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Migrate RemoteNtpTimeEstimator to more precise time representations

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Reland of https://webrtc-review.googlesource.com/c/src/+/261311

Bug: webrtc:13757
Change-Id: I34a58100b8fadfe3dbea9ffce71829b7670daad8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261726
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36838}
This commit is contained in:
Danil Chapovalov
2022-05-10 11:33:20 +02:00
committed by WebRTC LUCI CQ
parent bf2d75d86f
commit edcb25b623
9 changed files with 172 additions and 117 deletions
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16
modules/rtp_rtcp/source/time_util_unittest.cc
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@ -95,4 +95,20 @@ TEST(TimeUtilTest, SaturatedToCompactNtp) {
5'515, 16);
}
TEST(TimeUtilTest, ToNtpUnits) {
EXPECT_EQ(ToNtpUnits(TimeDelta::Zero()), 0);
EXPECT_EQ(ToNtpUnits(TimeDelta::Seconds(1)), int64_t{1} << 32);
EXPECT_EQ(ToNtpUnits(TimeDelta::Seconds(-1)), -(int64_t{1} << 32));
EXPECT_EQ(ToNtpUnits(TimeDelta::Millis(500)), int64_t{1} << 31);
EXPECT_EQ(ToNtpUnits(TimeDelta::Millis(-1'500)), -(int64_t{3} << 31));
// Smallest TimeDelta that can be converted without precision loss.
EXPECT_EQ(ToNtpUnits(TimeDelta::Micros(15'625)), int64_t{1} << 26);
// 1 us ~= 4'294.97 NTP units. ToNtpUnits makes no rounding promises.
EXPECT_GE(ToNtpUnits(TimeDelta::Micros(1)), 4'294);
EXPECT_LE(ToNtpUnits(TimeDelta::Micros(1)), 4'295);
}
} // namespace webrtc