/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <libxml++/libxml++.h>
-#include <libcxml/cxml.h>
-#include <libdcp/raw_convert.h>
#include "audio_mapping.h"
#include "util.h"
+#include "digester.h"
+#include "audio_processor.h"
+#include <dcp/raw_convert.h>
+#include <libcxml/cxml.h>
+#include <libxml++/libxml++.h>
+#include <boost/regex.hpp>
+#include <iostream>
using std::list;
using std::cout;
using std::pair;
using std::string;
using std::min;
+using std::vector;
+using std::abs;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
-using libdcp::raw_convert;
+using boost::optional;
+using dcp::raw_convert;
AudioMapping::AudioMapping ()
- : _content_channels (0)
+ : _input_channels (0)
+ , _output_channels (0)
{
}
-/** Create a default AudioMapping for a given channel count.
- * @param c Number of channels.
+/** Create an empty AudioMapping.
+ * @param input_channels Number of input channels.
+ * @param output_channels Number of output channels.
*/
-AudioMapping::AudioMapping (int c)
+AudioMapping::AudioMapping (int input_channels, int output_channels)
{
- setup (c);
+ setup (input_channels, output_channels);
}
void
-AudioMapping::setup (int c)
+AudioMapping::setup (int input_channels, int output_channels)
{
- _content_channels = c;
-
- _gain.resize (_content_channels);
- for (int i = 0; i < _content_channels; ++i) {
- _gain[i].resize (MAX_DCP_AUDIO_CHANNELS);
+ _input_channels = input_channels;
+ _output_channels = output_channels;
+
+ _gain.resize (_input_channels);
+ for (int i = 0; i < _input_channels; ++i) {
+ _gain[i].resize (_output_channels);
}
+
+ make_zero ();
}
void
-AudioMapping::make_default ()
+AudioMapping::make_zero ()
{
- for (int i = 0; i < _content_channels; ++i) {
- for (int j = 0; j < MAX_DCP_AUDIO_CHANNELS; ++j) {
+ for (int i = 0; i < _input_channels; ++i) {
+ for (int j = 0; j < _output_channels; ++j) {
_gain[i][j] = 0;
}
}
+}
- if (_content_channels == 1) {
- /* Mono -> Centre */
- set (0, libdcp::CENTRE, 1);
+void
+AudioMapping::make_default (AudioProcessor const * processor, optional<boost::filesystem::path> filename)
+{
+ static string const regex[] = {
+ ".*[\\._-]L[\\._-].*",
+ ".*[\\._-]R[\\._-].*",
+ ".*[\\._-]C[\\._-].*",
+ ".*[\\._-]Lfe[\\._-].*",
+ ".*[\\._-]Ls[\\._-].*",
+ ".*[\\._-]Rs[\\._-].*"
+ };
+
+ static int const regexes = sizeof(regex) / sizeof(*regex);
+
+ if (processor) {
+ processor->make_audio_mapping_default (*this);
} else {
- /* 1:1 mapping */
- for (int i = 0; i < min (_content_channels, MAX_DCP_AUDIO_CHANNELS); ++i) {
- set (i, static_cast<libdcp::Channel> (i), 1);
+ make_zero ();
+ if (input_channels() == 1) {
+ bool guessed = false;
+
+ /* See if we can guess where this stream should go */
+ if (filename) {
+ for (int i = 0; i < regexes; ++i) {
+ boost::regex e (regex[i], boost::regex::icase);
+ if (boost::regex_match(filename->string(), e) && i < output_channels()) {
+ set (0, i, 1);
+ guessed = true;
+ }
+ }
+ }
+
+ if (!guessed) {
+ /* If we have no idea, just put it on centre */
+ set (0, static_cast<int>(dcp::CENTRE), 1);
+ }
+ } else {
+ /* 1:1 mapping */
+ for (int i = 0; i < min (input_channels(), output_channels()); ++i) {
+ set (i, i, 1);
+ }
}
}
}
-AudioMapping::AudioMapping (shared_ptr<const cxml::Node> node, int state_version)
+AudioMapping::AudioMapping (cxml::ConstNodePtr node, int state_version)
{
- setup (node->number_child<int> ("ContentChannels"));
+ if (state_version < 32) {
+ setup (node->number_child<int> ("ContentChannels"), MAX_DCP_AUDIO_CHANNELS);
+ } else {
+ setup (node->number_child<int> ("InputChannels"), node->number_child<int> ("OutputChannels"));
+ }
if (state_version <= 5) {
/* Old-style: on/off mapping */
