tracking_stabilize.c File Reference

#include <limits.h>
#include "DNA_anim_types.h"
#include "DNA_movieclip_types.h"
#include "DNA_scene_types.h"
#include "RNA_access.h"
#include "BLI_ghash.h"
#include "BLI_listbase.h"
#include "BLI_math.h"
#include "BLI_math_vector.h"
#include "BLI_sort_utils.h"
#include "BLI_task.h"
#include "BLI_utildefines.h"
#include "BKE_fcurve.h"
#include "BKE_movieclip.h"
#include "BKE_tracking.h"
#include "IMB_colormanagement.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "MEM_guardedalloc.h"

Go to the source code of this file.

Classes
struct	TrackStabilizationBase
struct	TrackInitOrder
struct	StabContext
struct	TrackingStabilizeFrameInterpolationData

Typedefs
typedef struct TrackStabilizationBase	TrackStabilizationBase
typedef struct TrackInitOrder	TrackInitOrder
typedef struct StabContext	StabContext
typedef void(*	interpolation_func) (struct ImBuf *, struct ImBuf *, float, float, int, int)
typedef struct TrackingStabilizeFrameInterpolationData	TrackingStabilizeFrameInterpolationData

Functions
static TrackStabilizationBase *	access_stabilization_baseline_data (StabContext *ctx, MovieTrackingTrack *track)
static void	attach_stabilization_baseline_data (StabContext *ctx, MovieTrackingTrack *track, TrackStabilizationBase *private_data)
static void	discard_stabilization_baseline_data (void *val)
static FCurve *	retrieve_stab_animation (MovieClip *clip, const char *data_path, int idx)
static FCurve *	retrieve_track_weight_animation (MovieClip *clip, MovieTrackingTrack *track)
static float	fetch_from_fcurve (FCurve *animationCurve, int framenr, StabContext *ctx, float default_value)
static float	get_animated_locinf (StabContext *ctx, int framenr)
static float	get_animated_rotinf (StabContext *ctx, int framenr)
static float	get_animated_scaleinf (StabContext *ctx, int framenr)
static void	get_animated_target_pos (StabContext *ctx, int framenr, float target_pos[2])
static float	get_animated_target_rot (StabContext *ctx, int framenr)
static float	get_animated_target_scale (StabContext *ctx, int framenr)
static float	get_animated_weight (StabContext *ctx, MovieTrackingTrack *track, int framenr)
static void	use_values_from_fcurves (StabContext *ctx, bool toggle)
static StabContext *	init_stabilization_working_context (MovieClip *clip)
static void	discard_stabilization_working_context (StabContext *ctx)
static bool	is_init_for_stabilization (StabContext *ctx, MovieTrackingTrack *track)
static bool	is_usable_for_stabilization (StabContext *ctx, MovieTrackingTrack *track)
static bool	is_effectively_disabled (StabContext *ctx, MovieTrackingTrack *track, MovieTrackingMarker *marker)
static int	search_closest_marker_index (MovieTrackingTrack *track, int ref_frame)
static void	retrieve_next_higher_usable_frame (StabContext *ctx, MovieTrackingTrack *track, int i, int ref_frame, int *next_higher)
static void	retrieve_next_lower_usable_frame (StabContext *ctx, MovieTrackingTrack *track, int i, int ref_frame, int *next_lower)
static void	find_next_working_frames (StabContext *ctx, int framenr, int *next_lower, int *next_higher)
static MovieTrackingMarker *	get_closest_marker (StabContext *ctx, MovieTrackingTrack *track, int ref_frame)
static MovieTrackingMarker *	get_tracking_data_point (StabContext *ctx, MovieTrackingTrack *track, int framenr, float *r_weight)
static void	setup_pivot (const float ref_pos[2], float r_pivot[2])
static void	translation_contribution (TrackStabilizationBase *track_ref, MovieTrackingMarker *marker, float result_offset[2])
static float	rotation_contribution (TrackStabilizationBase *track_ref, MovieTrackingMarker *marker, const float aspect, const float pivot[2], float *result_angle, float *result_scale)
static void	compensate_rotation_center (const int size, float aspect, const float angle, const float scale, const float pivot[2], float result_translation[2])
static bool	average_track_contributions (StabContext *ctx, int framenr, float aspect, float r_translation[2], float r_pivot[2], float *r_angle, float *r_scale_step)
static void	average_marker_positions (StabContext *ctx, int framenr, float r_ref_pos[2])
static bool	interpolate_averaged_track_contributions (StabContext *ctx, int framenr, int frame_a, int frame_b, const float aspect, float r_translation[2], float r_pivot[2], float *r_angle, float *r_scale_step)
static int	establish_track_initialization_order (StabContext *ctx, TrackInitOrder *order)
static void	init_track_for_stabilization (StabContext *ctx, MovieTrackingTrack *track, int reference_frame, float aspect, const float average_translation[2], const float pivot[2], const float average_angle, const float average_scale_step)
static void	init_all_tracks (StabContext *ctx, float aspect)
static bool	stabilization_determine_offset_for_frame (StabContext *ctx, int framenr, float aspect, float r_translation[2], float r_pivot[2], float *r_angle, float *r_scale_step)
static void	stabilization_calculate_data (StabContext *ctx, int framenr, int size, float aspect, bool do_compensate, float scale_step, float r_translation[2], float r_pivot[2], float *r_scale, float *r_angle)
static void	stabilization_data_to_mat4 (float pixel_aspect, const float pivot[2], const float translation[2], float scale, float angle, float r_mat[4][4])
static float	calculate_autoscale_factor (StabContext *ctx, int size, float aspect)
static StabContext *	init_stabilizer (MovieClip *clip, int size, float aspect)
void	BKE_tracking_stabilization_data_get (MovieClip *clip, int framenr, int width, int height, float translation[2], float *scale, float *angle)
static void	tracking_stabilize_frame_interpolation_cb (void *__restrict userdata, const int j, const TaskParallelTLS *__restrict UNUSED(tls))
ImBuf *	BKE_tracking_stabilize_frame (MovieClip *clip, int framenr, ImBuf *ibuf, float translation[2], float *scale, float *angle)
void	BKE_tracking_stabilization_data_to_mat4 (int buffer_width, int buffer_height, float pixel_aspect, float translation[2], float scale, float angle, float r_mat[4][4])

