63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
/*
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* Copyright (c) 2014 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 VIDEO_CONFIG_SIMULCAST_H_
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#define VIDEO_CONFIG_SIMULCAST_H_
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#include <stddef.h>
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#include <vector>
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#include "api/array_view.h"
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#include "api/field_trials_view.h"
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#include "api/units/data_rate.h"
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#include "api/video/resolution.h"
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#include "video/config/video_encoder_config.h"
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namespace webrtc {
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// Gets the total maximum bitrate for the `streams`.
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DataRate GetTotalMaxBitrate(const std::vector<VideoStream>& streams);
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// Adds any bitrate of `max_bitrate` that is above the total maximum bitrate for
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// the `layers` to the highest quality layer.
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void BoostMaxSimulcastLayer(DataRate max_bitrate,
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std::vector<VideoStream>* layers);
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// Returns number of simulcast streams. The value depends on the resolution and
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// is restricted to the range from `min_num_layers` to `max_num_layers`,
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// inclusive.
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size_t LimitSimulcastLayerCount(size_t min_num_layers,
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size_t max_num_layers,
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int width,
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int height,
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const FieldTrialsView& trials,
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VideoCodecType codec);
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// Gets simulcast settings.
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std::vector<VideoStream> GetSimulcastConfig(
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rtc::ArrayView<const Resolution> resolutions,
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bool is_screenshare_with_conference_mode,
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bool temporal_layers_supported,
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const FieldTrialsView& trials,
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VideoCodecType codec);
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} // namespace webrtc
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// Re-export symbols from the webrtc namespace for backwards compatibility.
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// TODO(bugs.webrtc.org/4222596): Remove once all references are updated.
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namespace cricket {
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using ::webrtc::BoostMaxSimulcastLayer;
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using ::webrtc::GetSimulcastConfig;
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using ::webrtc::GetTotalMaxBitrate;
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using ::webrtc::LimitSimulcastLayerCount;
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} // namespace cricket
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#endif // VIDEO_CONFIG_SIMULCAST_H_
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