--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2016 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "affine.h"
+#include "bcsignals.h"
+#include "clip.h"
+#include "motionscan.h"
+#include "rotatescan.h"
+#include "motion.h"
+#include "mutex.h"
+#include "vframe.h"
+
+
+
+
+
+
+
+
+
+RotateScanPackage::RotateScanPackage()
+{
+}
+
+
+RotateScanUnit::RotateScanUnit(RotateScan *server, MotionMain *plugin)
+ : LoadClient(server)
+{
+ this->server = server;
+ this->plugin = plugin;
+ rotater = 0;
+ temp = 0;
+}
+
+RotateScanUnit::~RotateScanUnit()
+{
+ delete rotater;
+ delete temp;
+}
+
+void RotateScanUnit::process_package(LoadPackage *package)
+{
+ if(server->skip) return;
+ RotateScanPackage *pkg = (RotateScanPackage*)package;
+
+ if((pkg->difference = server->get_cache(pkg->angle)) < 0)
+ {
+//printf("RotateScanUnit::process_package %d\n", __LINE__);
+ int color_model = server->previous_frame->get_color_model();
+ int pixel_size = BC_CModels::calculate_pixelsize(color_model);
+ int row_bytes = server->previous_frame->get_bytes_per_line();
+
+ if(!rotater)
+ rotater = new AffineEngine(1, 1);
+ if(!temp) temp = new VFrame(0,
+ -1,
+ server->previous_frame->get_w(),
+ server->previous_frame->get_h(),
+ color_model,
+ -1);
+//printf("RotateScanUnit::process_package %d\n", __LINE__);
+
+
+// Rotate original block size
+// rotater->set_viewport(server->block_x1,
+// server->block_y1,
+// server->block_x2 - server->block_x1,
+// server->block_y2 - server->block_y1);
+ rotater->set_in_viewport(server->block_x1,
+ server->block_y1,
+ server->block_x2 - server->block_x1,
+ server->block_y2 - server->block_y1);
+ rotater->set_out_viewport(server->block_x1,
+ server->block_y1,
+ server->block_x2 - server->block_x1,
+ server->block_y2 - server->block_y1);
+// rotater->set_pivot(server->block_x, server->block_y);
+ rotater->set_in_pivot(server->block_x, server->block_y);
+ rotater->set_out_pivot(server->block_x, server->block_y);
+//printf("RotateScanUnit::process_package %d\n", __LINE__);
+ rotater->rotate(temp,
+ server->previous_frame,
+ pkg->angle);
+
+// Scan reduced block size
+//plugin->output_frame->copy_from(server->current_frame);
+//plugin->output_frame->copy_from(temp);
+// printf("RotateScanUnit::process_package %d %d %d %d %d\n",
+// __LINE__,
+// server->scan_x,
+// server->scan_y,
+// server->scan_w,
+// server->scan_h);
+// Clamp coordinates
+ int x1 = server->scan_x;
+ int y1 = server->scan_y;
+ int x2 = x1 + server->scan_w;
+ int y2 = y1 + server->scan_h;
+ x2 = MIN(temp->get_w(), x2);
+ y2 = MIN(temp->get_h(), y2);
+ x2 = MIN(server->current_frame->get_w(), x2);
+ y2 = MIN(server->current_frame->get_h(), y2);
+ x1 = MAX(0, x1);
+ y1 = MAX(0, y1);
+
+ if(x2 > x1 && y2 > y1)
+ {
+ pkg->difference = MotionScan::abs_diff(
+ temp->get_rows()[y1] + x1 * pixel_size,
+ server->current_frame->get_rows()[y1] + x1 * pixel_size,
+ row_bytes,
+ x2 - x1,
+ y2 - y1,
+ color_model);
+//printf("RotateScanUnit::process_package %d\n", __LINE__);
+ server->put_cache(pkg->angle, pkg->difference);
+ }
+
+// printf("RotateScanUnit::process_package 10 x=%d y=%d w=%d h=%d block_x=%d block_y=%d angle=%f scan_w=%d scan_h=%d diff=%lld\n",
+// server->block_x1,
+// server->block_y1,
+// server->block_x2 - server->block_x1,
+// server->block_y2 - server->block_y1,
+// server->block_x,
+// server->block_y,
+// pkg->angle,
+// server->scan_w,
+// server->scan_h,
+// pkg->difference);
+ }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+RotateScan::RotateScan(MotionMain *plugin,
