remove empty sigc++2 directory

git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 0 insertions, 900 deletions

diff --git a/libs/ardour/sndfilesource.cc b/libs/ardour/sndfilesource.cc
deleted file mode 100644
index ab090381b4..0000000000
--- a/libs/ardour/sndfilesource.cc
+++ /dev/null
@@ -1,900 +0,0 @@
-/*
-    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.
-
-*/
-
-#include <cstring>
-#include <cerrno>
-#include <climits>
-
-#include <pwd.h>
-#include <sys/utsname.h>
-#include <sys/stat.h>
-
-#include <glibmm/miscutils.h>
-#include <ardour/sndfilesource.h>
-#include <ardour/sndfile_helpers.h>
-#include <ardour/utils.h>
-
-#include "i18n.h"
-
-using namespace std;
-using namespace ARDOUR;
-using namespace PBD;
-using Glib::ustring;
-
-gain_t* SndFileSource::out_coefficient = 0;
-gain_t* SndFileSource::in_coefficient = 0;
-nframes_t SndFileSource::xfade_frames = 64;
-const AudioFileSource::Flag SndFileSource::default_writable_flags = AudioFileSource::Flag (AudioFileSource::Writable|
-											   AudioFileSource::Removable|
-											   AudioFileSource::RemovableIfEmpty|
-											   AudioFileSource::CanRename);
-SndFileSource::SndFileSource (Session& s, const XMLNode& node)
-	: AudioFileSource (s, node)
-{
-	init ();
-
-	if (open()) {
-		throw failed_constructor ();
-	}
-}
-
-SndFileSource::SndFileSource (Session& s, ustring path, int chn, Flag flags)
-          /* files created this way are never writable or removable */
-	: AudioFileSource (s, path, Flag (flags & ~(Writable|Removable|RemovableIfEmpty|RemoveAtDestroy)))
-{
-	_channel = chn;
-
-	init ();
-
-	if (open()) {
-		throw failed_constructor ();
-	}
-}
-
-SndFileSource::SndFileSource (Session& s, ustring path, SampleFormat sfmt, HeaderFormat hf, nframes_t rate, Flag flags)
-	: AudioFileSource (s, path, flags, sfmt, hf)
-{
-	int fmt = 0;
-
-	init ();
-
-	/* this constructor is used to construct new files, not open
-	   existing ones.
-	*/
-
-	file_is_new = true;
-
-	switch (hf) {
-	case CAF:
-		fmt = SF_FORMAT_CAF;
-		_flags = Flag (_flags & ~Broadcast);
-		break;
-
-	case AIFF:
-		fmt = SF_FORMAT_AIFF;
-		_flags = Flag (_flags & ~Broadcast);
-		break;
-
-	case BWF:
-		fmt = SF_FORMAT_WAV;
-		_flags = Flag (_flags | Broadcast);
-		break;
-
-	case WAVE:
-		fmt = SF_FORMAT_WAV;
-		_flags = Flag (_flags & ~Broadcast);
-		break;
-
-	case WAVE64:
-		fmt = SF_FORMAT_W64;
-		_flags = Flag (_flags & ~Broadcast);
-		break;
-
-	default:
-		fatal << string_compose (_("programming error: %1"), X_("unsupported audio header format requested")) << endmsg;
-		/*NOTREACHED*/
-		break;
-
-	}
-
-	switch (sfmt) {
-	case FormatFloat:
-		fmt |= SF_FORMAT_FLOAT;
-		break;
-
-	case FormatInt24:
-		fmt |= SF_FORMAT_PCM_24;
-		break;
-
-	case FormatInt16:
-		fmt |= SF_FORMAT_PCM_16;
-		break;
-	}
-	
-	_info.channels = 1;
-	_info.samplerate = rate;
-	_info.format = fmt;
-
-	if (open()) {
-		throw failed_constructor();
-	}
-
-	if (writable() && (_flags & Broadcast)) {
-
-		_broadcast_info = new SF_BROADCAST_INFO;
-		memset (_broadcast_info, 0, sizeof (*_broadcast_info));
-		
-		snprintf (_broadcast_info->description, sizeof (_broadcast_info->description), "BWF %s", _name.c_str());
-		
-		struct utsname utsinfo;
-
-		if (uname (&utsinfo)) {
-			error << string_compose(_("FileSource: cannot get host information for BWF header (%1)"), strerror(errno)) << endmsg;
