/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 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 <boost/lexical_cast.hpp>
-#include <libxml++/libxml++.h>
-#include <libcxml/cxml.h>
+
#include "audio_mapping.h"
-#include "util.h"
+#include "audio_processor.h"
+#include "constants.h"
+#include "dcpomatic_assert.h"
+#include "digester.h"
+#include <dcp/raw_convert.h>
+#include <dcp/warnings.h>
+#include <libcxml/cxml.h>
+LIBDCP_DISABLE_WARNINGS
+#include <libxml++/libxml++.h>
+LIBDCP_ENABLE_WARNINGS
+#include <boost/regex.hpp>
+#include <iostream>
+
using std::list;
using std::cout;
using std::make_pair;
using std::pair;
using std::string;
-using boost::shared_ptr;
-using boost::lexical_cast;
-using boost::dynamic_pointer_cast;
+using std::min;
+using std::vector;
+using std::abs;
+using std::shared_ptr;
+using std::dynamic_pointer_cast;
+using boost::optional;
+using dcp::raw_convert;
-AudioMapping::AudioMapping ()
- : _content_channels (0)
-{
-
-}
-/** Create a default AudioMapping for a given channel count.
- * @param channels Number of channels.
+/** Create an empty AudioMapping.
+ * @param input_channels Number of input channels.
+ * @param output_channels Number of output channels.
*/
-AudioMapping::AudioMapping (int channels)
+AudioMapping::AudioMapping (int input_channels, int output_channels)
{
- setup (channels);
+ 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_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_AUDIO_CHANNELS; ++j) {
+ for (int i = 0; i < _input_channels; ++i) {
+ for (int j = 0; j < _output_channels; ++j) {
_gain[i][j] = 0;
}
}
+}
+
+
+struct ChannelRegex
+{
+ ChannelRegex (string regex_, int channel_)
+ : regex (regex_)
+ , channel (channel_)
+ {}
+
+ string regex;
+ int channel;
+};
- if (_content_channels == 1) {
- /* Mono -> Centre */
- set (0, dcp::CENTRE, 1);
+
+void
+AudioMapping::make_default (AudioProcessor const * processor, optional<boost::filesystem::path> filename)
+{
+ static ChannelRegex const regex[] = {
+ ChannelRegex(".*[\\._-]L[\\._-].*", 0),
+ ChannelRegex(".*[\\._-]R[\\._-].*", 1),
+ ChannelRegex(".*[\\._-]C[\\._-].*", 2),
+ ChannelRegex(".*[\\._-]Lfe[\\._-].*", 3),
+ ChannelRegex(".*[\\._-]LFE[\\._-].*", 3),
+ ChannelRegex(".*[\\._-]Lss[\\._-].*", 4),
+ ChannelRegex(".*[\\._-]Lsr[\\._-].*", 6),
+ ChannelRegex(".*[\\._-]Lrs[\\._-].*", 6),
+ ChannelRegex(".*[\\._-]Ls[\\._-].*", 4),
+ ChannelRegex(".*[\\._-]Rss[\\._-].*", 5),
+ ChannelRegex(".*[\\._-]Rsr[\\._-].*", 7),
+ ChannelRegex(".*[\\._-]Rrs[\\._-].*", 7),
+ ChannelRegex(".*[\\._-]Rs[\\._-].*", 5),
+ };
+
+ 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 < _content_channels; ++i) {
- set (i, static_cast<dcp::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].regex, boost::regex::icase);
+ if (boost::regex_match(filename->filename().string(), e) && regex[i].channel < output_channels()) {
+ set (0, regex[i].channel, 1);
+ guessed = true;
+ }
+ }
+ }
+
+ if (!guessed) {
+ /* If we have no idea, just put it on centre */
+ set (0, static_cast<int>(dcp::Channel::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<dcp::Channel> ((*i)->number_child<int> ("DCP")), 1);
+ for (auto i: node->node_children ("Map")) {
+ set (i->number_child<int>("ContentIndex"), 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<dcp::Channel> ((*i)->number_attribute<int> ("DCP")),
- lexical_cast<float> ((*i)->content ())
- );
+ for (auto i: node->node_children("Gain")) {
+ if (state_version < 32) {
+ set (
+ i->number_attribute<int>("Content"),
+ 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, dcp::Channel d, float g)
+AudioMapping::set (dcp::Channel input_channel, int output_channel, float g)
{
- _gain[c][d] = g;
+ set (static_cast<int>(input_channel), output_channel, g);
}
+
+void
+AudioMapping::set (int input_channel, dcp::Channel output_channel, float g)
+{
+ set (input_channel, static_cast<int>(output_channel), g);
+}
+
+
+void
+AudioMapping::set (int input_channel, int output_channel, float 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 input_channel, dcp::Channel output_channel) const
+{
+ return get (input_channel, static_cast<int>(output_channel));
+}
+
+
float
-AudioMapping::get (int c, dcp::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 (lexical_cast<string> (_content_channels));
-
- for (int c = 0; c < _content_channels; ++c) {
- for (int d = 0; d < MAX_AUDIO_CHANNELS; ++d) {
- xmlpp::Element* t = node->add_child ("Gain");
- t->set_attribute ("Content", lexical_cast<string> (c));
- t->set_attribute ("DCP", lexical_cast<string> (d));
- t->add_child_text (lexical_cast<string> (get (c, static_cast<dcp::Channel> (d))));
+ 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 < _input_channels; ++c) {
+ for (int d = 0; d < _output_channels; ++d) {
+ auto t = node->add_child ("Gain");
+ 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 (auto const& i: _gain) {
+ for (auto j: dcp::used_audio_channels()) {
+ if (abs(i[static_cast<int>(j)]) > minus_96_db) {
+ mapped.push_back (static_cast<int>(j));
+ }
+ }
+ }
+
+ mapped.sort ();
+ mapped.unique ();
+
+ return mapped;
+}
+
+
+void
+AudioMapping::unmap_all ()
+{
+ for (auto& i: _gain) {
+ for (auto& j: i) {
+ j = 0;
}
}
}
projects / dcpomatic.git / blobdiff