hvirtual/cinelerra/dcoffset.C

Go to the documentation of this file.

#include "bcprogressbox.h"
#include "dcoffset.h"
#include "mutex.h"
#include "recordgui.h"

#include <libintl.h>
#define _(String) gettext(String)
#define gettext_noop(String) String
#define N_(String) gettext_noop (String)



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;
}

int 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, "%ld", dc_offset[i]);
                dc_offset_text[i]->update(string);
        }
}

---