+ int total_clients,
+ int total_packages)
+ : LoadServer(
+//1, 1
+total_clients, total_packages
+)
+{
+ this->plugin = plugin;
+ cache_lock = new Mutex("RotateScan::cache_lock");
+}
+
+
+RotateScan::~RotateScan()
+{
+ delete cache_lock;
+}
+
+void RotateScan::init_packages()
+{
+ for(int i = 0; i < get_total_packages(); i++)
+ {
+ RotateScanPackage *pkg = (RotateScanPackage*)get_package(i);
+ pkg->angle = i *
+ (scan_angle2 - scan_angle1) /
+ (total_steps - 1) +
+ scan_angle1;
+ }
+}
+
+LoadClient* RotateScan::new_client()
+{
+ return new RotateScanUnit(this, plugin);
+}
+
+LoadPackage* RotateScan::new_package()
+{
+ return new RotateScanPackage;
+}
+
+
+float RotateScan::scan_frame(VFrame *previous_frame,
+ VFrame *current_frame,
+ int block_x,
+ int block_y)
+{
+ skip = 0;
+ this->block_x = block_x;
+ this->block_y = block_y;
+
+//printf("RotateScan::scan_frame %d\n", __LINE__);
+ switch(plugin->config.tracking_type)
+ {
+ case MotionScan::NO_CALCULATE:
+ result = plugin->config.rotation_center;
+ skip = 1;
+ break;
+
+ case MotionScan::LOAD:
+ {
+ char string[BCTEXTLEN];
+ sprintf(string,
+ "%s%06ld",
+ ROTATION_FILE,
+ plugin->get_source_position());
+ FILE *input = fopen(string, "r");
+ if(input)
+ {
+ int temp = fscanf(input, "%f", &result);
+ fclose(input);
+ skip = 1;
+ }
+ else
+ {
+ perror("RotateScan::scan_frame LOAD");
+ }
+ break;
+ }
+ }
+
+
+
+
+
+
+
+
+ this->previous_frame = previous_frame;
+ this->current_frame = current_frame;
+ int w = current_frame->get_w();
+ int h = current_frame->get_h();
+ int block_w = w * plugin->config.global_block_w / 100;
+ int block_h = h * plugin->config.global_block_h / 100;
+
+ if(this->block_x - block_w / 2 < 0) block_w = this->block_x * 2;
+ if(this->block_y - block_h / 2 < 0) block_h = this->block_y * 2;
+ if(this->block_x + block_w / 2 > w) block_w = (w - this->block_x) * 2;
+ if(this->block_y + block_h / 2 > h) block_h = (h - this->block_y) * 2;
+
+ block_x1 = this->block_x - block_w / 2;
+ block_x2 = this->block_x + block_w / 2;
+ block_y1 = this->block_y - block_h / 2;
+ block_y2 = this->block_y + block_h / 2;
+
+
+// Calculate the maximum area available to scan after rotation.
+// Must be calculated from the starting range because of cache.
+// Get coords of rectangle after rotation.
+ double center_x = this->block_x;
+ double center_y = this->block_y;
+ double max_angle = plugin->config.rotation_range;
+ double base_angle1 = atan((float)block_h / block_w);
+ double base_angle2 = atan((float)block_w / block_h);
+ double target_angle1 = base_angle1 + max_angle * 2 * M_PI / 360;
+ double target_angle2 = base_angle2 + max_angle * 2 * M_PI / 360;
+ double radius = sqrt(block_w * block_w + block_h * block_h) / 2;
+ double x1 = center_x - cos(target_angle1) * radius;
+ double y1 = center_y - sin(target_angle1) * radius;
+ double x2 = center_x + sin(target_angle2) * radius;
+ double y2 = center_y - cos(target_angle2) * radius;
+ double x3 = center_x - sin(target_angle2) * radius;
+ double y3 = center_y + cos(target_angle2) * radius;
+
+// Track top edge to find greatest area.
+ double max_area1 = 0;
+ double max_x1 = 0;
+ double max_y1 = 0;
+ for(double x = x1; x < x2; x++)
+ {
+ double y = y1 + (y2 - y1) * (x - x1) / (x2 - x1);
+ if(x >= center_x && x < block_x2 && y >= block_y1 && y < center_y)
+ {
+ double area = fabs(x - center_x) * fabs(y - center_y);
+ if(area > max_area1)
+ {
+ max_area1 = area;
+ max_x1 = x;
+ max_y1 = y;
+ }
+ }
+ }
+
+// Track left edge to find greatest area.
