120 Commits

Author SHA1 Message Date
Henrik Boström
62057627ef [Adaptation] Rename and move resource adaptation module/processor stuff.
Rename:
- call/adaptation/resource_adaptation_module_interface.[h/cc] -->
  call/adaptation/resource_adaptation_processor_interface.[h/cc]
- call/adaptation/resource_adaptation_processor.[h/cc] -->
  call/adaptation/new_resource_adaptation_processor_poc.[h/cc]

Move + Rename:
- video/overuse_frame_detector_resource_adaptation_module.[h/cc] -->
  video/adaptation/resource_adaptation_processor.[h/cc]

Move:
- video/encode_usage_resource.[h/cc] --> video/adaptation/...
- video/overuse_frame_detector.[h/cc] --> video/adaptation/...
- video/quality_scaler_resource.[h/cc] --> video/adaptation/...

Unittests are also moved. In order to avoid a circular dependency,
VideoStreamEncoder::kDefaultLastFrameInfo[Width/Height] is moved and
renamed to kDefaultInputPixels[Width/Height] in
video/adaptation/resource_adaptation_processor.[h/cc].

Bug: webrtc:11222
Change-Id: Icf920e8a7362002b1c63c42b2d9e2e63c990b532
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/170117
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30754}
2020-03-11 09:30:16 +00:00
Henrik Boström
b0f2e0ced4 [Overuse] Make VideoStreamAdapter responsible for executing adaptation.
This CL moves GetAdaptUpTarget(), GetAdaptDownTarget() and
ApplyAdaptationTarget() - and related code - to the VideoStreamAdapter.

This includes pieces related to calculating how to adapt, including:
- DegradationPreference
- BalancedDegradationPreference
- AdaptationRequest and last_adaptation_request_
- CanAdaptUpResolution()

The VideoStreamAdapter's interface has changed: VideoSourceRestrictor
methods are now hidden in favor of methods exposing AdaptationTarget.

This CL also does some misc moves:
- GetEncoderBitrateLimits is moved and renamed to
  VideoEncoder::EncoderInfo::GetEncoderBitrateLimitsForResolution.
- EncoderSettings moved to a separate file.

// For api/video_codecs/video_encoder.[cc/h] changes, which is the
// moving of a function.
TBR=sprang@webrtc.org

Bug: webrtc:11393
Change-Id: Ie6bd8ef644ce927d7eca6ab90a0a7bcace682f3c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/169842
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30708}
2020-03-06 13:35:20 +00:00
Evan Shrubsole
aa6fbc156e Support injecting new Resources for overuse
* This replaces the video stream methods for forcing adaptation
with a mock resource that triggers overuse.
* Resources can now be injected to the Module using the AddResource
function.
* Resources now have tests for adding and removing callbacks.
* Quality/EncoderUse% resources are tracked in the Resource list of
the adaptation module.
* The adaptation module ties all resources to a reason to keep stats
working as expected.

BUG=webrtc:11377

Change-Id: I1f5902f7416dc41b4915c0072e6f0da2bb3bb2b7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168948
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30610}
2020-02-25 16:17:42 +00:00
Evan Shrubsole
e67c6bcd06 Remove unused fields and includes from VideoStreamEncoder
Bug: webrtc:11222
Change-Id: Iec496d0955c1a30c61da147f0407fd76534129b7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168184
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30496}
2020-02-11 13:58:33 +00:00
philipel
9b05803e19 Implement injectable EncoderSelectorInterface and wire it up in the VideoStreamEncoder.
The EncoderSelectorInterface is meant to replace the "WebRTC-NetworkCondition-EncoderSwitch" field trial, so the field trial will be ignored if an EncoderSelectorInterface object has been injected.

Bug: webrtc:11341
Change-Id: I5371fac9c9ad8e38223a81dd1e7bfefb2bb458cb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168193
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30490}
2020-02-10 12:12:47 +00:00
Ying Wang
9b881abea9 Enable congestion window pushback to reduce bitrate by only drop video frames.
With current congestion window pushback, when congestion window is filling up, it will reduce bitrate directly and encoder may reduce encode quality, resolution, or framerate to adapt to the allocated bitrate, the behavior is depending on the degradation preference.
This change enable congestion window to only drop frames to reduce bitrate (when needed) instead of reduce general bitrate allocation.

