lyra_components.h

/*
 * Copyright 2021 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef LYRA_CODEC_LYRA_COMPONENTS_H_
#define LYRA_CODEC_LYRA_COMPONENTS_H_

#include <cstdint>
#include <memory>
#include <vector>

#include "absl/status/statusor.h"
#include "Eigen/Core"
#include "include/ghc/filesystem.hpp"
#include "denoiser_interface.h"
#include "feature_extractor_interface.h"
#include "generative_model_interface.h"
#include "packet_interface.h"
#include "vector_quantizer_interface.h"

namespace chromemedia {
namespace codec {

std::unique_ptr<VectorQuantizerInterface> CreateQuantizer(
    int num_output_features, int num_bits,
    const ghc::filesystem::path& model_path);

std::unique_ptr<VectorQuantizerInterface> CreateQuantizer(
    int num_features, int num_bits, const Eigen::RowVectorXf& mean_vector,
    const Eigen::MatrixXf& transformation_matrix,
    const std::vector<float>& code_vectors,
    const std::vector<int16_t>& codebook_dimensions);

std::unique_ptr<GenerativeModelInterface> CreateGenerativeModel(
    int num_samples_per_hop, int num_output_features, int num_frames_per_packet,
    const ghc::filesystem::path& model_path);

std::unique_ptr<FeatureExtractorInterface> CreateFeatureExtractor(
    int sample_rate_hz, int num_features, int num_samples_per_hop,
    int num_samples_per_frame);

absl::StatusOr<std::unique_ptr<DenoiserInterface>> CreateDenoiser(
    const ghc::filesystem::path& model_path);

std::unique_ptr<PacketInterface> CreatePacket();

}  // namespace codec
}  // namespace chromemedia

#endif  // LYRA_CODEC_LYRA_COMPONENTS_H_