Variables
static float	SCALE_ERROR_LIMIT_BIAS = 0.01f
static float	EPSILON_WEIGHT = 0.005f

Detailed Description

This file contains implementation of 2D image stabilization.

Definition in file tracking_stabilize.c.

Typedef Documentation

interpolation_func

typedef void(* interpolation_func) (struct ImBuf *, struct ImBuf *, float, float, int, int)

Definition at line 1310 of file tracking_stabilize.c.

StabContext

typedef struct StabContext StabContext

TrackingStabilizeFrameInterpolationData

typedef struct TrackingStabilizeFrameInterpolationData TrackingStabilizeFrameInterpolationData

TrackInitOrder

typedef struct TrackInitOrder TrackInitOrder

TrackStabilizationBase

typedef struct TrackStabilizationBase TrackStabilizationBase

Function Documentation

access_stabilization_baseline_data()

static TrackStabilizationBase* access_stabilization_baseline_data ( StabContext *  ctx, MovieTrackingTrack *  track  )

static

Definition at line 117 of file tracking_stabilize.c.

References BLI_ghash_lookup(), and StabContext::private_track_data.

Referenced by average_track_contributions(), get_animated_weight(), init_all_tracks(), init_track_for_stabilization(), and is_init_for_stabilization().

attach_stabilization_baseline_data()

static void attach_stabilization_baseline_data ( StabContext *  ctx, MovieTrackingTrack *  track, TrackStabilizationBase *  private_data  )

static

Definition at line 123 of file tracking_stabilize.c.

