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/*
* Copyright 2013, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "util_frame_mapper.h"
extern "C" {
#include "DNA_scene_types.h"
}
namespace PTC {
using namespace Abc;
using namespace AbcCoreAbstract;
FrameMapper::FrameMapper(double fps)
{
m_frames_per_sec = fps;
m_sec_per_frame = (fps == 0.0 ? 0.0 : 1.0/fps);
}
FrameMapper::FrameMapper(Scene *scene)
{
m_frames_per_sec = (scene->r.frs_sec_base == 0.0f ? 0.0 : (double)scene->r.frs_sec / (double)scene->r.frs_sec_base);
m_sec_per_frame = (scene->r.frs_sec == 0.0f ? 0.0 : (double)scene->r.frs_sec_base / (double)scene->r.frs_sec);
}
chrono_t FrameMapper::frame_to_time(float frame) const
{
return (double)(frame - 1.0f) * m_sec_per_frame;
}
float FrameMapper::time_to_frame(chrono_t time) const
{
return (float)(time * m_frames_per_sec) + 1.0f;
}
} /* namespace PTC */
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