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oak-editor/app/audio/audioprocessor.h
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2026-01-05 16:22:26 +08:00

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/*
* Oak Video Editor - Non-Linear Video Editor
* Copyright (C) 2025 Olive CE Team
*
* 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 <http://www.gnu.org/licenses/>.
*/
#ifndef AUDIOPROCESSOR_H
#define AUDIOPROCESSOR_H
#include <inttypes.h>
#include <olive/core/core.h>
#include <QByteArray>
extern "C" {
#include <libavfilter/avfilter.h>
}
#include "common/define.h"
namespace olive
{
using namespace core;
class AudioProcessor {
public:
AudioProcessor();
~AudioProcessor();
DISABLE_COPY_MOVE(AudioProcessor)
bool Open(const AudioParams &from, const AudioParams &to,
double tempo = 1.0);
void Close();
bool IsOpen() const
{
return filter_graph_;
}
using Buffer = QVector<QByteArray>;
int Convert(float **in, int nb_in_samples, AudioProcessor::Buffer *output);
void Flush();
const AudioParams &from() const
{
return from_;
}
const AudioParams &to() const
{
return to_;
}
private:
static AVFilterContext *CreateTempoFilter(AVFilterGraph *graph,
AVFilterContext *link,
const double &tempo);
AVFilterGraph *filter_graph_;
AVFilterContext *buffersrc_ctx_;
AVFilterContext *buffersink_ctx_;
AudioParams from_;
AVSampleFormat from_fmt_;
AudioParams to_;
AVSampleFormat to_fmt_;
AVFrame *in_frame_;
AVFrame *out_frame_;
};
}
#endif // AUDIOPROCESSOR_H