Bug: webrtc:11334
Change-Id: I9cf5c20a0858c4d07d006942abe72aa5e1f7cb38
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168059
Commit-Queue: Ying Wang <yinwa@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30483}
2020-02-07 14:14:47 +00:00
Henrik Boström
7875c99e82 [Overuse] Add EncodeUsageResource and QualityScalerResource.
This refactors the usage of OveruseFrameDetector in
OveruseFrameDetectorResourceAdaptationModule into an inner class of the
module, making the interaction between the detector and the module the
responsibility of this helper class instead.

Similarly, QualityScaler usage is moved into QualityScalerResource.

This takes us one step closer to separate the act of detecting
overuse/underuse of a resource and the logic of what to do when
overuse/underuse happens.

Follow-up CLs should build on this in order to materialize the concept
of having resources, streams and a central decision-maker deciding how
to reconfigure the streams based on resource usage state.

Bug: webrtc:11222
Change-Id: I99a08a42218a871db8f477f31447a6379433ad05
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168057
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30468}
2020-02-06 11:29:02 +00:00
Evan Shrubsole
e331a122aa Move quality rampup experiment to overuse module
Bug: webrtc:11222
Change-Id: I8d0860bfe8bdfe0a051f5a6165cdcfa0cc25cfb5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168181
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30465}
2020-02-06 08:38:39 +00:00
Evan Shrubsole
7c3a1fc082 Move initial quality experiment to adaptation module
Bug: webrtc:11222
Change-Id: Iaa33bd6369a11f91e677b015eb2db412d0fbff23
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168053
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30456}
2020-02-05 10:10:22 +00:00
Evan Shrubsole
c81798b0c4 Configure QP scaler in adaptation module
Bug: webrtc:11222
Change-Id: Ia50ba3d024d0cbbaeddf8bf67ee652be602c5df9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168052
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30453}
2020-02-04 14:46:06 +00:00
Evan Shrubsole
f2be3eff26 Move initial frame drop to overuse module
It would be nice for this to stay in video stream encoder,
but this feature is mostly related to quality scaling. Perhaps
something easier to understand is possible in the future.

Bug: webrtc:11222
Change-Id: I71705f33ff94bbcf2fb9b5c94226c8e76dcba94c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168051
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30446}
2020-02-03 11:56:31 +00:00
Evan Shrubsole
cf0595234c Move quality scaler into adaptation module
This allows for further refactoring, eventually moving
all of quality scaler out of video stream encoder.

Bug: webrtc:11222
Change-Id: Id121608da56f57549a616ccc5f141bb598668b40
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/167728
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30417}
2020-01-30 09:05:19 +00:00
Henrik Boström
ad515a255b [Overuse] Move GetCpuOveruseOptions() to adaption module.
This removes the last remaining explicit reference from
OveruseFrameDetectorResourceAdaptationModule to
VideoStreamEncoder.

VideoStreamEncoder's call to SetEncoderSettings() inside
ReconfigureEncoder() is moved a few lines down - it was discovered that
during these lines the EncoderInfo config could get modified in
response to InitEncode() - so this fixes a potential bug.

Bug: webrtc:11222
Change-Id: I9746f28a4df8e631e297669c10636bf17b39acec
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/167363
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30381}
2020-01-27 13:51:40 +00:00
Evan Shrubsole
02d51f9fdc Remove unused field trial WebRTC-InitialFramedrop
Bug: webrtc:9176, webrtc:6086
Change-Id: Ie02800963f790f07b4c60ff01a04ecd6b5e1113d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/167181
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30361}
2020-01-23 13:42:03 +00:00
Henrik Boström
d4578ae962 [Overuse] Encoding pipeline as input signals in the abstract interface.
This defines the following methods:
- OnFrame(), replaces SetLastFramePixelCount().
- OnFrameDroppedDueToSize(), a rename of FrameDroppedDueToSize() to
  match the other methods.
- OnEncodeStarted(), a rename of the incorrectly named FrameCaptured().
- OnEncodeCompleted(), a rename of the poorly named FrameSent().

