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/*
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/utils/identity_vertex.h"
#include <boost/ptr_container/ptr_list.hpp>
#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 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 (framecnt_t frames, bool last_cycle);
bool process_normalize (); // returns true when finished
bool will_normalize() { return !normalizers.empty(); }
void reset ();
void set_current_timespan (boost::shared_ptr<ExportTimespan> span);
void add_config (FileSpec const & config);
private:
void add_split_config (FileSpec const & config);
class Encoder {
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<ExportFilenamePtr> filenames;
PBD::ScopedConnection copy_files_connection;
// 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 &, FileSpec const & new_config, framecnt_t max_frames);
FloatSinkPtr sink ();
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;
boost::ptr_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:
Normalizer (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
FloatSinkPtr sink ();
void add_child (FileSpec const & new_config);
bool operator== (FileSpec const & other_config) const;
/// Returns true when finished
bool process ();
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();
ExportGraphBuilder & parent;
FileSpec config;
framecnt_t max_frames_out;
BufferPtr buffer;
PeakReaderPtr peak_reader;
TmpFilePtr tmp_file;
NormalizerPtr normalizer;
ThreaderPtr threader;
boost::ptr_list<SFC> children;
PBD::ScopedConnection post_processing_connection;
};
// sample rate converter
class SRC {
public:
SRC (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
FloatSinkPtr sink ();
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, boost::ptr_list<T> & list);
ExportGraphBuilder & parent;
FileSpec config;
boost::ptr_list<SFC> children;
boost::ptr_list<Normalizer> normalized_children;
SRConverterPtr converter;
framecnt_t max_frames_out;
};
// Silence trimmer + adder
class SilenceHandler {
public:
SilenceHandler (ExportGraphBuilder & parent, FileSpec const & new_config, framecnt_t max_frames);
FloatSinkPtr sink ();
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;
boost::ptr_list<SRC> children;
SilenceTrimmerPtr silence_trimmer;
framecnt_t max_frames_in;
};
// channel configuration
class ChannelConfig {
public:
ChannelConfig (ExportGraphBuilder & parent, 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;
boost::ptr_list<SilenceHandler> children;
InterleaverPtr interleaver;
framecnt_t max_frames;
};
Session const & session;
boost::shared_ptr<ExportTimespan> timespan;
// Roots for export processor trees
typedef boost::ptr_list<ChannelConfig> ChannelConfigList;
ChannelConfigList channel_configs;
// The sources of all data, each channel is read only once
ChannelMap channels;
framecnt_t process_buffer_frames;
std::list<Normalizer *> normalizers;
Glib::ThreadPool thread_pool;
};
} // namespace ARDOUR
#endif /* __ardour_export_graph_builder_h__ */
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