106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
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* Copyright (C) 2005-2006 Taybin Rutkin <taybin@taybin.com>
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* Copyright (C) 2006-2008 Doug McLain <doug@nostar.net>
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* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
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* Copyright (C) 2006-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2013 John Emmas <john@creativepost.co.uk>
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* Copyright (C) 2016-2019 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __sndfile_source_h__
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#define __sndfile_source_h__
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#include <sndfile.h>
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#include "ardour/audiofilesource.h"
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#include "ardour/broadcast_info.h"
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#include "ardour/progress.h"
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namespace ARDOUR {
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class LIBARDOUR_API SndFileSource : public AudioFileSource {
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public:
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/** Constructor to be called for existing external-to-session files */
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SndFileSource (Session&, const std::string& path, int chn, Flag flags);
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/* Constructor to be called for new in-session files */
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SndFileSource (Session&, const std::string& path, const std::string& origin,
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SampleFormat samp_format, HeaderFormat hdr_format, samplecnt_t rate,
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Flag flags = SndFileSource::default_writable_flags);
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/* Constructor to be called for recovering files being used for
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* capture. They are in-session, they already exist, they should not
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* be writable. They are an odd hybrid (from a constructor point of
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* view) of the previous two constructors.
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*/
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SndFileSource (Session&, const std::string& path, int chn);
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/** Constructor to be called for existing in-session files during
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* session loading
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*/
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SndFileSource (Session&, const XMLNode&);
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/** Constructor to losslessly compress existing source */
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SndFileSource (Session& s, const AudioFileSource& other, const std::string& path, bool use16bits = false, Progress* p = NULL);
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~SndFileSource ();
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float sample_rate () const;
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int update_header (samplepos_t when, struct tm&, time_t);
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int flush_header ();
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void flush ();
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bool one_of_several_channels () const;
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uint32_t channel_count () const { return _info.channels; }
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bool clamped_at_unity () const;
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static const Source::Flag default_writable_flags;
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static int get_soundfile_info (const std::string& path, SoundFileInfo& _info, std::string& error_msg);
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protected:
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void close ();
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void set_path (const std::string& p);
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void set_header_natural_position ();
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samplecnt_t read_unlocked (Sample *dst, samplepos_t start, samplecnt_t cnt) const;
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samplecnt_t write_unlocked (Sample *dst, samplecnt_t cnt);
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samplecnt_t write_float (Sample* data, samplepos_t pos, samplecnt_t cnt);
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private:
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SNDFILE* _sndfile;
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SF_INFO _info;
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BroadcastInfo *_broadcast_info;
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void init_sndfile ();
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int open();
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int setup_broadcast_info (samplepos_t when, struct tm&, time_t);
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void file_closed ();
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void set_natural_position (timepos_t const &);
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samplecnt_t nondestructive_write_unlocked (Sample *dst, samplecnt_t cnt);
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PBD::ScopedConnection header_position_connection;
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};
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} // namespace ARDOUR
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#endif /* __sndfile_source_h__ */
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