13
0
livetrax/libs/ardour/broadcast_info.cc

133 lines
3.9 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* Copyright (C) 2008-2015 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2012 David Robillard <d@drobilla.net>
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ardour/broadcast_info.h"
#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <glibmm.h>
#include "ardour/revision.h"
#include "ardour/session.h"
#include "ardour/session_metadata.h"
using namespace PBD;
namespace ARDOUR
{
static void
snprintf_bounded_null_filled (char* target, size_t target_size, char const * fmt, ...)
{
std::vector<char> buf(target_size+1);
va_list ap;
va_start (ap, fmt);
vsnprintf (&buf[0], target_size+1, fmt, ap);
va_end (ap);
memset (target, 0, target_size);
memcpy (target, &buf[0], target_size);
}
BroadcastInfo::BroadcastInfo ()
{
}
void
BroadcastInfo::set_from_session (Session const & session, int64_t time_ref)
{
set_description (session.name());
set_time_reference (time_ref);
set_origination_time ();
set_originator ();
set_originator_ref_from_session (session);
}
void
BroadcastInfo::set_originator (std::string const & str)
{
_has_info = true;
if (!str.empty()) {
AudioGrapher::BroadcastInfo::set_originator (str);
return;
}
snprintf_bounded_null_filled (info->originator, sizeof (info->originator), Glib::get_real_name().c_str());
}
void
BroadcastInfo::set_originator_ref_from_session (Session const & /*session*/)
{
_has_info = true;
/* random code is 9 digits */
int random_code = g_random_int() % 999999999;
/* Serial number is 12 chars */
std::ostringstream serial_number;
serial_number << PROGRAM_NAME << revision;
std::string country = SessionMetadata::Metadata()->country().substr (0, 2).c_str(); // ISO 3166-1 2 digits
if (country.empty ()) {
/* "ZZ" is reserved and may be user-assigned.
* EBU Tech 3279 chapter 4.2.4 recommends "ZZ" for unregistered organizations
*/
country = "ZZ";
}
/* https://tech.ebu.ch/docs/tech/tech3279.pdf */
std::string organization = SessionMetadata::Metadata()->organization().substr (0, 3).c_str(); // EBU assigned Organisation code
if (organization.empty ()) {
organization = "---";
}
// TODO sanitize to allowed char set: tech3279.pdf chapter 1.6
// allowed: A-Z 0-9 <space> .,-()/=
// possible, but not recommended: !"%&*;<>
/* https://tech.ebu.ch/docs/r/r099.pdf
* CC Country code: (2 characters) based on the ISO 3166-1 standard
* OOO Organisation code: (3 characters) based on the EBU facility codes, Tech 3279
* NNNNNNNNNNNN Serial number: (12 characters extracted from the recorder model and serial number) This should identify the machines type and serial number.
* HHMMSS OriginationTime (6 characters,) from the <OriginationTime> field of the BWF.
* RRRRRRRRR Random Number (9 characters 0-9) Generated locally by the recorder using some reasonably random algorithm.
*/
snprintf_bounded_null_filled (info->originator_reference, sizeof (info->originator_reference), "%2s%3s%12s%02d%02d%02d%09d",
country.c_str (), organization.c_str(),
serial_number.str().substr (0, 12).c_str(),
_time.tm_hour,
_time.tm_min,
_time.tm_sec,
random_code);
}
} // namespace ARDOUR