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d65350015237a257c57421772e84c878d84314b2
blender-archive/source/blender/blenkernel/intern/tracking.c
Sergey Sharybin d653500152 Tracking: Some minor improvements to copy-paste 
- Deselect all existing tracks when pasteing, makes it
  easier to tweak stuff after the paste.

- Make first of the pasted tracks active.
2014-09-26 14:49:06 +06:00

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is Copyright (C) 2011 Blender Foundation.
* All rights reserved.
*
* Contributor(s): Blender Foundation,
* Sergey Sharybin
* Keir Mierle
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/tracking.c
* \ingroup bke
*/
#include <stddef.h>
#include <limits.h>
#include <math.h>
#include <memory.h>
#include "MEM_guardedalloc.h"
#include "DNA_anim_types.h"
#include "DNA_gpencil_types.h"
#include "DNA_camera_types.h"
#include "DNA_movieclip_types.h"
#include "DNA_object_types.h" /* SELECT */
#include "DNA_scene_types.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLI_math_base.h"
#include "BLI_listbase.h"
#include "BLI_path_util.h"
#include "BLI_string.h"
#include "BLI_threads.h"
#include "BLF_translation.h"
#include "BKE_fcurve.h"
#include "BKE_tracking.h"
#include "BKE_movieclip.h"
#include "BKE_object.h"
#include "BKE_scene.h"
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "RNA_access.h"
#include "raskter.h"
#include "libmv-capi.h"
#include "tracking_private.h"
typedef struct MovieDistortion {
struct libmv_CameraIntrinsics *intrinsics;
} MovieDistortion;
static struct {
ListBase tracks;
} tracking_clipboard;
/*********************** Common functions *************************/
/* Free the whole list of tracks, list's head and tail are set to NULL. */
static void tracking_tracks_free(ListBase *tracks)
{
MovieTrackingTrack *track;
for (track = tracks->first; track; track = track->next) {
BKE_tracking_track_free(track);
}
BLI_freelistN(tracks);
}
/* Free the whole list of plane tracks, list's head and tail are set to NULL. */
static void tracking_plane_tracks_free(ListBase *plane_tracks)
{
MovieTrackingPlaneTrack *plane_track;
for (plane_track = plane_tracks->first; plane_track; plane_track = plane_track->next) {
BKE_tracking_plane_track_free(plane_track);
}
BLI_freelistN(plane_tracks);
}
/* Free reconstruction structures, only frees contents of a structure,
* (if structure is allocated in heap, it shall be handled outside).
*
* All the pointers inside structure becomes invalid after this call.
*/
static void tracking_reconstruction_free(MovieTrackingReconstruction *reconstruction)
{
if (reconstruction->cameras)
MEM_freeN(reconstruction->cameras);
}
/* Free memory used by tracking object, only frees contents of the structure,
* (if structure is allocated in heap, it shall be handled outside).
*
* All the pointers inside structure becomes invalid after this call.
*/
static void tracking_object_free(MovieTrackingObject *object)
{
tracking_tracks_free(&object->tracks);
tracking_plane_tracks_free(&object->plane_tracks);
tracking_reconstruction_free(&object->reconstruction);
}
/* Free list of tracking objects, list's head and tail is set to NULL. */
static void tracking_objects_free(ListBase *objects)
{
MovieTrackingObject *object;
/* Free objects contents. */
for (object = objects->first; object; object = object->next)
tracking_object_free(object);
/* Free objects themselves. */
BLI_freelistN(objects);
}
/* Free memory used by a dopesheet, only frees dopesheet contents.
* leaving dopesheet crystal clean for further usage.
*/
static void tracking_dopesheet_free(MovieTrackingDopesheet *dopesheet)
{
MovieTrackingDopesheetChannel *channel;
/* Free channel's sergments. */
channel = dopesheet->channels.first;
while (channel) {
if (channel->segments) {
MEM_freeN(channel->segments);
}
channel = channel->next;
}
/* Free lists themselves. */
BLI_freelistN(&dopesheet->channels);
BLI_freelistN(&dopesheet->coverage_segments);
/* Ensure lists are clean. */
BLI_listbase_clear(&dopesheet->channels);
BLI_listbase_clear(&dopesheet->coverage_segments);
dopesheet->tot_channel = 0;
}
/* Free tracking structure, only frees structure contents
* (if structure is allocated in heap, it shall be handled outside).
*
* All the pointers inside structure becomes invalid after this call.
*/
void BKE_tracking_free(MovieTracking *tracking)
{
tracking_tracks_free(&tracking->tracks);
tracking_plane_tracks_free(&tracking->plane_tracks);
tracking_reconstruction_free(&tracking->reconstruction);
tracking_objects_free(&tracking->objects);
if (tracking->camera.intrinsics)
BKE_tracking_distortion_free(tracking->camera.intrinsics);
tracking_dopesheet_free(&tracking->dopesheet);
}
/* Initialize motion tracking settings to default values,
* used when new movie clip datablock is creating.
*/
void BKE_tracking_settings_init(MovieTracking *tracking)
{
tracking->camera.sensor_width = 35.0f;
tracking->camera.pixel_aspect = 1.0f;
tracking->camera.units = CAMERA_UNITS_MM;
tracking->settings.default_motion_model = TRACK_MOTION_MODEL_TRANSLATION;
tracking->settings.default_minimum_correlation = 0.75;
tracking->settings.default_pattern_size = 21;
tracking->settings.default_search_size = 71;
tracking->settings.default_algorithm_flag |= TRACK_ALGORITHM_FLAG_USE_BRUTE;
tracking->settings.default_weight = 1.0f;
tracking->settings.dist = 1;
tracking->settings.object_distance = 1;
tracking->stabilization.scaleinf = 1.0f;
tracking->stabilization.locinf = 1.0f;
tracking->stabilization.rotinf = 1.0f;
tracking->stabilization.maxscale = 2.0f;
tracking->stabilization.filter = TRACKING_FILTER_BILINEAR;
BKE_tracking_object_add(tracking, "Camera");
}
/* Get list base of active object's tracks. */
ListBase *BKE_tracking_get_active_tracks(MovieTracking *tracking)
{
MovieTrackingObject *object = BKE_tracking_object_get_active(tracking);
if (object && (object->flag & TRACKING_OBJECT_CAMERA) == 0) {
return &object->tracks;
}
return &tracking->tracks;
}
/* Get list base of active object's plane tracks. */
ListBase *BKE_tracking_get_active_plane_tracks(MovieTracking *tracking)
{
MovieTrackingObject *object = BKE_tracking_object_get_active(tracking);
if (object && (object->flag & TRACKING_OBJECT_CAMERA) == 0) {
return &object->plane_tracks;
}
return &tracking->plane_tracks;
}
/* Get reconstruction data of active object. */
MovieTrackingReconstruction *BKE_tracking_get_active_reconstruction(MovieTracking *tracking)
{
MovieTrackingObject *object = BKE_tracking_object_get_active(tracking);
return BKE_tracking_object_get_reconstruction(tracking, object);
}
/* Get transformation matrix for a given object which is used
* for parenting motion tracker reconstruction to 3D world.
*/
void BKE_tracking_get_camera_object_matrix(Scene *scene, Object *ob, float mat[4][4])
{
if (!ob) {
if (scene->camera)
ob = scene->camera;
else
ob = BKE_scene_camera_find(scene);
}
if (ob)
BKE_object_where_is_calc_mat4(scene, ob, mat);
else
unit_m4(mat);
}
/* Get projection matrix for camera specified by given tracking object
* and frame number.
*
* NOTE: frame number should be in clip space, not scene space
*/
void BKE_tracking_get_projection_matrix(MovieTracking *tracking, MovieTrackingObject *object,
int framenr, int winx, int winy, float mat[4][4])
{
MovieReconstructedCamera *camera;
float lens = tracking->camera.focal * tracking->camera.sensor_width / (float)winx;
float viewfac, pixsize, left, right, bottom, top, clipsta, clipend;
float winmat[4][4];
float ycor = 1.0f / tracking->camera.pixel_aspect;
float shiftx, shifty, winside = (float)min_ii(winx, winy);
BKE_tracking_camera_shift_get(tracking, winx, winy, &shiftx, &shifty);
clipsta = 0.1f;
clipend = 1000.0f;
if (winx >= winy)
viewfac = (lens * winx) / tracking->camera.sensor_width;
else
viewfac = (ycor * lens * winy) / tracking->camera.sensor_width;
pixsize = clipsta / viewfac;
left = -0.5f * (float)winx + shiftx * winside;
bottom = -0.5f * (ycor) * (float)winy + shifty * winside;
right = 0.5f * (float)winx + shiftx * winside;
top = 0.5f * (ycor) * (float)winy + shifty * winside;
left *= pixsize;
right *= pixsize;
bottom *= pixsize;
top *= pixsize;
perspective_m4(winmat, left, right, bottom, top, clipsta, clipend);
camera = BKE_tracking_camera_get_reconstructed(tracking, object, framenr);
if (camera) {
float imat[4][4];
invert_m4_m4(imat, camera->mat);
mul_m4_m4m4(mat, winmat, imat);
}
else {
copy_m4_m4(mat, winmat);
}
}
/*********************** clipboard *************************/
/* Free clipboard by freeing memory used by all tracks in it. */
void BKE_tracking_clipboard_free(void)
{
MovieTrackingTrack *track = tracking_clipboard.tracks.first, *next_track;
while (track) {
next_track = track->next;
BKE_tracking_track_free(track);
MEM_freeN(track);
track = next_track;
}
BLI_listbase_clear(&tracking_clipboard.tracks);
}
/* Copy selected tracks from specified object to the clipboard. */
void BKE_tracking_clipboard_copy_tracks(MovieTracking *tracking, MovieTrackingObject *object)
{
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track = tracksbase->first;
/* First drop all tracks from current clipboard. */
BKE_tracking_clipboard_free();
/* Then copy all selected visible tracks to it. */
while (track) {
if (TRACK_SELECTED(track) && (track->flag & TRACK_HIDDEN) == 0) {
MovieTrackingTrack *new_track = BKE_tracking_track_duplicate(track);
BLI_addtail(&tracking_clipboard.tracks, new_track);
}
track = track->next;
}
}
/* Check whether there're any tracks in the clipboard. */
bool BKE_tracking_clipboard_has_tracks(void)
{
return (BLI_listbase_is_empty(&tracking_clipboard.tracks) == false);
}
/* Paste tracks from clipboard to specified object.