References BLI_ghash_insert(), and StabContext::private_track_data.

Referenced by init_all_tracks().

average_marker_positions()

static void average_marker_positions ( StabContext *  ctx, int  framenr, float  r_ref_pos[2]  )

static

Definition at line 632 of file tracking_stabilize.c.

References EPSILON_WEIGHT, get_tracking_data_point(), LISTBASE_FOREACH, MAXFRAME, MINAFRAME, MINFRAME, MovieTrackingMarker::pos, retrieve_next_higher_usable_frame(), retrieve_next_lower_usable_frame(), search_closest_marker_index(), TRACK_USE_2D_STAB, StabContext::tracking, MovieTracking::tracks, use_values_from_fcurves(), and zero_v2().

Referenced by init_all_tracks().

average_track_contributions()

static bool average_track_contributions ( StabContext *  ctx, int  framenr, float  aspect, float  r_translation[2], float  r_pivot[2], float *  r_angle, float *  r_scale_step  )

static

Definition at line 520 of file tracking_stabilize.c.

References access_stabilization_baseline_data(), BLI_assert, EPSILON_WEIGHT, MovieTrackingStabilization::flag, get_tracking_data_point(), is_init_for_stabilization(), LISTBASE_FOREACH, logf, NULL, MovieTrackingMarker::pos, rotation_contribution(), setup_pivot(), MovieTracking::stabilization, TRACK_USE_2D_STAB, TRACK_USE_2D_STAB_ROT, StabContext::tracking, TRACKING_2D_STABILIZATION, TRACKING_STABILIZE_ROTATION, TRACKING_STABILIZE_SCALE, MovieTracking::tracks, translation_contribution(), and zero_v2().

Referenced by init_all_tracks(), interpolate_averaged_track_contributions(), and stabilization_determine_offset_for_frame().

BKE_tracking_stabilization_data_get()

void BKE_tracking_stabilization_data_get	(	MovieClip *	clip,
		int	framenr,
		int	width,
		int	height,
		float	translation[2],
		float *	scale,
		float *	angle
	)

Definition at line 1273 of file tracking_stabilize.c.

References angle(), MovieTracking::camera, compensate_rotation_center(), discard_stabilization_working_context(), enabled, MovieTrackingStabilization::flag, float(), height, init_stabilizer(), NULL, MovieTrackingCamera::pixel_aspect, size(), MovieTracking::stabilization, stabilization_calculate_data(), stabilization_determine_offset_for_frame(), MovieClip::tracking, TRACKING_2D_STABILIZATION, width, and zero_v2().

Referenced by BKE_tracking_stabilize_frame(), blender::compositor::MovieClipNode::convertToOperations(), get_stable_cached_frame(), and blender::compositor::MovieClipAttributeOperation::initExecution().

BKE_tracking_stabilization_data_to_mat4()

void BKE_tracking_stabilization_data_to_mat4	(	int	buffer_width,
		int	buffer_height,
		float	pixel_aspect,
		float	translation[2],
		float	scale,
		float	angle,
		float	r_mat[4][4]
	)

Definition at line 1462 of file tracking_stabilize.c.

References angle(), and stabilization_data_to_mat4().

Referenced by BKE_tracking_stabilize_frame(), and clip_draw_main().

BKE_tracking_stabilize_frame()

ImBuf* BKE_tracking_stabilize_frame	(	MovieClip *	clip,
		int	framenr,
		ImBuf *	ibuf,
		float	translation[2],
		float *	scale,
		float *	angle
	)

Definition at line 1345 of file tracking_stabilize.c.

