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Diffstat (limited to 'libs/ardour/ardour/export_graph_builder.h')
| -rw-r--r-- | libs/ardour/ardour/export_graph_builder.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/libs/ardour/ardour/export_graph_builder.h b/libs/ardour/ardour/export_graph_builder.h new file mode 100644 index 0000000000..1244afd647 --- /dev/null +++ b/libs/ardour/ardour/export_graph_builder.h @@ -0,0 +1,225 @@ +/* + Copyright (C) 2009 Paul Davis + Author: Sakari Bergen + + 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., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef __ardour_export_graph_builder_h__ +#define __ardour_export_graph_builder_h__ + +#include "ardour/ardour.h" +#include "ardour/export_handler.h" +#include "ardour/export_channel.h" +#include "ardour/export_format_base.h" + +#include "audiographer/identity_vertex.h" + +#include <glibmm/threadpool.h> + +namespace AudioGrapher { + class SampleRateConverter; + class PeakReader; + class Normalizer; + template <typename T> class SampleFormatConverter; + template <typename T> class Interleaver; + template <typename T> class SndfileWriter; + template <typename T> class SilenceTrimmer; + template <typename T> class TmpFile; + template <typename T> class Threader; + template <typename T> class AllocatingProcessContext; +} + +namespace ARDOUR +{ + +class ExportGraphBuilder +{ + private: + typedef ExportHandler::FileSpec FileSpec; + typedef ExportElementFactory::FilenamePtr FilenamePtr; + + typedef boost::shared_ptr<AudioGrapher::Sink<Sample> > FloatSinkPtr; + typedef boost::shared_ptr<AudioGrapher::IdentityVertex<Sample> > IdentityVertexPtr; + typedef std::map<ExportChannelPtr, IdentityVertexPtr> ChannelMap; + + public: + + ExportGraphBuilder (Session const & session); + ~ExportGraphBuilder (); + + int process (nframes_t frames, bool last_cycle); + + void reset (); + void add_config (FileSpec const & config); + + private: + + class Encoder : public sigc::trackable { + public: + template <typename T> boost::shared_ptr<AudioGrapher::Sink<T> > init (FileSpec const & new_config); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + static int get_real_format (FileSpec const & config); + + private: + typedef boost::shared_ptr<AudioGrapher::SndfileWriter<Sample> > FloatWriterPtr; + typedef boost::shared_ptr<AudioGrapher::SndfileWriter<int> > IntWriterPtr; + typedef boost::shared_ptr<AudioGrapher::SndfileWriter<short> > ShortWriterPtr; + + template<typename T> void init_writer (boost::shared_ptr<AudioGrapher::SndfileWriter<T> > & writer); + void copy_files (std::string orig_path); + + FileSpec config; + std::list<FilenamePtr> filenames; + + // Only one of these should be available at a time + FloatWriterPtr float_writer; + IntWriterPtr int_writer; + ShortWriterPtr short_writer; + }; + + // sample format converter + class SFC { + public: + // This constructor so that this can be constructed like a Normalizer + SFC (ExportGraphBuilder &) {} + FloatSinkPtr init (FileSpec const & new_config, nframes_t max_frames); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + private: + typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<Sample> > FloatConverterPtr; + typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<int> > IntConverterPtr; + typedef boost::shared_ptr<AudioGrapher::SampleFormatConverter<short> > ShortConverterPtr; + + FileSpec config; + std::list<Encoder> children; + int data_width; + + // Only one of these should be available at a time + FloatConverterPtr float_converter; + IntConverterPtr int_converter; + ShortConverterPtr short_converter; + }; + + class Normalizer : public sigc::trackable { + public: + Normalizer (ExportGraphBuilder & parent) : parent (parent) {} + FloatSinkPtr init (FileSpec const & new_config, nframes_t max_frames); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + private: + typedef boost::shared_ptr<AudioGrapher::PeakReader> PeakReaderPtr; + typedef boost::shared_ptr<AudioGrapher::Normalizer> NormalizerPtr; + typedef boost::shared_ptr<AudioGrapher::TmpFile<Sample> > TmpFilePtr; + typedef boost::shared_ptr<AudioGrapher::Threader<Sample> > ThreaderPtr; + typedef boost::shared_ptr<AudioGrapher::AllocatingProcessContext<Sample> > BufferPtr; + + void start_post_processing(); + void do_post_processing(); + + ExportGraphBuilder & parent; + + FileSpec config; + nframes_t max_frames_out; + + BufferPtr buffer; + PeakReaderPtr peak_reader; + TmpFilePtr tmp_file; + NormalizerPtr normalizer; + ThreaderPtr threader; + std::list<SFC> children; + }; + + // sample rate converter + class SRC { + public: + SRC (ExportGraphBuilder & parent) : parent (parent) {} + FloatSinkPtr init (FileSpec const & new_config, nframes_t max_frames); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + private: + typedef boost::shared_ptr<AudioGrapher::SampleRateConverter> SRConverterPtr; + + template<typename T> + void add_child_to_list (FileSpec const & new_config, std::list<T> & list); + + ExportGraphBuilder & parent; + FileSpec config; + std::list<SFC> children; + std::list<Normalizer> normalized_children; + SRConverterPtr converter; + nframes_t max_frames_out; + }; + + // Silence trimmer + adder + class SilenceHandler { + public: + SilenceHandler (ExportGraphBuilder & parent) : parent (parent) {} + FloatSinkPtr init (FileSpec const & new_config, nframes_t max_frames); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + private: + typedef boost::shared_ptr<AudioGrapher::SilenceTrimmer<Sample> > SilenceTrimmerPtr; + + ExportGraphBuilder & parent; + FileSpec config; + std::list<SRC> children; + SilenceTrimmerPtr silence_trimmer; + nframes_t max_frames_in; + }; + + // channel configuration + class ChannelConfig { + public: + ChannelConfig (ExportGraphBuilder & parent) : parent (parent) {} + void init (FileSpec const & new_config, ChannelMap & channel_map); + void add_child (FileSpec const & new_config); + bool operator== (FileSpec const & other_config) const; + + private: + typedef boost::shared_ptr<AudioGrapher::Interleaver<Sample> > InterleaverPtr; + + ExportGraphBuilder & parent; + FileSpec config; + std::list<SilenceHandler> children; + InterleaverPtr interleaver; + nframes_t max_frames; + }; + + Session const & session; + + // Roots for export processor trees + typedef std::list<ChannelConfig> ChannelConfigList; + ChannelConfigList channel_configs; + + // The sources of all data, each channel is read only once + ChannelMap channels; + + Sample * process_buffer; + nframes_t process_buffer_frames; + + Glib::ThreadPool thread_pool; +}; + +} // namespace ARDOUR + +#endif /* __ardour_export_graph_builder_h__ */ |