-			return;
-		}
-		
-		snprintf (_broadcast_info->originator, sizeof (_broadcast_info->originator), "ardour:%s:%s:%s:%s:%s)", 
-			  Glib::get_real_name().c_str(),
-			  utsinfo.nodename,
-			  utsinfo.sysname,
-			  utsinfo.release,
-			  utsinfo.version);
-		
-		_broadcast_info->version = 1;  
-		_broadcast_info->time_reference_low = 0;  
-		_broadcast_info->time_reference_high = 0;  
-		
-		/* XXX do something about this field */
-		
-		snprintf (_broadcast_info->umid, sizeof (_broadcast_info->umid), "%s", "fnord");
-		
-		/* coding history is added by libsndfile */
-
-		if (sf_command (sf, SFC_SET_BROADCAST_INFO, _broadcast_info, sizeof (_broadcast_info)) != SF_TRUE) {
-			char errbuf[256];
-			sf_error_str (0, errbuf, sizeof (errbuf) - 1);
-			error << string_compose (_("cannot set broadcast info for audio file %1 (%2); dropping broadcast info for this file"), _path, errbuf) << endmsg;
-			_flags = Flag (_flags & ~Broadcast);
-			delete _broadcast_info;
-			_broadcast_info = 0;
-		} 
-	} 
-}
-
-void 
-SndFileSource::init ()
-{
-	ustring file;
-
-	// lets try to keep the object initalizations here at the top
-	xfade_buf = 0;
-	sf = 0;
-	_broadcast_info = 0;
-
-	if (is_embedded()) {
-		_name = _path;
-	} else {
-		_name = Glib::path_get_basename (_path);
-	}
-
-	/* although libsndfile says we don't need to set this,
-	   valgrind and source code shows us that we do.
-	*/
-
-	memset (&_info, 0, sizeof(_info));
-
-	_capture_start = false;
-	_capture_end = false;
-	file_pos = 0;
-
-	if (destructive()) {	
-		xfade_buf = new Sample[xfade_frames];
-		timeline_position = header_position_offset;
-	}
-
-	AudioFileSource::HeaderPositionOffsetChanged.connect (mem_fun (*this, &SndFileSource::handle_header_position_change));
-}
-
-int
-SndFileSource::open ()
-{
-	if ((sf = sf_open (_path.c_str(), (writable() ? SFM_RDWR : SFM_READ), &_info)) == 0) {
-		char errbuf[256];
-		sf_error_str (0, errbuf, sizeof (errbuf) - 1);
-#ifndef HAVE_COREAUDIO
-		/* if we have CoreAudio, we will be falling back to that if libsndfile fails,
-		   so we don't want to see this message.
-		*/
-
-		error << string_compose(_("SndFileSource: cannot open file \"%1\" for %2 (%3)"), 
-					_path, (writable() ? "read+write" : "reading"), errbuf) << endmsg;
-#endif
-		return -1;
-	}
-
-	if (_channel >= _info.channels) {
-#ifndef HAVE_COREAUDIO
-		error << string_compose(_("SndFileSource: file only contains %1 channels; %2 is invalid as a channel number"), _info.channels, _channel) << endmsg;
-#endif
-		sf_close (sf);
-		sf = 0;
-		return -1;
-	}
-
-	_length = _info.frames;
-
-	_broadcast_info = new SF_BROADCAST_INFO;
-	memset (_broadcast_info, 0, sizeof (*_broadcast_info));
-	
-	bool timecode_info_exists;
-
-	set_timeline_position (get_timecode_info (sf, _broadcast_info, timecode_info_exists));
-
-	if (_length != 0 && !timecode_info_exists) {
-		delete _broadcast_info;
-		_broadcast_info = 0;
-		_flags = Flag (_flags & ~Broadcast);
-	}
-
-	if (writable()) {
-		sf_command (sf, SFC_SET_UPDATE_HEADER_AUTO, 0, SF_FALSE);
-	}
-
-	return 0;
-}
-
-SndFileSource::~SndFileSource ()
-{
-	GoingAway (); /* EMIT SIGNAL */
-
-	if (sf) {
-		sf_close (sf);
-		sf = 0;
-
-		/* stupid libsndfile updated the headers on close,
-		   so touch the peakfile if it exists and has data
-		   to make sure its time is as new as the audio
-		   file.
