage of BuiltInNetworkBehaviorConfig.link_capacity_kbps in tests with  DataRate link_capacity.

Bug: webrtc:14525
Change-Id: Id1c1b8d20eb2be5e9d1461704bb7c37c61c491f0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350300
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42306}
2024-05-15 08:44:20 +00:00
Philipp Hancke
57dbb1e53e Reland "Split digest methods from ssl target into digest target"
This is a reland of commit 47bfe39ecfe45b2f94c616ace97949003d9e87b4

Original change's description:
> Split digest methods from ssl target into digest target
>
> in an attempt to break up the monolithic ssl target.
>
> BUG=None
>
> Change-Id: I38f5b3e2828742d5d918460db1af0a5797d6a5c2
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349764
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@meta.com>
> Cr-Commit-Position: refs/heads/main@{#42249}

Bug: webrtc:339300437
Change-Id: I31bb79bbc6cc55a2634176f95ec67de195974e1b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350260
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42304}
2024-05-15 06:40:16 +00:00
Harald Alvestrand
f42d2b9ab5 Include-what-you-use pc/media_session
Bug: webrtc:42226242
Change-Id: I25743717d1f0e7a0305589139bd386353b4e5054
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350122
Auto-Submit: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42262}
2024-05-08 15:07:53 +00:00
Sergey Sukhanov
26a082ce36 Introduce a mode that lets NetworkEmulationManager ignore DTLS handshake sizes.
Bug: b/169531206
Change-Id: I02c19385ff7078944f7509ecc07358b4315f7b08
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350181
Commit-Queue: Sergey Sukhanov <sergeysu@webrtc.org>
Reviewed-by: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42261}
2024-05-08 13:20:20 +00:00
Mirko Bonadei
fc57037462 Revert "Split digest methods from ssl target into digest target"
This reverts commit 47bfe39ecfe45b2f94c616ace97949003d9e87b4.

Reason for revert: Breaks downstream project.

Original change's description:
> Split digest methods from ssl target into digest target
>
> in an attempt to break up the monolithic ssl target.
>
> BUG=None
>
> Change-Id: I38f5b3e2828742d5d918460db1af0a5797d6a5c2
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349764
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@meta.com>
> Cr-Commit-Position: refs/heads/main@{#42249}

Bug: None
Change-Id: Ice6f901cd8c2aecf4cf44d3728ec76568b19a7ca
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350180
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42255}
2024-05-08 06:42:32 +00:00
Philipp Hancke
47bfe39ecf Split digest methods from ssl target into digest target
in an attempt to break up the monolithic ssl target.

BUG=None

Change-Id: I38f5b3e2828742d5d918460db1af0a5797d6a5c2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349764
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42249}
2024-05-07 16:52:48 +00:00
Harald Alvestrand
141f4c153f Provide mechanism to make codec decisions per-transceiver
This provides a way to tell the SDP generator to use a specific list
of codecs, rather than trying to compute what list to send.

Preparatory to making codec decisions per-transceiver.

Bug: webrtc:42226302
Change-Id: I1b7d4e55ed7a0546394b74820b4e51434ef86ad9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349620
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tony Herre <herre@google.com>
Cr-Commit-Position: refs/heads/main@{#42247}
2024-05-07 14:32:18 +00:00
Philipp Hancke
3f10f65713 sdp: answer with spec msid when msid support is unknown
this removes the reliance on the no-longer-spec a=msid-semantic lines
in case the offer did not signal any msid. Endpoints not supporting
msid should silently ignore the resulting a=msid: line. This also changes behavior such that a "legacy" offer without msid-semantic
line will be responded to with both msid-semantic and msid for any tracks present.
Plan-B ssrc-specific msid attributes are not signalled in that case.

See https://datatracker.ietf.org/doc/html/rfc8829#section-5.3.1
which includes it in the answer depending on the transceiver direction
but not if and only if the offer signalled a msid.