list<cxml::NodePtr> const c = node->node_children ("Map");
for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
- set ((*i)->number_child<int> ("ContentIndex"), static_cast<libdcp::Channel> ((*i)->number_child<int> ("DCP")), 1);
+ set ((*i)->number_child<int> ("ContentIndex"), static_cast<dcp::Channel> ((*i)->number_child<int> ("DCP")), 1);
}
} else {
list<cxml::NodePtr> const c = node->node_children ("Gain");
for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
- set (
- (*i)->number_attribute<int> ("Content"),
- static_cast<libdcp::Channel> ((*i)->number_attribute<int> ("DCP")),
- raw_convert<float> ((*i)->content ())
- );
+ if (state_version < 32) {
+ set (
+ (*i)->number_attribute<int> ("Content"),
+ static_cast<dcp::Channel> ((*i)->number_attribute<int> ("DCP")),
+ raw_convert<float> ((*i)->content ())
+ );
+ } else {
+ set (
+ (*i)->number_attribute<int> ("Input"),
+ (*i)->number_attribute<int> ("Output"),
+ raw_convert<float> ((*i)->content ())
+ );
+ }
}
}
}
void
-AudioMapping::set (int c, libdcp::Channel d, float g)
+AudioMapping::set (int input_channel, int output_channel, float g)
{
- _gain[c][d] = g;
+ DCPOMATIC_ASSERT (input_channel < int(_gain.size()));
+ DCPOMATIC_ASSERT (output_channel < int(_gain[0].size()));
+ _gain[input_channel][output_channel] = g;
}
float
-AudioMapping::get (int c, libdcp::Channel d) const
+AudioMapping::get (int input_channel, int output_channel) const
{
- return _gain[c][d];
+ DCPOMATIC_ASSERT (input_channel < int (_gain.size()));
+ DCPOMATIC_ASSERT (output_channel < int (_gain[0].size()));
+ return _gain[input_channel][output_channel];
}
void
AudioMapping::as_xml (xmlpp::Node* node) const
{
- node->add_child ("ContentChannels")->add_child_text (raw_convert<string> (_content_channels));
+ node->add_child ("InputChannels")->add_child_text (raw_convert<string> (_input_channels));
+ node->add_child ("OutputChannels")->add_child_text (raw_convert<string> (_output_channels));
- for (int c = 0; c < _content_channels; ++c) {
- for (int d = 0; d < MAX_DCP_AUDIO_CHANNELS; ++d) {
+ for (int c = 0; c < _input_channels; ++c) {
+ for (int d = 0; d < _output_channels; ++d) {
xmlpp::Element* t = node->add_child ("Gain");
- t->set_attribute ("Content", raw_convert<string> (c));
- t->set_attribute ("DCP", raw_convert<string> (d));
- t->add_child_text (raw_convert<string> (get (c, static_cast<libdcp::Channel> (d))));
+ t->set_attribute ("Input", raw_convert<string> (c));
+ t->set_attribute ("Output", raw_convert<string> (d));
+ t->add_child_text (raw_convert<string> (get (c, d)));
+ }
+ }
+}
+
+/** @return a string which is unique for a given AudioMapping configuration, for
+ * differentiation between different AudioMappings.
+ */
+string
+AudioMapping::digest () const
+{
+ Digester digester;
+ digester.add (_input_channels);
+ digester.add (_output_channels);
+ for (int i = 0; i < _input_channels; ++i) {
+ for (int j = 0; j < _output_channels; ++j) {
+ digester.add (_gain[i][j]);
+ }
+ }
+
+ return digester.get ();
+}
+
+list<int>
+AudioMapping::mapped_output_channels () const
+{
+ static float const minus_96_db = 0.000015849;
+
+ list<int> mapped;
+
+ for (vector<vector<float> >::const_iterator i = _gain.begin(); i != _gain.end(); ++i) {
+ for (size_t j = 0; j < i->size(); ++j) {
+ if (abs ((*i)[j]) > minus_96_db) {
+ mapped.push_back (j);
+ }
+ }
+ }
+
+ mapped.sort ();
+ mapped.unique ();
+
+ return mapped;
+}
+
+void
+AudioMapping::unmap_all ()
+{
+ for (vector<vector<float> >::iterator i = _gain.begin(); i != _gain.end(); ++i) {
+ for (vector<float>::iterator j = i->begin(); j != i->end(); ++j) {
+ *j = 0;
}
}
}
projects / dcpomatic.git / blobdiff