diff options
Diffstat (limited to 'source/blender/blenkernel/intern/tracking.c')
| -rw-r--r-- | source/blender/blenkernel/intern/tracking.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/tracking.c b/source/blender/blenkernel/intern/tracking.c index 8b81e474e76..1a7458f531c 100644 --- a/source/blender/blenkernel/intern/tracking.c +++ b/source/blender/blenkernel/intern/tracking.c @@ -141,8 +141,10 @@ static void tracking_dopesheet_free(MovieTrackingDopesheet *dopesheet) } BLI_freelistN(&dopesheet->channels); + BLI_freelistN(&dopesheet->coverage_segments); dopesheet->channels.first = dopesheet->channels.last = NULL; + dopesheet->coverage_segments.first = dopesheet->coverage_segments.last = NULL; dopesheet->tot_channel = 0; } @@ -1605,6 +1607,67 @@ ImBuf *BKE_tracking_distort_frame(MovieTracking *tracking, ImBuf *ibuf, int cali calibration_height, overscan, FALSE); } +void BKE_tracking_max_undistortion_delta_across_bound(MovieTracking *tracking, rcti *rect, float delta[2]) +{ + int a; + float pos[2], warped_pos[2]; + const int coord_delta = 5; + + 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; + + BKE_tracking_undistort_v2(tracking, pos, warped_pos); + + delta[0] = max_ff(delta[0], fabs(pos[0] - warped_pos[0])); + delta[1] = max_ff(delta[1], fabs(pos[1] - warped_pos[1])); + + /* top edge */ + pos[0] = a; + pos[1] = rect->ymax; + + BKE_tracking_undistort_v2(tracking, pos, warped_pos); + + delta[0] = max_ff(delta[0], fabs(pos[0] - warped_pos[0])); + delta[1] = max_ff(delta[1], fabs(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; + + BKE_tracking_undistort_v2(tracking, pos, warped_pos); + + delta[0] = max_ff(delta[0], fabs(pos[0] - warped_pos[0])); + delta[1] = max_ff(delta[1], fabs(pos[1] - warped_pos[1])); + + /* right edge */ + pos[0] = rect->xmax; + pos[1] = a; + + BKE_tracking_undistort_v2(tracking, pos, warped_pos); + + delta[0] = max_ff(delta[0], fabs(pos[0] - warped_pos[0])); + delta[1] = max_ff(delta[1], fabs(pos[1] - warped_pos[1])); + + if (a >= rect->ymax) + break; + } +} + /*********************** Image sampling *************************/ static void disable_imbuf_channels(ImBuf *ibuf, MovieTrackingTrack *track, int grayscale) @@ -3723,6 +3786,88 @@ static void tracking_dopesheet_sort(MovieTracking *tracking, int sort_method, in } } +static int coverage_from_count(int count) +{ + if (count < 8) + return TRACKING_COVERAGE_BAD; + else if (count < 16) + return TRACKING_COVERAGE_ACCEPTABLE; + return TRACKING_COVERAGE_OK; +} + +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); +} + void BKE_tracking_dopesheet_tag_update(MovieTracking *tracking) { MovieTrackingDopesheet *dopesheet = &tracking->dopesheet; @@ -3750,6 +3895,7 @@ void BKE_tracking_dopesheet_update(MovieTracking *tracking) reconstruction = BKE_tracking_object_get_reconstruction(tracking, object); + /* channels */ for (track = tracksbase->first; track; track = track->next) { MovieTrackingDopesheetChannel *channel; @@ -3777,5 +3923,8 @@ void BKE_tracking_dopesheet_update(MovieTracking *tracking) tracking_dopesheet_sort(tracking, sort_method, inverse); + /* frame coverage */ + tracking_dopesheet_calc_coverage(tracking); + dopesheet->ok = TRUE; } |