X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fsndfilesource.h;h=4579a32b6df9c6bfe19ec2591c708a1807702687;hb=f485cfa324717f57b9f820f43f1b53307b96a8b9;hp=a5000a4b63dcf4adc15243527e59fe4d2ee7040b;hpb=f9f5ec85fbfd15d0008f70d4185a84eeadfd3891;p=ardour.git

diff --git a/libs/ardour/ardour/sndfilesource.h b/libs/ardour/ardour/sndfilesource.h
index a5000a4b63..4579a32b6d 100644
--- a/libs/ardour/ardour/sndfilesource.h
+++ b/libs/ardour/ardour/sndfilesource.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2006 Paul Davis 
+    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
@@ -15,95 +15,104 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
-#ifndef __sndfile_source_h__ 
+#ifndef __sndfile_source_h__
 #define __sndfile_source_h__
 
 #include <sndfile.h>
 
-#include <ardour/audiofilesource.h>
+#include "ardour/audiofilesource.h"
+#include "ardour/broadcast_info.h"
 
 namespace ARDOUR {
 
-class SndFileSource : public AudioFileSource {
+class LIBARDOUR_API SndFileSource : public AudioFileSource {
   public:
-	/* constructor to be called for existing external-to-session files */
-
-	SndFileSource (Session&, std::string path, int chn, Flag flags);
-
-	/* constructor to be called for new in-session files */
-
-	SndFileSource (Session&, std::string path, SampleFormat samp_format, HeaderFormat hdr_format, nframes_t rate, 
-		       Flag flags = SndFileSource::default_writable_flags);
-		       
-	/* constructor to be called for existing in-session files */
-	
+	/** Constructor to be called for existing external-to-session files */
+	SndFileSource (Session&, const std::string& path, int chn, Flag flags);
+
+	/* Constructor to be called for new in-session files */
+	SndFileSource (Session&, const std::string& path, const std::string& origin,
+	               SampleFormat samp_format, HeaderFormat hdr_format, framecnt_t rate,
+	               Flag flags = SndFileSource::default_writable_flags);
+
+	/* Constructor to be called for recovering files being used for
+	 * capture. They are in-session, they already exist, they should not
+	 * be writable. They are an odd hybrid (from a constructor point of
+	 * view) of the previous two constructors.
+	 */
+	SndFileSource (Session&, const std::string& path, int chn);
+
+	/** Constructor to be called for existing in-session files during
+	 * session loading
+	 */
 	SndFileSource (Session&, const XMLNode&);
 
 	~SndFileSource ();
 
 	float sample_rate () const;
-	int update_header (nframes_t when, struct tm&, time_t);
+	int update_header (framepos_t when, struct tm&, time_t);
 	int flush_header ();
+	void flush ();
 
-	nframes_t natural_position () const;
+	framepos_t natural_position () const;
 
-	nframes_t last_capture_start_frame() const;
-	void mark_capture_start (nframes_t);
+	framepos_t last_capture_start_frame() const;
+	void mark_capture_start (framepos_t);
 	void mark_capture_end ();
 	void clear_capture_marks();
 
 	bool set_destructive (bool yn);
 
-	static void setup_standard_crossfades (nframes_t sample_rate);
-	static const AudioFileSource::Flag default_writable_flags;
+	bool one_of_several_channels () const;
+    uint32_t channel_count () const { return _info.channels; }
+
+	bool clamped_at_unity () const;
+
+	static void setup_standard_crossfades (Session const &, framecnt_t sample_rate);
+	static const Source::Flag default_writable_flags;
 
-	static int get_soundfile_info (string path, SoundFileInfo& _info, string& error_msg);
+	static int get_soundfile_info (const std::string& path, SoundFileInfo& _info, std::string& error_msg);
 
   protected:
-	void set_header_timeline_position ();
+	void close ();
 
-	nframes_t read_unlocked (Sample *dst, nframes_t start, nframes_t cnt) const;
-	nframes_t write_unlocked (Sample *dst, nframes_t cnt);
+	void set_path (const std::string& p);
+	void set_header_timeline_position ();
 
-	nframes_t write_float (Sample* data, nframes_t pos, nframes_t cnt);
+	framecnt_t read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const;
+	framecnt_t write_unlocked (Sample *dst, framecnt_t cnt);
+	framecnt_t write_float (Sample* data, framepos_t pos, framecnt_t cnt);
 
   private:
-	SNDFILE *sf;
+	SNDFILE* _sndfile;
 	SF_INFO _info;
-	SF_BROADCAST_INFO *_broadcast_info;
+	BroadcastInfo *_broadcast_info;
 
-	mutable float *interleave_buf;
-	mutable nframes_t interleave_bufsize;
-
-	void init ();
+	void init_sndfile ();
 	int open();
-	void close();
-	int setup_broadcast_info (nframes_t when, struct tm&, time_t);
+	int setup_broadcast_info (framepos_t when, struct tm&, time_t);
+	void file_closed ();
 
 	/* destructive */
 
-	static nframes_t xfade_frames;
+	static framecnt_t xfade_frames;
 	static gain_t* out_coefficient;
 	static gain_t* in_coefficient;
 
 	bool          _capture_start;
 	bool          _capture_end;
-	nframes_t      capture_start_frame;
-	nframes_t      file_pos; // unit is frames
-	nframes_t      xfade_out_count;
-	nframes_t      xfade_in_count;
+	framepos_t     capture_start_frame;
+	framepos_t     file_pos; // unit is frames
 	Sample*        xfade_buf;
 
-	nframes_t crossfade (Sample* data, nframes_t cnt, int dir);
-	void set_timeline_position (int64_t);
-	nframes_t destructive_write_unlocked (Sample *dst, nframes_t cnt);
-	nframes_t nondestructive_write_unlocked (Sample *dst, nframes_t cnt);
+	framecnt_t crossfade (Sample* data, framecnt_t cnt, int dir);
+	void set_timeline_position (framepos_t);
+	framecnt_t destructive_write_unlocked (Sample *dst, framecnt_t cnt);
+	framecnt_t nondestructive_write_unlocked (Sample *dst, framecnt_t cnt);
 	void handle_header_position_change ();
-
-	static int64_t get_timecode_info (SNDFILE* sf, SF_BROADCAST_INFO* binfo, bool& exists);
+	PBD::ScopedConnection header_position_connection;
 };
 
 } // namespace ARDOUR