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Add harmonic frame rate metric to the PC level test framework

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Bug: webrtc:11348
Change-Id: I4dd0cabbaee2d4b5e2dd4fa4398b3d7c0beaa3eb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168401
Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30492}
This commit is contained in:
Artem Titov
2020-02-10 11:17:35 +01:00
committed by Commit Bot
parent 0c626afcf3
commit 1ca6bdbbdb
2 changed files with 25 additions and 4 deletions
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22
test/pc/e2e/analyzer/video/default_video_quality_analyzer.cc
View File

@ -635,6 +635,23 @@ void DefaultVideoQualityAnalyzer::ReportResults(
const FrameCounters& frame_counters) {
using ::webrtc::test::ImproveDirection;
double sum_squared_interframe_delays_secs = 0;
for (const double interframe_delay_ms :
stats.time_between_rendered_frames_ms.GetSamples()) {
const double interframe_delays_secs = interframe_delay_ms / 1000.0;
// Sum of squared inter frame intervals is used to calculate the harmonic
// frame rate metric. The metric aims to reflect overall experience related
// to smoothness of video playback and includes both freezes and pauses.
sum_squared_interframe_delays_secs +=
interframe_delays_secs * interframe_delays_secs;
}
double harmonic_framerate_fps = 0;
if (sum_squared_interframe_delays_secs > 0.0) {
TimeDelta video_duration = Now() - start_time_;
harmonic_framerate_fps =
video_duration.seconds() / sum_squared_interframe_delays_secs;
}
ReportResult("psnr", test_case_name, stats.psnr, "dB",
ImproveDirection::kBiggerIsBetter);
ReportResult("ssim", test_case_name, stats.ssim, "unitless",
@ -647,11 +664,14 @@ void DefaultVideoQualityAnalyzer::ReportResults(
ReportResult("time_between_rendered_frames", test_case_name,
stats.time_between_rendered_frames_ms, "ms",
ImproveDirection::kSmallerIsBetter);
test::PrintResult("harmonic_framerate", "", test_case_name,
harmonic_framerate_fps, "Hz", /*important=*/false,
ImproveDirection::kBiggerIsBetter);
test::PrintResult("encode_frame_rate", "", test_case_name,
stats.encode_frame_rate.IsEmpty()
? 0
: stats.encode_frame_rate.GetEventsPerSecond(),
"fps", /*important=*/false,
"Hz", /*important=*/false,
ImproveDirection::kBiggerIsBetter);
ReportResult("encode_time", test_case_name, stats.encode_time_ms, "ms",
ImproveDirection::kSmallerIsBetter);

7
test/pc/e2e/analyzer/video/default_video_quality_analyzer.h
View File

@ -242,9 +242,10 @@ class DefaultVideoQualityAnalyzer : public VideoQualityAnalyzerInterface {
void ReportResults();
static void ReportVideoBweResults(const std::string& test_case_name,
const VideoBweStats& video_bwe_stats);
static void ReportResults(const std::string& test_case_name,
const StreamStats& stats,
const FrameCounters& frame_counters);
void ReportResults(const std::string& test_case_name,
const StreamStats& stats,
const FrameCounters& frame_counters)
RTC_EXCLUSIVE_LOCKS_REQUIRED(lock_);
// Report result for single metric for specified stream.
static void ReportResult(const std::string& metric_name,
const std::string& test_case_name,