References angle(), bicubic_interpolation(), bilinear_interpolation(), BKE_tracking_stabilization_data_get(), BKE_tracking_stabilization_data_to_mat4(), BLI_parallel_range_settings_defaults(), BLI_task_parallel_range(), MovieTracking::camera, copy_v2_v2(), data, MovieTrackingStabilization::filter, filter(), MovieTrackingStabilization::flag, height, IB_rect, IB_RECT_INVALID, IB_rectfloat, IMB_allocImBuf(), IMB_colormanagegent_copy_settings(), invert_m4(), nearest_interpolation(), NULL, MovieTrackingCamera::pixel_aspect, ImBuf::planes, ImBuf::rect, ImBuf::rect_float, MovieTracking::stabilization, MovieClip::tracking, TRACKING_2D_STABILIZATION, TRACKING_FILTER_BICUBIC, TRACKING_FILTER_BILINEAR, TRACKING_FILTER_NEAREST, tracking_stabilize_frame_interpolation_cb(), TaskParallelSettings::use_threading, ImBuf::userflags, width, ImBuf::x, ImBuf::y, and zero_v2().

Referenced by put_stabilized_frame_to_cache().

calculate_autoscale_factor()

static float calculate_autoscale_factor ( StabContext *  ctx, int  size, float  aspect  )

static

Definition at line 1117 of file tracking_stabilize.c.

References add_v2_v2v2(), angle(), MovieTracking::camera, copy_v2_v2(), cross_v2v2(), dist_to_line_v2(), MovieTrackingStabilization::flag, height, LISTBASE_FOREACH, max_ff(), max_ii(), MovieTrackingStabilization::maxscale, min_ff(), min_ii(), mul_m4_v3(), MovieTrackingCamera::pixel_aspect, size(), StabContext::stab, stabilization_calculate_data(), stabilization_data_to_mat4(), stabilization_determine_offset_for_frame(), sub_v3_v3v3(), TRACK_USE_2D_STAB, TRACK_USE_2D_STAB_ROT, StabContext::tracking, TRACKING_STABILIZE_ROTATION, MovieTracking::tracks, use_values_from_fcurves(), and width.

Referenced by init_stabilizer().

compensate_rotation_center()

static void compensate_rotation_center ( const int  size, float  aspect, const float  angle, const float  scale, const float  pivot[2], float  result_translation[2]  )

static

Definition at line 486 of file tracking_stabilize.c.

References add_v2_v2(), angle(), angle_to_mat2(), copy_v2_v2(), mul_m2_v2(), mul_v2_fl(), size(), and sub_v2_v2().

Referenced by BKE_tracking_stabilization_data_get().

discard_stabilization_baseline_data()

static void discard_stabilization_baseline_data ( void *  val )

static

Definition at line 130 of file tracking_stabilize.c.

References MEM_freeN, and NULL.

Referenced by discard_stabilization_working_context().

discard_stabilization_working_context()

static void discard_stabilization_working_context ( StabContext *  ctx )

static

Discard all private working data attached to this call context.

Note

We allocate the record for the per track baseline contribution locally for each call context (i.e. call to BKE_tracking_stabilization_data_get) Thus it is correct to discard all allocations found within the corresponding local GHash.

Definition at line 244 of file tracking_stabilize.c.

References BLI_ghash_free(), discard_stabilization_baseline_data(), MEM_freeN, NULL, and StabContext::private_track_data.

Referenced by BKE_tracking_stabilization_data_get().

establish_track_initialization_order()

static int establish_track_initialization_order ( StabContext *  ctx, TrackInitOrder *  order  )

static

Definition at line 751 of file tracking_stabilize.c.

References abs(), MovieTrackingStabilization::anchor_frame, BLI_sortutil_cmp_int(), MovieTrackingMarker::framenr, get_closest_marker(), LISTBASE_FOREACH, NULL, order, MovieTracking::stabilization, TRACK_USE_2D_STAB, TRACK_USE_2D_STAB_ROT, StabContext::tracking, and MovieTracking::tracks.

