X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Faudio_mapping.cc;h=5e8bf4d04713de054caddefd383eb18167b71395;hb=afa092638250c72a92136b0b440bb6bb7c070702;hp=fc3909a8aa0ab5240dd7d17b968bf102e2783d70;hpb=fa61fc99549264810e17fcd35abffe9e8ddab5b2;p=dcpomatic.git diff --git a/src/lib/audio_mapping.cc b/src/lib/audio_mapping.cc index fc3909a8a..5e8bf4d04 100644 --- a/src/lib/audio_mapping.cc +++ b/src/lib/audio_mapping.cc @@ -1,28 +1,37 @@ /* - Copyright (C) 2013-2015 Carl Hetherington + Copyright (C) 2013-2021 Carl Hetherington - 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 . */ + #include "audio_mapping.h" +#include "audio_processor.h" +#include "digester.h" #include "util.h" -#include "md5_digester.h" -#include "raw_convert.h" +#include +#include #include +LIBDCP_DISABLE_WARNINGS #include +LIBDCP_ENABLE_WARNINGS +#include +#include + using std::list; using std::cout; @@ -31,15 +40,12 @@ using std::pair; using std::string; using std::min; using std::vector; -using boost::shared_ptr; -using boost::dynamic_pointer_cast; +using std::abs; +using std::shared_ptr; +using std::dynamic_pointer_cast; +using boost::optional; +using dcp::raw_convert; -AudioMapping::AudioMapping () - : _input_channels (0) - , _output_channels (0) -{ - -} /** Create an empty AudioMapping. * @param input_channels Number of input channels. @@ -50,12 +56,13 @@ AudioMapping::AudioMapping (int input_channels, int output_channels) setup (input_channels, output_channels); } + void AudioMapping::setup (int input_channels, int output_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); @@ -64,6 +71,7 @@ AudioMapping::setup (int input_channels, int output_channels) make_zero (); } + void AudioMapping::make_zero () { @@ -74,52 +82,142 @@ AudioMapping::make_zero () } } + +struct ChannelRegex +{ + ChannelRegex (string regex_, int channel_) + : regex (regex_) + , channel (channel_) + {} + + string regex; + int channel; +}; + + +void +AudioMapping::make_default (AudioProcessor const * processor, optional 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(".*[\\._-]Ls[\\._-].*", 4), + ChannelRegex(".*[\\._-]Rss[\\._-].*", 5), + ChannelRegex(".*[\\._-]Rsr[\\._-].*", 7), + ChannelRegex(".*[\\._-]Rs[\\._-].*", 5), + }; + + static int const regexes = sizeof(regex) / sizeof(*regex); + + if (processor) { + processor->make_audio_mapping_default (*this); + } else { + 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(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 (cxml::ConstNodePtr node, int state_version) { if (state_version < 32) { - setup (node->number_child ("ContentChannels"), MAX_DCP_AUDIO_CHANNELS); + setup (node->number_child("ContentChannels"), MAX_DCP_AUDIO_CHANNELS); } else { - setup (node->number_child ("InputChannels"), node->number_child ("OutputChannels")); + setup (node->number_child("InputChannels"), node->number_child("OutputChannels")); } if (state_version <= 5) { /* Old-style: on/off mapping */ - list const c = node->node_children ("Map"); - for (list::const_iterator i = c.begin(); i != c.end(); ++i) { - set ((*i)->number_child ("ContentIndex"), static_cast ((*i)->number_child ("DCP")), 1); + for (auto i: node->node_children ("Map")) { + set (i->number_child("ContentIndex"), i->number_child("DCP"), 1); } } else { - list const c = node->node_children ("Gain"); - for (list::const_iterator i = c.begin(); i != c.end(); ++i) { + for (auto i: node->node_children("Gain")) { if (state_version < 32) { set ( - (*i)->number_attribute ("Content"), - static_cast ((*i)->number_attribute ("DCP")), - raw_convert ((*i)->content ()) + i->number_attribute("Content"), + i->number_attribute("DCP"), + raw_convert(i->content()) ); } else { set ( - (*i)->number_attribute ("Input"), - (*i)->number_attribute ("Output"), - raw_convert ((*i)->content ()) + i->number_attribute("Input"), + i->number_attribute("Output"), + raw_convert(i->content()) ); } } } } + +void +AudioMapping::set (dcp::Channel input_channel, int output_channel, float g) +{ + set (static_cast(input_channel), output_channel, g); +} + + +void +AudioMapping::set (int input_channel, dcp::Channel output_channel, float g) +{ + set (input_channel, static_cast(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(output_channel)); +} + + float AudioMapping::get (int input_channel, int output_channel) const { + 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 { @@ -128,7 +226,7 @@ AudioMapping::as_xml (xmlpp::Node* node) const for (int c = 0; c < _input_channels; ++c) { for (int d = 0; d < _output_channels; ++d) { - xmlpp::Element* t = node->add_child ("Gain"); + auto t = node->add_child ("Gain"); t->set_attribute ("Input", raw_convert (c)); t->set_attribute ("Output", raw_convert (d)); t->add_child_text (raw_convert (get (c, d))); @@ -136,13 +234,14 @@ AudioMapping::as_xml (xmlpp::Node* node) const } } + /** @return a string which is unique for a given AudioMapping configuration, for * differentiation between different AudioMappings. */ string AudioMapping::digest () const { - MD5Digester digester; + Digester digester; digester.add (_input_channels); digester.add (_output_channels); for (int i = 0; i < _input_channels; ++i) { @@ -154,33 +253,35 @@ AudioMapping::digest () const return digester.get (); } + list AudioMapping::mapped_output_channels () const { static float const minus_96_db = 0.000015849; list mapped; - - for (vector >::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); + + for (auto const& i: _gain) { + for (auto j: dcp::used_audio_channels()) { + if (abs(i[static_cast(j)]) > minus_96_db) { + mapped.push_back (static_cast(j)); } } } mapped.sort (); mapped.unique (); - + return mapped; } + void AudioMapping::unmap_all () { - for (vector >::iterator i = _gain.begin(); i != _gain.end(); ++i) { - for (vector::iterator j = i->begin(); j != i->end(); ++j) { - *j = 0; + for (auto& i: _gain) { + for (auto& j: i) { + j = 0; } } }