a4d873786f
This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef LOGGING_RTC_EVENT_LOG_ENCODER_DELTA_ENCODING_H_
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#define LOGGING_RTC_EVENT_LOG_ENCODER_DELTA_ENCODING_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include "absl/types/optional.h"
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namespace webrtc {
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// Encode |values| as a sequence of deltas following on |base| and return it.
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// If all of the values were equal to the base, an empty string will be
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// returned; this is a valid encoding of that edge case.
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// |base| is not guaranteed to be written into |output|, and must therefore
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// be provided separately to the decoder.
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// This function never fails.
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// TODO(eladalon): Split into optional and non-optional variants (efficiency).
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std::string EncodeDeltas(absl::optional<uint64_t> base,
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const std::vector<absl::optional<uint64_t>>& values);
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// EncodeDeltas() and DecodeDeltas() are inverse operations;
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// invoking DecodeDeltas() over the output of EncodeDeltas(), will return
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// the input originally given to EncodeDeltas().
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// |num_of_deltas| must be greater than zero. If input is not a valid encoding
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// of |num_of_deltas| elements based on |base|, the function returns an empty
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// vector, which signals an error.
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// TODO(eladalon): Split into optional and non-optional variants (efficiency).
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std::vector<absl::optional<uint64_t>> DecodeDeltas(
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const std::string& input,
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absl::optional<uint64_t> base,
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size_t num_of_deltas);
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} // namespace webrtc
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#endif // LOGGING_RTC_EVENT_LOG_ENCODER_DELTA_ENCODING_H_
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