Commit graph

14 commits

Author SHA1 Message Date
Danil Chapovalov
8743db9865 Cleanup congestion controller min bitrate
Replace helper functions with the constant

Remove option to set min bitrate in RemoteBitrateEstimator as unused:
ReceivedSideCongestionController is the only user of the
RemoteBitrateEstimator interface, and it always sets the same value
right after construction that RemoteBitreateEstimators already use.

Bug: None
Change-Id: If179fdd72b1ded6ad1fd0a6dfffc97b302153322
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269383
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37613}
2022-07-25 17:31:28 +00:00
Diep Bui
5edefa87f7 Update loss based bwe 2 to handle low bandwidth networks and no delay signal.
1. Add loss threshold for high bandwidth preference. If the average loss ratio is less than the threshold, then the model prefers higher bandwidth candidates. Otherwise, it prefers lower bandwidth candidates. Before, it always prefers higher bandwidth candidate. The default value is 0.99, means it always prefers high bandwidth candidates.

2. Only increase the estimate if the inherent loss (random loss) is equal to/greater than the average loss. If the inherent loss is less than the average loss, then it is oversending, thus should not increase the estimate.

Bug: webrtc:12707
Change-Id: I37eb536679ca29e017a4a47703b417efd4d103ca
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269101
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37608}
2022-07-25 10:45:47 +00:00
Diep Bui
d97af7b1b9 Clean loss based bwe 2.
This is for cleaning loss based bwe v2 implementation according to some comments from https://webrtc-review.googlesource.com/c/src/+/261240.

Bug: webrtc:12707
Change-Id: I2cb278f136cddcd0eeb2c5e4c319a9cc6aab94a0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262251
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36875}
2022-05-13 10:07:19 +00:00
Diep Bui
f783b938fa Delay increasing estimate to the delay based estimate after loss happens.
The change bounds the estimate increment by MaxIncreaseFactor in DelayedIncreaseWindow after seeing loss. MaxIncreaseFactor is set to 1000 to disable the change by default.

Improve trendline integration: always allow to decrease the estimate, and only allow to increase the estimate if overusing and underusing are not in the state window.

Other improvement: bound candidates by delay based estimate, instance upper bound, and bandwidth limit in the current window.

Clean: remove the flag BackoffWhenOverusing since it has negative impacts when experimenting.

Bug: webrtc:12707
Change-Id: Ia4c1e58d692071967e8807a8b9d64b8ae4caf837
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261240
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36847}
2022-05-11 07:23:13 +00:00
Diep Bui
952dc0ce84 Fix division by 0 in loss_based_bwe_v2.
Bug: webrtc:12707
Change-Id: I16a643235aa2e51f0a062734482000562c8f6b4d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/257080
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36374}
2022-03-29 17:34:55 +00:00
Jonas Oreland
e62c2f2c77 WebRTC-DeprecateGlobalFieldTrialString/Enabled/ - part 12/inf
rename WebRtcKeyValueConfig to FieldTrialsView

Bug: webrtc:10335
Change-Id: If725bd498c4c3daf144bee638230fa089fdde833
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256965
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36365}
2022-03-29 10:14:00 +00:00
Diep Bui
a2219e22d2 Use acked bitrate only when network is overusing.
Bug: webrtc:12707
Change-Id: I9a263ec60f07cfd03eed0374c730c87e20014d65
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256113
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36303}
2022-03-23 13:35:32 +00:00
Diep Bui
3c60f2d31c Change the default value of bandwidth_backoff_factor to 1.0.
The default backoff behavior of loss based 2.0 should remain the same.

Bug: webrtc:12707
Change-Id: Ica7b8da26c11317a6cb7cd9272c07d03d066f30b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256005
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36258}
2022-03-18 15:18:38 +00:00
Diep Bui
4ceea65848 Integrate trendline estimator into loss based bwe v2.
Bug: webrtc:12707
Change-Id: I510d3799c14599344d1714178e42b29e7c0c06d7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/254380
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36236}
2022-03-17 13:07:44 +00:00
Fanny Linderborg
89b750f6d4 Ensure LossBasedBweV2 can generate candidates if it is enabled
To be able to generate candidates the configuration must support at
least one of the following:

* enable acknowledged bitrate as a candidate,
* enable delay based bwe as a candidate, or
* enabled a candidate factor other than 1.0.

If none of the above is supported then the configuration will be marked
as invalid and thus the `LossBasedBweV2` will be disabled.

Bug: webrtc:12707
Change-Id: I836ee59a396497f577b34fe0650ffc79f6cadc31
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/235210
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Ying Wang <yinwa@webrtc.org>
Commit-Queue: Fanny Linderborg <linderborg@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35239}
2021-10-19 12:31:16 +00:00
Christoffer Rodbro
c339142981 LossBweV2: Base ramp up speed on time passed since last backoff.
By initialization, time since backoff is unlimited at startup.

Bug: none
Change-Id: I9693cd09b7201606374a8bf9a0a03e6ee83191d3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/232611
Commit-Queue: Fanny Linderborg <linderborg@webrtc.org>
Reviewed-by: Fanny Linderborg <linderborg@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35076}
2021-09-23 09:03:59 +00:00
Christoffer Rodbro
5068820dd0 Rename "TcpFairness" in LossBasedBweV2 to "InstantUpperBound"
The new name more accurately reflects the intent of the actual implementation.


Bug: none
Change-Id: I3d2aeb561104165f9f9879854a4a210730e02ff5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/232130
Commit-Queue: Christoffer Rodbro <crodbro@webrtc.org>
Reviewed-by: Fanny Linderborg <linderborg@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35020}
2021-09-17 07:28:41 +00:00
Ying Wang
1fde34f703 Tweaks for LossBasedBweV2.
Caches the TCP fairness limit to avoid redundant calculation. Adds option to append the delay based estimate as a candidate. Makes the appending of acknowledged bitrate as a candidate optional. Adds a log-bandwidth bias term.
(submit on behalf of crodbro)

Bug: webrtc:12707
Change-Id: Ic4b0f58e6f0bc3b117fe78a2321a07db65afd9dd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/228163
Commit-Queue: Ying Wang <yinwa@webrtc.org>
Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34687}
2021-08-09 16:44:02 +00:00
Fanny Linderborg
f137b75a4d Add a bandwidth estimator based on loss statistics and maximum likelihood modelling.
Bug: webrtc:12707
Change-Id: Ia221d0b7aee6edb5ae7b0f3b0ad08ac610b3340e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/224300
Commit-Queue: Christoffer Rodbro <crodbro@webrtc.org>
Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34626}
2021-08-02 11:26:00 +00:00