In order to get rid of SetLastFramePixelCount(), the "we don't know the
frame size" use case - which was previously implicitly avoided by
invoking SetLastFramePixelCount() with a made-up value for
last_frame_info_ - is now avoided using ".value_or()" in
LastInputFrameSizeOrDefault(). This does mean that a constant 144p
resolution value is referenced in two places, but the fact that this is
a magic value is at least made explicit. This may help future
improvements.

Bug: webrtc:11222
Change-Id: I3b28daa8c5ecf57c6537957d4759f15e24bb2234
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/166961
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30352}
2020-01-22 17:11:20 +00:00
Evan Shrubsole
2bc91e8c6a Avoid extra EncodedFrame copy in RunPostEncode
All uses of encoded_image are const, except for the copy for running on
the encoder_queue_.

Bug: None
Change-Id: I7fc8cb46f6afb42a2d27961d3d3ff8d9e63fe1b5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/166442
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30351}
2020-01-22 15:41:38 +00:00
Henrik Boström
ede69c0fbe [Overuse] Setting the target bitrate through the interface.
The poorly named SetEncoderStartBitrate() is renamed
SetEncoderTargetBitrate() and added to the abstract resource adaptation
module interface.

The so-called "start bitrate" was updated to match the target bitrate,
so this was only ever a "start bitrate" until we had any estimates. The
variable is renamed in VideoStreamEncoder as well, and usage of optional
types are introduced to avoid magical values in a few places in the
existing code.

Bug: webrtc:11222
Change-Id: Idde92f68f34616aa3c34ab77a791fdbe7ea7af26
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/166880
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30347}
2020-01-22 13:38:38 +00:00
Henrik Boström
07b17df771 Move DegradationPreference logic to the encoder queue.
This moves SetHasInputVideoAndDegradationPreference() to the encoder
queue. OveruseFrameDetectorResourceAdaptationModule is now entirely
single-threaded, including its inner class VideoSourceRestrictor.

VideoStreamEncoder now protects the module with RTC_GUARDED_BY. This
ensures it is safely used, even without a SequenceChecker inside of the
module. The module's |encoder_queue_| is removed.

The one task queue reference that is needed - passing down the current
task queue to StartCheckForOveruse() - is replaced by a TaskQueueBase*
(instead of rtc::TaskQueue*), enabling obtaining the current queue with
TaskQueueBase::Current(). (There is no rtc::TaskQueue::Current().)

Furthermore, the only uses of VideoSourceSinkController that isn't on
the encoder queue are documented, with a TODO saying if these are moved
the VideoSourceSinkController could also be made single-threaded.
However since this requires introducing a delay to
VideoStreamEncoder::SetSource() and VideoStreamEncoder::Stop(),
arguably a more risky change, if this is to be attempted that should be
in a separate CL.

Bug: webrtc:11222
Change-Id: I448ca5125708d5f66b95b0b180d6d24cc356dfa9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165783
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30263}
2020-01-15 11:58:04 +00:00
Henrik Boström
ce0ea49001 VideoStreamEncoder configuring source/sink with VideoSourceController.
This is part of the work for making VideoStreamEncoder responsible for
configuring its source/sink and limiting the responsibility of
OveruseFrameDetectorResourceAdaptationModule to only output relevant
VideoSourceRestrictions.

BEFORE THIS CL

Prior to this CL, OveruseFrameDetector was responsible for performing
AddOrUpdateSink() on the source, which it did using its nested class
VideoSourceProxy.

AddOrUpdateSink() could happen for both adaptation and non-adaptation
related reasons. For example:
- Adaptation related: AdaptUp() or AdaptDown() happens, causing updated
  VideoSourceRestrictions.
- Non-adaptation related: VideoStreamEncoder asks the module to
  reconfigure the source/sink for it, such as with
  SetMaxFramerateAndAlignment() or SetWantsRotationApplied().

AFTER THIS CL

AddOrUpdateSink() is performed by VideoSourceController, which is owned
by VideoStreamEncoder. Any reconfiguration has to go through the
VideoStreamEncoder. This means that:
- Non-adaptation related settings happen between VideoStreamEncoder and
  VideoSourceController directly (without going through the adaptation
  module).
- Adaptation related changes can be expressed in terms of
  VideoSourceRestrictions. OveruseFrameDetectorResourceAdaptationModule
  only has to output the restrictions and not know or care about other
  source/sink settings.

