commit e6787fd56d89a5aaedcd16b1688e3af3ed959c27
parent 8f0aa2f6e52ac8180cc6ae7b4f82d9b2a86a90ac
Author: Dan Baker <dbaker@mozilla.com>
Date: Mon, 27 Oct 2025 14:48:49 -0600
Bug 1995393 - Vendor libwebrtc from 98db746a35
Upstream commit: https://webrtc.googlesource.com/src/+/98db746a3574f174141a810e0fc3b6603bba2e93
Remove use of TimeMillis in EncoderOvershootDetectorTest
The EncoderOvershootDetector already takes the time as input, so no need
to change any injection.
Bug: webrtc:42223992
Change-Id: Ie8a6e1fe5c1816aed35672883a43e4e957a68f58
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/406762
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
Auto-Submit: Evan Shrubsole <eshr@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#45471}
Diffstat:
2 files changed, 49 insertions(+), 41 deletions(-)
diff --git a/third_party/libwebrtc/README.mozilla.last-vendor b/third_party/libwebrtc/README.mozilla.last-vendor
@@ -1,4 +1,4 @@
# ./mach python dom/media/webrtc/third_party_build/vendor-libwebrtc.py --from-local /Users/danielbaker/elm/.moz-fast-forward/moz-libwebrtc --commit mozpatches libwebrtc
-libwebrtc updated from /Users/danielbaker/elm/.moz-fast-forward/moz-libwebrtc commit mozpatches on 2025-10-27T20:46:12.462085+00:00.
+libwebrtc updated from /Users/danielbaker/elm/.moz-fast-forward/moz-libwebrtc commit mozpatches on 2025-10-27T20:48:36.482443+00:00.
# base of lastest vendoring
-0e582e5b50
+98db746a35
diff --git a/third_party/libwebrtc/video/encoder_overshoot_detector_unittest.cc b/third_party/libwebrtc/video/encoder_overshoot_detector_unittest.cc
@@ -18,9 +18,9 @@
#include "api/units/data_size.h"
#include "api/units/frequency.h"
#include "api/units/time_delta.h"
+#include "api/units/timestamp.h"
#include "api/video/video_codec_type.h"
-#include "rtc_base/fake_clock.h"
-#include "rtc_base/time_utils.h"
+#include "system_wrappers/include/clock.h"
#include "system_wrappers/include/metrics.h"
#include "test/gtest.h"
@@ -60,7 +60,7 @@ class EncoderOvershootDetectorTest : public TestWithParam<TestParams> {
static constexpr int kDefaultBitrateBps = 300000;
static constexpr double kDefaultFrameRateFps = 15;
EncoderOvershootDetectorTest()
- : detector_(kWindowSizeMs,
+ : detector_(kWindowSize.ms(),
GetParam().codec_type,
GetParam().is_screenshare),
target_bitrate_(DataRate::BitsPerSec(kDefaultBitrateBps)),
@@ -71,42 +71,42 @@ class EncoderOvershootDetectorTest : public TestWithParam<TestParams> {
void RunConstantUtilizationTest(double actual_utilization_factor,
double expected_utilization_factor,
double allowed_error,
- int64_t test_duration_ms) {
+ TimeDelta test_duration) {
const int frame_size_bytes =
static_cast<int>(actual_utilization_factor *
(target_bitrate_.bps() / target_framerate_fps_) / 8);
detector_.SetTargetRate(target_bitrate_, target_framerate_fps_,
- TimeMillis());
+ clock_.TimeInMilliseconds());
- if (TimeMillis() == 0) {
+ if (clock_.TimeInMilliseconds() == 0) {
// Encode a first frame which by definition has no overuse factor.
- detector_.OnEncodedFrame(frame_size_bytes, TimeMillis());
+ detector_.OnEncodedFrame(frame_size_bytes, clock_.TimeInMilliseconds());
clock_.AdvanceTime(TimeDelta::Seconds(1) / target_framerate_fps_);
}
- int64_t runtime_us = 0;
- while (runtime_us < test_duration_ms * 1000) {
- detector_.OnEncodedFrame(frame_size_bytes, TimeMillis());
- runtime_us += kNumMicrosecsPerSec / target_framerate_fps_;
+ TimeDelta runtime = TimeDelta::Zero();
+ while (runtime < test_duration) {
+ detector_.OnEncodedFrame(frame_size_bytes, clock_.TimeInMilliseconds());
+ runtime += TimeDelta::Seconds(1) / target_framerate_fps_;
clock_.AdvanceTime(TimeDelta::Seconds(1) / target_framerate_fps_);
}
// At constant utilization, both network and media utilization should be
// close to expected.
