/*
- Copyright (C) 2004 Paul Davis
+ Copyright (C) 2004 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#include <algorithm>
-#include <pbd/basename.h>
-
-#include <ardour/types.h>
-#include <ardour/reverse.h>
-#include <ardour/audiofilesource.h>
-#include <ardour/session.h>
-#include <ardour/audioregion.h>
-
-#include "i18n.h"
+#include "ardour/audioregion.h"
+#include "ardour/audiosource.h"
+#include "ardour/reverse.h"
+#include "ardour/types.h"
using namespace std;
using namespace ARDOUR;
+namespace ARDOUR { class Progress; class Session; }
+
Reverse::Reverse (Session& s)
- : AudioFilter (s)
+ : Filter (s)
{
}
}
int
-Reverse::run (AudioRegion& region)
+Reverse::run (boost::shared_ptr<Region> r, Progress*)
{
- AudioRegion::SourceList nsrcs;
- AudioRegion::SourceList::iterator si;
- const jack_nframes_t blocksize = 256 * 1048;
- Sample buf[blocksize];
- jack_nframes_t fpos;
- jack_nframes_t fend;
- jack_nframes_t fstart;
- jack_nframes_t to_read;
+ SourceList nsrcs;
+ SourceList::iterator si;
+ samplecnt_t blocksize = 256 * 1024;
+ Sample* buf = 0;
+ samplepos_t fpos;
+ samplepos_t fstart;
+ samplecnt_t to_read;
int ret = -1;
+ boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(r);
+ if (!region)
+ return ret;
+
/* create new sources */
- if (make_new_sources (region, nsrcs)) {
+ if (make_new_sources (region, nsrcs, "", false)) {
goto out;
}
- fend = region.start() + region.length();
- fstart = region.start();
+ fstart = region->start();
- if (blocksize < fend) {
- fpos =max(fstart, fend - blocksize);
- } else {
- fpos = fstart;
+ if (blocksize > region->length()) {
+ blocksize = region->length();
}
- to_read = min (region.length(), blocksize);
+ fpos = max (fstart, (fstart + region->length() - blocksize));
+
+ buf = new Sample[blocksize];
+ to_read = blocksize;
/* now read it backwards */
- while (1) {
+ while (to_read) {
uint32_t n;
- for (n = 0, si = nsrcs.begin(); n < region.n_channels(); ++n, ++si) {
+ for (n = 0, si = nsrcs.begin(); n < region->n_channels(); ++n, ++si) {
+
+ /* read it in directly from the source */
- /* read it in */
-
- if (region.source (n).read (buf, fpos, to_read) != to_read) {
+ if (region->audio_source (n)->read (buf, fpos, to_read) != to_read) {
goto out;
}
-
+
/* swap memory order */
-
- for (jack_nframes_t i = 0; i < to_read/2; ++i) {
+
+ for (samplecnt_t i = 0; i < to_read/2; ++i) {
swap (buf[i],buf[to_read-1-i]);
}
-
+
/* write it out */
- if ((*si)->write (buf, to_read) != to_read) {
+ boost::shared_ptr<AudioSource> asrc(boost::dynamic_pointer_cast<AudioSource>(*si));
+
+ if (asrc && asrc->write (buf, to_read) != to_read) {
goto out;
}
}
- if (fpos == fstart) {
- break;
- } else if (fpos > fstart + to_read) {
+ if (fpos > fstart + blocksize) {
fpos -= to_read;
- to_read = min (fstart - fpos, blocksize);
+ to_read = blocksize;
} else {
- to_read = fpos-fstart;
+ to_read = fpos - fstart;
fpos = fstart;
}
};
out:
+ delete [] buf;
+
if (ret) {
for (si = nsrcs.begin(); si != nsrcs.end(); ++si) {
- (*si)->mark_for_remove ();
- delete *si;
+ boost::shared_ptr<AudioSource> asrc(boost::dynamic_pointer_cast<AudioSource>(*si));
+ asrc->mark_for_remove ();
}
}
-
+
return ret;
}