webrtc/api/video_codecs/scalability_mode_helper.h
Florent Castelli 8037fc6ffa Migrate absl::optional to std::optional
Bug: webrtc:342905193
No-Try: True
Change-Id: Icc968be43b8830038ea9a1f5f604307220457807
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/361021
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42911}
2024-09-02 12:16:47 +00:00

38 lines
1.4 KiB
C++

/*
* Copyright (c) 2022 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.
*/
#ifndef API_VIDEO_CODECS_SCALABILITY_MODE_HELPER_H_
#define API_VIDEO_CODECS_SCALABILITY_MODE_HELPER_H_
#include <optional>
#include "absl/strings/string_view.h"
#include "api/video_codecs/scalability_mode.h"
namespace webrtc {
// Returns the number of spatial layers from the `scalability_mode_string`
// or nullopt if the given mode is unknown.
std::optional<int> ScalabilityModeStringToNumSpatialLayers(
absl::string_view scalability_mode_string);
// Returns the number of temporal layers from the `scalability_mode_string`
// or nullopt if the given mode is unknown.
std::optional<int> ScalabilityModeStringToNumTemporalLayers(
absl::string_view scalability_mode_string);
// Convert the `scalability_mode_string` to the scalability mode enum value
// or nullopt if the given mode is unknown.
std::optional<ScalabilityMode> ScalabilityModeStringToEnum(
absl::string_view scalability_mode_string);
} // namespace webrtc
#endif // API_VIDEO_CODECS_SCALABILITY_MODE_HELPER_H_