This also avoids recreating the stream and changing the SSRC
which could happen if the answer object was serialized to SDP
(which most unit tests do not do)

BUG=chromium:328522463

Change-Id: Id2f890b7756721d7c50460359950826d392483ae
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/346741
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42237}
2024-05-06 19:20:48 +00:00
Philipp Hancke
89679bfd02 sdp: document existing mid backfill cornercases
mids get backfilled starting with 0 which means they are always
present in the answer (even though JSEP says otherwise) and may
even be backfilled in a manner compatible with their usage in a
BUNDLE group. Those cases are ok-ish but should be documented by
tests.

BUG=None

Change-Id: I69f0475c279da5022109a56f0006169dbc2de147
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349380
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42234}
2024-05-06 16:38:37 +00:00
Qingsi Wang
81eca8306b Revert "Remove unused WebRTC-Bwe-InjectedCongestionController"
This reverts commit c95cb6bd3e221cd54d3060654abf91abc9a2fac5.

Reason for revert: Breaks downstream project

Original change's description:
> Remove unused WebRTC-Bwe-InjectedCongestionController
>
> Instead, PeerConnectionFactoryDependencies.network_controller_factory is
> used if it exists.
>
> Bug: webrtc:8415
> Change-Id: I37d5cc7325072bf1d87993e53949f1b97c277f55
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347860
> Reviewed-by: Björn Terelius <terelius@webrtc.org>
> Commit-Queue: Per Kjellander <perkj@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42120}

Bug: webrtc:8415
Change-Id: I3800ce1a65e7ef40313d67308a24d5daa6d3a028
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349560
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Qingsi Wang <qingsi@google.com>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42213}
2024-05-02 18:32:19 +00:00
Harald Alvestrand
d78e30e00b Deprecate cricket::VideoCodec and cricket::AudioCodec
These are aliases for cricket::Codec.
Also remove internal usage

Bug: b/42225532
Change-Id: I220b95260dc942368cb6280432a058159eec8700
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349321
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42194}
2024-04-29 16:24:51 +00:00
Per K
569849e885 Move call/simulated_network to test/network
Old target and call/simulated.h exist but refer to new target in test/network.

Bug: webrtc:14525
Change-Id: Ida04cef17913f2f829d7e925ae454dc40d5e8240
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349264
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Owners-Override: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42191}
2024-04-29 09:55:06 +00:00
Harald Alvestrand
b0e7057e1b Introduce the TransformerHost interface
This is the first step in implementing custom codecs in SDP.

Bug: none
Change-Id: I7789478208a769eaefd58b410ae6f488c604594d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/348662
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tony Herre <herre@google.com>
Cr-Commit-Position: refs/heads/main@{#42171}
2024-04-25 07:54:28 +00:00
Harald Alvestrand
1a3120f3fd Move some integration test functions to the .cc file
The integration_test_helpers.h file was too long and had too many
big functions inline.

This CL takes some of the largest and puts them in the .cc file.

Bug: None
Change-Id: Ibaaf9675ca8b5efa29878b4883b21f14104451a7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349020
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42169}
2024-04-25 07:25:42 +00:00
Evan Shrubsole
db50b03553 Add perfetto build config
This adds Perfetto support to WebRTC with a GN flag rtc_use_perfetto.
The configuration of perfetto depends on whether or not webrtc is
build within Chrome or not. When in Chrome, WebRTC will depend on
//third_party/perfetto:libperfetto. When building standalone, specific includes required for Perfetto are exposed with the library webrtc_libperfetto.

The perfetto trace API is exposed with a header export in
trace_event.h which is used instead of the legacy API.

The addition of Perfetto means there are 4 compilation modes for
tracing in WebRTC,
1. No tracing implementation.
2. Legacy tracing (AddTraceEvent/GetCategoryEnabled).
3.a. Perfetto statically linked (webrtc_libperfetto).
3.b. Perfetto in Chrome (Chrome's libperfetto).