For now, VideoSourceController has to know about DegradationPreference.
In a future CL, the DegradationPreference logic should move back to
the adaptation module. The VideoSourceRestrictions are fully capable of
expressing all possible source/sink values without the "modifier" that
is the degradation preference.

Bug: webrtc:11222
Change-Id: I0f058c4700ca108e2d9f212e38b61f6f728aa419
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/162802
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30228}
2020-01-13 11:14:04 +00:00
Henrik Boström
d238200882 Introduce ResourceAdaptationModuleListener and VideoSourceRestrictions.
The VideoSourceRestrictions describe the maximum pixels per frame and
max frame rate of a video source.

This CL makes the ResourceAdaptationModuleInterface responsible for the
reconfiguration of video sources. The VideoSourceRestrictions is the
output of an adaptation module, and the ResourceAdaptationModuleListener
handles the callback for when the source restrictions change.

The OveruseFrameDetectorResourceAdaptationModule is updated to output
its changes using these interfaces, and VideoStreamEncoder - now a
listener - is made responsible for triggering the reconfiguring the
video source.

Performing the reconfiguration still requires interacting with the
VideoSourceProxy - it is still partially responsible for keeping track
of rtc::VideoSinkWants settings and performing AddOrUpdateSink(). For
now this may look a bit weird: the VideoSourceProxy tells the
VideoStreamEncoder about the new restrictions, and then the
VideoStreamEncoder tells the VideoSourceProxy to apply these
restrictions on the source/sink. This exercises the listener though, and
unblocks the next CL.

The next CL should move all "configuring the source" logic to the
VideoStreamEncoder instead, so that the only information that is tracked
by OveruseFrameDetectorResourceAdaptationModule is what it actually
outputs to the listener. See the next CL
(https://webrtc-review.googlesource.com/c/src/+/162802) where a
VideoSourceController is introduced, to be owned by the
VideoStreamEncoder rather than the adaptation module.

Bug: webrtc:11222
Change-Id: I450ce74f51d96c4b98009a06134db671893d8fdc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/162522
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30227}
2020-01-13 10:57:00 +00:00
Henrik Boström
382cc6d8a6 Add incomplete ResourceAdaptationModuleInterface.
This interface will be improved upon iteratively to aid reviewability.
The initial version only handles starting and stopping the module; input
and output of the module is still implementation-specific.

TBR=sprang@webrtc.org

Bug: webrtc:11222
Change-Id: Ie307cfe3d3211c84346c035f2c0e9a632f58221b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/162580
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30167}
2020-01-07 13:24:42 +00:00
Henrik Boström
b08882b625 Refactor out VideoStreamEncoder's overuse logic to separate module.
This CL puts the VideoStreamEncoder's current adaptation logic inside
the new class OveruseFrameDetectorResourceAdaptationModule. The
intention is not to change any behavior, only to move code.

Future CLs should step by step decrease the coupling between
OveruseFrameDetectorResourceAdaptationModule, VideoStreamEncoder and
the VideoStreamEncoder's QualityScaler by introducing more abstract
interfaces. This is not done in this CL because it is large enough as
it is, but the long term goal is to make it possible to replace the
existing overuse module with a different implementation.

This CL relies on existing tests exercising the VideoStreamEncoder, but
part of making overuse logic modular should include testing each module
separately as well as continued integration testing of the
VideoStreamEncoder.

Bug: webrtc:11222
Change-Id: I316a174adfd00d60cdd224a23a5f616efd235d13
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161953
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#30163}
2020-01-07 09:55:54 +00:00
Ilya Nikolaevskiy
648b9d77c7 Implement automatic animation detection in VideoStreamEncoder
If WebRTC-AutomaticAnimationDetectionScreenshare experiment is enabled,
content type is screenshare and degradation preference is BALANCED,
then input resolution is restricted if update_rect of the incoming frames
is the same for considerable amount of time and is big enough.

This entails treating BALANCED degradation preference for screenshare as
MAINTAIN_RESOLUTION in adaptation logic.

