113 lines
3.3 KiB
C++
113 lines
3.3 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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AudioWaveformCache::AudioWaveformCache(QObject *parent) :
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PlaybackCache{parent}
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{
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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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// Write visual
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TimeRangeList::util_remove(&waveforms_, r);
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if (waveform) {
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TimeRangeWithWaveform wv = r;
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rational local_start = r.in() - range.in();
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wv.waveform = waveform->Mid(local_start, r.length());
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waveforms_.append(wv);
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}
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Validate(r);
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}
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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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rational end = start_time + rational::fromDouble(rect.width() / scale);
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TimeRange draw_range(start_time, end);
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foreach (const TimeRangeWithWaveform &wv, waveforms_) {
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if (wv.OverlapsWith(draw_range)) {
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rational substart = std::max(wv.in(), draw_range.in());
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rational subend = std::min(wv.out(), draw_range.out());
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QRect subrect = rect;
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subrect.setLeft(subrect.left() + (substart - draw_range.in()).toDouble()*scale);
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subrect.setWidth((subend - substart).toDouble()*scale);
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rational local_start = substart - wv.in();
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AudioVisualWaveform::DrawWaveform(painter, subrect, scale, wv.waveform, local_start);
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}
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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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QMap<rational, AudioVisualWaveform::Sample> sample;
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TimeRange acquire(start, start+length);
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foreach (const TimeRangeWithWaveform &wv, waveforms_) {
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if (wv.OverlapsWith(acquire)) {
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TimeRange this_range = wv.Intersected(acquire);
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auto sum = wv.waveform.GetSummaryFromTime(this_range.in() - wv.in(), this_range.length());
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sample.insert(this_range.in(), sum);
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}
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}
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AudioVisualWaveform::Sample result;
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for (auto it=sample.cbegin(); it!=sample.cend(); it++) {
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result.insert(result.end(), it.value().begin(), it.value().end());
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}
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return result;
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}
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rational AudioWaveformCache::length() const
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{
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rational len = 0;
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foreach (const TimeRangeWithWaveform &wv, waveforms_) {
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len = std::max(len, wv.out());
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}
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return len;
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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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waveforms_ = c->waveforms_;
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for (const TimeRange &r : c->GetValidatedRanges()) {
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Validate(r);
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}
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SetParameters(c->GetParameters());
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SetSavingEnabled(c->IsSavingEnabled());
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}
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}
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