82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef AUDIOPROCESSOR_H
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#define AUDIOPROCESSOR_H
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#include <inttypes.h>
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extern "C" {
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#include <libavfilter/avfilter.h>
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}
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#include "common/define.h"
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#include "render/audioparams.h"
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namespace olive {
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class AudioProcessor
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{
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public:
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AudioProcessor();
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~AudioProcessor();
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DISABLE_COPY_MOVE(AudioProcessor)
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bool Open(const AudioParams &from, const AudioParams &to, double tempo = 1.0);
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void Close();
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bool IsOpen() const { return filter_graph_; }
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using Buffer = QVector<QByteArray>;
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int Convert(float **in, int nb_in_samples, AudioProcessor::Buffer *output);
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void Flush();
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const AudioParams &from() const { return from_; }
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const AudioParams &to() const { return to_; }
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private:
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static AVFilterContext* CreateTempoFilter(AVFilterGraph *graph, AVFilterContext *link, const double& tempo);
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AVFilterGraph* filter_graph_;
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AVFilterContext* buffersrc_ctx_;
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AVFilterContext* buffersink_ctx_;
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AudioParams from_;
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AVSampleFormat from_fmt_;
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AudioParams to_;
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AVSampleFormat to_fmt_;
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AVFrame *in_frame_;
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AVFrame *out_frame_;
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};
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}
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#endif // AUDIOPROCESSOR_H
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