*
* Names of new tracks in object are guaranteed to
* be unique here.
*/
void BKE_tracking_clipboard_paste_tracks(MovieTracking *tracking, MovieTrackingObject *object)
{
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track = tracking_clipboard.tracks.first;
while (track) {
MovieTrackingTrack *new_track = BKE_tracking_track_duplicate(track);
if (track->prev == NULL) {
tracking->act_track = new_track;
}
BLI_addtail(tracksbase, new_track);
BKE_tracking_track_unique_name(tracksbase, new_track);
track = track->next;
}
}
/*********************** Tracks *************************/
/* Add new track to a specified tracks base.
*
* Coordinates are expected to be in normalized 0..1 space,
* frame number is expected to be in clip space.
*
* Width and height are clip's dimension used to scale track's
* pattern and search regions.
*/
MovieTrackingTrack *BKE_tracking_track_add(MovieTracking *tracking, ListBase *tracksbase, float x, float y,
int framenr, int width, int height)
{
MovieTrackingTrack *track;
MovieTrackingMarker marker;
MovieTrackingSettings *settings = &tracking->settings;
float half_pattern = (float)settings->default_pattern_size / 2.0f;
float half_search = (float)settings->default_search_size / 2.0f;
float pat[2], search[2];
pat[0] = half_pattern / (float)width;
pat[1] = half_pattern / (float)height;
search[0] = half_search / (float)width;
search[1] = half_search / (float)height;
track = MEM_callocN(sizeof(MovieTrackingTrack), "add_marker_exec track");
strcpy(track->name, "Track");
/* fill track's settings from default settings */
track->motion_model = settings->default_motion_model;
track->minimum_correlation = settings->default_minimum_correlation;
track->margin = settings->default_margin;
track->pattern_match = settings->default_pattern_match;
track->frames_limit = settings->default_frames_limit;
track->flag = settings->default_flag;
track->algorithm_flag = settings->default_algorithm_flag;
track->weight = settings->default_weight;
memset(&marker, 0, sizeof(marker));
marker.pos[0] = x;
marker.pos[1] = y;
marker.framenr = framenr;
marker.pattern_corners[0][0] = -pat[0];
marker.pattern_corners[0][1] = -pat[1];
marker.pattern_corners[1][0] = pat[0];
marker.pattern_corners[1][1] = -pat[1];
negate_v2_v2(marker.pattern_corners[2], marker.pattern_corners[0]);
negate_v2_v2(marker.pattern_corners[3], marker.pattern_corners[1]);
copy_v2_v2(marker.search_max, search);
negate_v2_v2(marker.search_min, search);
BKE_tracking_marker_insert(track, &marker);
BLI_addtail(tracksbase, track);
BKE_tracking_track_unique_name(tracksbase, track);
return track;
}
/* Duplicate the specified track, result will no belong to any list. */
MovieTrackingTrack *BKE_tracking_track_duplicate(MovieTrackingTrack *track)
{
MovieTrackingTrack *new_track;
new_track = MEM_callocN(sizeof(MovieTrackingTrack), "tracking_track_duplicate new_track");
*new_track = *track;
new_track->next = new_track->prev = NULL;
new_track->markers = MEM_dupallocN(new_track->markers);
return new_track;
}
/* Ensure specified track has got unique name,
* if it's not name of specified track will be changed
* keeping names of all other tracks unchanged.
*/
void BKE_tracking_track_unique_name(ListBase *tracksbase, MovieTrackingTrack *track)
{
BLI_uniquename(tracksbase, track, CTX_DATA_(BLF_I18NCONTEXT_ID_MOVIECLIP, "Track"), '.',
offsetof(MovieTrackingTrack, name), sizeof(track->name));
}
/* Free specified track, only frees contents of a structure
* (if track is allocated in heap, it shall be handled outside).
*
* All the pointers inside track becomes invalid after this call.
*/
void BKE_tracking_track_free(MovieTrackingTrack *track)
{
if (track->markers)
MEM_freeN(track->markers);
}
/* Set flag for all specified track's areas.
*
* area - which part of marker should be selected. see TRACK_AREA_* constants.
* flag - flag to be set for areas.
*/
void BKE_tracking_track_flag_set(MovieTrackingTrack *track, int area, int flag)
{
if (area == TRACK_AREA_NONE)
return;
if (area & TRACK_AREA_POINT)
track->flag |= flag;
if (area & TRACK_AREA_PAT)
track->pat_flag |= flag;
if (area & TRACK_AREA_SEARCH)
track->search_flag |= flag;
}
/* Clear flag from all specified track's areas.
*
* area - which part of marker should be selected. see TRACK_AREA_* constants.
* flag - flag to be cleared for areas.
*/
void BKE_tracking_track_flag_clear(MovieTrackingTrack *track, int area, int flag)
{
if (area == TRACK_AREA_NONE)
return;
if (area & TRACK_AREA_POINT)
track->flag &= ~flag;
if (area & TRACK_AREA_PAT)
track->pat_flag &= ~flag;
if (area & TRACK_AREA_SEARCH)
track->search_flag &= ~flag;
}
/* Check whether track has got marker at specified frame.
*
* NOTE: frame number should be in clip space, not scene space.
*/
bool BKE_tracking_track_has_marker_at_frame(MovieTrackingTrack *track, int framenr)
{
return BKE_tracking_marker_get_exact(track, framenr) != NULL;
}
/* Check whether track has got enabled marker at specified frame.
*
* NOTE: frame number should be in clip space, not scene space.
*/
bool BKE_tracking_track_has_enabled_marker_at_frame(MovieTrackingTrack *track, int framenr)
{
MovieTrackingMarker *marker = BKE_tracking_marker_get_exact(track, framenr);
return marker && (marker->flag & MARKER_DISABLED) == 0;
}
/* Clear track's path:
*
* - If action is TRACK_CLEAR_REMAINED path from ref_frame+1 up to
* end will be clear.
*
* - If action is TRACK_CLEAR_UPTO path from the beginning up to
* ref_frame-1 will be clear.
*
* - If action is TRACK_CLEAR_ALL only mareker at frame ref_frame will remain.