Bug: webrtc:11058
Change-Id: I903dddf53fcbd7c8eac6c5b1447225b15fd8fe5f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161097
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30002}
2019-12-04 11:24:31 +00:00
philipel
c7a46c49a0 Fix VideoStreamEncoder to not reference encoded data from the RunPostEncode task.
Bug: webrtc:9378
Change-Id: I1ada7018507d0c78fee51523f8cd4fab76c35432
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/160306
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29903}
2019-11-25 14:41:55 +00:00
Åsa Persson
e644a03195 Add field trial for rampup in quality based on available bandwidth.
Bug: none
Change-Id: I32e1ea6fb2f2e20fc631e09b02c8f3a11b6c9fac
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158888
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29751}
2019-11-11 10:13:28 +00:00
Ilya Nikolaevskiy
9560d7dc58 Make update_rect optional in VideoFrame
For the automatic content type detection we need to know if the update
rect is trusted or just not available.

Currently we only care if it's not empty, so in case of no update rect
available, full frame resolution was set as a changed region.

This CL makes the update_rect field optional but should be a no-op in the
current code, as absence of update_rect is treated as a full update via
a new getter method |update_rect_or_full_frame()|.

Bug: webrtc:11058
Change-Id: I913545b71ac2fc845861549ac34eb1b630012109
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158673
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29654}
2019-10-30 11:27:54 +00:00
philipel
e5d0fe0dff Updated VideoStreamEncoder to destroy encoder_queue_ before encoder_switch_experiment_.
Bug: none
Change-Id: I0d72fd0b851bd3f9b5021bc9b51af5da882483dd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/157044
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29484}
2019-10-15 10:04:38 +00:00
Sergey Silkin
41c650bea2 Use bitrate limits provided by encoder.
- Use minimum start bitrate to drop frame and adapt resolution in the
beginning of call.

- Use minimum bitrate to decide whether or not resolution should be
increased based on quality in MAINTAIN_FRAMERATE and BALANCED modes.
In BALANCED mode bitrate limits provided by the corresponding field
trial are prioritized over the limits provided by encoder.

Bug: webrtc:10853
Change-Id: I8257eb64565bcafa6ae9887a1af18e90f8400cac
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/156302
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29461}
2019-10-14 12:57:24 +00:00
Evan Shrubsole
7c079f650d Reland "Fix minor regression caused by a8336d3"
This is a reland of 809198edfff416fce8d75b574a43afab5e67b1cd

A fix was made in https://webrtc-review.googlesource.com/c/src/+/154343
which fixed the regression issues caused by the original patch.

Original change's description:
> Fix minor regression caused by a8336d3
>
> VideoEncoder::SetRates was being called unnessesarily when the fields
> appended to RateControlParameters were changed. Since SetRates only
> cares about RateControlParameters, it should have only been called if
> the RateControlParameters themselves were actually changed.
>
> Bug: webrtc:10126
> Change-Id: Ic47d67e642a3043307fec950e5fba970d9f95167
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/152829
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Commit-Queue: Evan Shrubsole <eshr@google.com>
> Cr-Commit-Position: refs/heads/master@{#29208}

Bug: webrtc:10126
Change-Id: Iecc3ab6a5cd1193a1fa8e824dcf4f0b8165f9bf8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/154359
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29356}
2019-10-01 11:49:38 +00:00
Evan Shrubsole
b6a45dda4c Revert "Fix minor regression caused by a8336d3"
This reverts commit 809198edfff416fce8d75b574a43afab5e67b1cd.

Reason for revert: Performance regressions that need to be addressed.

Original change's description:
> Fix minor regression caused by a8336d3
> 
> VideoEncoder::SetRates was being called unnessesarily when the fields
> appended to RateControlParameters were changed. Since SetRates only
> cares about RateControlParameters, it should have only been called if
> the RateControlParameters themselves were actually changed.
> 
> Bug: webrtc:10126
> Change-Id: Ic47d67e642a3043307fec950e5fba970d9f95167
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/152829
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Commit-Queue: Evan Shrubsole <eshr@google.com>
> Cr-Commit-Position: refs/heads/master@{#29208}

TBR=sprang@webrtc.org,eshr@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: webrtc:10126
Change-Id: I133cbe5d8cb894ed944ae8a2d0f63a78bbed72ee
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/153484
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29221}
2019-09-18 14:38:15 +00:00
Sebastian Jansson
86314cfb5d Cleaning up C++14 move into lambda TODOs.
Bug: webrtc:10945
Change-Id: I4d2f358b0e33b37e4b4f7bfcf3f6cd55e8d46bf9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/153240
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29212}
2019-09-17 19:18:26 +00:00
Evan Shrubsole
809198edff Fix minor regression caused by a8336d3
VideoEncoder::SetRates was being called unnessesarily when the fields
appended to RateControlParameters were changed. Since SetRates only
cares about RateControlParameters, it should have only been called if
the RateControlParameters themselves were actually changed.

