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/*
Copyright (C) 2000-2007 Paul Davis
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_h__
#define __ardour_export_h__
#include <map>
#include <vector>
#include <string>
#include <sigc++/signal.h>
#include <sndfile.h>
#include <samplerate.h>
#include "ardour/ardour.h"
#include "ardour/gdither.h"
namespace ARDOUR
{
class Port;
typedef std::pair<Port *, uint32_t> PortChannelPair;
typedef std::map<uint32_t, std::vector<PortChannelPair> > ExportPortMap;
struct ExportSpecification : public SF_INFO, public sigc::trackable {
ExportSpecification();
~ExportSpecification ();
void init ();
void clear ();
int prepare (nframes_t blocksize, nframes_t frame_rate);
int process (nframes_t nframes);
/* set by the user */
std::string path;
nframes_t sample_rate;
int src_quality;
SNDFILE* out;
uint32_t channels;
ExportPortMap port_map;
nframes_t start_frame;
nframes_t end_frame;
GDitherType dither_type;
bool do_freewheel;
/* used exclusively during export */
nframes_t frame_rate;
GDither dither;
float* dataF;
float* dataF2;
float* leftoverF;
nframes_t leftover_frames;
nframes_t max_leftover_frames;
void* output_data;
nframes_t out_samples_max;
uint32_t sample_bytes;
uint32_t data_width;
nframes_t total_frames;
SF_INFO sfinfo;
SRC_DATA src_data;
SRC_STATE* src_state;
nframes_t pos;
sigc::connection freewheel_connection;
/* shared between UI thread and audio thread */
volatile float progress; /* audio thread sets this */
volatile bool stop; /* UI sets this */
volatile bool running; /* audio thread sets to false when export is done */
int status;
};
} // namespace ARDOUR
#endif /* __ardour_export_h__ */
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