This CL removes the tracing expectations from
rtc_stats_integrationtest.cc because those directly used the old API.

Integration into Chrome is a follow up CL which depends on
https://chromium-review.googlesource.com/c/chromium/src/+/5471691.

Tested: Ran Chrome with Perfetto and traces appear. WebRTC Unit test tracing working: https://ui.perfetto.dev/#!?s=04ea2613ea36b814394639a1ec4b60be5b5097527f1a485995ecc13469885468
Bug: webrtc:15917
Change-Id: I537d79dc247c2b759689910c621087286a4d8fdc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347880
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Evan Shrubsole <eshr@google.com>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Mikhail Khokhlov <khokhlov@google.com>
Cr-Commit-Position: refs/heads/main@{#42166}
2024-04-24 20:53:23 +00:00
Philipp Hancke
c97d434ec4 sdp: cleanup WebRTC-PreventSsrcGroupsWithUnexpectedSize killswitch
the rollout has happened a while ago with no issues requiring the use
of the killswitch

BUG=chromium:40066610

Change-Id: I2c8148976a1da219ebbfbe6908224b6384348194
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/348823
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Emil Lundmark <lndmrk@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42164}
2024-04-24 17:40:19 +00:00
Evan Shrubsole
5bfcc873d9 Add event scope to all TRACE_EVENT_INSTANTs
These are required by the Perfetto API and the missing argument prevents
the use of Perfetto.

Bug: webrtc:15917
Change-Id: Ie40c0344dc9d8cd40f7c751b133d150b975a33c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347702
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/main@{#42147}
2024-04-23 09:56:33 +00:00
Philipp Hancke
622ca1a011 stats: fix remote-outbound-rtp id for video
which was using the audio type to generate the id. Safe change
since the id is supposed to be random.

BUG=webrtc:12529

Change-Id: I9909c6d320f6f9239f0466599eba1f0eacf00adf
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347683
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42142}
2024-04-22 18:22:02 +00:00
Harald Alvestrand
6f170a05dc Convert P2PtransportChannel.GatheringState to CallbackList
Earlier attempts have shown that this signal is multiply listened to.

Bug: webrtc:11943
Change-Id: I382df9a554925d214872d788c5d7a36f2f7c7b7e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/348661
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42139}
2024-04-22 12:29:56 +00:00
Florent Castelli
f4673f97ed Move webrtc::AudioDeviceModule include to api/ folder
Bug: webrtc:15874
Change-Id: I5bdb19d5e710838b41e6ca283d406c9f1f21286b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/348060
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42137}
2024-04-22 08:56:31 +00:00
Harald Alvestrand
c869266b10 Revert "Convert P2PTransportChannel Candidate Pair Change to CallbackList"
This reverts commit dc43cb24bd8ee85d6a8224c5928ceaf90de729b6.

Reason for revert: Converted the wrong signal, should have been GatheringState.

Original change's description:
> Convert P2PTransportChannel Candidate Pair Change to CallbackList
>
> Earlier attempts have shown that this signal is multiply listened to.
>
> Bug: webrtc:11943
> Change-Id: If9130a7f4c70714b5afda5aca0469b66c8e2612f
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347981
> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42124}

Bug: webrtc:11943
Change-Id: I73d5d815ced8d7aef4df765c9cf54d7637c6769d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/348220
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#42129}
2024-04-20 10:36:46 +00:00
Florent Castelli
0afde7614d Move webrtc::AudioProcessing include to api/ folder
Bug: webrtc:15874
Change-Id: Ie8a6e031c0f0505cfe238f7d252c47e9c34408d4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347983
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42128}
2024-04-20 07:02:50 +00:00
Harald Alvestrand
dc43cb24bd Convert P2PTransportChannel Candidate Pair Change to CallbackList
Earlier attempts have shown that this signal is multiply listened to.

