This is done by adding a reorder optimizer that estimates the probability of receiving reordered packets.
The optimal delay is decided by balancing the cost of increasing the delay against the probability of missing a reordered packet, resulting in a loss. This balance is decided using the `ms_per_loss_percent` parameter.
The usage and parameters can be controlled via field trial.
Bug: webrtc:10178
Change-Id: Ic484df0412af35610e74b3a6070f2bac7a926a63
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231541
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34954}
Setting the rtp header extensions on the packet delivery thread
(currently worker, soon to be network), is now possible without
taking the hit of deleting and recreating the receive stream (and
rtp receiver and related state).
Bug: webrtc:11993
Change-Id: I9bbe306844a25d85d79cd216092ead66eaf68960
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/223741
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34953}
The HandleXr method has output arguments that are not set when an RTCP
report cannot be parsed. We should give these a sensible default value
to avoid accessing uninitialized memory
Bug: chromium:1247182
Change-Id: I6c54260aef3834643c41b96c0709489522d82533
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231237
Commit-Queue: Ivo Creusen <ivoc@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34943}
To focus on the ability to predict clipping, the clipping predictor
evaluator doesn't increment the true positive count anymore when a
prediction is simultaneously observed with a detection.
Note that `WebRTC.Audio.Agc.ClippingPredictor.F1Score` is still used
to log the F1 score - i.e., the histogram hasn't been renamed.
Bug: webrtc:12774
Change-Id: Ia987e568a6df2a3ddba7fa1b5697d6feda22d20c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231233
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Reviewed-by: Hanna Silen <silen@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34942}
BitstreamReader itself uses idea of Read function that always succeed,
and a separate function to check for errors.
Thus extra layer in the DependencyDescriptorReader is not needed.
Bug: None
Change-Id: Ie58861f2cbecc02a5a1a9538232494b4442c9afd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231226
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34940}
Split out `RelativeArrivalDelayTracker` and `DelayOptimizer` logic.
This is in preparation for adding another `DelayOptimizer` specialized in handling reordered packets.
Bug: webrtc:10178
Change-Id: Id3c1746d91980b171fa524f9b2b71cf11fc75f64
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231224
Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org>
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34938}
Evaluate the clipping predictor whenever injected but keep using the
predictions only when allowed.
Bug: webrtc:12774
Change-Id: I9e8930a528d1d514d52b821a28b6c8ad0c3aeb5e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231137
Reviewed-by: Minyue Li <minyue@webrtc.org>
Reviewed-by: Alessio Bazzica <alessiob@webrtc.org>
Commit-Queue: Hanna Silen <silen@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34937}
Move Precision, Recall and F1-score computation from `AgcManagerDirect`
to a separate function that can be tested.
Bug: webrtc:12774
Change-Id: Iba20f153a72b7f957bf938e0642055d421045c02
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231228
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Reviewed-by: Hanna Silen <silen@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34933}
In benchmarks, each log statement represent 2% of the CPU usage. RTC_LOG
is not very expensive, but not free either, and it's called for every
received and sent packet.
Bug: webrtc:12943
Change-Id: Id65baafb5e494091a3a7604687718fdd4f477d86
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231223
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34929}
The previous limits were taken from Oracles SCTP stack[1] as they were
more up-to-date than the suggested ones in RFC4960. However, after
having evaluated them for a while, it's evident that they are a bit too
aggressive and likely have their origin from a wired LAN network.
Let's do a re-take. These values have been taken from Solaris TCP
stack[2]. They are even less aggressive than Linux defaults. This can be
iterated even more, and is always possible to override by the client.
It's generally the increase of rto_min that is helping here, as the
delayed SACK and RTT jitter require that the RTO.min is quite much
higher than the delayed SACK timeout of the peer (which isn't in control
by us, but one can assume it's 200ms or less). And with a too low
RTO.min, it's increased risk of getting spurious retransmissions and
decreasing the congestion window.
[1] https://docs.oracle.com/cd/E93309_01/docs.466/SIGTRAN/GUID-2136614F-4BED-407C-87B0-7EE10E0FF534.htm
[2] https://docs.oracle.com/cd/E19120-01/open.solaris/819-2724/chapter4-69/index.html
Bug: webrtc:12943
Change-Id: I9678ac4396286a55c251c5f57589379da70fd27d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231139
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34927}
According to the RANDR 1.5 spec:
https://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt
RRSetMonitor and RRDeleteMonitor requests will generate a
ConfigureNotify event on the root window of the screen.
They do not appear to generate any RRScreenChangeNotify or other
similar event. So this CL causes ScreenCapturerX11's monitor list to be
updated on ConfigureNotify events. It is needed, for example, when
using a commandline such as "xrandr --setmonitor ..." to add monitors.
Bug: None
Change-Id: I1948a8b96800721409472ac6264c935abe169ec3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/230882
Commit-Queue: Joe Downing <joedow@chromium.org>
Reviewed-by: Joe Downing <joedow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#34919}
Both suppressions are related to the same lock and can be triggered
from 2 different API calls.