-		*/
-
-		touch_peakfile ();
-	}
-
-	if (_broadcast_info) {
-		delete _broadcast_info;
-	}
-
-	if (xfade_buf) {
-		delete [] xfade_buf;
-	}
-}
-
-float
-SndFileSource::sample_rate () const 
-{
-	return _info.samplerate;
-}
-
-nframes_t
-SndFileSource::read_unlocked (Sample *dst, nframes_t start, nframes_t cnt) const
-{
-	int32_t nread;
-	float *ptr;
-	uint32_t real_cnt;
-	nframes_t file_cnt;
-
-	if (start > _length) {
-
-		/* read starts beyond end of data, just memset to zero */
-		
-		file_cnt = 0;
-
-	} else if (start + cnt > _length) {
-		
-		/* read ends beyond end of data, read some, memset the rest */
-		
-		file_cnt = _length - start;
-
-	} else {
-		
-		/* read is entirely within data */
-
-		file_cnt = cnt;
-	}
-	
-	if (file_cnt != cnt) {
-		nframes_t delta = cnt - file_cnt;
-		memset (dst+file_cnt, 0, sizeof (Sample) * delta);
-	}
-
-	if (file_cnt) {
-
-		if (sf_seek (sf, (sf_count_t) start, SEEK_SET|SFM_READ) != (sf_count_t) start) {
-			char errbuf[256];
-			sf_error_str (0, errbuf, sizeof (errbuf) - 1);
-			error << string_compose(_("SndFileSource: could not seek to frame %1 within %2 (%3)"), start, _name.substr (1), errbuf) << endmsg;
-			return 0;
-		}
-		
-		if (_info.channels == 1) {
-			nframes_t ret = sf_read_float (sf, dst, file_cnt);
-			_read_data_count = cnt * sizeof(float);
-			return ret;
-		}
-	}
-
-	real_cnt = cnt * _info.channels;
-
-	Sample* interleave_buf = get_interleave_buffer (real_cnt);
-	
-	nread = sf_read_float (sf, interleave_buf, real_cnt);
-	ptr = interleave_buf + _channel;
-	nread /= _info.channels;
-	
-	/* stride through the interleaved data */
-	
-	for (int32_t n = 0; n < nread; ++n) {
-		dst[n] = *ptr;
-		ptr += _info.channels;
-	}
-
-	_read_data_count = cnt * sizeof(float);
-		
-	return nread;
-}
-
-nframes_t 
-SndFileSource::write_unlocked (Sample *data, nframes_t cnt)
-{
-	if (destructive()) {
-		return destructive_write_unlocked (data, cnt);
-	} else {
-		return nondestructive_write_unlocked (data, cnt);
-	}
-}
-
-nframes_t 
-SndFileSource::nondestructive_write_unlocked (Sample *data, nframes_t cnt)
-{
-	if (!writable()) {
-		warning << string_compose (_("attempt to write a non-writable audio file source (%1)"), _path) << endmsg;
-		return 0;
-	}
-
-	if (_info.channels != 1) {
-		fatal << string_compose (_("programming error: %1 %2"), X_("SndFileSource::write called on non-mono file"), _path) << endmsg;
-		/*NOTREACHED*/
-		return 0;
-	}
-	
-	nframes_t oldlen;
-	int32_t frame_pos = _length;
-
-	if (write_float (data, frame_pos, cnt) != cnt) {
-		return 0;
-	}
-
-	oldlen = _length;
-	update_length (oldlen, cnt);
-
-	if (_build_peakfiles) {
-		compute_and_write_peaks (data, frame_pos, cnt, false, true);
-	}
-
-	_write_data_count = cnt;
-	
-	return cnt;
-}
-
-nframes_t
-SndFileSource::destructive_write_unlocked (Sample* data, nframes_t cnt)
-{
-	nframes_t old_file_pos;
-
-	if (!writable()) {
-		warning << string_compose (_("attempt to write a non-writable audio file source (%1)"), _path) << endmsg;
-		return 0;
-	}
-
-	if (_capture_start && _capture_end) {
-
-		/* start and end of capture both occur within the data we are writing,
-		   so do both crossfades.
