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/*
* Copyright 2021 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 RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
#define RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
#include <cstdint>
#include <optional>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/field_trials_view.h"
#include "api/video/video_codec_type.h"
#include "api/video_codecs/video_encoder.h"
#include "rtc_base/experiments/field_trial_parser.h"
namespace webrtc {
class EncoderInfoSettings {
public:
virtual ~EncoderInfoSettings();
// Bitrate limits per resolution.
struct BitrateLimit {
int frame_size_pixels = 0; // The video frame size.
int min_start_bitrate_bps = 0; // The minimum bitrate to start encoding.
int min_bitrate_bps = 0; // The minimum bitrate.
int max_bitrate_bps = 0; // The maximum bitrate.
};
std::optional<uint32_t> requested_resolution_alignment() const;
bool apply_alignment_to_all_simulcast_layers() const {
return apply_alignment_to_all_simulcast_layers_.Get();
}
std::vector<VideoEncoder::ResolutionBitrateLimits> resolution_bitrate_limits()
const {
return resolution_bitrate_limits_;
}
static std::vector<VideoEncoder::ResolutionBitrateLimits>
GetDefaultSinglecastBitrateLimits(VideoCodecType codec_type);
static std::optional<VideoEncoder::ResolutionBitrateLimits>
GetDefaultSinglecastBitrateLimitsForResolution(VideoCodecType codec_type,
int frame_size_pixels);
static std::vector<VideoEncoder::ResolutionBitrateLimits>
GetDefaultSinglecastBitrateLimitsWhenQpIsUntrusted(VideoCodecType codec_type);
static std::optional<VideoEncoder::ResolutionBitrateLimits>
GetSinglecastBitrateLimitForResolutionWhenQpIsUntrusted(
std::optional<int> frame_size_pixels,
const std::vector<VideoEncoder::ResolutionBitrateLimits>&
resolution_bitrate_limits);
protected:
EncoderInfoSettings(const FieldTrialsView& field_trials,
absl::string_view name);
private:
FieldTrialOptional<uint32_t> requested_resolution_alignment_;
FieldTrialFlag apply_alignment_to_all_simulcast_layers_;
std::vector<VideoEncoder::ResolutionBitrateLimits> resolution_bitrate_limits_;
};
// EncoderInfo settings for SimulcastEncoderAdapter.
class SimulcastEncoderAdapterEncoderInfoSettings : public EncoderInfoSettings {
public:
explicit SimulcastEncoderAdapterEncoderInfoSettings(
const FieldTrialsView& field_trials);
~SimulcastEncoderAdapterEncoderInfoSettings() override {}
};
// EncoderInfo settings for LibvpxVp8Encoder.
class LibvpxVp8EncoderInfoSettings : public EncoderInfoSettings {
public:
explicit LibvpxVp8EncoderInfoSettings(const FieldTrialsView& field_trials);
~LibvpxVp8EncoderInfoSettings() override {}
};
// EncoderInfo settings for LibvpxVp9Encoder.
class LibvpxVp9EncoderInfoSettings : public EncoderInfoSettings {
public:
explicit LibvpxVp9EncoderInfoSettings(const FieldTrialsView& field_trials);
~LibvpxVp9EncoderInfoSettings() override {}
};
// EncoderInfo settings for LibaomAv1Encoder.
class LibaomAv1EncoderInfoSettings : public EncoderInfoSettings {
public:
explicit LibaomAv1EncoderInfoSettings(const FieldTrialsView& field_trials);
~LibaomAv1EncoderInfoSettings() override {}
};
} // namespace webrtc
#endif // RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
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