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Adds Clamping functions for DataRate.

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This is quite useful in many places where we need to restrict the range
of a DataRate. It makes it easier to read the intention than with:
value_ = std::max(some_lower_limit, std::min(value_, some_upper_limit));

The naming follows the naming for rtc::SafeClamp.

Bug: webrtc:9709
Change-Id: I08e05197acec325d85babd2a06806a8667f2fcb1
Reviewed-on: https://webrtc-review.googlesource.com/c/104040
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25023}
This commit is contained in:
Sebastian Jansson
2018-10-05 13:23:57 +02:00
committed by Commit Bot
parent b88fe025b7
commit 6c19decc14
2 changed files with 27 additions and 0 deletions
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7
api/units/data_rate.h
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@ -16,6 +16,7 @@
#endif // UNIT_TEST
#include <stdint.h>
#include <algorithm>
#include <cmath>
#include <limits>
#include <string>
@ -133,6 +134,12 @@ class DataRate {
return bits_per_sec_ == data_rate_impl::kPlusInfinityVal;
}
constexpr bool IsFinite() const { return !IsInfinite(); }
DataRate Clamped(DataRate min_rate, DataRate max_rate) const {
return std::max(min_rate, std::min(*this, max_rate));
}
void Clamp(DataRate min_rate, DataRate max_rate) {
*this = Clamped(min_rate, max_rate);
}
DataRate operator-(const DataRate& other) const {
return DataRate::bps(bps() - other.bps());
}