ardour/libs/ardour/ardour/audio_playlist_source.h

73 lines
2.3 KiB
C++

/*
* Copyright (C) 2011-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015 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_audio_playlist_source_h__
#define __ardour_audio_playlist_source_h__
#include <memory>
#include <string>
#include "ardour/ardour.h"
#include "ardour/audiosource.h"
#include "ardour/playlist_source.h"
namespace ARDOUR {
class AudioPlaylist;
class LIBARDOUR_API AudioPlaylistSource : public PlaylistSource, public AudioSource {
public:
virtual ~AudioPlaylistSource ();
bool empty() const;
std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
uint32_t n_channels() const;
bool clamped_at_unity () const { return false; }
samplecnt_t read_unlocked (Sample *dst, samplepos_t start, samplecnt_t cnt) const;
samplecnt_t write_unlocked (Sample *src, samplecnt_t cnt);
float sample_rate () const;
int setup_peakfile ();
XMLNode& get_state () const;
int set_state (const XMLNode&, int version);
bool can_truncate_peaks() const { return false; }
bool can_be_analysed() const { return _length.is_positive(); }
protected:
friend class SourceFactory;
AudioPlaylistSource (Session&, const PBD::ID& orig, const std::string& name, std::shared_ptr<AudioPlaylist>, uint32_t chn,
timepos_t const & begin, timepos_t const & len, Source::Flag flags);
AudioPlaylistSource (Session&, const XMLNode&);
private:
uint32_t _playlist_channel;
std::string _peak_path;
int set_state (const XMLNode&, int version, bool with_descendants);
};
} /* namespace */
#endif /* __ardour_audio_playlist_source_h__ */