-		*/
-
-		_capture_start = false;
-		_capture_end = false;
-		
-		/* move to the correct location place */
-		file_pos = capture_start_frame - timeline_position;
-		
-		// split cnt in half
-		nframes_t subcnt = cnt / 2;
-		nframes_t ofilepos = file_pos;
-		
-		// fade in
-		if (crossfade (data, subcnt, 1) != subcnt) {
-			return 0;
-		}
-		
-		file_pos += subcnt;
-		Sample * tmpdata = data + subcnt;
-		
-		// fade out
-		subcnt = cnt - subcnt;
-		if (crossfade (tmpdata, subcnt, 0) != subcnt) {
-			return 0;
-		}
-		
-		file_pos = ofilepos; // adjusted below
-
-	} else if (_capture_start) {
-
-		/* start of capture both occur within the data we are writing,
-		   so do the fade in
-		*/
-
-		_capture_start = false;
-		_capture_end = false;
-		
-		/* move to the correct location place */
-		file_pos = capture_start_frame - timeline_position;
-
-		if (crossfade (data, cnt, 1) != cnt) {
-			return 0;
-		}
-		
-	} else if (_capture_end) {
-
-		/* end of capture both occur within the data we are writing,
-		   so do the fade out
-		*/
-
-		_capture_start = false;
-		_capture_end = false;
-		
-		if (crossfade (data, cnt, 0) != cnt) {
-			return 0;
-		}
-
-	} else {
-
-		/* in the middle of recording */
-
-		if (write_float (data, file_pos, cnt) != cnt) {
-			return 0;
-		}
-	}
-
-	old_file_pos = file_pos;
-	update_length (file_pos, cnt);
-
-	if (_build_peakfiles) {
-		compute_and_write_peaks (data, file_pos, cnt, false, true);
-	}
-
-	file_pos += cnt;
-	
-	return cnt;
-}
-
-int
-SndFileSource::update_header (nframes_t when, struct tm& now, time_t tnow)
-{	
-	set_timeline_position (when);
-
-	if (_flags & Broadcast) {
-		if (setup_broadcast_info (when, now, tnow)) {
-			return -1;
-		}
-	} 
-
-	return flush_header ();
-}
-
-int
-SndFileSource::flush_header ()
-{
-	if (!writable() || (sf == 0)) {
-		warning << string_compose (_("attempt to flush a non-writable audio file source (%1)"), _path) << endmsg;
-		return -1;
-	}
-	return (sf_command (sf, SFC_UPDATE_HEADER_NOW, 0, 0) != SF_TRUE);
-}
-
-int
-SndFileSource::setup_broadcast_info (nframes_t when, struct tm& now, time_t tnow)
-{
-	if (!writable()) {
-		warning << string_compose (_("attempt to store broadcast info in a non-writable audio file source (%1)"), _path) << endmsg;
-		return -1;
-	}
-
-	if (!(_flags & Broadcast)) {
-		return 0;
-	}
-
-	/* random code is 9 digits */
-	
-	int random_code = random() % 999999999;
-	
-	snprintf (_broadcast_info->originator_reference, sizeof (_broadcast_info->originator_reference), "%2s%3s%12s%02d%02d%02d%9d",
-		  Config->get_bwf_country_code().c_str(),
-		  Config->get_bwf_organization_code().c_str(),
-		  bwf_serial_number,
-		  now.tm_hour,
-		  now.tm_min,
-		  now.tm_sec,
-		  random_code);
-	
-	snprintf (_broadcast_info->origination_date, sizeof (_broadcast_info->origination_date), "%4d-%02d-%02d",
-		  1900 + now.tm_year,
-		  now.tm_mon,
-		  now.tm_mday);
-	
-	snprintf (_broadcast_info->origination_time, sizeof (_broadcast_info->origination_time), "%02d:%02d:%02d",
-		  now.tm_hour,
-		  now.tm_min,
-		  now.tm_sec);
-
-	/* now update header position taking header offset into account */
