Richard Antalik
302b04a5a3
Patch implements better way to control playback speed than it is possible to do with speed effect. Speed factor property can be set in Time panel. There are 2 layers of control: Option to retime movie to match scene FPS rate. Custom speed factor to control playback rate. Since playback rate is strip property, it is now possible to manipulate strip as normal one even if it is retimed. To facilitate manipulation, some functions need to consider speed factor and apply necessary corrections to strip offset or strip start. These corrections may need to be float numbers, so start and offsets must be float as well. Sound strips now use speed factor instead of pitch. This means, that strips will change length to match usable length. In addition, it is possible to group movie and sound strip and change speed of meta strip.
83 lines
3.5 KiB
C++
83 lines
3.5 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2004 Blender Foundation. All rights reserved. */
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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 ListBase;
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struct Scene;
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struct Sequence;
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struct rctf;
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/**
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* Initialize given rectangle with the Scene's timeline boundaries.
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*
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* \param scene: the Scene instance whose timeline boundaries are extracted from
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* \param rect: output parameter to be filled with timeline boundaries
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*/
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void SEQ_timeline_init_boundbox(const struct Scene *scene, struct rctf *rect);
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/**
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* Stretch the given rectangle to include the given strips boundaries
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*
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* \param seqbase: ListBase in which strips are located
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* \param rect: output parameter to be filled with strips' boundaries
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*/
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void SEQ_timeline_expand_boundbox(const struct Scene *scene,
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const struct ListBase *seqbase,
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struct rctf *rect);
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/**
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* Define boundary rectangle of sequencer timeline and fill in rect data
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*
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* \param scene: Scene in which strips are located
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* \param seqbase: ListBase in which strips are located
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* \param rect: data structure describing rectangle, that will be filled in by this function
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*/
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void SEQ_timeline_boundbox(const struct Scene *scene,
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const struct ListBase *seqbase,
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struct rctf *rect);
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float SEQ_time_sequence_get_fps(struct Scene *scene, struct Sequence *seq);
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int SEQ_time_find_next_prev_edit(struct Scene *scene,
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int timeline_frame,
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short side,
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bool do_skip_mute,
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bool do_center,
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bool do_unselected);
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/**
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* Test if strip intersects with timeline frame.
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* \note This checks if strip would be rendered at this frame. For rendering it is assumed, that
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* timeline frame has width of 1 frame and therefore ends at timeline_frame + 1
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*
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* \param seq: Sequence to be checked
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* \param timeline_frame: absolute frame position
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* \return true if strip intersects with timeline frame.
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*/
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bool SEQ_time_strip_intersects_frame(const struct Scene *scene,
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const struct Sequence *seq,
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int timeline_frame);
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bool SEQ_time_has_still_frames(const struct Scene *scene, const struct Sequence *seq);
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bool SEQ_time_has_left_still_frames(const struct Scene *scene, const struct Sequence *seq);
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bool SEQ_time_has_right_still_frames(const struct Scene *scene, const struct Sequence *seq);
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int SEQ_time_left_handle_frame_get(const struct Scene *scene, const struct Sequence *seq);
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int SEQ_time_right_handle_frame_get(const struct Scene *scene, const struct Sequence *seq);
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void SEQ_time_left_handle_frame_set(const struct Scene *scene, struct Sequence *seq, int val);
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void SEQ_time_right_handle_frame_set(const struct Scene *scene, struct Sequence *seq, int val);
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int SEQ_time_strip_length_get(const struct Scene *scene, const struct Sequence *seq);
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void SEQ_time_speed_factor_set(const struct Scene *scene,
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struct Sequence *seq,
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const float speed_factor);
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float SEQ_time_start_frame_get(const struct Sequence *seq);
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void SEQ_time_start_frame_set(const struct Scene *scene, struct Sequence *seq, int timeline_frame);
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void SEQ_time_update_meta_strip_range(const struct Scene *scene, struct Sequence *seq_meta);
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#ifdef __cplusplus
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}
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#endif
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