audio_frame_resizer.h

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/*
 *  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"
 
#include <mutex>
 
extern "C" {
struct AVAudioFifo;
}
 
namespace jami {
 
class AudioFrameResizer
{
public:
    AudioFrameResizer(const AudioFormat& format,
                      int frameSize,
                      std::function<void(std::shared_ptr<AudioFrame>&&)> cb = {});
    ~AudioFrameResizer();
 
    int samples() const;
 
    AudioFormat format() const;
 
    void setFormat(const AudioFormat& format, int frameSize);
    void setFrameSize(int frameSize);
 
    int frameSize() const;
 
    void enqueue(std::shared_ptr<AudioFrame>&& frame);
 
    std::shared_ptr<AudioFrame> dequeue();
 
private:
    NON_COPYABLE(AudioFrameResizer);
 
    AudioFormat format_;
 
    int frameSize_;
 
    std::function<void(std::shared_ptr<AudioFrame>&&)> cb_;
 
    AVAudioFifo* queue_;
    int64_t nextOutputPts_ {0};
    bool hasVoice_ {false};
};
 
} // namespace jami