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Probing: Add support for exponential startup probing

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Adds support for exponentially probing the bandwidth at start-up to allow
ramp-up to real capacity of the network.

BUG=webrtc:6332
R=philipel@webrtc.org, stefan@webrtc.org

Review URL: https://codereview.webrtc.org/2235373004 .

Cr-Commit-Position: refs/heads/master@{#14189}
This commit is contained in:
Irfan Sheriff
2016-09-12 12:28:54 -07:00
parent a421ddd60e
commit b2540bb99f
25 changed files with 353 additions and 112 deletions
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12
webrtc/modules/bitrate_controller/bitrate_controller_impl.cc
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@ -31,7 +31,7 @@ class BitrateControllerImpl::RtcpBandwidthObserverImpl
}
// Received RTCP REMB or TMMBR.
void OnReceivedEstimatedBitrate(uint32_t bitrate) override {
owner_->OnReceivedEstimatedBitrate(bitrate);
owner_->OnReceiverEstimatedBitrate(bitrate);
}
// Received RTCP receiver block.
void OnReceivedRtcpReceiverReport(const ReportBlockList& report_blocks,
@ -173,7 +173,8 @@ void BitrateControllerImpl::SetReservedBitrate(uint32_t reserved_bitrate_bps) {
MaybeTriggerOnNetworkChanged();
}
void BitrateControllerImpl::OnReceivedEstimatedBitrate(uint32_t bitrate) {
// This is called upon reception of REMB or TMMBR.
void BitrateControllerImpl::OnReceiverEstimatedBitrate(uint32_t bitrate) {
{
rtc::CritScope cs(&critsect_);
bandwidth_estimation_.UpdateReceiverEstimate(clock_->TimeInMilliseconds(),
@ -182,7 +183,7 @@ void BitrateControllerImpl::OnReceivedEstimatedBitrate(uint32_t bitrate) {
MaybeTriggerOnNetworkChanged();
}
void BitrateControllerImpl::UpdateProbeBitrate(uint32_t bitrate_bps) {
void BitrateControllerImpl::OnProbeBitrate(uint32_t bitrate_bps) {
{
rtc::CritScope cs(&critsect_);
bandwidth_estimation_.SetSendBitrate(bitrate_bps);
@ -190,7 +191,10 @@ void BitrateControllerImpl::UpdateProbeBitrate(uint32_t bitrate_bps) {
MaybeTriggerOnNetworkChanged();
}
void BitrateControllerImpl::UpdateDelayBasedEstimate(uint32_t bitrate_bps) {
// TODO(isheriff): Perhaps need new interface for invocation from DelayBasedBwe.
void BitrateControllerImpl::OnReceiveBitrateChanged(
const std::vector<uint32_t>& ssrcs,
uint32_t bitrate_bps) {
{
rtc::CritScope cs(&critsect_);
bandwidth_estimation_.UpdateDelayBasedEstimate(clock_->TimeInMilliseconds(),