-	
-	set_header_timeline_position ();
-
-	if (sf_command (sf, SFC_SET_BROADCAST_INFO, _broadcast_info, sizeof (*_broadcast_info)) != SF_TRUE) {
-		error << string_compose (_("cannot set broadcast info for audio file %1; Dropping broadcast info for this file"), _path) << endmsg;
-		_flags = Flag (_flags & ~Broadcast);
-		delete _broadcast_info;
-		_broadcast_info = 0;
-		return -1;
-	}
-
-	return 0;
-}
-
-void
-SndFileSource::set_header_timeline_position ()
-{
-	if (!(_flags & Broadcast)) {
-		return;
-	}
-
-	_broadcast_info->time_reference_high = (timeline_position >> 32);
-	_broadcast_info->time_reference_low = (timeline_position & 0xffffffff);
-
-	if (sf_command (sf, SFC_SET_BROADCAST_INFO, _broadcast_info, sizeof (*_broadcast_info)) != SF_TRUE) {
-		error << string_compose (_("cannot set broadcast info for audio file %1; Dropping broadcast info for this file"), _path) << endmsg;
-		_flags = Flag (_flags & ~Broadcast);
-		delete _broadcast_info;
-		_broadcast_info = 0;
-	}
-}
-
-nframes_t
-SndFileSource::write_float (Sample* data, nframes_t frame_pos, nframes_t cnt)
-{
-	if (sf_seek (sf, frame_pos, SEEK_SET|SFM_WRITE) < 0) {
-		char errbuf[256];
-		sf_error_str (0, errbuf, sizeof (errbuf) - 1);
-		error << string_compose (_("%1: cannot seek to %2 (libsndfile error: %3"), _path, frame_pos, errbuf) << endmsg;
-		return 0;
-	}
-	
-	if (sf_writef_float (sf, data, cnt) != (ssize_t) cnt) {
-		return 0;
-	}
-	
-	return cnt;
-}
-
-nframes_t
-SndFileSource::natural_position() const
-{
-	return timeline_position;
-}
-
-bool
-SndFileSource::set_destructive (bool yn)
-{
-	if (yn) {
-		_flags = Flag (_flags | Destructive);
-		if (!xfade_buf) {
-			xfade_buf = new Sample[xfade_frames];
-		}
-		clear_capture_marks ();
-		timeline_position = header_position_offset;
-	} else {
-		_flags = Flag (_flags & ~Destructive);
-		timeline_position = 0;
-		/* leave xfade buf alone in case we need it again later */
-	}
-
-	return true;
-}
-
-void
-SndFileSource::clear_capture_marks ()
-{
-	_capture_start = false;
-	_capture_end = false;
-}	
-
-void
-SndFileSource::mark_capture_start (nframes_t pos)
-{
-	if (destructive()) {
-		if (pos < timeline_position) {
-			_capture_start = false;
-		} else {
-			_capture_start = true;
-			capture_start_frame = pos;
-		}
-	}
-}
-
-void
-SndFileSource::mark_capture_end()
-{
-	if (destructive()) {
-		_capture_end = true;
-	}
-}
-
-nframes_t
-SndFileSource::crossfade (Sample* data, nframes_t cnt, int fade_in)
-{
-	nframes_t xfade = min (xfade_frames, cnt);
-	nframes_t nofade = cnt - xfade;
-	Sample* fade_data = 0;
-	nframes_t fade_position = 0; // in frames
-	ssize_t retval;
-	nframes_t file_cnt;
-
-	if (fade_in) {
-		fade_position = file_pos;
-		fade_data = data;
-	} else {
-		fade_position = file_pos + nofade;
-		fade_data = data + nofade;
-	}
-
-	if (fade_position > _length) {
-		
-		/* read starts beyond end of data, just memset to zero */
-		
-		file_cnt = 0;
-
-	} else if (fade_position + xfade > _length) {
-		
-		/* read ends beyond end of data, read some, memset the rest */
-		
-		file_cnt = _length - fade_position;
-
-	} else {
-		
-		/* read is entirely within data */
