Source code
Revision control
Copy as Markdown
Other Tools
/*
* 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 "absl/strings/string_view.h"
#include "absl/types/optional.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.
absl::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.
absl::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.
absl::optional<ScalabilityMode> ScalabilityModeStringToEnum(
absl::string_view scalability_mode_string);
} // namespace webrtc
#endif // API_VIDEO_CODECS_SCALABILITY_MODE_HELPER_H_