resampler.h

Go to the documentation of this file.

/*
 *  Copyright (C) 2004-2025 Savoir-faire Linux Inc.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once
 
#include "audio_format.h"
#include "media/media_buffer.h"
#include "noncopyable.h"
 
extern "C" {
struct AVFrame;
struct SwrContext;
}
 
namespace jami {
 
class AudioBuffer;
 
class Resampler
{
public:
    Resampler();
    ~Resampler();
 
    int resample(const AVFrame* input, AVFrame* output);
 
    std::unique_ptr<AudioFrame> resample(std::unique_ptr<AudioFrame>&& in, const AudioFormat& out);
 
    std::shared_ptr<AudioFrame> resample(std::shared_ptr<AudioFrame>&& in, const AudioFormat& out);
 
private:
    NON_COPYABLE(Resampler);
 
    void reinit(const AVFrame* in, const AVFrame* out);
 
    SwrContext* swrCtx_;
 
    unsigned initCount_;
};
 
} // namespace jami