const std::optional<double> network_utilization_factor =
- detector_.GetNetworkRateUtilizationFactor(TimeMillis());
+ detector_.GetNetworkRateUtilizationFactor(clock_.TimeInMilliseconds());
EXPECT_NEAR(network_utilization_factor.value_or(-1),
expected_utilization_factor, allowed_error);
const std::optional<double> media_utilization_factor =
- detector_.GetMediaRateUtilizationFactor(TimeMillis());
+ detector_.GetMediaRateUtilizationFactor(clock_.TimeInMilliseconds());
EXPECT_NEAR(media_utilization_factor.value_or(-1),
expected_utilization_factor, allowed_error);
}
- static constexpr int64_t kWindowSizeMs = 3000;
+ static constexpr TimeDelta kWindowSize = TimeDelta::Millis(3000);
EncoderOvershootDetector detector_;
- ScopedFakeClock clock_;
+ SimulatedClock clock_{Timestamp::Millis(12345)};
DataRate target_bitrate_;
double target_framerate_fps_;
};
@@ -114,63 +114,67 @@ class EncoderOvershootDetectorTest : public TestWithParam<TestParams> {
TEST_P(EncoderOvershootDetectorTest, NoUtilizationIfNoRate) {
const int frame_size_bytes = 1000;
const int64_t time_interval_ms = 33;
- detector_.SetTargetRate(target_bitrate_, target_framerate_fps_, TimeMillis());
+ detector_.SetTargetRate(target_bitrate_, target_framerate_fps_,
+ clock_.TimeInMilliseconds());
// No data points, can't determine overshoot rate.
EXPECT_FALSE(
- detector_.GetNetworkRateUtilizationFactor(TimeMillis()).has_value());
+ detector_.GetNetworkRateUtilizationFactor(clock_.TimeInMilliseconds())
+ .has_value());
- detector_.OnEncodedFrame(frame_size_bytes, TimeMillis());
+ detector_.OnEncodedFrame(frame_size_bytes, clock_.TimeInMilliseconds());
clock_.AdvanceTime(TimeDelta::Millis(time_interval_ms));
EXPECT_TRUE(
- detector_.GetNetworkRateUtilizationFactor(TimeMillis()).has_value());
+ detector_.GetNetworkRateUtilizationFactor(clock_.TimeInMilliseconds())
+ .has_value());
}
TEST_P(EncoderOvershootDetectorTest, OptimalSize) {
// Optimally behaved encoder.
// Allow some error margin due to rounding errors, eg due to frame
// interval not being an integer.
- RunConstantUtilizationTest(1.0, 1.0, 0.01, kWindowSizeMs);
+ RunConstantUtilizationTest(1.0, 1.0, 0.01, kWindowSize);
}
TEST_P(EncoderOvershootDetectorTest, Undershoot) {
// Undershoot, reported utilization factor should be capped to 1.0 so
// that we don't incorrectly boost encoder bitrate during movement.
- RunConstantUtilizationTest(0.5, 1.0, 0.00, kWindowSizeMs);
+ RunConstantUtilizationTest(0.5, 1.0, 0.00, kWindowSize);
}
TEST_P(EncoderOvershootDetectorTest, Overshoot) {
// Overshoot by 20%.
// Allow some error margin due to rounding errors.
- RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSizeMs);
+ RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSize);
}
TEST_P(EncoderOvershootDetectorTest, ConstantOvershootVaryingRates) {
// Overshoot by 20%, but vary framerate and bitrate.
// Allow some error margin due to rounding errors.
- RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSizeMs);
+ RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSize);
target_framerate_fps_ /= 2;
- RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSizeMs / 2);
+ RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSize / 2);
target_bitrate_ = DataRate::BitsPerSec(target_bitrate_.bps() / 2);
- RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSizeMs / 2);
+ RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSize / 2);
}
TEST_P(EncoderOvershootDetectorTest, ConstantRateVaryingOvershoot) {
// Overshoot by 10%, keep framerate and bitrate constant.
// Allow some error margin due to rounding errors.
- RunConstantUtilizationTest(1.1, 1.1, 0.01, kWindowSizeMs);
+ RunConstantUtilizationTest(1.1, 1.1, 0.01, kWindowSize);
// Change overshoot to 20%, run for half window and expect overshoot
// to be 15%.
