libs/ardour/ardour/export_graph_builder.h

   1 /*
   2     Copyright (C) 2009 Paul Davis
   3     Author: Sakari Bergen
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #ifndef __ardour_export_graph_builder_h__
  22 #define __ardour_export_graph_builder_h__
  23
  24 #include "ardour/export_handler.h"
  25 #include "ardour/export_analysis.h"
  26
  27 #include "audiographer/utils/identity_vertex.h"
  28
  29 #include <boost/ptr_container/ptr_list.hpp>
  30 #include <glibmm/threadpool.h>
  31
  32 namespace AudioGrapher {
  33         class SampleRateConverter;
  34         class PeakReader;
  35         class Normalizer;
  36         class Analyser;
  37         template <typename T> class Chunker;
  38         template <typename T> class SampleFormatConverter;
  39         template <typename T> class Interleaver;
  40         template <typename T> class SndfileWriter;
  41         template <typename T> class SilenceTrimmer;
  42         template <typename T> class TmpFile;
  43         template <typename T> class Threader;
  44         template <typename T> class AllocatingProcessContext;
  45 }
  46
  47 namespace ARDOUR
  48 {
  49
  50 class ExportTimespan;
  51 class Session;
  52
  53 class LIBARDOUR_API ExportGraphBuilder
  54 {
  55   private:
  56         typedef ExportHandler::FileSpec FileSpec;
  57
  58         typedef boost::shared_ptr<AudioGrapher::Sink<Sample> > FloatSinkPtr;
  59         typedef boost::shared_ptr<AudioGrapher::IdentityVertex<Sample> > IdentityVertexPtr;
  60         typedef boost::shared_ptr<AudioGrapher::Analyser> AnalysisPtr;
  61         typedef std::map<ExportChannelPtr,  IdentityVertexPtr> ChannelMap;
  62         typedef std::map<std::string, AnalysisPtr> AnalysisMap;
  63
  64   public:
  65
  66         ExportGraphBuilder (Session const & session);
  67         ~ExportGraphBuilder ();
  68
  69         int process (framecnt_t frames, bool last_cycle);
  70         bool process_normalize (); // returns true when finished
  71         bool will_normalize() { return !normalizers.empty(); }
  72         unsigned get_normalize_cycle_count() const;
  73
  74         void reset ();
  75         void cleanup (bool remove_out_files = false);
  76         void set_current_timespan (boost::shared_ptr<ExportTimespan> span);
  77         void add_config (FileSpec const & config);
  78         void get_analysis_results (AnalysisResults& results);
  79
  80   private:
  81
  82         void add_analyser (const std::string& fn, AnalysisPtr ap) {
  83                 analysis_map.insert (std::make_pair (fn, ap));
  84         }
  85
  86         void add_split_config (FileSpec const & config);
  87
  88         class Encoder {
  89             public:
  90                 template <typename T> boost::shared_ptr<AudioGrapher::Sink<T> > init (FileSpec const & new_config);
  91                 void add_child (FileSpec const & new_config);
  92                 void remove_children ();
  93                 void destroy_writer (bool delete_out_file);
  94                 bool operator== (FileSpec const & other_config) const;
  95
  96                 static int get_real_format (FileSpec const & config);
  97
  98                                                 private:
  99                 typedef boost::shared_ptr<AudioGrapher::SndfileWriter<Sample> > FloatWriterPtr;
 100                 typedef boost::shared_ptr<AudioGrapher::SndfileWriter<int> >    IntWriterPtr;
 101                 typedef boost::shared_ptr<AudioGrapher::SndfileWriter<short> >  ShortWriterPtr;
 102
 103                 template<typename T> void init_writer (boost::shared_ptr<AudioGrapher::SndfileWriter<T> > & writer);
 104                 void copy_files (std::string orig_path);
 105
 106                 FileSpec               config;
 107                 std::list<ExportFilenamePtr> filenames;
 108                 PBD::ScopedConnection  copy_files_connection;
 109
 110                 std::string writer_filename;
 111
 112                 // Only one of these should be available at a time
 113                 FloatWriterPtr float_writer;
 114                 IntWriterPtr   int_writer;
 115                 ShortWriterPtr short_writer;
 116         };
 117
 118         // sample format converter
 119         class SFC {
 120             public:
 121                 // This constructor so that this can be constructed like a Normalizer
 122                 SFC (ExportGraphBuilder &, FileSpec const & new_config, framecnt_t max_frames);
 123                 FloatSinkPtr sink ();
 124                 void add_child (FileSpec const & new_config);
 125                 void remove_children (bool remove_out_files);
 126                 bool operator== (FileSpec const & other_config) const;
 127
 128                                                 private:
 129                 typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<Sample> > FloatConverterPtr;
 130                 typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<int> >   IntConverterPtr;
 131                 typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<short> > ShortConverterPtr;
 132
 133                 FileSpec           config;
 134                 boost::ptr_list<Encoder> children;
 135                 int                data_width;
 136
 137                 AnalysisPtr     analyser;
 138                 // Only one of these should be available at a time
 139                 FloatConverterPtr float_converter;
 140                 IntConverterPtr int_converter;