Referenced by init_all_tracks().

fetch_from_fcurve()

static float fetch_from_fcurve ( FCurve *  animationCurve, int  framenr, StabContext *  ctx, float  default_value  )

static

Definition at line 154 of file tracking_stabilize.c.

References BKE_movieclip_remap_clip_to_scene_frame(), StabContext::clip, evaluate_fcurve(), and StabContext::use_animation.

Referenced by get_animated_locinf(), get_animated_rotinf(), get_animated_scaleinf(), get_animated_target_pos(), get_animated_target_rot(), and get_animated_target_scale().

find_next_working_frames()

static void find_next_working_frames ( StabContext *  ctx, int  framenr, int *  next_lower, int *  next_higher  )

static

Definition at line 315 of file tracking_stabilize.c.

References is_usable_for_stabilization(), LISTBASE_FOREACH, retrieve_next_higher_usable_frame(), retrieve_next_lower_usable_frame(), search_closest_marker_index(), StabContext::tracking, and MovieTracking::tracks.

Referenced by stabilization_determine_offset_for_frame().

get_animated_locinf()

static float get_animated_locinf ( StabContext *  ctx, int  framenr  )

static

Definition at line 166 of file tracking_stabilize.c.

References fetch_from_fcurve(), StabContext::locinf, MovieTrackingStabilization::locinf, and StabContext::stab.

Referenced by stabilization_calculate_data().

get_animated_rotinf()

static float get_animated_rotinf ( StabContext *  ctx, int  framenr  )

static

Definition at line 171 of file tracking_stabilize.c.

References fetch_from_fcurve(), StabContext::rotinf, MovieTrackingStabilization::rotinf, and StabContext::stab.

Referenced by stabilization_calculate_data().

get_animated_scaleinf()

static float get_animated_scaleinf ( StabContext *  ctx, int  framenr  )

static

Definition at line 176 of file tracking_stabilize.c.

References fetch_from_fcurve(), StabContext::scaleinf, MovieTrackingStabilization::scaleinf, and StabContext::stab.

Referenced by stabilization_calculate_data().

get_animated_target_pos()

static void get_animated_target_pos ( StabContext *  ctx, int  framenr, float  target_pos[2]  )

static

Definition at line 181 of file tracking_stabilize.c.

References fetch_from_fcurve(), StabContext::stab, StabContext::target_pos, and MovieTrackingStabilization::target_pos.

Referenced by stabilization_calculate_data().

get_animated_target_rot()

static float get_animated_target_rot ( StabContext *  ctx, int  framenr  )

static

Definition at line 187 of file tracking_stabilize.c.

References fetch_from_fcurve(), StabContext::stab, StabContext::target_rot, and MovieTrackingStabilization::target_rot.

Referenced by stabilization_calculate_data().

get_animated_target_scale()

static float get_animated_target_scale ( StabContext *  ctx, int  framenr  )

static

Definition at line 192 of file tracking_stabilize.c.

References fetch_from_fcurve(), MovieTrackingStabilization::scale, StabContext::stab, and StabContext::target_scale.

Referenced by stabilization_calculate_data().

get_animated_weight()

static float get_animated_weight ( StabContext *  ctx, MovieTrackingTrack *  track, int  framenr  )

static

Definition at line 197 of file tracking_stabilize.c.

References access_stabilization_baseline_data(), BKE_movieclip_remap_clip_to_scene_frame(), StabContext::clip, evaluate_fcurve(), TrackStabilizationBase::track_weight_curve, and MovieTrackingTrack::weight_stab.

Referenced by get_tracking_data_point(), and is_effectively_disabled().

get_closest_marker()

static MovieTrackingMarker* get_closest_marker ( StabContext *  ctx, MovieTrackingTrack *  track, int  ref_frame  )

static

Definition at line 330 of file tracking_stabilize.c.

References BKE_tracking_marker_get_exact(), MAXFRAME, MINAFRAME, retrieve_next_higher_usable_frame(), retrieve_next_lower_usable_frame(), and search_closest_marker_index().