Bug: webrtc:10126
Change-Id: Ic47d67e642a3043307fec950e5fba970d9f95167
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/152829
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#29208}
2019-09-17 13:34:18 +00:00
philipel
d9cc8c08dc Encoder switching based on network and/or resolution conditions.
In this CL:
 - Renamed EncoderFailureCallback to EncoderSwitchRequestCallback. An encoder
   switch request can now also be made with a configuration that specifies which
   codec/implementation to switch to.
 - Added "WebRTC-NetworkCondition-EncoderSwitch" field trial that specifies
   switching conditions and desired codec to switch to.
 - Added checks to trigger the switch based on these conditions.

Bug: webrtc:10795
Change-Id: I9d3a9a39a7c4827915a40bdceed10b581d70b90a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151900
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29196}
2019-09-16 13:43:29 +00:00
Niels Möller
fe407b7a1d Move code related to VideoCodingModule to its own build target
The new target, modules/video_coding:video_coding_legacy, is not
depended upon by any webrtc non-test code.

Bug: webrtc:7408
Change-Id: I94127e2b8b3b8f15917bfa38e602f8face91fcdb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/152163
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29133}
2019-09-10 12:34:38 +00:00
Florent Castelli
a8336d3cf4 Connect the stable target rate to the video encoders
The stable target rate is used to make smarter choices in the rate
to chose which layers to enable in SVC or simulcast modes.
the addition of hysteresis, we can improve a call quality by reducing
the amount of resolution switch.


Bug: webrtc:10126
Change-Id: I04d0df9e6bbe247e2f2a668207ff74d475e2464c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/150642
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29112}
2019-09-09 15:06:51 +00:00
Åsa Persson
f5e5d250bc BalancedDegradationSettings: add option to configure a min framerate diff.
If a framerate reduction (input fps - restricted fps) is less than the
configured diff, shorten interval to next qp check.

Bug: none
Change-Id: Ia0b9e0638e5ba75cdc20a1bb45bfcb7d858c5f89
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/149040
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Reviewed-by: Magnus Flodman <mflodman@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28880}
2019-08-16 16:13:46 +00:00
Åsa Persson
139f4dc7ac QualityScaler: Add option to try fast adapt down at start up based on initial bw estimates.
optional<int> initial_bitrate_interval_ms: time interval since start of call
where fast adapt down is allowed.
optional<double> initial_bitrate_factor: try fast adapt down if bw estimate is
below initial bitrate * factor.

Bug: none
Change-Id: I63e1fdaac6556d8e9a961a42e11c925f9ecb9771
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/147725
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28753}
2019-08-05 09:43:19 +00:00
Sergey Silkin
6456e352ac Use max bitrate limit recommended by encoder.
If VideoEncoderConfig::max_bitrate_bps is unset then max bitrate of
video stream is set equal to max bitrate value recommended by encoder
for given resolution via encoder capabilities (if available).

Bug: webrtc:10796
Change-Id: I7fce9afc476b794a16956e694e891faee110048e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144526
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28515}
2019-07-09 13:56:56 +00:00
philipel
e8ed83003d WebRtcVideoChannel encoder fallback.
In this CL:
 - Added WEBRTC_VIDEO_CODEC_ENCODER_FAILURE return code that can
   be returned by the encoder wrapper in case of a broken encoder.
 - Added EncoderFailureCallback interface that can be called
   to request encoder fallback to be performed. Implemented by
   WebRtcVideoChannel and called from the VideoStreamEncoder.
 - Updated SelectSendVideoCodec to select all compatible codecs instead
   of just one.

