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livetrax/libs/ardour/export_channel_configuration.cc
Robin Gareus ddb9484994
Safeguard against using RegionExport for default export
It is unclear how an existing ExportChannelConfiguration copy
can be reused in a different context, but apparently it can happen:
https://discourse.ardour.org/t/ardour-exports-flatline-wav-file-no-playhead-movement-through-file/108803/25
2023-06-22 23:34:15 +02:00

159 lines
4.1 KiB
C++

/*
* Copyright (C) 2008-2009 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2008-2012 Sakari Bergen <sakari.bergen@beatwaves.net>
* Copyright (C) 2009-2012 David Robillard <d@drobilla.net>
* Copyright (C) 2022 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/export_channel_configuration.h"
#include "pbd/convert.h"
#include "pbd/enumwriter.h"
#include "pbd/pthread_utils.h"
using namespace PBD;
namespace ARDOUR
{
/* ExportChannelConfiguration */
ExportChannelConfiguration::ExportChannelConfiguration (Session& session)
: session (session)
, split (false)
, region_type (RegionExportChannelFactory::None)
{
}
XMLNode&
ExportChannelConfiguration::get_state () const
{
XMLNode* root = new XMLNode ("ExportChannelConfiguration");
XMLNode* channel;
root->set_property ("split", get_split ());
root->set_property ("channels", get_n_chans ());
switch (region_type) {
case RegionExportChannelFactory::None:
// Do nothing
break;
default:
root->set_property ("region-processing", enum_2_string (region_type));
break;
}
uint32_t i = 1;
for (auto const& c : channels) {
channel = root->add_child ("ExportChannel");
channel->set_property ("type", c->state_node_name ());
channel->set_property ("number", i);
c->get_state (channel);
++i;
}
return *root;
}
int
ExportChannelConfiguration::set_state (const XMLNode& root)
{
bool yn;
if (root.get_property ("split", yn)) {
set_split (yn);
}
std::string str;
if (root.get_property ("region-processing", str)) {
set_region_processing_type ((RegionExportChannelFactory::Type) string_2_enum (str, RegionExportChannelFactory::Type));
} else {
set_region_processing_type (RegionExportChannelFactory::None);
}
/* load old state, if any */
XMLNodeList channels = root.children ("Channel");
for (auto const& n : channels) {
ExportChannelPtr channel (new PortExportChannel ());
channel->set_state (n, session);
register_channel (channel);
}
XMLNodeList export_channels = root.children ("ExportChannel");
for (auto const& n : export_channels) {
std::string type;
if (!n->get_property ("type", type)) {
assert (0);
continue;
}
ExportChannelPtr channel;
if (type == "PortExportChannel") {
channel = ExportChannelPtr (new PortExportChannel ());
} else if (type == "PortExportMIDI") {
channel = ExportChannelPtr (new PortExportMIDI ());
} else if (type == "RouteExportChannel") {
std::list<ExportChannelPtr> list;
RouteExportChannel::create_from_state (list, session, n);
if (list.size () > 0) {
register_channels (list);
}
continue;
} else if (type == "RegionExportChannel") {
/* no state */
continue;
} else {
assert (0);
continue;
}
channel->set_state (n, session);
register_channel (channel);
}
return 0;
}
bool
ExportChannelConfiguration::all_channels_have_ports () const
{
for (auto const& c : channels) {
if (c->empty ()) {
return false;
}
}
return true;
}
void
ExportChannelConfiguration::configurations_for_files (std::list<std::shared_ptr<ExportChannelConfiguration>>& configs)
{
configs.clear ();
if (!split) {
configs.push_back (shared_from_this ());
return;
}
for (auto const& c : channels) {
std::shared_ptr<ExportChannelConfiguration> config (new ExportChannelConfiguration (session));
config->set_name (_name);
config->register_channel (c);
configs.push_back (config);
}
}
} // namespace ARDOUR