--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 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 "bcprogressbox.h"
+#include "dcoffset.h"
+#include "language.h"
+#include "mutex.h"
+#include "recordgui.h"
+
+
+
+DC_Offset::DC_Offset()
+ : Thread()
+{
+ getting_dc_offset = 0;
+ for(int i = 0; i < MAXCHANNELS; i++) dc_offset[i] = 0;
+ dc_offset_lock = new Mutex;
+}
+
+DC_Offset::~DC_Offset()
+{
+ delete dc_offset_lock;
+}
+
+void DC_Offset::calibrate_dc_offset(int *output, RecordGUIDCOffsetText **dc_offset_text, int input_channels)
+{
+ this->output = output;
+ this->dc_offset_text = dc_offset_text;
+ this->input_channels = input_channels;
+ start();
+}
+
+
+void DC_Offset::run()
+{
+// thread out progress box
+ progress = new BC_ProgressBox((int)BC_INFINITY,
+ (int)BC_INFINITY,
+ _("DC Offset"),
+ 256000);
+ progress->start();
+
+ dc_offset_lock->lock();
+ dc_offset_count = 0;
+ for(int i = 0; i < input_channels; i++)
+ {
+ dc_offset_total[i] = 0;
+ dc_offset[i] = 0;
+ }
+ getting_dc_offset = 1;
+
+ dc_offset_lock->lock(); // wait for result
+ dc_offset_lock->unlock();
+
+// thread in progress box
+ progress->stop_progress();
+ delete progress;
+
+ char string[256];
+ int i;
+
+// update interface
+ for(i = 0; i < input_channels; i++) output[i] = dc_offset[i];
+ for(i = 0; i < input_channels; i++)
+ {
+ sprintf(string, "%d", dc_offset[i]);
+ dc_offset_text[i]->update(string);
+ }
+}
+