From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../encoder/rtc_event_log_encoder_common.cc | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 third_party/libwebrtc/logging/rtc_event_log/encoder/rtc_event_log_encoder_common.cc (limited to 'third_party/libwebrtc/logging/rtc_event_log/encoder/rtc_event_log_encoder_common.cc') diff --git a/third_party/libwebrtc/logging/rtc_event_log/encoder/rtc_event_log_encoder_common.cc b/third_party/libwebrtc/logging/rtc_event_log/encoder/rtc_event_log_encoder_common.cc new file mode 100644 index 0000000000..7aea47611d --- /dev/null +++ b/third_party/libwebrtc/logging/rtc_event_log/encoder/rtc_event_log_encoder_common.cc @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "logging/rtc_event_log/encoder/rtc_event_log_encoder_common.h" + +#include "rtc_base/checks.h" + +namespace webrtc { +namespace { +// We use 0x3fff because that gives decent precision (compared to the underlying +// measurement producing the packet loss fraction) on the one hand, while +// allowing us to use no more than 2 bytes in varint form on the other hand. +// (We might also fixed-size encode using at most 14 bits.) +constexpr uint32_t kPacketLossFractionRange = (1 << 14) - 1; // 0x3fff +constexpr float kPacketLossFractionRangeFloat = + static_cast(kPacketLossFractionRange); +} // namespace + +uint32_t ConvertPacketLossFractionToProtoFormat(float packet_loss_fraction) { + RTC_DCHECK_GE(packet_loss_fraction, 0); + RTC_DCHECK_LE(packet_loss_fraction, 1); + return static_cast(packet_loss_fraction * kPacketLossFractionRange); +} + +bool ParsePacketLossFractionFromProtoFormat(uint32_t proto_packet_loss_fraction, + float* output) { + if (proto_packet_loss_fraction >= kPacketLossFractionRange) { + return false; + } + *output = proto_packet_loss_fraction / kPacketLossFractionRangeFloat; + return true; +} +} // namespace webrtc -- cgit v1.2.3