Bug: webrtc:10795
Change-Id: I87a83fd02e48c40493c930471c06c3d0941031ab
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/140888
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28462}
2019-07-03 12:31:42 +00:00
Sergey Silkin
5ee6967c4e Don't reset encoder on max/min bitrate change.
- Don't reset encoder if max/min bitrate changed.
- Removed min/max bitrate DCHECKs from encoder wrappers.
- Reset encoder if start_bitrate changed. Only do this if encoding
  has not yet started.
- Updated ReconfigureBitratesSetsEncoderBitratesCorrectly test.
- Removed EncoderSetupPropagatesCommonEncoderConfigValues test since it
was a subset of ReconfigureBitratesSetsEncoderBitratesCorrectly.

Bug: webrtc:10773
Change-Id: Id9cbb2ea229232fd95967819e2a937b26948de9f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144028
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28446}
2019-07-02 12:52:55 +00:00
Elad Alon
8f01c4e1b6 Define FecControllerOverride and plumb it down to VideoEncoder
The purpose of this interface is to allow VideoEncoder to override
the bandwidth allocation set by FecController in RtpVideoSender.

This CL defines the interface and sends it down to VideoSender.
Two upcoming CLs will:
1. Make LibvpxVp8Encoder pass it on to the (injectable)
   FrameBufferController, where it might be put to good use.
2. Modify RtpVideoSender to respond to the message sent to it
   via this API.

TBR=kwiberg@webrtc.org

Bug: webrtc:10769
Change-Id: I2ef82f0ddcde7fd078e32d8aabf6efe43e0f7f8a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/143962
Commit-Queue: Elad Alon <eladalon@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28416}
2019-06-28 15:57:22 +00:00
Åsa Persson
1231419785 BalancedDegradationSettings: Add option to configure QP thresholds.
Add possibility to configure low/high QP thresholds based on resolution.

Bug: none
Change-Id: Iaa3168b77678bd74feb67295d7658c0140721231
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/141867
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28348}
2019-06-24 09:32:51 +00:00
Ilya Nikolaevskiy
2ebf523978 Reland "Copy video frames metadata between encoded and plain frames in one place"
Reland with fixes.

Currently some video frames metadata like rotation or ntp timestamps are
copied in every encoder and decoder separately. This CL makes copying to
happen at a single place for send or receive side. This will make it
easier to add new metadata in the future.

Also, added some missing tests.

Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346

Bug: webrtc:10460
Change-Id: I98629589fa55ca1d74056033cf86faccfdf848cd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/136582
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27930}
2019-05-13 14:51:11 +00:00
Ilya Nikolaevskiy
de20b9683c Revert "Reland "Copy video frames metadata between encoded and plain frames in one place""
This reverts commit 4fb12b0caec9faa57cfbceb0f86b0e10c32a0cc2.

Reason for revert: Breaks some asan chromium bots

Original change's description:
> Reland "Copy video frames metadata between encoded and plain frames in one place"
> 
> Reland with fixes.
> 
> Currently some video frames metadata like rotation or ntp timestamps are
> copied in every encoder and decoder separately. This CL makes copying to
> happen at a single place for send or receive side. This will make it
> easier to add new metadata in the future.
> 
> Also, added some missing tests.
> 
> Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346
> 
> Bug: webrtc:10460
> Change-Id: Ia71198685de7fbd990704b575231cdce94dc0645
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134961
> Reviewed-by: Johannes Kron <kron@webrtc.org>
> Reviewed-by: Niels Moller <nisse@webrtc.org>
> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27828}

TBR=ilnik@webrtc.org,nisse@webrtc.org,sprang@webrtc.org,kron@webrtc.org,artit@webrtc.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: webrtc:10460
Change-Id: I9c87a43a716622b389974cb8377f973573fc29a5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/135747
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27895}
2019-05-09 17:47:51 +00:00
Åsa Persson
f3d828eb8e Make balanced degradation settings configurable through field trial.
Bug: none
Change-Id: Iad6dfdfdae13149bb8abe4b884e288e50aa7b73d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/135102
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27892}
2019-05-09 12:13:24 +00:00
Ilya Nikolaevskiy
4fb12b0cae Reland "Copy video frames metadata between encoded and plain frames in one place"
Reland with fixes.

