Plot bitrate allocation per layer based on RTCP XR target bitrate.
Bug: webrtc:10312
Change-Id: Ic0221e71d27d1fdc35c50a93e7e2303953c4fbf5
Reviewed-on: https://webrtc-review.googlesource.com/c/123222
Reviewed-by: Mirta Dvornicic <mirtad@webrtc.org>
Commit-Queue: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26717}diff --git a/rtc_tools/event_log_visualizer/analyzer.cc b/rtc_tools/event_log_visualizer/analyzer.cc
index 1b52c30..a4126bc 100644
--- a/rtc_tools/event_log_visualizer/analyzer.cc
+++ b/rtc_tools/event_log_visualizer/analyzer.cc
@@ -1115,6 +1115,46 @@
plot->SetTitle(GetDirectionAsString(direction) + " bitrate per stream");
}
+// Plot the bitrate allocation for each temporal and spatial layer.
+// Computed from RTCP XR target bitrate block, so the graph is only populated if
+// those are sent.
+void EventLogAnalyzer::CreateBitrateAllocationGraph(PacketDirection direction,
+ Plot* plot) {
+ std::map<LayerDescription, TimeSeries> time_series;
+ const auto& xr_list = parsed_log_.extended_reports(direction);
+ for (const auto& rtcp : xr_list) {
+ const absl::optional<rtcp::TargetBitrate>& target_bitrate =
+ rtcp.xr.target_bitrate();
+ if (!target_bitrate.has_value())
+ continue;
+ for (const auto& bitrate_item : target_bitrate->GetTargetBitrates()) {
+ LayerDescription layer(rtcp.xr.sender_ssrc(), bitrate_item.spatial_layer,
+ bitrate_item.temporal_layer);
+ auto time_series_it = time_series.find(layer);
+ if (time_series_it == time_series.end()) {
+ std::string layer_name = GetLayerName(layer);
+ bool inserted;
+ std::tie(time_series_it, inserted) = time_series.insert(
+ std::make_pair(layer, TimeSeries(layer_name, LineStyle::kStep)));
+ RTC_DCHECK(inserted);
+ }
+ float x = config_.GetCallTimeSec(rtcp.log_time_us());
+ float y = bitrate_item.target_bitrate_kbps;
+ time_series_it->second.points.emplace_back(x, y);
+ }
+ }
+ for (auto& layer : time_series) {
+ plot->AppendTimeSeries(std::move(layer.second));
+ }
+ plot->SetXAxis(config_.CallBeginTimeSec(), config_.CallEndTimeSec(),
+ "Time (s)", kLeftMargin, kRightMargin);
+ plot->SetSuggestedYAxis(0, 1, "Bitrate (kbps)", kBottomMargin, kTopMargin);
+ if (direction == kIncomingPacket)
+ plot->SetTitle("Target bitrate per incoming layer");
+ else
+ plot->SetTitle("Target bitrate per outgoing layer");
+}
+
void EventLogAnalyzer::CreateSendSideBweSimulationGraph(Plot* plot) {
using RtpPacketType = LoggedRtpPacketOutgoing;
using TransportFeedbackType = LoggedRtcpPacketTransportFeedback;