- RunConstantUtilizationTest(1.2, 1.15, 0.01, kWindowSizeMs / 2);
+ RunConstantUtilizationTest(1.2, 1.15, 0.01, kWindowSize / 2);
// Keep running at 20% overshoot, after window is full that should now
// be the reported overshoot.
- RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSizeMs / 2);
+ RunConstantUtilizationTest(1.2, 1.2, 0.01, kWindowSize / 2);
}
TEST_P(EncoderOvershootDetectorTest, PartialOvershoot) {
const int ideal_frame_size_bytes =
(target_bitrate_.bps() / target_framerate_fps_) / 8;
- detector_.SetTargetRate(target_bitrate_, target_framerate_fps_, TimeMillis());
+ detector_.SetTargetRate(target_bitrate_, target_framerate_fps_,
+ clock_.TimeInMilliseconds());
// Test scenario with average bitrate matching the target bitrate, but
// with some utilization factor penalty as the frames can't be paced out
@@ -182,32 +186,34 @@ TEST_P(EncoderOvershootDetectorTest, PartialOvershoot) {
// 4) 20% undershoot, no penalty.
// On average then utilization penalty is thus 5%.
- int64_t runtime_us = 0;
+ TimeDelta runtime = TimeDelta::Zero();
int i = 0;
- while (runtime_us < kWindowSizeMs * kNumMicrosecsPerMillisec) {
- runtime_us += kNumMicrosecsPerSec / target_framerate_fps_;
+ while (runtime < kWindowSize) {
+ runtime += TimeDelta::Seconds(1) / target_framerate_fps_;
clock_.AdvanceTime(TimeDelta::Seconds(1) / target_framerate_fps_);
int frame_size_bytes = (i++ % 4 < 2) ? (ideal_frame_size_bytes * 120) / 100
: (ideal_frame_size_bytes * 80) / 100;
- detector_.OnEncodedFrame(frame_size_bytes, TimeMillis());
+ detector_.OnEncodedFrame(frame_size_bytes, clock_.TimeInMilliseconds());
}
// Expect 5% overshoot for network rate, see above.
const std::optional<double> network_utilization_factor =
- detector_.GetNetworkRateUtilizationFactor(TimeMillis());
+ detector_.GetNetworkRateUtilizationFactor(clock_.TimeInMilliseconds());
EXPECT_NEAR(network_utilization_factor.value_or(-1), 1.05, 0.01);
// Expect media rate to be on average correct.
const std::optional<double> media_utilization_factor =
- detector_.GetMediaRateUtilizationFactor(TimeMillis());
+ detector_.GetMediaRateUtilizationFactor(clock_.TimeInMilliseconds());
EXPECT_NEAR(media_utilization_factor.value_or(-1), 1.00, 0.01);
}
TEST_P(EncoderOvershootDetectorTest, RecordsZeroErrorMetricWithNoOvershoot) {
DataSize ideal_frame_size =
target_bitrate_ / Frequency::Hertz(target_framerate_fps_);
- detector_.SetTargetRate(target_bitrate_, target_framerate_fps_, TimeMillis());
- detector_.OnEncodedFrame(ideal_frame_size.bytes(), TimeMillis());
+ detector_.SetTargetRate(target_bitrate_, target_framerate_fps_,
+ clock_.TimeInMilliseconds());
+ detector_.OnEncodedFrame(ideal_frame_size.bytes(),
+ clock_.TimeInMilliseconds());
detector_.Reset();
const VideoCodecType codec = GetParam().codec_type;
@@ -238,8 +244,10 @@ TEST_P(EncoderOvershootDetectorTest,
target_bitrate_ / Frequency::Hertz(target_framerate_fps_);
// Use target frame size with 50% overshoot.
DataSize target_frame_size = ideal_frame_size * 3 / 2;
- detector_.SetTargetRate(target_bitrate_, target_framerate_fps_, TimeMillis());
- detector_.OnEncodedFrame(target_frame_size.bytes(), TimeMillis());
+ detector_.SetTargetRate(target_bitrate_, target_framerate_fps_,
+ clock_.TimeInMilliseconds());
+ detector_.OnEncodedFrame(target_frame_size.bytes(),
+ clock_.TimeInMilliseconds());
detector_.Reset();
const VideoCodecType codec = GetParam().codec_type;
