116 lines
3.6 KiB
C++
116 lines
3.6 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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#include "audiowaveformcache.h"
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namespace olive {
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#define super PlaybackCache
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AudioWaveformCache::AudioWaveformCache(QObject *parent) :
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super{parent}
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{
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waveforms_ = std::make_shared<AudioVisualWaveform>();
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}
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void AudioWaveformCache::WriteWaveform(const TimeRange &range, const TimeRangeList &valid_ranges, const AudioVisualWaveform *waveform)
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{
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// Write each valid range to the segments
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foreach (const TimeRange& r, valid_ranges) {
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if (waveform) {
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waveforms_->OverwriteSums(*waveform, r.in(), r.in() - range.in(), r.length());
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}
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Validate(r);
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}
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}
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void DrawSubRect(QPainter *painter, const QRect &rect, const double &scale, const TimeRange &wave_range, const AudioVisualWaveform &waveform, const TimeRange &subrange)
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{
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// Find start time of passthrough
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TimeRange intersect = wave_range.Intersected(subrange);
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// Create new rect that starts at the offset of pass_start from start_time
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// Set rect width to either length of passthrough or until the end
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QRect pass_rect(rect.x() + (intersect.in() - wave_range.in()).toDouble() * scale,
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rect.y(),
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intersect.length().toDouble() * scale,
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rect.height());
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// Draw waveform with this info
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AudioVisualWaveform::DrawWaveform(painter, pass_rect, scale, waveform, intersect.in());
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}
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void AudioWaveformCache::Draw(QPainter *painter, const QRect &rect, const double &scale, const rational &start_time) const
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{
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if (!passthroughs_.empty()) {
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TimeRange wave_range(start_time, start_time + rational::fromDouble(rect.width() / scale));
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TimeRangeList draw_range = {wave_range};
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for (const WaveformPassthrough &p : passthroughs_) {
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if (draw_range.OverlapsWith(p, true, false)) {
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DrawSubRect(painter, rect, scale, wave_range, *p.waveform, p);
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// Remove this range
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draw_range.remove(p);
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}
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}
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for (const TimeRange &r : draw_range) {
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DrawSubRect(painter, rect, scale, wave_range, *waveforms_, r);
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}
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} else {
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AudioVisualWaveform::DrawWaveform(painter, rect, scale, *waveforms_, start_time);
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}
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}
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AudioVisualWaveform::Sample AudioWaveformCache::GetSummaryFromTime(const rational &start, const rational &length) const
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{
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return waveforms_->GetSummaryFromTime(start, length);
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}
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rational AudioWaveformCache::length() const
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{
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return waveforms_->length();
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}
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void AudioWaveformCache::SetPassthrough(PlaybackCache *cache)
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{
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AudioWaveformCache *c = static_cast<AudioWaveformCache*>(cache);
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for (const TimeRange &r : c->GetValidatedRanges()) {
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WaveformPassthrough t = r;
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t.waveform = c->waveforms_;
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passthroughs_.push_back(t);
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}
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passthroughs_.insert(passthroughs_.end(), c->passthroughs_.begin(), c->passthroughs_.end());
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SetParameters(c->GetParameters());
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SetSavingEnabled(c->IsSavingEnabled());
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}
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void AudioWaveformCache::InvalidateEvent(const TimeRange& range)
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{
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TimeRangeList::util_remove(&passthroughs_, range);
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super::InvalidateEvent(range);
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}
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}
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