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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/mirroring/service/openscreen_stats_client.h"
#include <stdint.h>
#include "base/format_macros.h"
#include "base/strings/stringprintf.h"
#include "media/cast/logging/stats_event_subscriber.h"
namespace mirroring {
namespace {
media::cast::StatsEventSubscriber::CastStat StatisticTypeToCastStat(
const openscreen::cast::StatisticType& stat_type) {
switch (stat_type) {
case openscreen::cast::StatisticType::kEnqueueFps:
return media::cast::StatsEventSubscriber::CastStat::ENQUEUE_FPS;
case openscreen::cast::StatisticType::kAvgCaptureLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
AVG_CAPTURE_LATENCY_MS;
case openscreen::cast::StatisticType::kAvgEncodeTimeMs:
return media::cast::StatsEventSubscriber::CastStat::AVG_ENCODE_TIME_MS;
case openscreen::cast::StatisticType::kAvgQueueingLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
AVG_QUEUEING_LATENCY_MS;
case openscreen::cast::StatisticType::kAvgNetworkLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
AVG_NETWORK_LATENCY_MS;
case openscreen::cast::StatisticType::kAvgPacketLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::AVG_PACKET_LATENCY_MS;
case openscreen::cast::StatisticType::kAvgFrameLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::AVG_FRAME_LATENCY_MS;
case openscreen::cast::StatisticType::kAvgEndToEndLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::AVG_E2E_LATENCY_MS;
case openscreen::cast::StatisticType::kEncodeRateKbps:
return media::cast::StatsEventSubscriber::CastStat::ENCODE_KBPS;
case openscreen::cast::StatisticType::kPacketTransmissionRateKbps:
return media::cast::StatsEventSubscriber::CastStat::TRANSMISSION_KBPS;
case openscreen::cast::StatisticType::kTimeSinceLastReceiverResponseMs:
return media::cast::StatsEventSubscriber::CastStat::
MS_SINCE_LAST_RECEIVER_RESPONSE;
case openscreen::cast::StatisticType::kNumFramesCaptured:
return media::cast::StatsEventSubscriber::CastStat::NUM_FRAMES_CAPTURED;
case openscreen::cast::StatisticType::kNumFramesDroppedByEncoder:
return media::cast::StatsEventSubscriber::CastStat::
NUM_FRAMES_DROPPED_BY_ENCODER;
case openscreen::cast::StatisticType::kNumLateFrames:
return media::cast::StatsEventSubscriber::CastStat::NUM_FRAMES_LATE;
case openscreen::cast::StatisticType::kNumPacketsSent:
return media::cast::StatsEventSubscriber::CastStat::NUM_PACKETS_SENT;
case openscreen::cast::StatisticType::kNumPacketsReceived:
return media::cast::StatsEventSubscriber::CastStat::NUM_PACKETS_RECEIVED;
case openscreen::cast::StatisticType::kFirstEventTimeMs:
return media::cast::StatsEventSubscriber::CastStat::FIRST_EVENT_TIME_MS;
case openscreen::cast::StatisticType::kLastEventTimeMs:
return media::cast::StatsEventSubscriber::CastStat::LAST_EVENT_TIME_MS;
default:
return media::cast::StatsEventSubscriber::CastStat::
UNKNOWN_OPEN_SCREEN_STAT;
}
}
media::cast::StatsEventSubscriber::CastStat HistogramTypeToCastStat(
const openscreen::cast::HistogramType& histogram_type) {
switch (histogram_type) {
case openscreen::cast::HistogramType::kCaptureLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
CAPTURE_LATENCY_MS_HISTO;
case openscreen::cast::HistogramType::kEncodeTimeMs:
return media::cast::StatsEventSubscriber::CastStat::ENCODE_TIME_MS_HISTO;
case openscreen::cast::HistogramType::kQueueingLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
QUEUEING_LATENCY_MS_HISTO;
case openscreen::cast::HistogramType::kNetworkLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
NETWORK_LATENCY_MS_HISTO;
