PSA: WebRTC M85 Release Notes

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Anatoli Davidson

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Jul 17, 2020, 3:39:44 AM7/17/20
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WebRTC M85 Release Notes


WebRTC M85 branch (cut at r31567)

Summary


WebRTC M85, currently available in Chrome's beta channel, contains 3 new features and over 25 bug fixes, enhancements and stability/performance improvements. As with previous releases, we encourage all developers to run versions of Chrome on the Canary, Dev, and Beta channels frequently and quickly report any issues found. Please take a look at this page, for some pointers on how to file a good bug report. The help we have received has been invaluable! 


The Chrome release schedule can be found here.

Deprecations


Issue

Description

Component

11637

Remove RTP frame-marking extension

Network>RTP

11610

The receive_crit_ lock can be removed from Call

Internals

11632

Remove length from SingleProcessEncodedImageDataInjector::ExtractionInfo, use SpatialLayerFrameSize instead

Video

11664

Remove Opus packet loss rate optimization

Audio

Features and Bugfixes


Type

Issue

Description

Component

Feature

11631

Add support for multiple peers in DefaultVideoQualityAnalyzer

Internals

Feature

11463

Connection::Reset()

Network>ICE

Feature

11627

Add HEVC codec name to media constants

Video

Bug

11704

iSAC encoder: Target bitrate can only be set at construction time

Audio

Bug

1072401

TURN server URL can be used for TCP portscanning

Blink>WebRTC>PeerConnection

Bug

1030631

DataChannel doesn't fire error event on close-with-error

Blink>WebRTC>PeerConnection

Bug

11654

VP9 SVC may get stuck sending low resolution

BWE, Video

Bug

11628

DataChannel.close() will not send close signal if no data has been sent on the connection

DataChannel

Bug

11555

VP9 444 decoding broken on Windows with hardware acceleration enabled.

HardwareCodec, Video

Bug

11648

Mutex: Switch Mac mutex over from fairshare to default policy.

Internals

Bug

11600

Reduce memory consumed by RateStatistics

Internals

Bug

11572

Some rtc::Thread implementations or instances not registered as the current TaskQueue

Internals

Bug

11598

A process thread instances is allocated per-peerconnection, but could be shared.

Internals

Bug

11698

h264 stap-a-to-annex-b loop over-read

Internals

Bug

11694

Disable sctp asconf and auth extensions

Network

Bug

11597

don’t resolve dns hostnames in ice candidates when iceTransportPolicy is set to relay

Network>ICE

Bug

11617

Add trace of enqueued and sent RTP packets

Network>RTP

Bug

11691

Add support for two-byte RTP header extensions to rtp_util.cc

Network>RTP

Bug

8787

Stats: dataChannelIdentifier misspelled as "datachannelid"

Stats

Bug

9547

getstats results for simulcast are wrong and don't split up per ssrc

Stats, Video

Bug

11553

[ResourceAdaptation] Adapt up should require all limited resources to signal underuse before going up.

Video

Bug

11525

[ResourceAdaptation] Define Resource interfaces for external implementation

Video

Bug

11525

[ResourceAdaptation] Define Resource interfaces for external implementation

Video

Bug

11618

[Adaptation] Move UsageState() to ResourceListener callback and Processor

Video

Bug

11616

Add logging to improve ability to debug adaptation logic

Video

Bug

11575

Software fallback should trigger on too many errors

Video

Bug

11652

When SVC vp9 is used with non-standard resolution and adaptation down happens, video is not working

Video




Philipp Hancke

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Sep 2, 2020, 12:37:29 PM9/2/20
to discuss...@googlegroups.com
also note that Chrome M85 comes with a boringssl that is a bit stricter about what certificates it accepts for DTLS. See
(among others) for more information.
This is easy to observe in wireshark.

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