1 /* 2 * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_ 11 #define VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_ 12 13 #include <string> 14 #include <vector> 15 16 #include "api/transport/field_trial_based_config.h" 17 #include "api/units/data_rate.h" 18 #include "api/video_codecs/video_encoder.h" 19 #include "call/adaptation/video_source_restrictions.h" 20 #include "video/config/video_encoder_config.h" 21 22 namespace cricket { 23 24 class EncoderStreamFactory 25 : public webrtc::VideoEncoderConfig::VideoStreamFactoryInterface { 26 public: 27 // Note: this constructor is used by testcase in downstream. 28 EncoderStreamFactory(std::string codec_name, 29 int max_qp, 30 bool is_screenshare, 31 bool conference_mode); 32 33 EncoderStreamFactory(std::string codec_name, 34 int max_qp, 35 bool is_screenshare, 36 bool conference_mode, 37 const webrtc::VideoEncoder::EncoderInfo& encoder_info, 38 absl::optional<webrtc::VideoSourceRestrictions> 39 restrictions = absl::nullopt, 40 const webrtc::FieldTrialsView* trials = nullptr); 41 42 std::vector<webrtc::VideoStream> CreateEncoderStreams( 43 int width, 44 int height, 45 const webrtc::VideoEncoderConfig& encoder_config) override; 46 47 private: 48 std::vector<webrtc::VideoStream> CreateDefaultVideoStreams( 49 int width, 50 int height, 51 const webrtc::VideoEncoderConfig& encoder_config, 52 const absl::optional<webrtc::DataRate>& experimental_min_bitrate) const; 53 54 std::vector<webrtc::VideoStream> 55 CreateSimulcastOrConferenceModeScreenshareStreams( 56 int width, 57 int height, 58 const webrtc::VideoEncoderConfig& encoder_config, 59 const absl::optional<webrtc::DataRate>& experimental_min_bitrate) const; 60 61 webrtc::Resolution GetLayerResolutionFromRequestedResolution( 62 int in_frame_width, 63 int in_frame_height, 64 webrtc::Resolution requested_resolution) const; 65 66 const std::string codec_name_; 67 const int max_qp_; 68 const bool is_screenshare_; 69 // Allows a screenshare specific configuration, which enables temporal 70 // layering and various settings. 71 const bool conference_mode_; 72 const webrtc::FieldTrialBasedConfig fallback_trials_; 73 const webrtc::FieldTrialsView& trials_; 74 const int encoder_info_requested_resolution_alignment_; 75 const absl::optional<webrtc::VideoSourceRestrictions> restrictions_; 76 }; 77 78 } // namespace cricket 79 80 #endif // VIDEO_CONFIG_ENCODER_STREAM_FACTORY_H_ 81