case openscreen::cast::HistogramType::kPacketLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::
PACKET_LATENCY_MS_HISTO;
case openscreen::cast::HistogramType::kEndToEndLatencyMs:
return media::cast::StatsEventSubscriber::CastStat::E2E_LATENCY_MS_HISTO;
case openscreen::cast::HistogramType::kFrameLatenessMs:
return media::cast::StatsEventSubscriber::CastStat::LATE_FRAME_MS_HISTO;
default:
return media::cast::StatsEventSubscriber::CastStat::
UNKNOWN_OPEN_SCREEN_HISTO;
}
}
} // namespace
OpenscreenStatsClient::OpenscreenStatsClient() = default;
OpenscreenStatsClient::~OpenscreenStatsClient() = default;
base::Value::Dict OpenscreenStatsClient::GetStats() const {
return most_recent_stats_.Clone();
}
base::Value::Dict OpenscreenStatsClient::ConvertSenderStatsToDict(
const openscreen::cast::SenderStats& updated_stats) const {
base::Value::Dict ret;
base::Value::Dict audio_stats =
ConvertStatisticsListToDict(updated_stats.audio_statistics);
audio_stats.Merge(
ConvertHistogramsListToDict(updated_stats.audio_histograms));
ret.Set(media::cast::StatsEventSubscriber::kAudioStatsDictKey,
std::move(audio_stats));
base::Value::Dict video_stats =
ConvertStatisticsListToDict(updated_stats.video_statistics);
video_stats.Merge(
ConvertHistogramsListToDict(updated_stats.video_histograms));
ret.Set(media::cast::StatsEventSubscriber::kVideoStatsDictKey,
std::move(video_stats));
return ret;
}
base::Value::Dict OpenscreenStatsClient::ConvertStatisticsListToDict(
const openscreen::cast::SenderStats::StatisticsList& stats_list) const {
base::Value::Dict ret;
for (std::size_t i = 0; i < stats_list.size(); ++i) {
const char* key = media::cast::StatsEventSubscriber::CastStatToString(
StatisticTypeToCastStat(
static_cast<openscreen::cast::StatisticType>(i)));
if (std::isfinite(stats_list[i])) {
ret.Set(key, stats_list[i]);
} else {
ret.Set(key, "null");
}
}
return ret;
}
base::Value::Dict OpenscreenStatsClient::ConvertHistogramsListToDict(
const openscreen::cast::SenderStats::HistogramsList& histograms_list)
const {
base::Value::Dict ret;
for (std::size_t i = 0; i < histograms_list.size(); ++i) {
ret.Set(media::cast::StatsEventSubscriber::CastStatToString(
HistogramTypeToCastStat(
static_cast<openscreen::cast::HistogramType>(i))),
ConvertOpenscreenHistogramToList(histograms_list[i]));
}
return ret;
}
base::Value::List OpenscreenStatsClient::ConvertOpenscreenHistogramToList(
const openscreen::cast::SimpleHistogram& histogram) const {
// If there are no buckets then we return an empty list.
if (histogram.buckets.empty()) {
return base::Value::List();
}
base::Value::List histo;
if (histogram.buckets.front()) {
base::Value::Dict bucket;
bucket.Set(base::StringPrintf("<%" PRId64, histogram.min),
histogram.buckets.front());
histo.Append(std::move(bucket));
}
for (std::size_t i = 1; i < histogram.buckets.size() - 1; ++i) {
if (!histogram.buckets[i]) {
continue;
}
base::Value::Dict bucket;
int64_t lower = histogram.min + (i - 1) * histogram.width;
int64_t upper = lower + histogram.width - 1;
bucket.Set(base::StringPrintf("%" PRId64 "-%" PRId64, lower, upper),
histogram.buckets[i]);
histo.Append(std::move(bucket));
}
if (histogram.buckets.back()) {
base::Value::Dict bucket;
bucket.Set(base::StringPrintf(">=%" PRId64, histogram.max),
histogram.buckets.back());
histo.Append(std::move(bucket));
}
return histo;
}
void OpenscreenStatsClient::OnStatisticsUpdated(
const openscreen::cast::SenderStats& updated_stats) {
most_recent_stats_ = ConvertSenderStatsToDict(std::move(updated_stats));
}
} // namespace mirroring
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