-
-		file_cnt = xfade;
-	}
-
-	if (file_cnt) {
-		
-		if ((retval = read_unlocked (xfade_buf, fade_position, file_cnt)) != (ssize_t) file_cnt) {
-			if (retval >= 0 && errno == EAGAIN) {
-				/* XXX - can we really trust that errno is meaningful here?  yes POSIX, i'm talking to you.
-				 * short or no data there */
-				memset (xfade_buf, 0, xfade * sizeof(Sample));
-			} else {
-				error << string_compose(_("SndFileSource: \"%1\" bad read retval: %2 of %5 (%3: %4)"), _path, retval, errno, strerror (errno), xfade) << endmsg;
-				return 0;
-			}
-		}
-	} 
-
-	if (file_cnt != xfade) {
-		nframes_t delta = xfade - file_cnt;
-		memset (xfade_buf+file_cnt, 0, sizeof (Sample) * delta);
-	}
-	
-	if (nofade && !fade_in) {
-		if (write_float (data, file_pos, nofade) != nofade) {
-			error << string_compose(_("SndFileSource: \"%1\" bad write (%2)"), _path, strerror (errno)) << endmsg;
-			return 0;
-		}
-	}
-
-	if (xfade == xfade_frames) {
-
-		nframes_t n;
-
-		/* use the standard xfade curve */
-		
-		if (fade_in) {
-
-			/* fade new material in */
-			
-			for (n = 0; n < xfade; ++n) {
-				xfade_buf[n] = (xfade_buf[n] * out_coefficient[n]) + (fade_data[n] * in_coefficient[n]);
-			}
-
-		} else {
-
-
-			/* fade new material out */
-			
-			for (n = 0; n < xfade; ++n) {
-				xfade_buf[n] = (xfade_buf[n] * in_coefficient[n]) + (fade_data[n] * out_coefficient[n]);
-			}
-		}
-
-	} else if (xfade < xfade_frames) {
-
-		gain_t in[xfade];
-		gain_t out[xfade];
-
-		/* short xfade, compute custom curve */
-
-		compute_equal_power_fades (xfade, in, out);
-
-		for (nframes_t n = 0; n < xfade; ++n) {
-			xfade_buf[n] = (xfade_buf[n] * out[n]) + (fade_data[n] * in[n]);		
-		}
-
-	} else if (xfade) {
-
-		/* long xfade length, has to be computed across several calls */
-
-	}
-
-	if (xfade) {
-		if (write_float (xfade_buf, fade_position, xfade) != xfade) {
-			error << string_compose(_("SndFileSource: \"%1\" bad write (%2)"), _path, strerror (errno)) << endmsg;
-			return 0;
-		}
-	}
-	
-	if (fade_in && nofade) {
-		if (write_float (data + xfade, file_pos + xfade, nofade) != nofade) {
-			error << string_compose(_("SndFileSource: \"%1\" bad write (%2)"), _path, strerror (errno)) << endmsg;
-			return 0;
-		}
-	}
-
-	return cnt;
-}
-
-nframes_t
-SndFileSource::last_capture_start_frame () const
-{
-	if (destructive()) {
-		return capture_start_frame;
-	} else {
-		return 0;
-	}
-}
-
-void
-SndFileSource::handle_header_position_change ()
-{
-	if (destructive()) {
-		if ( _length != 0 ) {
-			error << string_compose(_("Filesource: start time is already set for existing file (%1): Cannot change start time."), _path ) << endmsg;
-			//in the future, pop up a dialog here that allows user to regenerate file with new start offset
-		} else if (writable()) {
-			timeline_position = header_position_offset;
-			set_header_timeline_position ();  //this will get flushed if/when the file is recorded to
-		}
-	}
-}
-
-void
-SndFileSource::setup_standard_crossfades (nframes_t rate)
-{
-	/* This static method is assumed to have been called by the Session
-	   before any DFS's are created.