Referenced by establish_track_initialization_order().

get_tracking_data_point()

static MovieTrackingMarker* get_tracking_data_point ( StabContext *  ctx, MovieTrackingTrack *  track, int  framenr, float *  r_weight  )

static

Definition at line 352 of file tracking_stabilize.c.

References BKE_tracking_marker_get_exact(), MovieTrackingMarker::flag, get_animated_weight(), MARKER_DISABLED, and NULL.

Referenced by average_marker_positions(), and average_track_contributions().

init_all_tracks()

static void init_all_tracks ( StabContext *  ctx, float  aspect  )

static

Definition at line 860 of file tracking_stabilize.c.

References access_stabilization_baseline_data(), MovieTrackingStabilization::anchor_frame, attach_stabilization_baseline_data(), average_marker_positions(), average_track_contributions(), BLI_assert, StabContext::clip, establish_track_initialization_order(), init_track_for_stabilization(), TrackStabilizationBase::is_init_for_stabilization, LISTBASE_FOREACH, MEM_callocN, MEM_freeN, MEM_mallocN, NULL, order, retrieve_track_weight_animation(), setup_pivot(), MovieTracking::stabilization, TrackStabilizationBase::track_weight_curve, StabContext::tracking, MovieTracking::tracks, and zero_v2().

Referenced by init_stabilizer().

init_stabilization_working_context()

static StabContext* init_stabilization_working_context ( MovieClip *  clip )

static

Definition at line 218 of file tracking_stabilize.c.

References BLI_ghash_ptr_new(), StabContext::clip, StabContext::locinf, MEM_callocN, StabContext::private_track_data, retrieve_stab_animation(), StabContext::rotinf, StabContext::scaleinf, StabContext::stab, MovieTracking::stabilization, StabContext::target_pos, StabContext::target_rot, StabContext::target_scale, StabContext::tracking, MovieClip::tracking, and StabContext::use_animation.

Referenced by init_stabilizer().

init_stabilizer()

static StabContext* init_stabilizer ( MovieClip *  clip, int  size, float  aspect  )

static

Definition at line 1239 of file tracking_stabilize.c.

References BLI_assert, calculate_autoscale_factor(), MovieTrackingStabilization::flag, init_all_tracks(), init_stabilization_working_context(), NULL, MovieTrackingStabilization::scale, size(), StabContext::stab, TRACKING_AUTOSCALE, and use_values_from_fcurves().

Referenced by BKE_tracking_stabilization_data_get().

init_track_for_stabilization()

static void init_track_for_stabilization ( StabContext *  ctx, MovieTrackingTrack *  track, int  reference_frame, float  aspect, const float  average_translation[2], const float  pivot[2], const float  average_angle, const float  average_scale_step  )

static

Definition at line 825 of file tracking_stabilize.c.

References access_stabilization_baseline_data(), angle(), angle_to_mat2(), atan2f, BKE_tracking_marker_get_exact(), BLI_assert, expf, TrackStabilizationBase::is_init_for_stabilization, len, len_v2(), NULL, pos, MovieTrackingMarker::pos, SCALE_ERROR_LIMIT_BIAS, TrackStabilizationBase::stabilization_offset_base, TrackStabilizationBase::stabilization_rotation_base, TrackStabilizationBase::stabilization_scale_base, and sub_v2_v2v2().

Referenced by init_all_tracks().

interpolate_averaged_track_contributions()

static bool interpolate_averaged_track_contributions ( StabContext *  ctx, int  framenr, int  frame_a, int  frame_b, const float  aspect, float  r_translation[2], float  r_pivot[2], float *  r_angle, float *  r_scale_step  )

static

Definition at line 694 of file tracking_stabilize.c.

References average_track_contributions(), BLI_assert, float(), interp_v2_v2v2(), and t.