Bug: webrtc:11943
Change-Id: If9130a7f4c70714b5afda5aca0469b66c8e2612f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347981
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42124}
2024-04-19 20:30:01 +00:00
Per K
c95cb6bd3e Remove unused WebRTC-Bwe-InjectedCongestionController
Instead, PeerConnectionFactoryDependencies.network_controller_factory is
used if it exists.

Bug: webrtc:8415
Change-Id: I37d5cc7325072bf1d87993e53949f1b97c277f55
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347860
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42120}
2024-04-19 08:05:25 +00:00
Philipp Hancke
8f16289e10 stats: implement remote-outbound-rtp for video
following the audio changes. Note that RTT-related fields require
DLRR and are not implemented yet.

BUG=webrtc:12529

Change-Id: I3f9449fbe876a1b282a32f2bcebe1cf3e10989bf
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/346580
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#42069}
2024-04-15 15:10:54 +00:00
Danil Chapovalov
8d079bea2a Keep Environment instead of test field trials in FakeCall test object
To pass field trials to EncoderStreamFactory in FakeVideoSendStream and thus reduce dependency on the global field trial.

Bug: webrtc:10335
Change-Id: Iad32881c2d9158fe1d77f1b71f8d606374ea111e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/346340
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42023}
2024-04-09 11:53:18 +00:00
Evan Shrubsole
fe24f58c73 Report proper VP9 scalability mode with layer activation.
This changes the libvpx VP9 encoder to generate the scalability mode based on the current encoding parameters when using layer activation.

Tested: Ran with L3T3_KEY reduced to L2T3_KEY and L1T3 due to bandwidth or layer activation. Added unit tests.
Bug: webrtc:15892
Change-Id: Iaedca4ea5fc3a692996666ceaf0d6aa03fb058a1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/344760
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42007}
2024-04-05 14:02:59 +00:00
Victor Boivie
6f68254ac3 pc: Provide DtlsTransport to SctpTransport constr
This code looked a bit weird before this CL - probably because of old
refactorings.

In JsepTransport constructor, there is a DCHECK assuring that the RTP
DTLS transport is always present, so it can be passed directly to the
SctpTransport constructor, which avoids having the SetDtlsTransport
method in it.

Also, in the SctpTransport constructor, there was code that would set
the SCTP transport state to `kConnecting` if the DTLS transport was
present, but that was dead code, as it was always `nullptr` inside the
constructor before this CL. With this CL, it's always present, and the
SCTP Transport's state will initially always be `kConnecting` now. Which
is a step to deprecating the `kNew` state that doesn't exist in
https://w3c.github.io/webrtc-pc/#dom-rtcsctptransportstate.

One test case was modified, as it didn't test the reality. The test
created a SctpTransport, registered an observer, and added the DTLS
transport, and expected to receive a "statechange" from `kNew` (which is
not a state that exists in the spec) to `kConnecting`. If the test had
tested the opposite ordering - adding the DTLS transport first, and then
adding an observer, it wouldn't have experienced this. And since in
reality (with the implementation of JsepTransport before and
after this CL), it always adds the DTLS transport before any observer is
registered. So it wouldn't ever be fired, outside of tests.

Bug: webrtc:15897
Change-Id: I6ac24e0a331b686eb400fcf388ece50f2ad46a32
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/345420
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41987}
2024-04-03 10:13:33 +00:00
Florent Castelli
15e46aa358 pc: Increase timeout for EndToEndCallWithSctpDataChannelFullBuffer
The timeout was not long enough in debug mode on slower machines.

Bug: chromium:40072842
Change-Id: Id82399cd7211abf5dd2e03ffa2ee4bd49f8c492f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/344680
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Victor Boivie <boivie@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41971}
2024-03-27 11:09:05 +00:00
Florent Castelli
5928e35abf pc: Close the data channel association after sending messages in closing state
After we're done sending all the messages, if the channel was in closing
state, then we start closing the association at the SCTP level, which
allows transitioning to the closed state.

