66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/***
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Oak - Non-Linear Video Editor
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Copyright (C) 2026 Oak 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 "audiosynchronizer.h"
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namespace olive
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{
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AudioSynchronizer::Placement AudioSynchronizer::PlaceBySourceTime(
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const SourceClip &reference, const SourceClip &candidate,
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const core::rational &reference_timeline_in)
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{
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Placement placement;
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if (!reference.has_source_start_time || !candidate.has_source_start_time ||
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reference.source_start_time.isNaN() ||
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candidate.source_start_time.isNaN()) {
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return placement;
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}
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const core::rational reference_head_source =
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reference.source_start_time + reference.media_in;
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const core::rational candidate_head_source =
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candidate.source_start_time + candidate.media_in;
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placement.timeline_in =
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reference_timeline_in + candidate_head_source - reference_head_source;
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placement.valid = !placement.timeline_in.isNaN();
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return placement;
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}
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AudioSynchronizer::Placement AudioSynchronizer::PlaceByWaveformOffset(
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const core::rational &reference_timeline_in,
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int64_t candidate_offset_samples, int sample_rate)
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{
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Placement placement;
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if (sample_rate <= 0) {
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return placement;
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}
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placement.timeline_in = reference_timeline_in +
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core::rational::fromDouble(
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static_cast<double>(candidate_offset_samples) /
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static_cast<double>(sample_rate));
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placement.valid = !placement.timeline_in.isNaN();
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return placement;
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}
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}
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