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authorDoug McLain <doug@nostar.net>2008-06-02 05:02:28 +0000
committerDoug McLain <doug@nostar.net>2008-06-02 05:02:28 +0000
commit9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (patch)
tree96ec400b83b8c1c06852b1936f684b5fbcd47a79 /libs/ardour/st_stretch.cc
parent2f3f697bb8e185eb43c2c50b4eefc2bcb937f269 (diff)
remove empty sigc++2 directory
git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/st_stretch.cc')
-rw-r--r--libs/ardour/st_stretch.cc215
1 files changed, 0 insertions, 215 deletions
diff --git a/libs/ardour/st_stretch.cc b/libs/ardour/st_stretch.cc
deleted file mode 100644
index e96cd79f2d..0000000000
--- a/libs/ardour/st_stretch.cc
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- Copyright (C) 2004-2007 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 <algorithm>
-#include <cmath>
-
-#include <pbd/error.h>
-
-#include <ardour/types.h>
-#include <ardour/stretch.h>
-#include <ardour/audiofilesource.h>
-#include <ardour/session.h>
-#include <ardour/audioregion.h>
-
-#include "i18n.h"
-
-using namespace std;
-using namespace ARDOUR;
-using namespace PBD;
-using namespace soundtouch;
-
-Stretch::Stretch (Session& s, TimeFXRequest& req)
- : Filter (s)
- , tsr (req)
-{
- float percentage;
-
- /* the soundtouch code wants a *tempo* change percentage, which is
- of opposite sign to the length change.
- */
-
- percentage = -tsr.time_fraction;
-
- st.setSampleRate (s.frame_rate());
- st.setChannels (1);
- st.setTempoChange (percentage);
- st.setPitchSemiTones (0);
- st.setRateChange (0);
-
- st.setSetting(SETTING_USE_QUICKSEEK, tsr.quick_seek);
- st.setSetting(SETTING_USE_AA_FILTER, tsr.antialias);
-
- tsr.progress = 0.0f;
-}
-
-Stretch::~Stretch ()
-{
-}
-
-int
-Stretch::run (boost::shared_ptr<Region> a_region)
-{
- SourceList nsrcs;
- nframes_t total_frames;
- nframes_t done;
- int ret = -1;
- const nframes_t bufsize = 16384;
- gain_t *gain_buffer = 0;
- Sample *buffer = 0;
- char suffix[32];
- string new_name;
- string::size_type at;
-
- tsr.progress = 0.0f;
- tsr.done = false;
-
- boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(a_region);
-
- total_frames = region->length() * region->n_channels();
- done = 0;
-
- /* the name doesn't need to be super-precise, but allow for 2 fractional
- digits just to disambiguate close but not identical stretches.
- */
-
- snprintf (suffix, sizeof (suffix), "@%d", (int) floor (tsr.time_fraction * 100.0f));
-
- /* create new sources */
-
- if (make_new_sources (region, nsrcs, suffix)) {
- goto out;
- }
-
- gain_buffer = new gain_t[bufsize];
- buffer = new Sample[bufsize];
-
- // soundtouch throws runtime_error on error
-
- try {
- for (uint32_t i = 0; i < nsrcs.size(); ++i) {
-
- boost::shared_ptr<AudioSource> asrc
- = boost::dynamic_pointer_cast<AudioSource>(nsrcs[i]);
-
- nframes_t pos = 0;
- nframes_t this_read = 0;
-
- st.clear();
-
- while (!tsr.cancel && pos < region->length()) {
- nframes_t this_time;
-
- this_time = min (bufsize, region->length() - pos);
-
- /* read from the master (original) sources for the region,
- not the ones currently in use, in case it's already been
- subject to timefx.
- */
-
- if ((this_read = region->master_read_at (buffer, buffer, gain_buffer, pos + region->position(), this_time)) != this_time) {
- error << string_compose (_("tempoize: error reading data from %1"), asrc->name()) << endmsg;
- goto out;
- }
-
- pos += this_read;
- done += this_read;
-
- tsr.progress = (float) done / total_frames;
-
- st.putSamples (buffer, this_read);
-
- while ((this_read = st.receiveSamples (buffer, bufsize)) > 0 && !tsr.cancel) {
- if (asrc->write (buffer, this_read) != this_read) {
- error << string_compose (_("error writing tempo-adjusted data to %1"), asrc->name()) << endmsg;
- goto out;
- }
- }
- }
-
- if (!tsr.cancel) {
- st.flush ();
- }
-
- while (!tsr.cancel && (this_read = st.receiveSamples (buffer, bufsize)) > 0) {
- if (asrc->write (buffer, this_read) != this_read) {
- error << string_compose (_("error writing tempo-adjusted data to %1"), asrc->name()) << endmsg;
- goto out;
- }
- }
- }
-
- } catch (runtime_error& err) {
- error << _("timefx code failure. please notify ardour-developers.") << endmsg;
- error << err.what() << endmsg;
- goto out;
- }
-
- new_name = region->name();
- at = new_name.find ('@');
-
- // remove any existing stretch indicator
-
- if (at != string::npos && at > 2) {
- new_name = new_name.substr (0, at - 1);
- }
-
- new_name += suffix;
-
- ret = finish (region, nsrcs, new_name);
-
- /* now reset ancestral data for each new region */
-
- for (vector<boost::shared_ptr<Region> >::iterator x = results.begin(); x != results.end(); ++x) {
- nframes64_t astart = (*x)->ancestral_start();
- nframes64_t alength = (*x)->ancestral_length();
- nframes_t start;
- nframes_t length;
-
- // note: tsr.fraction is a percentage of original length. 100 = no change,
- // 50 is half as long, 200 is twice as long, etc.
-
- float stretch = (*x)->stretch() * (tsr.time_fraction/100.0);
-
- start = (nframes_t) floor (astart + ((astart - (*x)->start()) / stretch));
- length = (nframes_t) floor (alength / stretch);
-
- (*x)->set_ancestral_data (start, length, stretch, (*x)->shift());
- }
-
- out:
-
- if (gain_buffer) {
- delete [] gain_buffer;
- }
-
- if (buffer) {
- delete [] buffer;
- }
-
- if (ret || tsr.cancel) {
- for (SourceList::iterator si = nsrcs.begin(); si != nsrcs.end(); ++si) {
- (*si)->mark_for_remove ();
- }
- }
-
- tsr.done = true;
-
- return ret;
-}