simulcast_utility.h

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/*

 *  Copyright (c) 2018 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 MODULES_VIDEO_CODING_UTILITY_SIMULCAST_UTILITY_H_

#define MODULES_VIDEO_CODING_UTILITY_SIMULCAST_UTILITY_H_

#include <stdint.h>

#include "api/video_codecs/video_codec.h"

#include "rtc_base/system/rtc_export.h"

#include "video/config/video_encoder_config.h"

namespace webrtc {

class RTC_EXPORT SimulcastUtility {

 public:

  static uint32_t SumStreamMaxBitrate(int streams, const VideoCodec& codec);

  static int NumberOfSimulcastStreams(const VideoCodec& codec);

  static bool ValidSimulcastParameters(const VideoCodec& codec,

                                       int num_streams);

  static int NumberOfTemporalLayers(const VideoCodec& codec, int spatial_id);

  // TODO(sprang): Remove this hack when ScreenshareLayers is gone.

  static bool IsConferenceModeScreenshare(const VideoCodec& codec);

  static bool IsConferenceModeScreenshare(

      const VideoEncoderConfig& encoder_config);

};

}  // namespace webrtc

#endif  // MODULES_VIDEO_CODING_UTILITY_SIMULCAST_UTILITY_H_