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Remove 'trackId' dependency in stats selector algorithm.

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In preparation for the deletion of deprecated 'track' stats, the
stats selector algorithm needs to be rewritten not to use 'trackId'.

This is achieved by finding RTP stats by their SSRC, as obtained via
getParameters(). This unfortunately adds a block-invoke (in the sender
case the block-invoke happens inside GetParametersInternal and in the
receiver case the block-invoke is explicit at the calling place), but
it can't be helped and it's just once per getStats() call and only if
the selector argument is used.

Bug: webrtc:14175
Change-Id: If0e14cdbdc76d141e0042e43757970893bf32119
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/289101
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38981}
This commit is contained in:
Henrik Boström 2022-12-23 18:17:06 +01:00 committed by WebRTC LUCI CQ
parent 97ba853295
commit 81aab48878
3 changed files with 42 additions and 32 deletions
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63
pc/rtc_stats_collector.cc
View File

@ -1249,7 +1249,10 @@ void ProduceReceiverMediaTrackStats(
}
}
rtc::scoped_refptr<RTCStatsReport> CreateReportFilteredBySelector(
} // namespace
rtc::scoped_refptr<RTCStatsReport>
RTCStatsCollector::CreateReportFilteredBySelector(
bool filter_by_sender_selector,
rtc::scoped_refptr<const RTCStatsReport> report,
rtc::scoped_refptr<RtpSenderInternal> sender_selector,
@ -1258,40 +1261,40 @@ rtc::scoped_refptr<RTCStatsReport> CreateReportFilteredBySelector(
if (filter_by_sender_selector) {
// Filter mode: RTCStatsCollector::RequestInfo::kSenderSelector
if (sender_selector) {
// Find outbound-rtp(s) of the sender, i.e. the outbound-rtp(s) that
// reference the sender stats.
// Because we do not implement sender stats, we look at outbound-rtp(s)
// that reference the track attachment stats for the sender instead.
std::string track_id =
DEPRECATED_RTCMediaStreamTrackStatsIDFromDirectionAndAttachment(
kDirectionOutbound, sender_selector->AttachmentId());
for (const auto& stats : *report) {
if (stats.type() != RTCOutboundRTPStreamStats::kType)
continue;
const auto& outbound_rtp = stats.cast_to<RTCOutboundRTPStreamStats>();
if (outbound_rtp.track_id.is_defined() &&
*outbound_rtp.track_id == track_id) {
rtpstream_ids.push_back(outbound_rtp.id());
// Find outbound-rtp(s) of the sender using ssrc lookup.
auto encodings = sender_selector->GetParametersInternal().encodings;
for (const auto* outbound_rtp :
report->GetStatsOfType<RTCOutboundRTPStreamStats>()) {
RTC_DCHECK(outbound_rtp->ssrc.is_defined());
auto it = std::find_if(
encodings.begin(), encodings.end(),
[ssrc =
*outbound_rtp->ssrc](const RtpEncodingParameters& encoding) {
return encoding.ssrc.has_value() && encoding.ssrc.value() == ssrc;
});
if (it != encodings.end()) {
rtpstream_ids.push_back(outbound_rtp->id());
}
}
}
} else {
// Filter mode: RTCStatsCollector::RequestInfo::kReceiverSelector
if (receiver_selector) {
// Find inbound-rtp(s) of the receiver, i.e. the inbound-rtp(s) that
// reference the receiver stats.
// Because we do not implement receiver stats, we look at inbound-rtp(s)
// that reference the track attachment stats for the receiver instead.
std::string track_id =
DEPRECATED_RTCMediaStreamTrackStatsIDFromDirectionAndAttachment(
kDirectionInbound, receiver_selector->AttachmentId());
for (const auto& stats : *report) {
if (stats.type() != RTCInboundRTPStreamStats::kType)
continue;
const auto& inbound_rtp = stats.cast_to<RTCInboundRTPStreamStats>();
if (inbound_rtp.track_id.is_defined() &&
*inbound_rtp.track_id == track_id) {
rtpstream_ids.push_back(inbound_rtp.id());
// Find the inbound-rtp of the receiver using ssrc lookup.
absl::optional<uint32_t> ssrc;
worker_thread_->BlockingCall([&] {
auto encodings = receiver_selector->GetParameters().encodings;
if (!encodings.empty()) {
ssrc = encodings[0].ssrc;
}
});
if (ssrc.has_value()) {
for (const auto* inbound_rtp :
report->GetStatsOfType<RTCInboundRTPStreamStats>()) {
RTC_DCHECK(inbound_rtp->ssrc.is_defined());
if (*inbound_rtp->ssrc == *ssrc) {
rtpstream_ids.push_back(inbound_rtp->id());
}
}
}
}
@ -1301,8 +1304,6 @@ rtc::scoped_refptr<RTCStatsReport> CreateReportFilteredBySelector(
return TakeReferencedStats(report->Copy(), rtpstream_ids);
}
} // namespace
RTCStatsCollector::CertificateStatsPair
RTCStatsCollector::CertificateStatsPair::Copy() const {
CertificateStatsPair copy;

6
pc/rtc_stats_collector.h
View File

@ -244,6 +244,12 @@ class RTCStatsCollector : public rtc::RefCountInterface,
// This is a NO-OP if `network_report_` is null.
void MergeNetworkReport_s();
rtc::scoped_refptr<RTCStatsReport> CreateReportFilteredBySelector(
bool filter_by_sender_selector,
rtc::scoped_refptr<const RTCStatsReport> report,
rtc::scoped_refptr<RtpSenderInternal> sender_selector,
rtc::scoped_refptr<RtpReceiverInternal> receiver_selector);
// Slots for signals (sigslot) that are wired up to `pc_`.
void OnSctpDataChannelCreated(SctpDataChannel* channel);
// Slots for signals (sigslot) that are wired up to `channel`.

5
pc/rtc_stats_collector_unittest.cc
View File

@ -388,7 +388,10 @@ rtc::scoped_refptr<MockRtpSenderInternal> CreateMockSender(
EXPECT_CALL(*sender, track()).WillRepeatedly(Return(track));
EXPECT_CALL(*sender, ssrc()).WillRepeatedly(Return(ssrc));
EXPECT_CALL(*sender, media_type()).WillRepeatedly(Return(media_type));
EXPECT_CALL(*sender, GetParameters()).WillRepeatedly(Invoke([ssrc]() {
EXPECT_CALL(*sender, GetParameters())
.WillRepeatedly(
Invoke([s = sender.get()]() { return s->GetParametersInternal(); }));
EXPECT_CALL(*sender, GetParametersInternal()).WillRepeatedly(Invoke([ssrc]() {
RtpParameters params;
params.encodings.push_back(RtpEncodingParameters());
params.encodings[0].ssrc = ssrc;