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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>
+
+using Glib::ustring;
+using std::list;
+
+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 boost::shared_ptr<SampleFormatConverter<short> > ShortConverterPtr;
+ typedef boost::shared_ptr<SampleFormatConverter<int> > IntConverterPtr;
+ typedef boost::shared_ptr<SampleFormatConverter<float> > FloatConverterPtr;
+
+ typedef boost::shared_ptr<SndfileWriter<short> > ShortWriterPtr;
+ typedef boost::shared_ptr<SndfileWriter<int> > IntWriterPtr;
+ typedef boost::shared_ptr<SndfileWriter<float> > FloatWriterPtr;
+
+ 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 ();
+ FloatSinkPtr prepare_sndfile_writer (FormatPtr format, uint32_t channels, ustring const & filename);
+
+ Session & session;
+ 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__ */