more file add/remove ops related to sndfile changes

git-svn-id: svn://localhost/ardour2/trunk@591 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 157 insertions, 0 deletions

diff --git a/libs/ardour/ardour/audiofilesource.h b/libs/ardour/ardour/audiofilesource.h
new file mode 100644
index 0000000000..ecbac569d5
--- /dev/null
+++ b/libs/ardour/ardour/audiofilesource.h
@@ -0,0 +1,157 @@
+/*
+    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 <time.h>
+
+#include <ardour/audiosource.h>
+
+namespace ARDOUR {
+
+struct SoundFileInfo {
+    float       samplerate;
+    uint16_t    channels;
+    int64_t     length;
+    std::string format_name;
+};
+
+class AudioFileSource : public AudioSource {
+  public:
+	enum Flag {
+		Writable = 0x1,
+		CanRename = 0x2,
+		Broadcast = 0x4,
+		Removable = 0x8,
+		RemovableIfEmpty = 0x10,
+		RemoveAtDestroy = 0x20,
+		BuildPeaks = 0x40
+	};
+
+	virtual ~AudioFileSource ();
+
+	int set_name (string newname, bool destructive);
+
+	string path() const { return _path; }
+	string peak_path (string audio_path);
+	string old_peak_path (string audio_path);
+
+	static void set_peak_dir (string dir) { peak_dir = dir; }
+
+	/* factory for an existing but not-used-in-session audio file. this exists
+	   because there maybe multiple back-end derivations of AudioFileSource,
+	   some of which can handle formats that cannot be handled by others.
+	   For example, CoreAudioFileSource can handle MP3 files, which SndFileSource
+	   cannot.
+	 */
+
+	static AudioFileSource* create (string path_plus_channel);
+	static AudioFileSource* create (const XMLNode&);
+
+	static bool get_soundfile_info (string path, SoundFileInfo& _info, string& error);
+
+	void set_allow_remove_if_empty (bool yn);
+	void mark_for_remove();
+
+	/* this block of methods do nothing for regular file sources, but are significant
+	   for files used in destructive recording.
+	*/
+
+	virtual jack_nframes_t last_capture_start_frame() const { return 0; }
+	virtual void           mark_capture_start (jack_nframes_t) {}
+	virtual void           mark_capture_end () {}
+	virtual void           clear_capture_marks() {}
+
+	virtual int update_header (jack_nframes_t when, struct tm&, time_t) = 0;
+	virtual int flush_header () = 0;
+
+	int move_to_trash (const string trash_dir_name);
+
+	static bool is_empty (string path);
+	void mark_streaming_write_completed ();
+
+	void   mark_take (string);
+	string take_id() const { return _take_id; }
+
+	static void set_bwf_country_code (string x);
+	static void set_bwf_organization_code (string x);
+	static void set_bwf_serial_number (int);
+	
+	static void set_search_path (string);
+	static void set_header_position_offset (jack_nframes_t offset, bool negative);
+
+	static sigc::signal<void,struct tm*, time_t> HeaderPositionOffsetChanged;
+
+	XMLNode& get_state ();
+	int set_state (const XMLNode&);
+
+	/* this should really be protected, but C++ is getting stricter
+	   and creating slots from protected member functions is starting
+	   to cause issues.
+	*/
+
+	void handle_header_position_change (struct tm*, time_t tnow);
+
+  protected:
+	
+	/* constructor to be called for existing external-to-session files */
+
+	AudioFileSource (std::string path, Flag flags);
+
+	/* constructor to be called for new in-session files */
+
+	AudioFileSource (std::string path, Flag flags,
+			 SampleFormat samp_format, HeaderFormat hdr_format);
+
+	/* constructor to be called for existing in-session files */
+
+	AudioFileSource (const XMLNode&);
+
+	int init (string idstr, bool must_exist);
+
+	uint16_t       channel;
+	string        _path;
+	Flag          _flags;
+	string        _take_id;
+	bool           allow_remove_if_empty;
+	uint64_t       timeline_position;
+
+	static string peak_dir;
+	static string search_path;
+
+	static char bwf_country_code[3];
+	static char bwf_organization_code[4];
+	static char bwf_serial_number[13];
+
+	static uint64_t header_position_offset;
+	static bool     header_position_negative;
+
+	virtual void set_timeline_position (jack_nframes_t pos);
+	virtual void set_header_timeline_position () = 0;
+
+	bool find (std::string path, bool must_exist, bool& is_new);
+	bool removable() const;
+	bool writable() const { return _flags & Writable; }
+};
+
+}; /* namespace ARDOUR */
+
+#endif /* __ardour_audiofilesource_h__ */
+