*
* NOTE: frame number should be in clip space, not scene space
*/
void BKE_tracking_track_path_clear(MovieTrackingTrack *track, int ref_frame, int action)
{
int a;
if (action == TRACK_CLEAR_REMAINED) {
a = 1;
while (a < track->markersnr) {
if (track->markers[a].framenr > ref_frame) {
track->markersnr = a;
track->markers = MEM_reallocN(track->markers, sizeof(MovieTrackingMarker) * track->markersnr);
break;
}
a++;
}
if (track->markersnr)
tracking_marker_insert_disabled(track, &track->markers[track->markersnr - 1], false, true);
}
else if (action == TRACK_CLEAR_UPTO) {
a = track->markersnr - 1;
while (a >= 0) {
if (track->markers[a].framenr <= ref_frame) {
memmove(track->markers, track->markers + a, (track->markersnr - a) * sizeof(MovieTrackingMarker));
track->markersnr = track->markersnr - a;
track->markers = MEM_reallocN(track->markers, sizeof(MovieTrackingMarker) * track->markersnr);
break;
}
a--;
}
if (track->markersnr)
tracking_marker_insert_disabled(track, &track->markers[0], true, true);
}
else if (action == TRACK_CLEAR_ALL) {
MovieTrackingMarker *marker, marker_new;
marker = BKE_tracking_marker_get(track, ref_frame);
marker_new = *marker;
MEM_freeN(track->markers);
track->markers = NULL;
track->markersnr = 0;
BKE_tracking_marker_insert(track, &marker_new);
tracking_marker_insert_disabled(track, &marker_new, true, true);
tracking_marker_insert_disabled(track, &marker_new, false, true);
}
}
void BKE_tracking_tracks_join(MovieTracking *tracking, MovieTrackingTrack *dst_track, MovieTrackingTrack *src_track)
{
int i = 0, a = 0, b = 0, tot;
MovieTrackingMarker *markers;
tot = dst_track->markersnr + src_track->markersnr;
markers = MEM_callocN(tot * sizeof(MovieTrackingMarker), "tmp tracking joined tracks");
while (a < src_track->markersnr || b < dst_track->markersnr) {
if (b >= dst_track->markersnr) {
markers[i] = src_track->markers[a++];
}
else if (a >= src_track->markersnr) {
markers[i] = dst_track->markers[b++];
}
else if (src_track->markers[a].framenr < dst_track->markers[b].framenr) {
markers[i] = src_track->markers[a++];
}
else if (src_track->markers[a].framenr > dst_track->markers[b].framenr) {
markers[i] = dst_track->markers[b++];
}
else {
if ((src_track->markers[a].flag & MARKER_DISABLED) == 0) {
if ((dst_track->markers[b].flag & MARKER_DISABLED) == 0) {
/* both tracks are enabled on this frame, so find the whole segment
* on which tracks are intersecting and blend tracks using linear
* interpolation to prevent jumps
*/
MovieTrackingMarker *marker_a, *marker_b;
int start_a = a, start_b = b, len = 0, frame = src_track->markers[a].framenr;
int j, inverse = 0;
inverse = (b == 0) ||
(dst_track->markers[b - 1].flag & MARKER_DISABLED) ||
(dst_track->markers[b - 1].framenr != frame - 1);
/* find length of intersection */
while (a < src_track->markersnr && b < dst_track->markersnr) {
marker_a = &src_track->markers[a];
marker_b = &dst_track->markers[b];
if (marker_a->flag & MARKER_DISABLED || marker_b->flag & MARKER_DISABLED)
break;
if (marker_a->framenr != frame || marker_b->framenr != frame)
break;
frame++;
len++;
a++;
b++;
}
a = start_a;
b = start_b;
/* linear interpolation for intersecting frames */
for (j = 0; j < len; j++) {
float fac = 0.5f;
if (len > 1)
fac = 1.0f / (len - 1) * j;
if (inverse)
fac = 1.0f - fac;
marker_a = &src_track->markers[a];
marker_b = &dst_track->markers[b];
markers[i] = dst_track->markers[b];
interp_v2_v2v2(markers[i].pos, marker_b->pos, marker_a->pos, fac);
a++;
b++;
i++;
}
/* this values will be incremented at the end of the loop cycle */
a--; b--; i--;
}
else {
markers[i] = src_track->markers[a];
}
}
else {
markers[i] = dst_track->markers[b];
}
a++;
b++;
}
i++;
}
MEM_freeN(dst_track->markers);
dst_track->markers = MEM_callocN(i * sizeof(MovieTrackingMarker), "tracking joined tracks");
memcpy(dst_track->markers, markers, i * sizeof(MovieTrackingMarker));
dst_track->markersnr = i;
MEM_freeN(markers);
BKE_tracking_dopesheet_tag_update(tracking);
}
MovieTrackingTrack *BKE_tracking_track_get_named(MovieTracking *tracking, MovieTrackingObject *object, const char *name)
{
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track = tracksbase->first;
while (track) {
if (!strcmp(track->name, name))
return track;
track = track->next;
}
return NULL;
}
MovieTrackingTrack *BKE_tracking_track_get_indexed(MovieTracking *tracking, int tracknr, ListBase **tracksbase_r)
{
MovieTrackingObject *object;
int cur = 1;
object = tracking->objects.first;
while (object) {
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track = tracksbase->first;
while (track) {
if (track->flag & TRACK_HAS_BUNDLE) {
if (cur == tracknr) {
*tracksbase_r = tracksbase;
return track;
}
cur++;
}
track = track->next;
}
object = object->next;
}
*tracksbase_r = NULL;
return NULL;
}
MovieTrackingTrack *BKE_tracking_track_get_active(MovieTracking *tracking)
{
ListBase *tracksbase;
if (!tracking->act_track)
return NULL;
tracksbase = BKE_tracking_get_active_tracks(tracking);
/* check that active track is in current tracks list */
if (BLI_findindex(tracksbase, tracking->act_track) != -1)
return tracking->act_track;
return NULL;
}
static bGPDlayer *track_mask_gpencil_layer_get(MovieTrackingTrack *track)
{
bGPDlayer *layer;
if (!track->gpd)
return NULL;
layer = track->gpd->layers.first;
while (layer) {
if (layer->flag & GP_LAYER_ACTIVE) {
bGPDframe *frame = layer->frames.first;
bool ok = false;
while (frame) {
if (frame->strokes.first) {
ok = true;
break;
}
frame = frame->next;
}
if (ok)
return layer;
}
layer = layer->next;
}
return NULL;
}
static void track_mask_gpencil_layer_rasterize(int frame_width, int frame_height,
MovieTrackingMarker *marker, bGPDlayer *layer,
float *mask, int mask_width, int mask_height)
{
bGPDframe *frame = layer->frames.first;
while (frame) {
bGPDstroke *stroke = frame->strokes.first;
while (stroke) {
bGPDspoint *stroke_points = stroke->points;
float *mask_points, *fp;
int i;
if (stroke->flag & GP_STROKE_2DSPACE) {
fp = mask_points = MEM_callocN(2 * stroke->totpoints * sizeof(float),
"track mask rasterization points");
for (i = 0; i < stroke->totpoints; i++, fp += 2) {
fp[0] = (stroke_points[i].x - marker->search_min[0]) * frame_width / mask_width;
fp[1] = (stroke_points[i].y - marker->search_min[1]) * frame_height / mask_height;
}
/* TODO: add an option to control whether AA is enabled or not */
PLX_raskterize((float (*)[2])mask_points, stroke->totpoints, mask, mask_width, mask_height);
MEM_freeN(mask_points);
}
stroke = stroke->next;
}
frame = frame->next;
}
}
float *BKE_tracking_track_get_mask(int frame_width, int frame_height,
MovieTrackingTrack *track, MovieTrackingMarker *marker)
{
float *mask = NULL;
bGPDlayer *layer = track_mask_gpencil_layer_get(track);
int mask_width, mask_height;
mask_width = (marker->search_max[0] - marker->search_min[0]) * frame_width;
mask_height = (marker->search_max[1] - marker->search_min[1]) * frame_height;
if (layer) {
mask = MEM_callocN(mask_width * mask_height * sizeof(float), "track mask");
track_mask_gpencil_layer_rasterize(frame_width, frame_height, marker, layer,
mask, mask_width, mask_height);
}
return mask;
}
float BKE_tracking_track_get_weight_for_marker(MovieClip *clip, MovieTrackingTrack *track, MovieTrackingMarker *marker)
{
FCurve *weight_fcurve;
float weight = track->weight;
weight_fcurve = id_data_find_fcurve(&clip->id, track, &RNA_MovieTrackingTrack,
"weight", 0, NULL);
if (weight_fcurve) {
int scene_framenr =
BKE_movieclip_remap_clip_to_scene_frame(clip, marker->framenr);
weight = evaluate_fcurve(weight_fcurve, scene_framenr);
}
return weight;
}
/* area - which part of marker should be selected. see TRACK_AREA_* constants */
void BKE_tracking_track_select(ListBase *tracksbase, MovieTrackingTrack *track, int area, bool extend)
{
if (extend) {
BKE_tracking_track_flag_set(track, area, SELECT);
}
else {
MovieTrackingTrack *cur = tracksbase->first;
while (cur) {
if ((cur->flag & TRACK_HIDDEN) == 0) {
if (cur == track) {
BKE_tracking_track_flag_clear(cur, TRACK_AREA_ALL, SELECT);
BKE_tracking_track_flag_set(cur, area, SELECT);
}
else {
BKE_tracking_track_flag_clear(cur, TRACK_AREA_ALL, SELECT);
}
}
cur = cur->next;
}
}
}
void BKE_tracking_track_deselect(MovieTrackingTrack *track, int area)
{
BKE_tracking_track_flag_clear(track, area, SELECT);
}
void BKE_tracking_tracks_deselect_all(ListBase *tracksbase)
{
MovieTrackingTrack *track;
for (track = tracksbase->first; track; track = track->next) {
if ((track->flag & TRACK_HIDDEN) == 0) {
BKE_tracking_track_flag_clear(track, TRACK_AREA_ALL, SELECT);
}
}
}
/*********************** Marker *************************/
MovieTrackingMarker *BKE_tracking_marker_insert(MovieTrackingTrack *track, MovieTrackingMarker *marker)
{
MovieTrackingMarker *old_marker = NULL;
