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Diffstat (limited to 'third_party/libwebrtc/api/video_codecs/scalability_mode_helper.h')
-rw-r--r-- | third_party/libwebrtc/api/video_codecs/scalability_mode_helper.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/video_codecs/scalability_mode_helper.h b/third_party/libwebrtc/api/video_codecs/scalability_mode_helper.h new file mode 100644 index 0000000000..21dcfc2f30 --- /dev/null +++ b/third_party/libwebrtc/api/video_codecs/scalability_mode_helper.h @@ -0,0 +1,37 @@ +/* + * 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_ |