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Add ability to cap the video jitter estimate to a max value.

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Bug: webrtc:10572
Change-Id: I21112824dc02afa71db61bb8c2f02723e8b325b6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133963
Commit-Queue: Michael Horowitz <mhoro@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27744}
This commit is contained in:
“Michael
2019-04-24 08:04:34 -05:00
committed by Commit Bot
parent 9b809d3e7f
commit a8ae407a48
6 changed files with 19 additions and 10 deletions
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7
modules/video_coding/jitter_estimator.cc
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@ -384,7 +384,8 @@ void VCMJitterEstimator::UpdateMaxFrameSize(uint32_t frameSizeBytes) {
// Returns the current filtered estimate if available,
// otherwise tries to calculate an estimate.
int VCMJitterEstimator::GetJitterEstimate(double rttMultiplier) {
int VCMJitterEstimator::GetJitterEstimate(double rttMultiplier,
double jitterEstCapMs) {
double jitterMS = CalculateEstimate() + OPERATING_SYSTEM_JITTER;
uint64_t now = clock_->TimeInMicroseconds();
@ -393,8 +394,10 @@ int VCMJitterEstimator::GetJitterEstimate(double rttMultiplier) {
if (_filterJitterEstimate > jitterMS)
jitterMS = _filterJitterEstimate;
if (_nackCount >= _nackLimit)
if (_nackCount >= _nackLimit) {
jitterMS += _rttFilter.RttMs() * rttMultiplier;
jitterMS = std::min(jitterMS, jitterEstCapMs);
}
static const double kJitterScaleLowThreshold = 5.0;
static const double kJitterScaleHighThreshold = 10.0;