Referenced by stabilization_determine_offset_for_frame().

is_effectively_disabled()

static bool is_effectively_disabled ( StabContext *  ctx, MovieTrackingTrack *  track, MovieTrackingMarker *  marker  )

static

Definition at line 263 of file tracking_stabilize.c.

References EPSILON_WEIGHT, MovieTrackingMarker::flag, MovieTrackingMarker::framenr, get_animated_weight(), and MARKER_DISABLED.

Referenced by retrieve_next_higher_usable_frame(), and retrieve_next_lower_usable_frame().

is_init_for_stabilization()

static bool is_init_for_stabilization ( StabContext *  ctx, MovieTrackingTrack *  track  )

static

Definition at line 252 of file tracking_stabilize.c.

References access_stabilization_baseline_data(), TrackStabilizationBase::is_init_for_stabilization, and NULL.

Referenced by average_track_contributions(), and is_usable_for_stabilization().

is_usable_for_stabilization()

static bool is_usable_for_stabilization ( StabContext *  ctx, MovieTrackingTrack *  track  )

static

Definition at line 258 of file tracking_stabilize.c.

References MovieTrackingTrack::flag, is_init_for_stabilization(), and TRACK_USE_2D_STAB.

Referenced by find_next_working_frames().

retrieve_next_higher_usable_frame()

static void retrieve_next_higher_usable_frame ( StabContext *  ctx, MovieTrackingTrack *  track, int  i, int  ref_frame, int *  next_higher  )

static

Definition at line 277 of file tracking_stabilize.c.

References BLI_assert, is_effectively_disabled(), markers, MovieTrackingTrack::markers, and MovieTrackingTrack::markersnr.

Referenced by average_marker_positions(), find_next_working_frames(), and get_closest_marker().

retrieve_next_lower_usable_frame()

static void retrieve_next_lower_usable_frame ( StabContext *  ctx, MovieTrackingTrack *  track, int  i, int  ref_frame, int *  next_lower  )

static

Definition at line 294 of file tracking_stabilize.c.

References BLI_assert, is_effectively_disabled(), markers, and MovieTrackingTrack::markers.

Referenced by average_marker_positions(), find_next_working_frames(), and get_closest_marker().

retrieve_stab_animation()

static FCurve* retrieve_stab_animation ( MovieClip *  clip, const char *  data_path, int  idx  )

static

Definition at line 139 of file tracking_stabilize.c.

References MovieClip::id, id_data_find_fcurve(), NULL, RNA_MovieTrackingStabilization, MovieTracking::stabilization, and MovieClip::tracking.

Referenced by init_stabilization_working_context().

retrieve_track_weight_animation()

static FCurve* retrieve_track_weight_animation ( MovieClip *  clip, MovieTrackingTrack *  track  )

static

Definition at line 149 of file tracking_stabilize.c.

References MovieClip::id, id_data_find_fcurve(), NULL, and RNA_MovieTrackingTrack.

Referenced by init_all_tracks().

rotation_contribution()

static float rotation_contribution ( TrackStabilizationBase *  track_ref, MovieTrackingMarker *  marker, const float  aspect, const float  pivot[2], float *  result_angle, float *  result_scale  )

static

Definition at line 449 of file tracking_stabilize.c.

References atan2f, BLI_assert, expf, len, len_v2(), mul_m2_v2(), pos, MovieTrackingMarker::pos, SCALE_ERROR_LIMIT_BIAS, TrackStabilizationBase::stabilization_rotation_base, TrackStabilizationBase::stabilization_scale_base, and sub_v2_v2v2().

Referenced by average_track_contributions().

search_closest_marker_index()

static int search_closest_marker_index ( MovieTrackingTrack *  track, int  ref_frame  )

static

Definition at line 271 of file tracking_stabilize.c.

References BKE_tracking_marker_get(), and MovieTrackingTrack::markers.