if (track->markersnr)
old_marker = BKE_tracking_marker_get_exact(track, marker->framenr);
if (old_marker) {
/* simply replace settings for already allocated marker */
*old_marker = *marker;
return old_marker;
}
else {
int a = track->markersnr;
/* find position in array where to add new marker */
while (a--) {
if (track->markers[a].framenr < marker->framenr)
break;
}
track->markersnr++;
if (track->markers)
track->markers = MEM_reallocN(track->markers, sizeof(MovieTrackingMarker) * track->markersnr);
else
track->markers = MEM_callocN(sizeof(MovieTrackingMarker), "MovieTracking markers");
/* shift array to "free" space for new marker */
memmove(track->markers + a + 2, track->markers + a + 1,
(track->markersnr - a - 2) * sizeof(MovieTrackingMarker));
/* put new marker */
track->markers[a + 1] = *marker;
track->last_marker = a + 1;
return &track->markers[a + 1];
}
}
void BKE_tracking_marker_delete(MovieTrackingTrack *track, int framenr)
{
int a = 0;
while (a < track->markersnr) {
if (track->markers[a].framenr == framenr) {
if (track->markersnr > 1) {
memmove(track->markers + a, track->markers + a + 1,
(track->markersnr - a - 1) * sizeof(MovieTrackingMarker));
track->markersnr--;
track->markers = MEM_reallocN(track->markers, sizeof(MovieTrackingMarker) * track->markersnr);
}
else {
MEM_freeN(track->markers);
track->markers = NULL;
track->markersnr = 0;
}
break;
}
a++;
}
}
void BKE_tracking_marker_clamp(MovieTrackingMarker *marker, int event)
{
int a;
float pat_min[2], pat_max[2];
BKE_tracking_marker_pattern_minmax(marker, pat_min, pat_max);
if (event == CLAMP_PAT_DIM) {
for (a = 0; a < 2; a++) {
/* search shouldn't be resized smaller than pattern */
marker->search_min[a] = min_ff(pat_min[a], marker->search_min[a]);
marker->search_max[a] = max_ff(pat_max[a], marker->search_max[a]);
}
}
else if (event == CLAMP_PAT_POS) {
float dim[2];
sub_v2_v2v2(dim, pat_max, pat_min);
for (a = 0; a < 2; a++) {
int b;
/* pattern shouldn't be moved outside of search */
if (pat_min[a] < marker->search_min[a]) {
for (b = 0; b < 4; b++)
marker->pattern_corners[b][a] += marker->search_min[a] - pat_min[a];
}
if (pat_max[a] > marker->search_max[a]) {
for (b = 0; b < 4; b++)
marker->pattern_corners[b][a] -= pat_max[a] - marker->search_max[a];
}
}
}
else if (event == CLAMP_SEARCH_DIM) {
for (a = 0; a < 2; a++) {
/* search shouldn't be resized smaller than pattern */
marker->search_min[a] = min_ff(pat_min[a], marker->search_min[a]);
marker->search_max[a] = max_ff(pat_max[a], marker->search_max[a]);
}
}
else if (event == CLAMP_SEARCH_POS) {
float dim[2];
sub_v2_v2v2(dim, marker->search_max, marker->search_min);
for (a = 0; a < 2; a++) {
/* search shouldn't be moved inside pattern */
if (marker->search_min[a] > pat_min[a]) {
marker->search_min[a] = pat_min[a];
marker->search_max[a] = marker->search_min[a] + dim[a];
}
if (marker->search_max[a] < pat_max[a]) {
marker->search_max[a] = pat_max[a];
marker->search_min[a] = marker->search_max[a] - dim[a];
}
}
}
}
MovieTrackingMarker *BKE_tracking_marker_get(MovieTrackingTrack *track, int framenr)
{
int a = track->markersnr - 1;
if (!track->markersnr)
return NULL;
/* approximate pre-first framenr marker with first marker */
if (framenr < track->markers[0].framenr)
return &track->markers[0];
if (track->last_marker < track->markersnr)
a = track->last_marker;
if (track->markers[a].framenr <= framenr) {
while (a < track->markersnr && track->markers[a].framenr <= framenr) {
if (track->markers[a].framenr == framenr) {
track->last_marker = a;
return &track->markers[a];
}
a++;
}
/* if there's no marker for exact position, use nearest marker from left side */
return &track->markers[a - 1];
}
else {
while (a >= 0 && track->markers[a].framenr >= framenr) {
if (track->markers[a].framenr == framenr) {
track->last_marker = a;
return &track->markers[a];
}
a--;
}
/* if there's no marker for exact position, use nearest marker from left side */
return &track->markers[a];
}
return NULL;
}
MovieTrackingMarker *BKE_tracking_marker_get_exact(MovieTrackingTrack *track, int framenr)
{
MovieTrackingMarker *marker = BKE_tracking_marker_get(track, framenr);
if (marker->framenr != framenr)
return NULL;
return marker;
}
MovieTrackingMarker *BKE_tracking_marker_ensure(MovieTrackingTrack *track, int framenr)
{
MovieTrackingMarker *marker = BKE_tracking_marker_get(track, framenr);
if (marker->framenr != framenr) {
MovieTrackingMarker marker_new;
marker_new = *marker;
marker_new.framenr = framenr;
BKE_tracking_marker_insert(track, &marker_new);
marker = BKE_tracking_marker_get(track, framenr);
}
return marker;
}
void BKE_tracking_marker_pattern_minmax(const MovieTrackingMarker *marker, float min[2], float max[2])
{
INIT_MINMAX2(min, max);
minmax_v2v2_v2(min, max, marker->pattern_corners[0]);
minmax_v2v2_v2(min, max, marker->pattern_corners[1]);
minmax_v2v2_v2(min, max, marker->pattern_corners[2]);
minmax_v2v2_v2(min, max, marker->pattern_corners[3]);
}
void BKE_tracking_marker_get_subframe_position(MovieTrackingTrack *track, float framenr, float pos[2])
{
MovieTrackingMarker *marker = BKE_tracking_marker_get(track, (int) framenr);
MovieTrackingMarker *marker_last = track->markers + (track->markersnr - 1);
if (marker != marker_last) {
MovieTrackingMarker *marker_next = marker + 1;
if (marker_next->framenr == marker->framenr + 1) {
/* currently only do subframing inside tracked ranges, do not extrapolate tracked segments
* could be changed when / if mask parent would be interpolating position in-between
* tracked segments
*/
float fac = (framenr - (int) framenr) / (marker_next->framenr - marker->framenr);
interp_v2_v2v2(pos, marker->pos, marker_next->pos, fac);
}
else {
copy_v2_v2(pos, marker->pos);
}
}
else {
copy_v2_v2(pos, marker->pos);
}
/* currently track offset is always wanted to be applied here, could be made an option later */
add_v2_v2(pos, track->offset);
}
/*********************** Plane Track *************************/
/* Creates new plane track out of selected point tracks */
MovieTrackingPlaneTrack *BKE_tracking_plane_track_add(MovieTracking *tracking, ListBase *plane_tracks_base,
ListBase *tracks, int framenr)
{
MovieTrackingPlaneTrack *plane_track;
MovieTrackingPlaneMarker plane_marker;
MovieTrackingTrack *track;
float tracks_min[2], tracks_max[2];
int track_index, num_selected_tracks = 0;
(void) tracking; /* Ignored. */
/* Use bounding box of selected markers as an initial size of plane. */
INIT_MINMAX2(tracks_min, tracks_max);
for (track = tracks->first; track; track = track->next) {
if (TRACK_SELECTED(track)) {
MovieTrackingMarker *marker = BKE_tracking_marker_get(track, framenr);
float pattern_min[2], pattern_max[2];
BKE_tracking_marker_pattern_minmax(marker, pattern_min, pattern_max);
add_v2_v2(pattern_min, marker->pos);
add_v2_v2(pattern_max, marker->pos);
minmax_v2v2_v2(tracks_min, tracks_max, pattern_min);
minmax_v2v2_v2(tracks_min, tracks_max, pattern_max);
num_selected_tracks++;
}
}
if (num_selected_tracks < 4) {
return NULL;
}
/* Allocate new plane track. */
plane_track = MEM_callocN(sizeof(MovieTrackingPlaneTrack), "new plane track");
/* Use some default name. */
strcpy(plane_track->name, "Plane Track");
plane_track->image_opacity = 1.0f;
/* Use selected tracks from given list as a plane. */
plane_track->point_tracks =
MEM_mallocN(sizeof(MovieTrackingTrack *) * num_selected_tracks, "new plane tracks array");
for (track = tracks->first, track_index = 0; track; track = track->next) {
if (TRACK_SELECTED(track)) {
plane_track->point_tracks[track_index] = track;
track_index++;
}
}
plane_track->point_tracksnr = num_selected_tracks;
/* Setup new plane marker and add it to the track. */
plane_marker.framenr = framenr;
plane_marker.flag = 0;
copy_v2_v2(plane_marker.corners[0], tracks_min);
copy_v2_v2(plane_marker.corners[2], tracks_max);
plane_marker.corners[1][0] = tracks_max[0];
plane_marker.corners[1][1] = tracks_min[1];
plane_marker.corners[3][0] = tracks_min[0];
plane_marker.corners[3][1] = tracks_max[1];
BKE_tracking_plane_marker_insert(plane_track, &plane_marker);
/* Put new plane track to the list, ensure it's name is unique. */
BLI_addtail(plane_tracks_base, plane_track);
BKE_tracking_plane_track_unique_name(plane_tracks_base, plane_track);
return plane_track;
}
void BKE_tracking_plane_track_unique_name(ListBase *plane_tracks_base, MovieTrackingPlaneTrack *plane_track)
{
BLI_uniquename(plane_tracks_base, plane_track, CTX_DATA_(BLF_I18NCONTEXT_ID_MOVIECLIP, "Plane Track"), '.',
offsetof(MovieTrackingPlaneTrack, name), sizeof(plane_track->name));
}
/* Free specified plane track, only frees contents of a structure
* (if track is allocated in heap, it shall be handled outside).
*
* All the pointers inside track becomes invalid after this call.