Bug: chromium:40072842
Change-Id: I81b26b4137593b8feeb4bd9a2563cdfd67e1049e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/344421
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Victor Boivie <boivie@webrtc.org>
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41962}
2024-03-25 18:36:09 +00:00
Victor Boivie
2c1cfd047f pc: Remove additional buffering in SctpDataChannel
This CL removes the send buffers (but not the receive buffer) from
SctpDataChannel and increases the send buffer in DcSctpSocket instead.

The reasons are:
 1) Simplify the code. This additional buffering was strictly needed
    before we migrated away from usrsctp, as that send buffer was very
    limited in size (by design). But with the migration to dcSCTP, it's
    no longer needed, so it just adds complexity.
 2) Make `RTCDataChannel::bufferedAmount` correct. Before this CL, it
    represented just the data buffered in SctpDataChannel, and not the
    data accepted by the SCTP socket, but not yet put on the wire. This
    makes it hard for clients to know when a message has ever been sent.
 3) Better handle draining data on data channel close. While this is not
    implemented in dcSCTP, having a single buffer makes this easier to
    add.

While most of this CL is straightforward, the handling of bufferedAmount
in the signaling thread (in RTCDataChannel in Blink), is a bit special.
The number returned by `RTCDataChannel::bufferedAmount` is not what the
true value is inside the SCTP socket, but an eventual consistent view
of that value. When a message is sent, the value is incremented and:
  - Before this change: When a message was put on the SCTP socket, the
    view's value was decremented. Which made the view reflect what was
    buffered outside the SCTP socket, and that buffering is now gone.
  - After this change: SctpDataChannel will track what RTCDataChannel
    will think it is, and provide updates to that number as we are
    notified that it's reduced - by setting a "low threshold" callback
    trigger.

A bonus with the new behavior is that it will be eventually consistent
and auto-heal also in error conditions - when messages are dropped due
to errors (bad input, bad state, etc). Previously, the bufferedAmount
value could drift away from the correct value on errors.

Note that a big chunk of unit tests were removed with this CL, as those
tested how the buffering behaved. Now, there is no buffering, so the
removed test cases represent a simpler interface.

This CL has been extensively tested with data channel benchmarks that
use the bufferedAmount thresholds (in Javascript).

Bug: chromium:40072842
Change-Id: I1a6a4af6b6e1116832f5028f989ce9f44683d229
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/343361
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41945}
2024-03-22 09:25:11 +00:00
Victor Boivie
cdecc4e6df Expose bufferedAmountLowThreshold
This code was extracted to make the next following CL easier to review.

This CL simply exposes the getters, setters and callbacks to set the
buffered amount low threshold on a specific SCTP stream. It will be
used in a follow-up CL, but is just boilerplate.

Bug: chromium:40072842
Change-Id: Iccd72208b369ddc252cc5886f6446b9c2ceeb0b1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/343360
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41943}
2024-03-21 19:59:39 +00:00
Jeremy Leconte
d7d5c0c1db Disable InjectDependencyDescriptor on Windows.
Change-Id: I6dd715063cc5b75b378e35b85f88974936229150
Bug: webrtc:15876
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/343341
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Jeremy Leconte <jleconte@google.com>
Cr-Commit-Position: refs/heads/main@{#41928}
2024-03-19 10:25:18 +00:00
Evan Shrubsole
a06e7eeec0 Replace proxy ScopedEvent with TRACE_EVENT
TRACE_EVENT is already scoped!



#rtc_fixit

Tested: Compiled the patch in Chromium and confirmed the Proxy events are still present. I can send the resulting trace to reviewers if desired.
Bug: webrtc:15867
Change-Id: I5717a85c0ee25e8e20123afa08064c9b6666ba96
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342920
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/main@{#41916}
2024-03-18 09:57:36 +00:00