ardour/libs/ardour/ardour/audiofilesource.h

122 lines
4.2 KiB
C++

/*
* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2007-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2013 John Emmas <john@creativepost.co.uk>
* Copyright (C) 2015-2016 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __ardour_audiofilesource_h__
#define __ardour_audiofilesource_h__
#include <exception>
#include <time.h>
#include "ardour/audiosource.h"
#include "ardour/file_source.h"
namespace ARDOUR {
struct LIBARDOUR_API SoundFileInfo {
float samplerate;
uint16_t channels;
int64_t length;
std::string format_name;
int64_t timecode;
bool seekable; // non-seekable files must be converted/imported
};
class LIBARDOUR_API AudioFileSource : public AudioSource, public FileSource {
public:
virtual ~AudioFileSource ();
std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
static bool get_soundfile_info (const std::string& path, SoundFileInfo& _info, std::string& error);
bool safe_file_extension (const std::string& path) const {
return safe_audio_file_extension(path);
}
virtual samplepos_t last_capture_start_sample() const { return 0; }
virtual void mark_capture_start (samplepos_t) {}
virtual void mark_capture_end () {}
virtual void clear_capture_marks() {}
virtual bool one_of_several_channels () const { return false; }
virtual void flush () = 0;
virtual int update_header (samplepos_t when, struct tm&, time_t) = 0;
virtual int flush_header () = 0;
void mark_streaming_write_completed (const WriterLock& lock);
int setup_peakfile ();
void set_gain (float g, bool temporarily = false);
XMLNode& get_state () const;
int set_state (const XMLNode&, int version);
bool can_truncate_peaks() const { return true; }
bool can_be_analysed() const { return _length.is_positive(); }
static bool safe_audio_file_extension (const std::string& path);
static bool is_empty (Session&, std::string path);
static void set_bwf_serial_number (int);
static void set_header_position_offset (samplecnt_t offset);
static PBD::Signal0<void> HeaderPositionOffsetChanged;
protected:
/** Constructor to be called for existing external-to-session files */
AudioFileSource (Session&, const std::string& path, Source::Flag flags);
/** Constructor to be called for new in-session files */
AudioFileSource (Session&, const std::string& path, const std::string& origin, Source::Flag flags,
SampleFormat samp_format, HeaderFormat hdr_format);
/** Constructor to be called for existing in-session files */
AudioFileSource (Session&, const XMLNode&, bool must_exist = true);
/** Constructor to be called for crash recovery. Final argument is not
* used but exists to differentiate from the external-to-session
* constructor above.
*/
AudioFileSource (Session&, const std::string& path, Source::Flag flags, bool);
int init (const std::string& idstr, bool must_exist);
virtual void set_header_natural_position () = 0;
virtual void handle_header_position_change () {}
int move_dependents_to_trash();
static Sample* get_interleave_buffer (samplecnt_t size);
static char bwf_country_code[3];
static char bwf_organization_code[4];
static char bwf_serial_number[13];
/** Kept up to date with the position of the session location start */
static samplecnt_t header_position_offset;
};
} // namespace ARDOUR
#endif /* __ardour_audiofilesource_h__ */