*/
void BKE_tracking_plane_track_free(MovieTrackingPlaneTrack *plane_track)
{
if (plane_track->markers) {
MEM_freeN(plane_track->markers);
}
MEM_freeN(plane_track->point_tracks);
}
MovieTrackingPlaneTrack *BKE_tracking_plane_track_get_named(MovieTracking *tracking,
MovieTrackingObject *object,
const char *name)
{
ListBase *plane_tracks_base = BKE_tracking_object_get_plane_tracks(tracking, object);
MovieTrackingPlaneTrack *plane_track;
for (plane_track = plane_tracks_base->first;
plane_track;
plane_track = plane_track->next)
{
if (!strcmp(plane_track->name, name)) {
return plane_track;
}
}
return NULL;
}
MovieTrackingPlaneTrack *BKE_tracking_plane_track_get_active(struct MovieTracking *tracking)
{
ListBase *plane_tracks_base;
if (tracking->act_plane_track == NULL) {
return NULL;
}
plane_tracks_base = BKE_tracking_get_active_plane_tracks(tracking);
/* Check that active track is in current plane tracks list */
if (BLI_findindex(plane_tracks_base, tracking->act_plane_track) != -1) {
return tracking->act_plane_track;
}
return NULL;
}
void BKE_tracking_plane_tracks_deselect_all(ListBase *plane_tracks_base)
{
MovieTrackingPlaneTrack *plane_track;
for (plane_track = plane_tracks_base->first; plane_track; plane_track = plane_track->next) {
plane_track->flag &= ~SELECT;
}
}
/*********************** Plane Marker *************************/
MovieTrackingPlaneMarker *BKE_tracking_plane_marker_insert(MovieTrackingPlaneTrack *plane_track,
MovieTrackingPlaneMarker *plane_marker)
{
MovieTrackingPlaneMarker *old_plane_marker = NULL;
if (plane_track->markersnr)
old_plane_marker = BKE_tracking_plane_marker_get_exact(plane_track, plane_marker->framenr);
if (old_plane_marker) {
/* Simply replace settings in existing marker. */
*old_plane_marker = *plane_marker;
return old_plane_marker;
}
else {
int a = plane_track->markersnr;
/* Find position in array where to add new marker. */
/* TODO(sergey): we coud use bisect to speed things up. */
while (a--) {
if (plane_track->markers[a].framenr < plane_marker->framenr) {
break;
}
}
plane_track->markersnr++;
plane_track->markers = MEM_reallocN(plane_track->markers,
sizeof(MovieTrackingPlaneMarker) * plane_track->markersnr);
/* Shift array to "free" space for new marker. */
memmove(plane_track->markers + a + 2, plane_track->markers + a + 1,
(plane_track->markersnr - a - 2) * sizeof(MovieTrackingPlaneMarker));
/* Put new marker to an array. */
plane_track->markers[a + 1] = *plane_marker;
plane_track->last_marker = a + 1;
return &plane_track->markers[a + 1];
}
}
void BKE_tracking_plane_marker_delete(MovieTrackingPlaneTrack *plane_track, int framenr)
{
int a = 0;
while (a < plane_track->markersnr) {
if (plane_track->markers[a].framenr == framenr) {
if (plane_track->markersnr > 1) {
memmove(plane_track->markers + a, plane_track->markers + a + 1,
(plane_track->markersnr - a - 1) * sizeof(MovieTrackingPlaneMarker));
plane_track->markersnr--;
plane_track->markers = MEM_reallocN(plane_track->markers,
sizeof(MovieTrackingMarker) * plane_track->markersnr);
}
else {
MEM_freeN(plane_track->markers);
plane_track->markers = NULL;
plane_track->markersnr = 0;
}
break;
}
a++;
}
}
/* TODO(sergey): The next couple of functions are really quite the same as point marker version,
* would be nice to de-duplicate them somehow..
*/
/* Get a plane marker at given frame,
* If there's no such marker, closest one from the left side will be returned.
*/
MovieTrackingPlaneMarker *BKE_tracking_plane_marker_get(MovieTrackingPlaneTrack *plane_track, int framenr)
{
int a = plane_track->markersnr - 1;
if (!plane_track->markersnr)
return NULL;
/* Approximate pre-first framenr marker with first marker. */
if (framenr < plane_track->markers[0].framenr) {
return &plane_track->markers[0];
}
if (plane_track->last_marker < plane_track->markersnr) {
a = plane_track->last_marker;
}
if (plane_track->markers[a].framenr <= framenr) {
while (a < plane_track->markersnr && plane_track->markers[a].framenr <= framenr) {
if (plane_track->markers[a].framenr == framenr) {
plane_track->last_marker = a;
return &plane_track->markers[a];
}
a++;
}
/* If there's no marker for exact position, use nearest marker from left side. */
return &plane_track->markers[a - 1];
}
else {
while (a >= 0 && plane_track->markers[a].framenr >= framenr) {
if (plane_track->markers[a].framenr == framenr) {
plane_track->last_marker = a;
return &plane_track->markers[a];
}
a--;
}
/* If there's no marker for exact position, use nearest marker from left side. */
return &plane_track->markers[a];
}
return NULL;
}
/* Get a plane marker at exact given frame, if there's no marker at the frame,
* NULL will be returned.
*/
MovieTrackingPlaneMarker *BKE_tracking_plane_marker_get_exact(MovieTrackingPlaneTrack *plane_track, int framenr)
{
MovieTrackingPlaneMarker *plane_marker = BKE_tracking_plane_marker_get(plane_track, framenr);
if (plane_marker->framenr != framenr) {
return NULL;
}
return plane_marker;
}
/* Ensure there's a marker for the given frame. */
MovieTrackingPlaneMarker *BKE_tracking_plane_marker_ensure(MovieTrackingPlaneTrack *plane_track, int framenr)
{
MovieTrackingPlaneMarker *plane_marker = BKE_tracking_plane_marker_get(plane_track, framenr);
if (plane_marker->framenr != framenr) {
MovieTrackingPlaneMarker plane_marker_new;
plane_marker_new = *plane_marker;
plane_marker_new.framenr = framenr;
plane_marker = BKE_tracking_plane_marker_insert(plane_track, &plane_marker_new);
}
return plane_marker;
}
/*********************** Object *************************/
MovieTrackingObject *BKE_tracking_object_add(MovieTracking *tracking, const char *name)
{
MovieTrackingObject *object = MEM_callocN(sizeof(MovieTrackingObject), "tracking object");
if (tracking->tot_object == 0) {
/* first object is always camera */
BLI_strncpy(object->name, "Camera", sizeof(object->name));
object->flag |= TRACKING_OBJECT_CAMERA;
}
else {
BLI_strncpy(object->name, name, sizeof(object->name));
}
BLI_addtail(&tracking->objects, object);
tracking->tot_object++;
tracking->objectnr = BLI_countlist(&tracking->objects) - 1;
object->scale = 1.0f;
object->keyframe1 = 1;
object->keyframe2 = 30;
BKE_tracking_object_unique_name(tracking, object);
BKE_tracking_dopesheet_tag_update(tracking);
return object;
}
bool BKE_tracking_object_delete(MovieTracking *tracking, MovieTrackingObject *object)
{
MovieTrackingTrack *track;
int index = BLI_findindex(&tracking->objects, object);
if (index == -1)
return false;
if (object->flag & TRACKING_OBJECT_CAMERA) {
/* object used for camera solving can't be deleted */
return false;
}
track = object->tracks.first;
while (track) {
if (track == tracking->act_track)
tracking->act_track = NULL;
track = track->next;
}
tracking_object_free(object);
BLI_freelinkN(&tracking->objects, object);
tracking->tot_object--;
if (index != 0)
tracking->objectnr = index - 1;
else
tracking->objectnr = 0;
BKE_tracking_dopesheet_tag_update(tracking);
return true;
}
void BKE_tracking_object_unique_name(MovieTracking *tracking, MovieTrackingObject *object)
{
BLI_uniquename(&tracking->objects, object, DATA_("Object"), '.',
offsetof(MovieTrackingObject, name), sizeof(object->name));
}
MovieTrackingObject *BKE_tracking_object_get_named(MovieTracking *tracking, const char *name)
{
MovieTrackingObject *object = tracking->objects.first;
while (object) {
if (!strcmp(object->name, name))
return object;
object = object->next;
}
return NULL;
}
MovieTrackingObject *BKE_tracking_object_get_active(MovieTracking *tracking)
{
return BLI_findlink(&tracking->objects, tracking->objectnr);
}
MovieTrackingObject *BKE_tracking_object_get_camera(MovieTracking *tracking)
{
MovieTrackingObject *object = tracking->objects.first;
while (object) {
if (object->flag & TRACKING_OBJECT_CAMERA)
return object;
object = object->next;
}
return NULL;
}
ListBase *BKE_tracking_object_get_tracks(MovieTracking *tracking, MovieTrackingObject *object)
{
if (object->flag & TRACKING_OBJECT_CAMERA) {
return &tracking->tracks;
}
return &object->tracks;
}
ListBase *BKE_tracking_object_get_plane_tracks(MovieTracking *tracking, MovieTrackingObject *object)
{
if (object->flag & TRACKING_OBJECT_CAMERA) {
return &tracking->plane_tracks;
}
return &object->plane_tracks;
}
MovieTrackingReconstruction *BKE_tracking_object_get_reconstruction(MovieTracking *tracking,
MovieTrackingObject *object)
{
if (object->flag & TRACKING_OBJECT_CAMERA) {
return &tracking->reconstruction;
}
return &object->reconstruction;
}
/*********************** Camera *************************/
static int reconstructed_camera_index_get(MovieTrackingReconstruction *reconstruction, int framenr, bool nearest)
{
MovieReconstructedCamera *cameras = reconstruction->cameras;
int a = 0, d = 1;
if (!reconstruction->camnr)
return -1;
