zqz/platform-external-webrtc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Set pacer target bitrate to max of bwe and bitrate allocation.

Browse Source 
ChannelGroup::OnNetWorkChanged() should not configure the pacer to send
a lower bitrate than what bitrate_allocator has actually allocated (may
be the case if min_bitrate is enforced, for instance).

BUG=

Review URL: https://codereview.webrtc.org/1413663004

Cr-Commit-Position: refs/heads/master@{#10519}
This commit is contained in:
sprang
2015-11-05 04:25:49 -08:00
committed by Commit bot
parent a81a239ecd
commit 2f48d94124
3 changed files with 25 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
webrtc/call/congestion_controller.cc
View File

@ -282,16 +282,22 @@ void CongestionController::SignalNetworkState(NetworkState state) {
void CongestionController::OnNetworkChanged(uint32_t target_bitrate_bps,
uint8_t fraction_loss,
int64_t rtt) {
bitrate_allocator_->OnNetworkChanged(target_bitrate_bps, fraction_loss, rtt);
uint32_t allocated_bitrate_bps = bitrate_allocator_->OnNetworkChanged(
target_bitrate_bps, fraction_loss, rtt);
int pad_up_to_bitrate_bps = 0;
{
rtc::CritScope lock(&encoder_crit_);
for (const auto& encoder : encoders_)
pad_up_to_bitrate_bps += encoder->GetPaddingNeededBps();
}
// Allocated bitrate might be higher than bitrate estimate if enforcing min
// bitrate, or lower if estimate is higher than the sum of max bitrates, so
// set the pacer bitrate to the maximum of the two.
uint32_t pacer_bitrate_bps =
std::max(target_bitrate_bps, allocated_bitrate_bps);
pacer_->UpdateBitrate(
target_bitrate_bps / 1000,
PacedSender::kDefaultPaceMultiplier * target_bitrate_bps / 1000,
pacer_bitrate_bps / 1000,
PacedSender::kDefaultPaceMultiplier * pacer_bitrate_bps / 1000,
pad_up_to_bitrate_bps / 1000);
}