encoder_stream_factory.h

Enable keyboard shortcuts

/*

 *  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 VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_

#define VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_

#include <string>

#include <vector>

#include "api/field_trials_view.h"

#include "api/units/data_rate.h"

#include "api/video_codecs/video_encoder.h"

#include "call/adaptation/video_source_restrictions.h"

#include "video/config/video_encoder_config.h"

namespace cricket {

class EncoderStreamFactory

    : public webrtc::VideoEncoderConfig::VideoStreamFactoryInterface {

 public:

  EncoderStreamFactory(const webrtc::VideoEncoder::EncoderInfo& encoder_info,

                       std::optional<webrtc::VideoSourceRestrictions>

                           restrictions = std::nullopt);

  std::vector<webrtc::VideoStream> CreateEncoderStreams(

      const webrtc::FieldTrialsView& trials,

      int width,

      int height,

      const webrtc::VideoEncoderConfig& encoder_config) override;

 private:

  std::vector<webrtc::VideoStream> CreateDefaultVideoStreams(

      int width,

      int height,

      const webrtc::VideoEncoderConfig& encoder_config,

      const std::optional<webrtc::DataRate>& experimental_min_bitrate) const;

  std::vector<webrtc::VideoStream>

  CreateSimulcastOrConferenceModeScreenshareStreams(

      const webrtc::FieldTrialsView& trials,

      int width,

      int height,

      const webrtc::VideoEncoderConfig& encoder_config,

      const std::optional<webrtc::DataRate>& experimental_min_bitrate) const;

  webrtc::Resolution GetLayerResolutionFromRequestedResolution(

      int in_frame_width,

      int in_frame_height,

      webrtc::Resolution requested_resolution) const;

  std::vector<webrtc::Resolution> GetStreamResolutions(

      const webrtc::FieldTrialsView& trials,

      int width,

      int height,

      const webrtc::VideoEncoderConfig& encoder_config) const;

  const int encoder_info_requested_resolution_alignment_;

  const std::optional<webrtc::VideoSourceRestrictions> restrictions_;

};

}  // namespace cricket

#endif  // VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_