Richard Antalik
929d7597b3
Simplify logic of speed effect frame calculation by using discrete math where possible. Only `SEQ_SPEED_MULTIPLY` mode with animation requires frame map to be built. Frame map building was simplified by removing unused branches. Functional change: Animating strip in negative range will reverse playback. I assume this was limitation of previous system, where each frame map item was limited to be within correct frame range. Now frame map can contain values that point beyond usable range and they are limited by `seq_speed_effect_target_frame_get`. This way it is possible to control playback rate in both directions. Mostly fixes T89120 apart from offset handling. Reviewed By: mano-wii Differential Revision: https://developer.blender.org/D11939
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2004 Blender Foundation.
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* All rights reserved.
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*/
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#pragma once
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/** \file
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* \ingroup sequencer
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct Scene;
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struct SeqRenderData;
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struct Sequence;
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/* **********************************************************************
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* sequencer.c
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*
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* Sequencer editing functions
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* **********************************************************************
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*/
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struct SeqEffectHandle seq_effect_get_sequence_blend(struct Sequence *seq);
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void seq_effect_speed_rebuild_map(struct Scene *scene, struct Sequence *seq);
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float seq_speed_effect_target_frame_get(struct Scene *scene,
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struct Sequence *seq,
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float timeline_frame,
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int input);
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#ifdef __cplusplus
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}
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#endif
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