+int MWindow::normalize_speed(EDL *old_edl, EDL *new_edl)
+{
+ int result = 0;
+ Track *old_track = old_edl->tracks->first;
+ Track *new_track = new_edl->tracks->first;
+ for( ; old_track && new_track; old_track=old_track->next, new_track=new_track->next ) {
+ if( old_track->data_type != new_track->data_type ) continue;
+ FloatAutos *old_speeds = (FloatAutos *)old_track->automation->autos[AUTOMATION_SPEED];
+ FloatAutos *new_speeds = (FloatAutos *)new_track->automation->autos[AUTOMATION_SPEED];
+ if( !old_speeds || !new_speeds ) continue;
+ FloatAuto *old_speed = (FloatAuto *)old_speeds->first;
+ FloatAuto *new_speed = (FloatAuto *)new_speeds->first;
+ while( old_speed && new_speed && old_speed->equals(new_speed) ) {
+ old_speed = (FloatAuto *)old_speed->next;
+ new_speed = (FloatAuto *)new_speed->next;
+ }
+ Edit *old_edit = old_track->edits->first;
+ Edit *new_edit = new_track->edits->first;
+ for( ; old_edit && new_edit; old_edit=old_edit->next, new_edit=new_edit->next ) {
+ int64_t edit_start = old_edit->startproject, edit_end = edit_start + old_edit->length;
+ if( old_speed || new_speed ) {
+ double orig_start = old_speeds->automation_integral(0, edit_start, PLAY_FORWARD);
+ double orig_end = old_speeds->automation_integral(0, edit_end, PLAY_FORWARD);
+ edit_start = new_speeds->speed_position(orig_start);
+ edit_end = new_speeds->speed_position(orig_end);
+ result = 1;
+ }
+ new_edit->startproject = edit_start;
+ new_edit->length = edit_end - edit_start;
+ }
+ }
+ return result;
+}
+
+void MWindow::speed_before()
+{
+ if( !speed_edl ) {
+ speed_edl = new EDL;
+ speed_edl->create_objects();
+ }
+ speed_edl->copy_all(edl);
+}
+
+int MWindow::speed_after(int done)
+{
+ int result = 0;
+ if( speed_edl ) {
+ if( done >= 0 )
+ result = normalize_speed(speed_edl, edl);
+ if( done != 0 ) {
+ speed_edl->remove_user();
+ speed_edl = 0;
+ }
+ }
+ return result;
+}