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/*
Copyright (C) 2006 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_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;
};
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);
}
/* this block of methods do nothing for regular file sources, but are significant
for files used in destructive recording.
*/
virtual framepos_t last_capture_start_frame() const { return 0; }
virtual void mark_capture_start (framepos_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 (framepos_t when, struct tm&, time_t) = 0;
virtual int flush_header () = 0;
void mark_streaming_write_completed (const Lock& lock);
int setup_peakfile ();
void set_gain (float g, bool temporarily = false);
XMLNode& get_state ();
int set_state (const XMLNode&, int version);
bool can_truncate_peaks() const { return !destructive(); }
bool can_be_analysed() const { return _length > 0; }
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 (framecnt_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_timeline_position () = 0;
virtual void handle_header_position_change () {}
int move_dependents_to_trash();
static Sample* get_interleave_buffer (framecnt_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 framecnt_t header_position_offset;
};
} // namespace ARDOUR
#endif /* __ardour_audiofilesource_h__ */
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