element_importer.cc

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/*
    Copyright (C) 2008 Paul Davis
    Author: Sakari Bergen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include "ardour/element_importer.h"

#include <sstream>
#include <iomanip>

#include "pbd/convert.h"
#include "ardour/session.h"

#include "i18n.h"

using namespace std;
using namespace PBD;
using namespace ARDOUR;

Signal2<std::pair<bool, string>,string, string> ElementImporter::Rename;
Signal1 <bool,string> ElementImporter::Prompt;

ElementImporter::ElementImporter (XMLTree const & source, ARDOUR::Session & session) :
  source (source),
  session(session),
  _queued (false),
  _broken (false)
{
        // Get samplerate
        XMLProperty *prop;
        prop = source.root()->property ("sample-rate");
        if (prop) {
                std::istringstream iss (prop->value());
                iss >> sample_rate;
        }
}

ElementImporter::~ElementImporter ()
{
}

void
ElementImporter::move ()
{
        if (!_queued) { return; }
        _move ();
}

bool
ElementImporter::prepare_move ()
{
        if (_queued) {
                return true;
        }
        _queued = _prepare_move ();
        return _queued;
}

void
ElementImporter::cancel_move ()
{
        if (!_queued) { return; }
        _cancel_move ();
}

string
ElementImporter::timecode_to_string(Timecode::Time & time) const
{
        std::ostringstream oss;
        oss << std::setfill('0') << std::right <<
          std::setw(2) <<
          time.hours << ":" <<
          std::setw(2) <<
          time.minutes << ":" <<
          std::setw(2) <<
          time.seconds << ":" <<
          std::setw(2) <<
          time.frames;

        return oss.str();
}

framecnt_t
ElementImporter::rate_convert_samples (framecnt_t samples) const
{
        if (sample_rate == session.frame_rate()) {
                return samples;
        }

        // +0.5 for proper rounding
        return static_cast<framecnt_t> (samples * (static_cast<double> (session.nominal_frame_rate()) / sample_rate) + 0.5);
}

string
ElementImporter::rate_convert_samples (string const & samples) const
{
        return to_string (rate_convert_samples (atoi (samples)), std::dec);
}