+ double max_area2 = 0;
+ double max_x2 = 0;
+ double max_y2 = 0;
+ for(double y = y1; y < y3; y++)
+ {
+ double x = x1 + (x3 - x1) * (y - y1) / (y3 - y1);
+ if(x >= block_x1 && x < center_x && y >= block_y1 && y < center_y)
+ {
+ double area = fabs(x - center_x) * fabs(y - center_y);
+ if(area > max_area2)
+ {
+ max_area2 = area;
+ max_x2 = x;
+ max_y2 = y;
+ }
+ }
+ }
+
+ double max_x, max_y;
+ max_x = max_x2;
+ max_y = max_y1;
+
+// Get reduced scan coords
+ scan_w = (int)(fabs(max_x - center_x) * 2);
+ scan_h = (int)(fabs(max_y - center_y) * 2);
+ scan_x = (int)(center_x - scan_w / 2);
+ scan_y = (int)(center_y - scan_h / 2);
+// printf("RotateScan::scan_frame center=%d,%d scan=%d,%d %dx%d\n",
+// this->block_x, this->block_y, scan_x, scan_y, scan_w, scan_h);
+// printf(" angle_range=%f block= %d,%d,%d,%d\n", max_angle, block_x1, block_y1, block_x2, block_y2);
+
+// Determine min angle from size of block
+ double angle1 = atan((double)block_h / block_w);
+ double angle2 = atan((double)(block_h - 1) / (block_w + 1));
+ double min_angle = fabs(angle2 - angle1) / OVERSAMPLE;
+ min_angle = MAX(min_angle, MIN_ANGLE);
+
+//printf("RotateScan::scan_frame %d min_angle=%f\n", __LINE__, min_angle * 360 / 2 / M_PI);
+
+ cache.remove_all_objects();
+
+
+ if(!skip)
+ {
+ if(previous_frame->data_matches(current_frame))
+ {
+//printf("RotateScan::scan_frame: frames match. Skipping.\n");
+ result = plugin->config.rotation_center;
+ skip = 1;
+ }
+ }
+
+ if(!skip)
+ {
+// Initial search range
+ float angle_range = max_angle;
+ result = plugin->config.rotation_center;
+ total_steps = plugin->config.rotate_positions;
+
+
+ while(angle_range >= min_angle * total_steps)
+ {
+ scan_angle1 = result - angle_range;
+ scan_angle2 = result + angle_range;
+
+
+ set_package_count(total_steps);
+//set_package_count(1);
+ process_packages();
+
+ int64_t min_difference = -1;
+ for(int i = 0; i < get_total_packages(); i++)
+ {
+ RotateScanPackage *pkg = (RotateScanPackage*)get_package(i);
+ if(pkg->difference < min_difference || min_difference == -1)
+ {
+ min_difference = pkg->difference;
+ result = pkg->angle;
+ }
+//break;
+ }
+
+ angle_range /= 2;
+
+//break;
+ }
+ }
+
+//printf("RotateScan::scan_frame %d\n", __LINE__);
+
+ if(!skip && plugin->config.tracking_type == MotionScan::SAVE)
+ {
+ char string[BCTEXTLEN];
+ sprintf(string,
+ "%s%06ld",
+ ROTATION_FILE,
+ plugin->get_source_position());
+ FILE *output = fopen(string, "w");
+ if(output)
+ {
+ fprintf(output, "%f\n", result);
+ fclose(output);
+ }
+ else
+ {
+ perror("RotateScan::scan_frame SAVE");
+ }
+ }
+
+//printf("RotateScan::scan_frame %d angle=%f\n", __LINE__, result);
+
+
+
+ return result;
+}
+
+int64_t RotateScan::get_cache(float angle)
+{
+ int64_t result = -1;
+ cache_lock->lock("RotateScan::get_cache");
+ for(int i = 0; i < cache.total; i++)
+ {
+ RotateScanCache *ptr = cache.values[i];
+ if(fabs(ptr->angle - angle) <= MIN_ANGLE)
+ {
+ result = ptr->difference;
+ break;
+ }
+ }
+ cache_lock->unlock();
+ return result;
+}
+
+void RotateScan::put_cache(float angle, int64_t difference)
+{
+ RotateScanCache *ptr = new RotateScanCache(angle, difference);
+ cache_lock->lock("RotateScan::put_cache");
+ cache.append(ptr);
+ cache_lock->unlock();
+}
+
+
+
+
+
+
+
+
+
+RotateScanCache::RotateScanCache(float angle, int64_t difference)
+{
+ this->angle = angle;
+ this->difference = difference;
+}
+
+
+
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