if (framenr < cameras[0].framenr) {
if (nearest)
return 0;
else
return -1;
}
if (framenr > cameras[reconstruction->camnr - 1].framenr) {
if (nearest)
return reconstruction->camnr - 1;
else
return -1;
}
if (reconstruction->last_camera < reconstruction->camnr)
a = reconstruction->last_camera;
if (cameras[a].framenr >= framenr)
d = -1;
while (a >= 0 && a < reconstruction->camnr) {
int cfra = cameras[a].framenr;
/* check if needed framenr was "skipped" -- no data for requested frame */
if (d > 0 && cfra > framenr) {
/* interpolate with previous position */
if (nearest)
return a - 1;
else
break;
}
if (d < 0 && cfra < framenr) {
/* interpolate with next position */
if (nearest)
return a;
else
break;
}
if (cfra == framenr) {
reconstruction->last_camera = a;
return a;
}
a += d;
}
return -1;
}
static void reconstructed_camera_scale_set(MovieTrackingObject *object, float mat[4][4])
{
if ((object->flag & TRACKING_OBJECT_CAMERA) == 0) {
float smat[4][4];
scale_m4_fl(smat, 1.0f / object->scale);
mul_m4_m4m4(mat, mat, smat);
}
}
/* converts principal offset from center to offset of blender's camera */
void BKE_tracking_camera_shift_get(MovieTracking *tracking, int winx, int winy, float *shiftx, float *shifty)
{
/* indeed in both of cases it should be winx -- it's just how camera shift works for blender's camera */
*shiftx = (0.5f * winx - tracking->camera.principal[0]) / winx;
*shifty = (0.5f * winy - tracking->camera.principal[1]) / winx;
}
void BKE_tracking_camera_to_blender(MovieTracking *tracking, Scene *scene, Camera *camera, int width, int height)
{
float focal = tracking->camera.focal;
camera->sensor_x = tracking->camera.sensor_width;
camera->sensor_fit = CAMERA_SENSOR_FIT_AUTO;
camera->lens = focal * camera->sensor_x / width;
scene->r.xsch = width * tracking->camera.pixel_aspect;
scene->r.ysch = height;
scene->r.xasp = 1.0f;
scene->r.yasp = 1.0f;
BKE_tracking_camera_shift_get(tracking, width, height, &camera->shiftx, &camera->shifty);
}
MovieReconstructedCamera *BKE_tracking_camera_get_reconstructed(MovieTracking *tracking,
MovieTrackingObject *object, int framenr)
{
MovieTrackingReconstruction *reconstruction;
int a;
reconstruction = BKE_tracking_object_get_reconstruction(tracking, object);
a = reconstructed_camera_index_get(reconstruction, framenr, false);
if (a == -1)
return NULL;
return &reconstruction->cameras[a];
}
void BKE_tracking_camera_get_reconstructed_interpolate(MovieTracking *tracking, MovieTrackingObject *object,
int framenr, float mat[4][4])
{
MovieTrackingReconstruction *reconstruction;
MovieReconstructedCamera *cameras;
int a;
reconstruction = BKE_tracking_object_get_reconstruction(tracking, object);
cameras = reconstruction->cameras;
a = reconstructed_camera_index_get(reconstruction, framenr, true);
if (a == -1) {
unit_m4(mat);
return;
}
if (cameras[a].framenr != framenr && a > 0 && a < reconstruction->camnr - 1) {
float t = ((float)framenr - cameras[a].framenr) / (cameras[a + 1].framenr - cameras[a].framenr);
blend_m4_m4m4(mat, cameras[a].mat, cameras[a + 1].mat, t);
}
else {
copy_m4_m4(mat, cameras[a].mat);
}
reconstructed_camera_scale_set(object, mat);
}
/*********************** Distortion/Undistortion *************************/
MovieDistortion *BKE_tracking_distortion_new(MovieTracking *tracking,
int calibration_width, int calibration_height)
{
MovieDistortion *distortion;
libmv_CameraIntrinsicsOptions camera_intrinsics_options;
tracking_cameraIntrinscisOptionsFromTracking(tracking,
calibration_width,
calibration_height,
&camera_intrinsics_options);
distortion = MEM_callocN(sizeof(MovieDistortion), "BKE_tracking_distortion_create");
distortion->intrinsics = libmv_cameraIntrinsicsNew(&camera_intrinsics_options);
return distortion;
}
void BKE_tracking_distortion_update(MovieDistortion *distortion, MovieTracking *tracking,
int calibration_width, int calibration_height)
{
libmv_CameraIntrinsicsOptions camera_intrinsics_options;
tracking_cameraIntrinscisOptionsFromTracking(tracking,
calibration_width,
calibration_height,
&camera_intrinsics_options);
libmv_cameraIntrinsicsUpdate(&camera_intrinsics_options, distortion->intrinsics);
}
void BKE_tracking_distortion_set_threads(MovieDistortion *distortion, int threads)
{
libmv_cameraIntrinsicsSetThreads(distortion->intrinsics, threads);
}
MovieDistortion *BKE_tracking_distortion_copy(MovieDistortion *distortion)
{
MovieDistortion *new_distortion;
new_distortion = MEM_callocN(sizeof(MovieDistortion), "BKE_tracking_distortion_create");
new_distortion->intrinsics = libmv_cameraIntrinsicsCopy(distortion->intrinsics);
return new_distortion;
}
ImBuf *BKE_tracking_distortion_exec(MovieDistortion *distortion, MovieTracking *tracking, ImBuf *ibuf,
int calibration_width, int calibration_height, float overscan, bool undistort)
{
ImBuf *resibuf;
BKE_tracking_distortion_update(distortion, tracking, calibration_width, calibration_height);
resibuf = IMB_dupImBuf(ibuf);
if (ibuf->rect_float) {
if (undistort) {
libmv_cameraIntrinsicsUndistortFloat(distortion->intrinsics,
ibuf->rect_float,
ibuf->x, ibuf->y,
overscan,
ibuf->channels,
resibuf->rect_float);
}
else {
libmv_cameraIntrinsicsDistortFloat(distortion->intrinsics,
ibuf->rect_float,
ibuf->x, ibuf->y,
overscan,
ibuf->channels,
resibuf->rect_float);
}
if (ibuf->rect)
imb_freerectImBuf(ibuf);
}
else {
if (undistort) {
libmv_cameraIntrinsicsUndistortByte(distortion->intrinsics,
(unsigned char *)ibuf->rect,
ibuf->x, ibuf->y,
overscan,
ibuf->channels,
(unsigned char *)resibuf->rect);
}
else {
libmv_cameraIntrinsicsDistortByte(distortion->intrinsics,
(unsigned char *)ibuf->rect,
ibuf->x, ibuf->y,
overscan,
ibuf->channels,
(unsigned char *)resibuf->rect);
}
}
return resibuf;
}
void BKE_tracking_distortion_free(MovieDistortion *distortion)
{
libmv_cameraIntrinsicsDestroy(distortion->intrinsics);
MEM_freeN(distortion);
}
void BKE_tracking_distort_v2(MovieTracking *tracking, const float co[2], float r_co[2])
{
MovieTrackingCamera *camera = &tracking->camera;
libmv_CameraIntrinsicsOptions camera_intrinsics_options;
double x, y;
float aspy = 1.0f / tracking->camera.pixel_aspect;
tracking_cameraIntrinscisOptionsFromTracking(tracking,
0, 0,
&camera_intrinsics_options);
/* normalize coords */
x = (co[0] - camera->principal[0]) / camera->focal;
y = (co[1] - camera->principal[1] * aspy) / camera->focal;
libmv_cameraIntrinsicsApply(&camera_intrinsics_options, x, y, &x, &y);
/* result is in image coords already */
r_co[0] = x;
r_co[1] = y;
}
void BKE_tracking_undistort_v2(MovieTracking *tracking, const float co[2], float r_co[2])
{
MovieTrackingCamera *camera = &tracking->camera;
libmv_CameraIntrinsicsOptions camera_intrinsics_options;
double x = co[0], y = co[1];
float aspy = 1.0f / tracking->camera.pixel_aspect;
tracking_cameraIntrinscisOptionsFromTracking(tracking,
0, 0,
&camera_intrinsics_options);
libmv_cameraIntrinsicsInvert(&camera_intrinsics_options, x, y, &x, &y);
r_co[0] = (float)x * camera->focal + camera->principal[0];
r_co[1] = (float)y * camera->focal + camera->principal[1] * aspy;
}
ImBuf *BKE_tracking_undistort_frame(MovieTracking *tracking, ImBuf *ibuf, int calibration_width,
int calibration_height, float overscan)
{
MovieTrackingCamera *camera = &tracking->camera;
if (camera->intrinsics == NULL) {
camera->intrinsics = BKE_tracking_distortion_new(tracking, calibration_width, calibration_height);
}
return BKE_tracking_distortion_exec(camera->intrinsics, tracking, ibuf, calibration_width,
calibration_height, overscan, true);
}
ImBuf *BKE_tracking_distort_frame(MovieTracking *tracking, ImBuf *ibuf, int calibration_width,
int calibration_height, float overscan)
{
MovieTrackingCamera *camera = &tracking->camera;
if (camera->intrinsics == NULL) {
camera->intrinsics = BKE_tracking_distortion_new(tracking, calibration_width, calibration_height);
}
return BKE_tracking_distortion_exec(camera->intrinsics, tracking, ibuf, calibration_width,
calibration_height, overscan, false);
}
void BKE_tracking_max_distortion_delta_across_bound(MovieTracking *tracking, rcti *rect,
bool undistort, float delta[2])
{
int a;
float pos[2], warped_pos[2];
const int coord_delta = 5;
void (*apply_distortion) (MovieTracking *tracking,
const float pos[2], float out[2]);
if (undistort) {
apply_distortion = BKE_tracking_undistort_v2;
}
else {
apply_distortion = BKE_tracking_distort_v2;
}
delta[0] = delta[1] = -FLT_MAX;
for (a = rect->xmin; a <= rect->xmax + coord_delta; a += coord_delta) {
if (a > rect->xmax)
a = rect->xmax;
/* bottom edge */
pos[0] = a;
pos[1] = rect->ymin;
apply_distortion(tracking, pos, warped_pos);
delta[0] = max_ff(delta[0], fabsf(pos[0] - warped_pos[0]));
delta[1] = max_ff(delta[1], fabsf(pos[1] - warped_pos[1]));
/* top edge */
pos[0] = a;
pos[1] = rect->ymax;
