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/*
* Copyright 2025 LiveKit, Inc.
*
* 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.
*/
#pragma once
#include <memory>
#include "api/audio/audio_frame.h"
#include "api/data_channel_interface.h"
#include "common_audio/resampler/include/push_resampler.h"
#include "livekit/webrtc.h"
#include "rust/cxx.h"
namespace livekit_ffi {
class AudioResampler {
public:
size_t remix_and_resample(const int16_t* src,
size_t samples_per_channel,
size_t num_channels,
int sample_rate_hz,
size_t dest_num_channels,
int dest_sample_rate_hz);
const int16_t* data() const;
private:
webrtc::AudioFrame frame_;
webrtc::PushResampler<int16_t> resampler_;
};
std::unique_ptr<AudioResampler> create_audio_resampler();
} // namespace livekit_ffi