 141                 ShortConverterPtr short_converter;
 142         };
 143
 144         class Normalizer {
 145                                                 public:
 146                 Normalizer (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
 147                 FloatSinkPtr sink ();
 148                 void add_child (FileSpec const & new_config);
 149                 void remove_children (bool remove_out_files);
 150                 bool operator== (FileSpec const & other_config) const;
 151
 152                 unsigned get_normalize_cycle_count() const;
 153
 154                 /// Returns true when finished
 155                 bool process ();
 156
 157                                                 private:
 158                 typedef boost::shared_ptr<AudioGrapher::PeakReader> PeakReaderPtr;
 159                 typedef boost::shared_ptr<AudioGrapher::Normalizer> NormalizerPtr;
 160                 typedef boost::shared_ptr<AudioGrapher::TmpFile<Sample> > TmpFilePtr;
 161                 typedef boost::shared_ptr<AudioGrapher::Threader<Sample> > ThreaderPtr;
 162                 typedef boost::shared_ptr<AudioGrapher::AllocatingProcessContext<Sample> > BufferPtr;
 163
 164                 void start_post_processing();
 165
 166                 ExportGraphBuilder & parent;
 167
 168                 FileSpec        config;
 169                 framecnt_t      max_frames_out;
 170
 171                 BufferPtr       buffer;
 172                 PeakReaderPtr   peak_reader;
 173                 TmpFilePtr      tmp_file;
 174                 NormalizerPtr   normalizer;
 175                 ThreaderPtr     threader;
 176                 boost::ptr_list<SFC> children;
 177
 178                 PBD::ScopedConnection post_processing_connection;
 179         };
 180
 181         // sample rate converter
 182         class SRC {
 183             public:
 184                 SRC (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
 185                 FloatSinkPtr sink ();
 186                 void add_child (FileSpec const & new_config);
 187                 void remove_children (bool remove_out_files);
 188
 189                 bool operator== (FileSpec const & other_config) const;
 190
 191                                                 private:
 192                 typedef boost::shared_ptr<AudioGrapher::SampleRateConverter> SRConverterPtr;
 193
 194                 template<typename T>
 195                 void add_child_to_list (FileSpec const & new_config, boost::ptr_list<T> & list);
 196
 197                 ExportGraphBuilder &  parent;
 198                 FileSpec              config;
 199                 boost::ptr_list<SFC>  children;
 200                 boost::ptr_list<Normalizer> normalized_children;
 201                 SRConverterPtr        converter;
 202                 framecnt_t            max_frames_out;
 203         };
 204
 205         // Silence trimmer + adder
 206         class SilenceHandler {
 207             public:
 208                 SilenceHandler (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
 209                 FloatSinkPtr sink ();
 210                 void add_child (FileSpec const & new_config);
 211                 void remove_children (bool remove_out_files);
 212                 bool operator== (FileSpec const & other_config) const;
 213
 214                                                 private:
 215                 typedef boost::shared_ptr<AudioGrapher::SilenceTrimmer<Sample> > SilenceTrimmerPtr;
 216
 217                 ExportGraphBuilder & parent;
 218                 FileSpec             config;
 219                 boost::ptr_list<SRC> children;
 220                 SilenceTrimmerPtr    silence_trimmer;
 221                 framecnt_t           max_frames_in;
 222         };
 223
 224         // channel configuration
 225         class ChannelConfig {
 226             public:
 227                 ChannelConfig (ExportGraphBuilder & parent, FileSpec const & new_config, ChannelMap & channel_map);
 228                 void add_child (FileSpec const & new_config);
 229                 void remove_children (bool remove_out_files);
 230                 bool operator== (FileSpec const & other_config) const;
 231
 232                                                 private:
 233                 typedef boost::shared_ptr<AudioGrapher::Interleaver<Sample> > InterleaverPtr;
 234                 typedef boost::shared_ptr<AudioGrapher::Chunker<Sample> > ChunkerPtr;
 235
 236                 ExportGraphBuilder &      parent;
 237                 FileSpec                  config;
 238                 boost::ptr_list<SilenceHandler> children;
 239                 InterleaverPtr            interleaver;
 240                 ChunkerPtr                chunker;
 241                 framecnt_t                max_frames_out;
 242         };
 243
 244         Session const & session;
 245         boost::shared_ptr<ExportTimespan> timespan;
 246
 247         // Roots for export processor trees
 248         typedef boost::ptr_list<ChannelConfig> ChannelConfigList;
 249         ChannelConfigList channel_configs;
 250
 251         // The sources of all data, each channel is read only once
 252         ChannelMap channels;
 253
 254         framecnt_t process_buffer_frames;
 255
 256         std::list<Normalizer *> normalizers;
 257
 258         AnalysisMap analysis_map;
 259
 260         Glib::ThreadPool thread_pool;
 261 };
 262
 263 } // namespace ARDOUR
 264
 265 #endif /* __ardour_export_graph_builder_h__ */