Commit graph

18 commits

Author SHA1 Message Date
philipel
55a9a3de64 Use doubles instead of api/units for jitter estimation.
For now use doubles as units in api/units have insufficient precision for jitter estimation.

Bug: webrtc:14381
Change-Id: I5a691b6a404b734a5bef11d677b72040bc02ff0f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/272367
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37841}
2022-08-19 11:59:58 +00:00
Rasmus Brandt
94b3b5e341 Improve sanity checks
- Move existing check on `max_frame_size` to the top.
    By doing this early, the filter will not end up in an
    inconsistent state (predicted but not updated) when
    called with a tiny `max_frame_size`.
- Add sanity check on noise variance.
    This will avoid sqrt of a negative number.

Bug: webrtc:14151
Change-Id: I2507a9114655d3c3ae35bf5ed83f3f1154c42ad3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271281
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37798}
2022-08-16 13:37:22 +00:00
Rasmus Brandt
875c9d357b Reorder Kalman filter update steps physically (but not logically)
This CL reorders the update steps physically, to make them
easier to comprehend. It renames variables to be more verbose,
but also adds succinct mathematical descriptions (using Wikipedia
notation) to all steps.

No functional changes are intended with this change.

Bug: webrtc:14151
Change-Id: I6a4642e89e2b73639f0b4c928e07b317c14d5884
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271546
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37784}
2022-08-15 14:56:06 +00:00
Rasmus Brandt
24a8e0d161 Remove unnecessary virtual function specifiers
This class is never overridden.

Bug: webrtc:14151
Change-Id: I3b70e927ee0eafd71ce4bdb8f6e8d6330c1a3f08
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271501
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37781}
2022-08-15 08:58:46 +00:00
Rasmus Brandt
1856b2ce71 Stop adding zeros for the off-diagonal components
Bug: webrtc:14151
Change-Id: I58017cab911e642f457f665c5f4d1ff6d11d8571
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271545
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37768}
2022-08-12 16:04:34 +00:00
Rasmus Brandt
949530e6aa Improve FrameDelayDeltaKalmanFilter members naming.
* Update naming of data members.
* Start reordering code blocks in `PredictAndUpdate`.
  (The "predict" step is done in this C:. The "update"
   step will be improved in another cl.)

Bug: webrtc:14151
Change-Id: Idea1e8e786bd672dadedbcb3cd5598f4a033e81e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271023
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37767}
2022-08-12 14:07:44 +00:00
Rasmus Brandt
ae4a832730 Improve FrameDelayDeltaKalmanFilter interface and add more docs.
This CL simplifies and documents the interface of the Kalman filter better. A simple unit test verifying the filter's convergence is
added. No functional changes to the filter are intended.

Future CLs will improve the data member naming and code organization.

Bug: webrtc:14151
Change-Id: I01e60d4b783cabad3ccbdc711c5d746666dd16ca
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/265877
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37766}
2022-08-12 13:42:23 +00:00
Johannes Kron
ef4a2cfc45 Remove condition that will never be active
Remove check if `prev_estimate_` is less than 10 us since it can never
be less than 1 ms.

Bug: None
Change-Id: If151390d22fa0b6ecdc36af64168d3e2049c7b6b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/271203
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Johannes Kron <kron@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37745}
2022-08-11 09:41:52 +00:00
Rasmus Brandt
39ae69690e Split out the jitter estimator's Kalman filter into its own class.
The intention of this change is to separate the Kalman filter state
(that prior to this change lived in JitterEstimator) from the
other filter's state, making it easier to see how the different
filters interact.

This move does not include any interface, functional, or
documentation changes. Those will follow in later changes.

A very basic unit test is added, which will also be expanded
later on.

Bug: webrtc:14151
Change-Id: Ifb9b8ce2d9418ea52ccf64a77fd46d1ebba30779
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264984
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37721}
2022-08-09 12:45:08 +00:00
Philipp Hancke
a204ad210d clean up misc TimeDelta use
follow-up from https://webrtc-review.googlesource.com/c/src/+/262810

* replace Time::Millis(0) and TimeDelta::Millis(0) with ::Zero()
* drop unnecessary webrtc namespace from some TimeDeltas
* make TimeDelta do the unit conversion for stats

BUG=webrtc:13756

Change-Id: Ic60625ae0fc7959a47a6be9f5051851feaf76373
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/265875
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37664}
2022-08-02 13:52:36 +00:00
Evan Shrubsole
496ad52cb2 UpdateCurrentDelay should update delay with rounding errors
Some of the timestamps input into UpdateCurrentDelay are not truncated
to milliseconds and thus a small negative delay can result. This means
the delay will not update when it should have.

Bug: webrtc:14168
Change-Id: I5293339b6a39201c680854e9596b717025ee8dc1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266370
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37657}
2022-08-02 08:47:54 +00:00
Erik Språng
23370f22c1 Remove unused field trial WebRTC-ReducedJitterDelayKillSwitch.
Bug: None
Change-Id: I8747e63d5c237dce6516b69db95035728ca9965c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269206
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Auto-Submit: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37626}
2022-07-27 13:28:35 +00:00
Erik Språng
93b107d0f0 Remove unused field trial WebRTC-JitterUpperBound
Bug: webrtc:9898
Change-Id: I89f2baca9b96fc00fc73d24086e7c6f5ed8307a8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269401
Reviewed-by: Emil Lundmark <lndmrk@webrtc.org>
Auto-Submit: Erik Språng <sprang@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37620}
2022-07-26 10:21:04 +00:00
philipel
e1c707c40f Remove unused incomplete_frame argument from JitterEstimator.
Bug: webrtc:14151
Change-Id: I6764315f0c10b304f50e4639a3e49e4ed013c41e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267842
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37443}
2022-07-05 12:53:13 +00:00
Johannes Kron
bbf639e930 Add low-latency stream signaling to VideoFrame and VCMTiming
This is the first CL out of three to make the low-latency stream signaling
explicit. At the moment this is done by setting the render time to 0.
There's a dependency between Chromium and WebRTC which is why this is
split into three CLs to not break any existing functionality.

Bug: chromium:1327251
Change-Id: Ie6b268746d587a99334485db77181fb2c6e9b567
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264502
Reviewed-by: Evan Shrubsole <eshr@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Johannes Kron <kron@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37225}
2022-06-15 14:04:28 +00:00
Rasmus Brandt
c4d253c1ed Move VCMTiming into timing sub-folder
Bug: webrtc:14111
Change-Id: I9785b00012ea84f55789845a7e71fe26006d5067
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/263581
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37061}
2022-05-31 13:01:24 +00:00
Rasmus Brandt
10944e61ac Move JitterEstimator into timing sub-folder
Bug: webrtc:14111
Change-Id: Ic5c66f35e3cedac7a328fbb6613e5cdf13a8005e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/263582
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37000}
2022-05-25 09:15:29 +00:00
Rasmus Brandt
2377226851 Start moving timing helper classes into timing/ sub-folder.
Putting these classes in a sub folder increases
structure and clarifies that they are used as
helper classes. Affected classes in this change:
  * CodecTimer
  * InterFrameDelay
  * RttFilter
VCMTiming will be moved in a separate CL.

Additional changes:
  * Remove VCM prefix from class names.
  * Introduce granular BUILD.gn targets.
  * Update some includes.

Bug: webrtc:14111
Change-Id: Ia75128aa955a819033b97d4784cb61904de7230b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262960
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36975}
2022-05-23 13:43:40 +00:00