apply_distortion(tracking, pos, warped_pos);
delta[0] = max_ff(delta[0], fabsf(pos[0] - warped_pos[0]));
delta[1] = max_ff(delta[1], fabsf(pos[1] - warped_pos[1]));
if (a >= rect->xmax)
break;
}
for (a = rect->ymin; a <= rect->ymax + coord_delta; a += coord_delta) {
if (a > rect->ymax)
a = rect->ymax;
/* left edge */
pos[0] = rect->xmin;
pos[1] = a;
apply_distortion(tracking, pos, warped_pos);
delta[0] = max_ff(delta[0], fabsf(pos[0] - warped_pos[0]));
delta[1] = max_ff(delta[1], fabsf(pos[1] - warped_pos[1]));
/* right edge */
pos[0] = rect->xmax;
pos[1] = a;
apply_distortion(tracking, pos, warped_pos);
delta[0] = max_ff(delta[0], fabsf(pos[0] - warped_pos[0]));
delta[1] = max_ff(delta[1], fabsf(pos[1] - warped_pos[1]));
if (a >= rect->ymax)
break;
}
}
/*********************** Image sampling *************************/
static void disable_imbuf_channels(ImBuf *ibuf, MovieTrackingTrack *track, bool grayscale)
{
BKE_tracking_disable_channels(ibuf, track->flag & TRACK_DISABLE_RED,
track->flag & TRACK_DISABLE_GREEN,
track->flag & TRACK_DISABLE_BLUE, grayscale);
}
ImBuf *BKE_tracking_sample_pattern(int frame_width, int frame_height, ImBuf *search_ibuf,
MovieTrackingTrack *track, MovieTrackingMarker *marker,
bool from_anchor, bool use_mask, int num_samples_x, int num_samples_y,
float pos[2])
{
ImBuf *pattern_ibuf;
double src_pixel_x[5], src_pixel_y[5];
double warped_position_x, warped_position_y;
float *mask = NULL;
if (num_samples_x <= 0 || num_samples_y <= 0)
return NULL;
pattern_ibuf = IMB_allocImBuf(num_samples_x, num_samples_y,
32,
search_ibuf->rect_float ? IB_rectfloat : IB_rect);
tracking_get_marker_coords_for_tracking(frame_width, frame_height, marker, src_pixel_x, src_pixel_y);
/* from_anchor means search buffer was obtained for an anchored position,
* which means applying track offset rounded to pixel space (we could not
* store search buffer with sub-pixel precision)
*
* in this case we need to alter coordinates a bit, to compensate rounded
* fractional part of offset
*/
if (from_anchor) {
int a;
for (a = 0; a < 5; a++) {
src_pixel_x[a] += (double) ((track->offset[0] * frame_width) - ((int) (track->offset[0] * frame_width)));
src_pixel_y[a] += (double) ((track->offset[1] * frame_height) - ((int) (track->offset[1] * frame_height)));
/* when offset is negative, rounding happens in opposite direction */
if (track->offset[0] < 0.0f)
src_pixel_x[a] += 1.0;
if (track->offset[1] < 0.0f)
src_pixel_y[a] += 1.0;
}
}
if (use_mask) {
mask = BKE_tracking_track_get_mask(frame_width, frame_height, track, marker);
}
if (search_ibuf->rect_float) {
libmv_samplePlanarPatchFloat(search_ibuf->rect_float,
search_ibuf->x, search_ibuf->y, 4,
src_pixel_x, src_pixel_y,
num_samples_x, num_samples_y,
mask,
pattern_ibuf->rect_float,
&warped_position_x,
&warped_position_y);
}
else {
libmv_samplePlanarPatchByte((unsigned char *) search_ibuf->rect,
search_ibuf->x, search_ibuf->y, 4,
src_pixel_x, src_pixel_y,
num_samples_x, num_samples_y,
mask,
(unsigned char *) pattern_ibuf->rect,
&warped_position_x,
&warped_position_y);
}
if (pos) {
pos[0] = warped_position_x;
pos[1] = warped_position_y;
}
if (mask) {
MEM_freeN(mask);
}
return pattern_ibuf;
}
ImBuf *BKE_tracking_get_pattern_imbuf(ImBuf *ibuf, MovieTrackingTrack *track, MovieTrackingMarker *marker,
bool anchored, bool disable_channels)
{
ImBuf *pattern_ibuf, *search_ibuf;
float pat_min[2], pat_max[2];
int num_samples_x, num_samples_y;
BKE_tracking_marker_pattern_minmax(marker, pat_min, pat_max);
num_samples_x = (pat_max[0] - pat_min[0]) * ibuf->x;
num_samples_y = (pat_max[1] - pat_min[1]) * ibuf->y;
search_ibuf = BKE_tracking_get_search_imbuf(ibuf, track, marker, anchored, disable_channels);
if (search_ibuf) {
pattern_ibuf = BKE_tracking_sample_pattern(ibuf->x, ibuf->y, search_ibuf, track, marker,
anchored, false, num_samples_x, num_samples_y, NULL);
IMB_freeImBuf(search_ibuf);
}
else {
pattern_ibuf = NULL;
}
return pattern_ibuf;
}
ImBuf *BKE_tracking_get_search_imbuf(ImBuf *ibuf, MovieTrackingTrack *track, MovieTrackingMarker *marker,
bool anchored, bool disable_channels)
{
ImBuf *searchibuf;
int x, y, w, h;
float search_origin[2];
tracking_get_search_origin_frame_pixel(ibuf->x, ibuf->y, marker, search_origin);
x = search_origin[0];
y = search_origin[1];
if (anchored) {
x += track->offset[0] * ibuf->x;
y += track->offset[1] * ibuf->y;
}
w = (marker->search_max[0] - marker->search_min[0]) * ibuf->x;
h = (marker->search_max[1] - marker->search_min[1]) * ibuf->y;
if (w <= 0 || h <= 0)
return NULL;
searchibuf = IMB_allocImBuf(w, h, 32, ibuf->rect_float ? IB_rectfloat : IB_rect);
IMB_rectcpy(searchibuf, ibuf, 0, 0, x, y, w, h);
if (disable_channels) {
if ((track->flag & TRACK_PREVIEW_GRAYSCALE) ||
(track->flag & TRACK_DISABLE_RED) ||
(track->flag & TRACK_DISABLE_GREEN) ||
(track->flag & TRACK_DISABLE_BLUE))
{
disable_imbuf_channels(searchibuf, track, true);
}
}
return searchibuf;
}
/* zap channels from the imbuf that are disabled by the user. this can lead to
* better tracks sometimes. however, instead of simply zeroing the channels
* out, do a partial grayscale conversion so the display is better.
*/
void BKE_tracking_disable_channels(ImBuf *ibuf, bool disable_red, bool disable_green, bool disable_blue,
bool grayscale)
{
int x, y;
float scale;
if (!disable_red && !disable_green && !disable_blue && !grayscale)
return;
/* if only some components are selected, it's important to rescale the result
* appropriately so that e.g. if only blue is selected, it's not zeroed out.
*/
scale = (disable_red ? 0.0f : 0.2126f) +
(disable_green ? 0.0f : 0.7152f) +
(disable_blue ? 0.0f : 0.0722f);
for (y = 0; y < ibuf->y; y++) {
for (x = 0; x < ibuf->x; x++) {
int pixel = ibuf->x * y + x;
if (ibuf->rect_float) {
float *rrgbf = ibuf->rect_float + pixel * 4;
float r = disable_red ? 0.0f : rrgbf[0];
float g = disable_green ? 0.0f : rrgbf[1];
float b = disable_blue ? 0.0f : rrgbf[2];
if (grayscale) {
float gray = (0.2126f * r + 0.7152f * g + 0.0722f * b) / scale;
rrgbf[0] = rrgbf[1] = rrgbf[2] = gray;
}
else {
rrgbf[0] = r;
rrgbf[1] = g;
rrgbf[2] = b;
}
}
else {
char *rrgb = (char *)ibuf->rect + pixel * 4;
char r = disable_red ? 0 : rrgb[0];
char g = disable_green ? 0 : rrgb[1];
char b = disable_blue ? 0 : rrgb[2];
if (grayscale) {
float gray = (0.2126f * r + 0.7152f * g + 0.0722f * b) / scale;
rrgb[0] = rrgb[1] = rrgb[2] = gray;
}
else {
rrgb[0] = r;
rrgb[1] = g;
rrgb[2] = b;
}
}
}
}
if (ibuf->rect_float)
ibuf->userflags |= IB_RECT_INVALID;
}
/*********************** Dopesheet functions *************************/
/* ** Channels sort comparators ** */
static int channels_alpha_sort(const void *a, const void *b)
{
const MovieTrackingDopesheetChannel *channel_a = a;
const MovieTrackingDopesheetChannel *channel_b = b;
if (BLI_strcasecmp(channel_a->track->name, channel_b->track->name) > 0)
return 1;
else
return 0;
}
static int channels_total_track_sort(const void *a, const void *b)
{
const MovieTrackingDopesheetChannel *channel_a = a;
const MovieTrackingDopesheetChannel *channel_b = b;
if (channel_a->total_frames > channel_b->total_frames)
return 1;
else
return 0;
}
static int channels_longest_segment_sort(const void *a, const void *b)
{
const MovieTrackingDopesheetChannel *channel_a = a;
const MovieTrackingDopesheetChannel *channel_b = b;
if (channel_a->max_segment > channel_b->max_segment)
return 1;
else
return 0;
}
static int channels_average_error_sort(const void *a, const void *b)
{
const MovieTrackingDopesheetChannel *channel_a = a;
const MovieTrackingDopesheetChannel *channel_b = b;
if (channel_a->track->error > channel_b->track->error)
return 1;
else
return 0;
}
static int channels_alpha_inverse_sort(const void *a, const void *b)
{
if (channels_alpha_sort(a, b))
return 0;
else
return 1;
}
static int channels_total_track_inverse_sort(const void *a, const void *b)
{
if (channels_total_track_sort(a, b))
return 0;
else
return 1;
}
static int channels_longest_segment_inverse_sort(const void *a, const void *b)
{
if (channels_longest_segment_sort(a, b))
return 0;
else
return 1;
}
static int channels_average_error_inverse_sort(const void *a, const void *b)
{
const MovieTrackingDopesheetChannel *channel_a = a;
const MovieTrackingDopesheetChannel *channel_b = b;
if (channel_a->track->error < channel_b->track->error)
return 1;
else
return 0;
}
/* Calculate frames segments at which track is tracked continuously. */
static void tracking_dopesheet_channels_segments_calc(MovieTrackingDopesheetChannel *channel)
{
MovieTrackingTrack *track = channel->track;
int i, segment;
channel->tot_segment = 0;
channel->max_segment = 0;
channel->total_frames = 0;
/* TODO(sergey): looks a bit code-duplicated, need to look into
* logic de-duplication here.