-	*/
-
-	xfade_frames = (nframes_t) floor ((Config->get_destructive_xfade_msecs () / 1000.0) * rate);
-
-	if (out_coefficient) {
-		delete [] out_coefficient;
-	}
-
-	if (in_coefficient) {
-		delete [] in_coefficient;
-	}
-
-	out_coefficient = new gain_t[xfade_frames];
-	in_coefficient = new gain_t[xfade_frames];
-
-	compute_equal_power_fades (xfade_frames, in_coefficient, out_coefficient);
-}
-
-void
-SndFileSource::set_timeline_position (int64_t pos)
-{
-	// destructive track timeline postion does not change
-	// except at instantion or when header_position_offset 
-	// (session start) changes
-
-	if (!destructive()) {
-		AudioFileSource::set_timeline_position (pos);
-	} 
-}
-
-int
-SndFileSource::get_soundfile_info (const ustring& path, SoundFileInfo& info, string& error_msg)
-{
-	SNDFILE *sf;
-	SF_INFO sf_info;
-	SF_BROADCAST_INFO binfo;
-	bool timecode_exists;
-
-	sf_info.format = 0; // libsndfile says to clear this before sf_open().
-
-	if ((sf = sf_open ((char*) path.c_str(), SFM_READ, &sf_info)) == 0) { 
-		char errbuf[256];
-		error_msg = sf_error_str (0, errbuf, sizeof (errbuf) - 1);
-		return false;
-	}
-
-	info.samplerate  = sf_info.samplerate;
-	info.channels    = sf_info.channels;
-	info.length      = sf_info.frames;
-	info.format_name = string_compose("Format: %1, %2",
-					   sndfile_major_format(sf_info.format),
-					   sndfile_minor_format(sf_info.format));
-
-	memset (&binfo, 0, sizeof (binfo));
-	info.timecode  = get_timecode_info (sf, &binfo, timecode_exists);
-
-	if (!timecode_exists) {
-		info.timecode = 0;
-	}
-	
-	sf_close (sf);
-
-	return true;
-}
-
-int64_t
-SndFileSource::get_timecode_info (SNDFILE* sf, SF_BROADCAST_INFO* binfo, bool& exists)
-{
-	if (sf_command (sf, SFC_GET_BROADCAST_INFO, binfo, sizeof (*binfo)) != SF_TRUE) {
-		exists = false;
-		return (header_position_offset);
-	} 
-	
-	/* XXX 64 bit alert: when JACK switches to a 64 bit frame count, this needs to use the high bits
-	   of the time reference.
-	*/
-	
-	exists = true;
-	int64_t ret = (uint32_t) binfo->time_reference_high;
-	ret <<= 32;
-	ret |= (uint32_t) binfo->time_reference_low;
-	return ret;
-}
-
-bool
-SndFileSource::one_of_several_channels () const
-{
-	return _info.channels > 1;
-}
-