Théo Monnom
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
/*
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* Copyright 2023 LiveKit
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*
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* Licensed under the Apache License, Version 2.0 (the “License”);
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an “AS IS” BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "livekit/audio_resampler.h"
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#include <memory>
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#include "audio/remix_resample.h"
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namespace livekit {
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size_t AudioResampler::remix_and_resample(const int16_t* src,
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size_t samples_per_channel,
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size_t num_channels,
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int sample_rate,
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size_t dest_num_channels,
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int dest_sample_rate) {
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frame_.num_channels_ = dest_num_channels;
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frame_.sample_rate_hz_ = dest_sample_rate;
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webrtc::voe::RemixAndResample(src, samples_per_channel, num_channels,
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sample_rate, &resampler_, &frame_);
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return frame_.num_channels() * frame_.samples_per_channel();
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}
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const int16_t* AudioResampler::data() const {
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return frame_.data();
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}
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std::unique_ptr<AudioResampler> create_audio_resampler() {
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return std::make_unique<AudioResampler>();
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}
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} // namespace livekit
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