*/
/* count */
i = 0;
while (i < track->markersnr) {
MovieTrackingMarker *marker = &track->markers[i];
if ((marker->flag & MARKER_DISABLED) == 0) {
int prev_fra = marker->framenr, len = 0;
i++;
while (i < track->markersnr) {
marker = &track->markers[i];
if (marker->framenr != prev_fra + 1)
break;
if (marker->flag & MARKER_DISABLED)
break;
prev_fra = marker->framenr;
len++;
i++;
}
channel->tot_segment++;
}
i++;
}
if (!channel->tot_segment)
return;
channel->segments = MEM_callocN(2 * sizeof(int) * channel->tot_segment, "tracking channel segments");
/* create segments */
i = 0;
segment = 0;
while (i < track->markersnr) {
MovieTrackingMarker *marker = &track->markers[i];
if ((marker->flag & MARKER_DISABLED) == 0) {
MovieTrackingMarker *start_marker = marker;
int prev_fra = marker->framenr, len = 0;
i++;
while (i < track->markersnr) {
marker = &track->markers[i];
if (marker->framenr != prev_fra + 1)
break;
if (marker->flag & MARKER_DISABLED)
break;
prev_fra = marker->framenr;
channel->total_frames++;
len++;
i++;
}
channel->segments[2 * segment] = start_marker->framenr;
channel->segments[2 * segment + 1] = start_marker->framenr + len;
channel->max_segment = max_ii(channel->max_segment, len);
segment++;
}
i++;
}
}
/* Create channels for tracks and calculate tracked segments for them. */
static void tracking_dopesheet_channels_calc(MovieTracking *tracking)
{
MovieTrackingObject *object = BKE_tracking_object_get_active(tracking);
MovieTrackingDopesheet *dopesheet = &tracking->dopesheet;
MovieTrackingTrack *track;
MovieTrackingReconstruction *reconstruction =
BKE_tracking_object_get_reconstruction(tracking, object);
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
bool sel_only = (dopesheet->flag & TRACKING_DOPE_SELECTED_ONLY) != 0;
bool show_hidden = (dopesheet->flag & TRACKING_DOPE_SHOW_HIDDEN) != 0;
for (track = tracksbase->first; track; track = track->next) {
MovieTrackingDopesheetChannel *channel;
if (!show_hidden && (track->flag & TRACK_HIDDEN) != 0)
continue;
if (sel_only && !TRACK_SELECTED(track))
continue;
channel = MEM_callocN(sizeof(MovieTrackingDopesheetChannel), "tracking dopesheet channel");
channel->track = track;
if (reconstruction->flag & TRACKING_RECONSTRUCTED) {
BLI_snprintf(channel->name, sizeof(channel->name), "%s (%.4f)", track->name, track->error);
}
else {
BLI_strncpy(channel->name, track->name, sizeof(channel->name));
}
tracking_dopesheet_channels_segments_calc(channel);
BLI_addtail(&dopesheet->channels, channel);
dopesheet->tot_channel++;
}
}
/* Sot dopesheet channels using given method (name, average error, total coverage,
* longest tracked segment) and could also inverse the list if it's enabled.
*/
static void tracking_dopesheet_channels_sort(MovieTracking *tracking, int sort_method, bool inverse)
{
MovieTrackingDopesheet *dopesheet = &tracking->dopesheet;
if (inverse) {
if (sort_method == TRACKING_DOPE_SORT_NAME) {
BLI_sortlist(&dopesheet->channels, channels_alpha_inverse_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_LONGEST) {
BLI_sortlist(&dopesheet->channels, channels_longest_segment_inverse_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_TOTAL) {
BLI_sortlist(&dopesheet->channels, channels_total_track_inverse_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_AVERAGE_ERROR) {
BLI_sortlist(&dopesheet->channels, channels_average_error_inverse_sort);
}
}
else {
if (sort_method == TRACKING_DOPE_SORT_NAME) {
BLI_sortlist(&dopesheet->channels, channels_alpha_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_LONGEST) {
BLI_sortlist(&dopesheet->channels, channels_longest_segment_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_TOTAL) {
BLI_sortlist(&dopesheet->channels, channels_total_track_sort);
}
else if (sort_method == TRACKING_DOPE_SORT_AVERAGE_ERROR) {
BLI_sortlist(&dopesheet->channels, channels_average_error_sort);
}
}
}
static int coverage_from_count(int count)
{
/* Values are actually arbitrary here, probably need to be tweaked. */
if (count < 8)
return TRACKING_COVERAGE_BAD;
else if (count < 16)
return TRACKING_COVERAGE_ACCEPTABLE;
return TRACKING_COVERAGE_OK;
}
/* Calculate coverage of frames with tracks, this information
* is used to highlight dopesheet background depending on how
* many tracks exists on the frame.
*/
static void tracking_dopesheet_calc_coverage(MovieTracking *tracking)
{
MovieTrackingDopesheet *dopesheet = &tracking->dopesheet;
MovieTrackingObject *object = BKE_tracking_object_get_active(tracking);
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track;
int frames, start_frame = INT_MAX, end_frame = -INT_MAX;
int *per_frame_counter;
int prev_coverage, last_segment_frame;
int i;
/* find frame boundaries */
for (track = tracksbase->first; track; track = track->next) {
start_frame = min_ii(start_frame, track->markers[0].framenr);
end_frame = max_ii(end_frame, track->markers[track->markersnr - 1].framenr);
}
frames = end_frame - start_frame + 1;
/* this is a per-frame counter of markers (how many markers belongs to the same frame) */
per_frame_counter = MEM_callocN(sizeof(int) * frames, "per frame track counter");
/* find per-frame markers count */
for (track = tracksbase->first; track; track = track->next) {
int i;
for (i = 0; i < track->markersnr; i++) {
MovieTrackingMarker *marker = &track->markers[i];
/* TODO: perhaps we need to add check for non-single-frame track here */
if ((marker->flag & MARKER_DISABLED) == 0)
per_frame_counter[marker->framenr - start_frame]++;
}
}
/* convert markers count to coverage and detect segments with the same coverage */
prev_coverage = coverage_from_count(per_frame_counter[0]);
last_segment_frame = start_frame;
/* means only disabled tracks in the beginning, could be ignored */
if (!per_frame_counter[0])
prev_coverage = TRACKING_COVERAGE_OK;
for (i = 1; i < frames; i++) {
int coverage = coverage_from_count(per_frame_counter[i]);
/* means only disabled tracks in the end, could be ignored */
if (i == frames - 1 && !per_frame_counter[i])
coverage = TRACKING_COVERAGE_OK;
if (coverage != prev_coverage || i == frames - 1) {
MovieTrackingDopesheetCoverageSegment *coverage_segment;
int end_segment_frame = i - 1 + start_frame;
if (end_segment_frame == last_segment_frame)
end_segment_frame++;
coverage_segment = MEM_callocN(sizeof(MovieTrackingDopesheetCoverageSegment), "tracking coverage segment");
coverage_segment->coverage = prev_coverage;
coverage_segment->start_frame = last_segment_frame;
coverage_segment->end_frame = end_segment_frame;
BLI_addtail(&dopesheet->coverage_segments, coverage_segment);
last_segment_frame = end_segment_frame;
}
prev_coverage = coverage;
}
MEM_freeN(per_frame_counter);
}
/* Tag dopesheet for update, actual update will happen later
* when it'll be actually needed.
*/
void BKE_tracking_dopesheet_tag_update(MovieTracking *tracking)
{
MovieTrackingDopesheet *dopesheet = &tracking->dopesheet;
dopesheet->ok = false;
}
/* Do dopesheet update, if update is not needed nothing will happen. */
void BKE_tracking_dopesheet_update(MovieTracking *tracking)
{
MovieTrackingDopesheet *dopesheet = &tracking->dopesheet;
short sort_method = dopesheet->sort_method;
bool inverse = (dopesheet->flag & TRACKING_DOPE_SORT_INVERSE) != 0;
if (dopesheet->ok)
return;
tracking_dopesheet_free(dopesheet);
/* channels */
tracking_dopesheet_channels_calc(tracking);
tracking_dopesheet_channels_sort(tracking, sort_method, inverse);
/* frame coverage */
tracking_dopesheet_calc_coverage(tracking);
dopesheet->ok = true;
}
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