Since those calls are causing a significant amount of flaky tests,
I opted to suppress the issue for now, until we can either find a solution
upstream or replace usrsctp with DcSCTP.
Bug: webrtc:12823
Change-Id: I0ae49c94810264f94838b97781080cf5e6e4b24c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231136
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34916}
This reverts commit 677195d3eb6a5f0bc1d31d794a5190ba281c0335.
Reason for revert: Broke WebRTC to Chrome rolls:
https://crrev.com/c/3141000
example: https://ci.chromium.org/ui/p/chromium/builders/try/linux-rel/790256/overview
The error is similar to the failure on previous attempt to land this CL. See: https://crrev.com/c/3135220, and crash https://ci.chromium.org/ui/p/chromium/builders/try/linux-rel/787945/overview
Original change's description:
> Reland "PipeWire capturer: implement proper DMA-BUFs support""
>
> This is a reland of f2177f6612079ccce9c320ea7e77bc934c684f5c
>
> Original change's description:
> > PipeWire capturer: implement proper DMA-BUFs support
> >
> > Currently both KWin (KDE) and Mutter (GNOME) window managers don't
> > use DMA-BUFs by default, but only when client asks specifically for
> > them (KWin) or when experimental DMA-BUF support is enabled (Mutter).
> > While current implementation works just fine on integrated graphics
> > cards, it causes issues on dedicated GPUs (AMD and NVidia) where the
> > code either crashes or screensharing is slow and unusable.
> >
> > To fix this, DMA-BUFs has to be opened using OpenGL context and not
> > being directly mmaped(). This implementation requires to use DMA-BUF
> > modifiers, as they are now mandatory for DMA-BUFs usage.
> >
> > Documentation for this behavior can be found here:
> > https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/doc/dma-buf.dox
> >
> > Bug: chromium:1233417, webrtc:13137
> > Change-Id: I0cecf16d6bb0f576954b9e8f071cab526f7baf2c
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227022
> > Commit-Queue: Tommi <tommi@webrtc.org>
> > Reviewed-by: Tommi <tommi@webrtc.org>
> > Reviewed-by: Erik Språng <sprang@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#34889}
>
> Bug: chromium:1233417, webrtc:13137
> Change-Id: I7d5763dd5db708cee20a31e559b26db0287f40d6
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/230946
> Reviewed-by: Tommi <tommi@webrtc.org>
> Commit-Queue: Tommi <tommi@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#34903}
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: chromium:1233417, webrtc:13137
Change-Id: I64e2ce864f69e6097aba65ade04af7166e407409
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231135
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34915}
Update users to pass in the appropriate rtc::SocketFactory, instead of
relying on BasicPacketSocketFactory using the rtc::SocketServer
associated with the thread the constructor runs on.
Bug: webrtc:13145
Change-Id: I74eca1ce2c5885c14372a797f6374825b1bc1873
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231134
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34914}
By allowing the max timer backoff duration to be limited, a socket can
fast recover in case of intermittent network issues. Before this CL, the
exponential backoff algorithm could result in very long retry durations
(in the order of minutes), when connection has been lost or been flaky
for a long while.
Note that limiting the maximum backoff duration might require
compensating the maximum retransmission limit to avoid closing the
socket prematurely due to reaching the maximum retransmission limit much
faster than previously.
Bug: webrtc:13129
Change-Id: Ib94030d666433e3fa1a2c8ef69750a1afab8ef94
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/230702
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34913}
The desktop capturer uses a circular queue (currently of length 2) to
implement a double-buffer scheme. This allows a C++ API consumer to keep
a reference to the latest captured image without the pixels being
overwritten by a pending capture request.
The DCHECK was intended to warn that the application is still holding a
reference to a recycled frame that is being captured into. This made
sense when the capturer implementations were originally part of the
Chromoting host process. Now that the capturers are part of the WebRTC
C++ library, a DCHECK seems too harsh. A DCHECK should be reserved for
impossible conditions, but this one triggers simply because an API
consumer holds onto a reference for too long. This CL changes these
DCHECKs into log warnings.
The DCHECK is sometimes triggered by the Chromoting host process
(because of the recent change to use the standard encoding pipeline).
This is tracked by http://crbug.com/1239746.
Bug: None
Change-Id: Iad9ef38b4800315bd17c93b27d287e115d4fe54c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/230881
Commit-Queue: Joe Downing <joedow@chromium.org>
Reviewed-by: Joe Downing <joedow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#34910}
delta_q is encoded as signed integer (s(4)) that uses extra bit for the
sign. See VP9 Bitstream Specification section 6.2.10 Delta quantizer syntax
Bug: None
Change-Id: Ib458c2a2ded3c4d6c153b6bedd29c48ef12cc538
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231125
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34908}
