itsmattkc
75d4cd899b
The macro defined namespaces confused the hell out of lupdate and more or less broke translations permanently. Looks like the only way we can do it is to have a hardcoded namespace, which goes against my instinct, but honestly how likely is it that we'll change the namespace anyway (I guess forks might want to do it, but that's their problem ;) )
116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 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 SUMSAMPLES_H
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#define SUMSAMPLES_H
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#include <QFloat16>
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#include <QPainter>
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#include <QVector>
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#include "codec/samplebuffer.h"
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namespace olive {
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/**
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* @brief A buffer of data used to store a visual representation of audio
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*
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* This differs from a SampleBuffer as the data in an AudioVisualWaveform has been reduced
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* significantly and optimized for visual display.
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*/
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class AudioVisualWaveform {
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public:
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AudioVisualWaveform() = default;
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struct SamplePerChannel {
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qfloat16 min;
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qfloat16 max;
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};
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using Sample = QVector<SamplePerChannel>;
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int channel_count() const
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{
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return channels_;
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}
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void set_channel_count(int channels)
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{
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channels_ = channels;
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}
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int nb_samples() const
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{
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return data_.size();
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}
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const SamplePerChannel* const_data() const
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{
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return data_.constData();
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}
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void AddSum(const float* samples, int nb_samples, int nb_channels);
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void OverwriteSamples(SampleBufferPtr samples, int sample_rate, const rational& start = rational());
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void OverwriteSums(const AudioVisualWaveform& sums, const rational& dest, const rational& offset = rational(), const rational &length = rational());
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AudioVisualWaveform Mid(const rational& time) const;
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void Append(const AudioVisualWaveform& waveform);
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void TrimIn(const rational& time);
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void TrimOut(const rational& time);
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void PrependSilence(const rational& time);
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void AppendSilence(const rational& time);
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void Shift(const rational& from, const rational& to);
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// FIXME: Move to dynamic
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static const int kSumSampleRate;
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static QVector<SamplePerChannel> SumSamples(const float* samples, int nb_samples, int nb_channels);
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static QVector<SamplePerChannel> SumSamples(const qfloat16* samples, int nb_samples, int nb_channels);
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static QVector<SamplePerChannel> SumSamples(SampleBufferPtr samples, int start_index, int length);
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static QVector<SamplePerChannel> ReSumSamples(const SamplePerChannel *samples, int nb_samples, int nb_channels);
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static void DrawSample(QPainter* painter, const QVector<SamplePerChannel> &sample, int x, int y, int height);
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static void DrawWaveform(QPainter* painter, const QRect &rect, const double &scale, const AudioVisualWaveform& samples, const rational &start_time);
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private:
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template <typename T>
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static QVector<SamplePerChannel> SumSamplesInternal(const T* samples, int nb_samples, int nb_channels);
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template <typename T>
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static void ExpandMinMax(SamplePerChannel &sum, T value);
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int time_to_samples(const rational& time) const;
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int time_to_samples(const double& time) const;
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int channels_ = 0;
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QVector<SamplePerChannel> data_;
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};
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}
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Q_DECLARE_METATYPE(olive::AudioVisualWaveform)
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#endif // SUMSAMPLES_H
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