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/*
Copyright (C) 2008 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_processor_h__
#define __ardour_export_processor_h__
#include <vector>
#include <boost/smart_ptr.hpp>
#include <glibmm/ustring.h>
#include "ardour/graph.h"
#include "ardour/export_file_io.h"
#include "ardour/export_utilities.h"
namespace ARDOUR
{
class Session;
class ExportStatus;
class ExportFilename;
class ExportFormatSpecification;
/// Sets up components for export post processing
class ExportProcessor
{
private:
/* Typedefs for utility processors */
typedef boost::shared_ptr<SampleRateConverter> SRConverterPtr;
typedef boost::shared_ptr<PeakReader> PReaderPtr;
typedef boost::shared_ptr<Normalizer> NormalizerPtr;
typedef boost::shared_ptr<ExportTempFile> TempFilePtr;
typedef GraphSink<float> FloatSink;
typedef boost::shared_ptr<FloatSink> FloatSinkPtr;
typedef std::vector<FloatSinkPtr> FloatSinkVect;
typedef boost::shared_ptr<ExportFilename> FilenamePtr;
typedef boost::shared_ptr<ExportFormatSpecification const> FormatPtr;
typedef boost::shared_ptr<ExportFileWriter> FileWriterPtr;
typedef std::list<FileWriterPtr> FileWriterList;
public:
ExportProcessor (Session & session);
~ExportProcessor ();
ExportProcessor * copy() { return new ExportProcessor (session); }
/// Do preparations for exporting
/** Should be called before process
* @return 0 on success
*/
int prepare (FormatPtr format, FilenamePtr fname, uint32_t chans, bool split = false, nframes_t start = 0);
/// Process data
/** @param frames frames to process @return frames written **/
nframes_t process (float * data, nframes_t frames);
/** should be called after all data is given to process **/
void prepare_post_processors ();
void write_files ();
static sigc::signal<void, Glib::ustring> WritingFile;
private:
void reset ();
Session & session;
boost::shared_ptr<ExportStatus> status;
/* these are initalized in prepare() */
FilenamePtr filename;
NormalizerPtr normalizer;
SRConverterPtr src;
PReaderPtr peak_reader;
TempFilePtr temp_file;
FloatSinkVect file_sinks;
FileWriterList writer_list;
/* general info */
uint32_t channels;
nframes_t blocksize;
nframes_t frame_rate;
/* Processing */
bool tag;
bool broadcast_info;
bool split_files;
bool normalize;
bool trim_beginning;
bool trim_end;
nframes_t silence_beginning;
nframes_t silence_end;
/* Progress info */
nframes_t temp_file_position;
nframes_t temp_file_length;
};
} // namespace ARDOUR
#endif /* __ardour_export_processor_h__ */
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