Currently some video frames metadata like rotation or ntp timestamps are
copied in every encoder and decoder separately. This CL makes copying to
happen at a single place for send or receive side. This will make it
easier to add new metadata in the future.

Also, added some missing tests.

Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346

Bug: webrtc:10460
Change-Id: Ia71198685de7fbd990704b575231cdce94dc0645
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134961
Reviewed-by: Johannes Kron <kron@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27828}
2019-05-02 13:29:14 +00:00
philipel
da5aa4ddf5 Use CodecBufferUsage to determine dependencies.
In this CL:
 - Assign frame IDs so that simulcast streams share one frame ID space.
 - Added a CodecBufferUsage class that represent how a particular buffer
   was used (updated, referenced or both).
 - Calculate frame dependencies based on the CodecBufferUsage information.

Bug: webrtc:10342
Change-Id: I4ed5ad703f9376a7d995c04bb757c7d214865ddb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/131287
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27784}
2019-04-26 12:13:28 +00:00
Artem Titarenko
4b1afbe60a Revert "Reland "Copy video frames metadata between encoded and plain frames in one place""
This reverts commit c9a2c5e93aa51606916e6728454bcff26bb75f79.

Reason for revert: Breaks downstream test

Original change's description:
> Reland "Copy video frames metadata between encoded and plain frames in one place"
> 
> Reland with fixes: Do not remove extra metadata copies in software decoders as some downstream projects assumes these fields are copied by the encoders.
> 
> Currently some video frames metadata like rotation or ntp timestamps are
> copied in every encoder and decoder separately. This CL makes copying to
> happen at a single place for send or receive side. This will make it
> easier to add new metadata in the future.
> 
> Also, added some missing tests.
> 
> Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346
> 
> Bug: webrtc:10460
> Change-Id: I8e49589bf75f406e2b5ddee34882de0faedbd09a
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134102
> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Reviewed-by: Johannes Kron <kron@webrtc.org>
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27756}

TBR=ilnik@webrtc.org,sprang@webrtc.org,kron@webrtc.org,artit@webrtc.org

Change-Id: I34cc563ec6383735c2a76a6f45a72a7726b74421
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:10460
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134204
Reviewed-by: Artem Titarenko <artit@google.com>
Commit-Queue: Artem Titarenko <artit@google.com>
Cr-Commit-Position: refs/heads/master@{#27765}
2019-04-25 11:39:31 +00:00
Ilya Nikolaevskiy
c9a2c5e93a Reland "Copy video frames metadata between encoded and plain frames in one place"
Reland with fixes: Do not remove extra metadata copies in software decoders as some downstream projects assumes these fields are copied by the encoders.

Currently some video frames metadata like rotation or ntp timestamps are
copied in every encoder and decoder separately. This CL makes copying to
happen at a single place for send or receive side. This will make it
easier to add new metadata in the future.

Also, added some missing tests.

Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346

Bug: webrtc:10460
Change-Id: I8e49589bf75f406e2b5ddee34882de0faedbd09a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134102
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Johannes Kron <kron@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27756}
2019-04-25 09:13:15 +00:00
Artem Titarenko
84ae2b6efd Revert "Copy video frames metadata between encoded and plain frames in one place"
This reverts commit 00d0a0a1a9520fb4323d7e3a1c02133b7b942978.

Reason for revert: Breaks downstream tests

Original change's description:
> Copy video frames metadata between encoded and plain frames in one place
> 
> Currently some video frames metadata like rotation or ntp timestamps are
> copied in every encoder and decoder separately. This CL makes copying to
> happen at a single place for send or receive side. This will make it
> easier to add new metadata in the future.
> 
> Also, added some missing tests.
> 
> Bug: webrtc:10460
> Change-Id: Ia49072c3041e75433f125a61050d2982b2bec1da
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133346
> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Reviewed-by: Johannes Kron <kron@webrtc.org>
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27719}

TBR=ilnik@webrtc.org,sprang@webrtc.org,kron@webrtc.org

Change-Id: I8960a6cc15e552925129ba0037f197ff3fd93c25
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:10460
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134100
Reviewed-by: Artem Titarenko <artit@webrtc.org>
Commit-Queue: Artem Titarenko <artit@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27737}
2019-04-24 12:56:52 +00:00