rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 183 insertions, 0 deletions

diff --git a/libs/ardour/ardour/audiofilesource.h b/libs/ardour/ardour/audiofilesource.h
new file mode 100644
index 0000000000..de388a06fc
--- /dev/null
+++ b/libs/ardour/ardour/audiofilesource.h
@@ -0,0 +1,183 @@
+/*
+    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>
+
+namespace ARDOUR {
+
+class non_existent_source : public std::exception {
+  public:
+	virtual const char *what() const throw() { return "audio file does not exist"; }
+};
+
+struct SoundFileInfo {
+    float       samplerate;
+    uint16_t    channels;
+    int64_t     length;
+    std::string format_name;
+    int64_t     timecode;
+};
+
+class AudioFileSource : public AudioSource {
+  public:
+	enum Flag {
+		Writable = 0x1,
+		CanRename = 0x2,
+		Broadcast = 0x4,
+		Removable = 0x8,
+		RemovableIfEmpty = 0x10,
+		RemoveAtDestroy = 0x20,
+		NoPeakFile = 0x40,
+		Destructive = 0x80
+	};
+
+	virtual ~AudioFileSource ();
+
+	bool set_name (const std::string& newname) { return (set_source_name(newname, destructive()) == 0); }
+	int set_source_name (Glib::ustring newname, bool destructive);
+	
+	Glib::ustring path() const { return _path; }
+	Glib::ustring peak_path (Glib::ustring audio_path);
+	Glib::ustring find_broken_peakfile (Glib::ustring missing_peak_path,
+					     Glib::ustring audio_path);
+
+	uint16_t channel() const { return _channel; }
+
+	static void set_peak_dir (Glib::ustring dir) { peak_dir = dir; }
+
+	static bool get_soundfile_info (Glib::ustring path, SoundFileInfo& _info, std::string& error);
+
+	static bool safe_file_extension (Glib::ustring path);
+
+	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 nframes_t last_capture_start_frame() const { return 0; }
+	virtual void           mark_capture_start (nframes_t) {}
+	virtual void           mark_capture_end () {}
+	virtual void           clear_capture_marks() {}
+	virtual bool           one_of_several_channels () const { return false; }
+
+	virtual int update_header (nframes_t when, struct tm&, time_t) = 0;
+	virtual int flush_header () = 0;
+
+	int move_to_trash (const Glib::ustring& trash_dir_name);
+
+	static bool is_empty (Session&, Glib::ustring path);
+	void mark_streaming_write_completed ();
+
+	void   mark_take (Glib::ustring);
+	Glib::ustring take_id() const { return _take_id; }
+
+	bool is_embedded() const { return _is_embedded; }
+
+	static void set_bwf_serial_number (int);
+	
+	static void set_search_path (Glib::ustring string);
+	static void set_header_position_offset (nframes_t offset );
+
+	int setup_peakfile ();
+
+	static sigc::signal<void> HeaderPositionOffsetChanged;
+
+	XMLNode& get_state ();
+	int set_state (const XMLNode&);
+
+	bool destructive() const { return (_flags & Destructive); }
+	virtual bool set_destructive (bool yn) { return false; }
+	bool can_truncate_peaks() const { return !destructive(); }
+
+	Flag flags() const { return _flags; }
+
+	void mark_immutable ();
+
+	/* this should really be protected, but C++ is getting stricter
+	   and creating slots from protected member functions is starting
+	   to cause issues.
+	*/
+
+	virtual void handle_header_position_change () {}
+
+	bool can_be_analysed() const { return _length > 0; } 
+
+  protected:
+	
+	/* constructor to be called for existing external-to-session files */
+
+	AudioFileSource (Session&, Glib::ustring path, Flag flags);
+
+	/* constructor to be called for new in-session files */
+
+	AudioFileSource (Session&, Glib::ustring path, Flag flags,
+			 SampleFormat samp_format, HeaderFormat hdr_format);
+
+	/* constructor to be called for existing in-session files */
+
+	AudioFileSource (Session&, const XMLNode&, bool must_exit = true);
+
+	int init (Glib::ustring idstr, bool must_exist);
+
+	Glib::ustring _path;
+	Flag          _flags;
+	Glib::ustring _take_id;
+	int64_t       timeline_position;
+	bool           file_is_new;
+	uint16_t      _channel;
+
+	bool          _is_embedded;
+	static bool determine_embeddedness(Glib::ustring path);
+
+	static Glib::ustring peak_dir;
+	static Glib::ustring 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;
+
+	virtual void set_timeline_position (int64_t pos);
+	virtual void set_header_timeline_position () = 0;
+
+	bool find (Glib::ustring& path, bool must_exist, bool& is_new, uint16_t& chan);
+	bool removable() const;
+	bool writable() const { return _flags & Writable; }
+
+	static Sample* get_interleave_buffer (nframes_t size);
+
+  private:
+	Glib::ustring old_peak_path (Glib::ustring audio_path);
+	Glib::ustring broken_peak_path (Glib::ustring audio_path);
+};
+
+} // namespace ARDOUR
+
+#endif /* __ardour_audiofilesource_h__ */
+