Referenced by average_marker_positions(), find_next_working_frames(), and get_closest_marker().

setup_pivot()

static void setup_pivot ( const float  ref_pos[2], float  r_pivot[2]  )

static

Definition at line 383 of file tracking_stabilize.c.

References add_v2_v2(), and zero_v2().

Referenced by average_track_contributions(), and init_all_tracks().

stabilization_calculate_data()

static void stabilization_calculate_data ( StabContext *  ctx, int  framenr, int  size, float  aspect, bool  do_compensate, float  scale_step, float  r_translation[2], float  r_pivot[2], float *  r_scale, float *  r_angle  )

static

Definition at line 1014 of file tracking_stabilize.c.

References expf, MovieTrackingStabilization::flag, float(), get_animated_locinf(), get_animated_rotinf(), get_animated_scaleinf(), get_animated_target_pos(), get_animated_target_rot(), get_animated_target_scale(), mul_v2_fl(), size(), StabContext::stab, sub_v2_v2(), and TRACKING_STABILIZE_SCALE.

Referenced by BKE_tracking_stabilization_data_get(), and calculate_autoscale_factor().

stabilization_data_to_mat4()

static void stabilization_data_to_mat4 ( float  pixel_aspect, const float  pivot[2], const float  translation[2], float  scale, float  angle, float  r_mat[4][4]  )

static

Definition at line 1069 of file tracking_stabilize.c.

References add_v2_v2(), angle(), invert_m4_m4(), mul_m4_series, rotate_m4(), size_to_mat4(), sub_v2_v2(), and unit_m4().

Referenced by BKE_tracking_stabilization_data_to_mat4(), and calculate_autoscale_factor().

stabilization_determine_offset_for_frame()

static bool stabilization_determine_offset_for_frame ( StabContext *  ctx, int  framenr, float  aspect, float  r_translation[2], float  r_pivot[2], float *  r_angle, float *  r_scale_step  )

static

Definition at line 946 of file tracking_stabilize.c.

References average_track_contributions(), find_next_working_frames(), MovieTrackingStabilization::flag, interpolate_averaged_track_contributions(), MAXFRAME, MINAFRAME, MINFRAME, StabContext::stab, TRACKING_2D_STABILIZATION, use_values_from_fcurves(), and zero_v2().

Referenced by BKE_tracking_stabilization_data_get(), and calculate_autoscale_factor().

tracking_stabilize_frame_interpolation_cb()

static void tracking_stabilize_frame_interpolation_cb ( void *__restrict  userdata, const int  j, const TaskParallelTLS *__restrict   UNUSEDtls  )

static

Definition at line 1320 of file tracking_stabilize.c.

References data, float(), mul_v3_m4v3(), and ImBuf::x.

Referenced by BKE_tracking_stabilize_frame().

translation_contribution()

static void translation_contribution ( TrackStabilizationBase *  track_ref, MovieTrackingMarker *  marker, float  result_offset[2]  )

static

Definition at line 405 of file tracking_stabilize.c.

References add_v2_v2v2(), MovieTrackingMarker::pos, and TrackStabilizationBase::stabilization_offset_base.

Referenced by average_track_contributions().

use_values_from_fcurves()

static void use_values_from_fcurves ( StabContext *  ctx, bool  toggle  )

static

Definition at line 208 of file tracking_stabilize.c.

References NULL, and StabContext::use_animation.

Referenced by average_marker_positions(), calculate_autoscale_factor(), init_stabilizer(), and stabilization_determine_offset_for_frame().

Variable Documentation

EPSILON_WEIGHT

float EPSILON_WEIGHT = 0.005f

static

Definition at line 67 of file tracking_stabilize.c.

Referenced by average_marker_positions(), average_track_contributions(), and is_effectively_disabled().

SCALE_ERROR_LIMIT_BIAS

float SCALE_ERROR_LIMIT_BIAS = 0.01f

static

Definition at line 61 of file tracking_stabilize.c.

Referenced by init_track_for_stabilization(), and rotation_contribution().