381 lines
9.2 KiB
C++
381 lines
9.2 KiB
C++
/*
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Copyright (C) 2000 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <cstdio>
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#include <cstdlib>
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#include <string>
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#include <climits>
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#include <cerrno>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <sndfile.h>
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#include <samplerate.h>
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#include <pbd/basename.h>
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#include <ardour/ardour.h>
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#include <ardour/session.h>
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#include <ardour/diskstream.h>
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#include <ardour/filesource.h>
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#include <ardour/sndfile_helpers.h>
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#include <ardour/audioregion.h>
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#include "i18n.h"
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using namespace ARDOUR;
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#define BLOCKSIZE 2048U
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int
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Session::import_audiofile (import_status& status)
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{
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SNDFILE *in;
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FileSource **newfiles = 0;
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ARDOUR::AudioRegion::SourceList sources;
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SF_INFO info;
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float *data = 0;
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Sample **channel_data = 0;
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long nfiles = 0;
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long n;
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string basepath;
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string sounds_dir;
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jack_nframes_t so_far;
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char buf[PATH_MAX+1];
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int ret = -1;
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vector<AudioRegion *> new_regions;
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vector<string> new_paths;
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struct tm* now;
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string tmp_convert_file;
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if ((in = sf_open (status.pathname.c_str(), SFM_READ, &info)) == 0) {
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error << compose(_("Import: cannot open input sound file \"%1\""), status.pathname) << endmsg;
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return -1;
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} else {
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if ((uint32_t) info.samplerate != frame_rate()) {
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sf_close(in);
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status.doing_what = _("resampling audio");
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// resample to session frame_rate
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if (sample_rate_convert(status, status.pathname, tmp_convert_file)) {
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if ((in = sf_open (tmp_convert_file.c_str(), SFM_READ, &info)) == 0) {
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error << compose(_("Import: cannot open converted sound file \"%1\""), tmp_convert_file) << endmsg;
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return -1;
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}
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} else if (!status.cancel){
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// error
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error << compose(_("Import: error while resampling sound file \"%1\""), status.pathname) << endmsg;
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return -1;
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} else {
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// canceled
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goto out;
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}
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}
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}
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newfiles = new FileSource *[info.channels];
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for (n = 0; n < info.channels; ++n) {
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newfiles[n] = 0;
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}
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sounds_dir = discover_best_sound_dir ();
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basepath = PBD::basename_nosuffix (status.pathname);
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for (n = 0; n < info.channels; ++n) {
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bool goodfile = false;
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do {
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if (info.channels == 2) {
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if (n == 0) {
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snprintf (buf, sizeof(buf), "%s%s-L.wav", sounds_dir.c_str(), basepath.c_str());
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} else {
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snprintf (buf, sizeof(buf), "%s%s-R.wav", sounds_dir.c_str(), basepath.c_str());
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}
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} else if (info.channels > 1) {
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snprintf (buf, sizeof(buf), "%s%s-c%lu.wav", sounds_dir.c_str(), basepath.c_str(), n+1);
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} else {
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snprintf (buf, sizeof(buf), "%s%s.wav", sounds_dir.c_str(), basepath.c_str());
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}
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if (::access (buf, F_OK) == 0) {
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/* if the file already exists, we must come up with
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* a new name for it. for now we just keep appending
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* _ to basepath
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*/
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basepath += "_";
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} else {
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goodfile = true;
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}
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} while ( !goodfile);
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try {
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newfiles[n] = new FileSource (buf, frame_rate());
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}
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catch (failed_constructor& err) {
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error << compose(_("Session::import_audiofile: cannot open new file source for channel %1"), n+1) << endmsg;
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goto out;
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}
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new_paths.push_back (buf);
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nfiles++;
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}
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data = new float[BLOCKSIZE * info.channels];
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channel_data = new Sample * [ info.channels ];
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for (n = 0; n < info.channels; ++n) {
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channel_data[n] = new Sample[BLOCKSIZE];
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}
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so_far = 0;
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status.doing_what = _("converting audio");
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status.progress = 0.0;
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while (!status.cancel) {
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long nread;
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long x;
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long chn;
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if ((nread = sf_readf_float (in, data, BLOCKSIZE)) == 0) {
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break;
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}
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/* de-interleave */
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for (chn = 0; chn < info.channels; ++chn) {
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for (x = chn, n = 0; n < nread; x += info.channels, ++n) {
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channel_data[chn][n] = (Sample) data[x];
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}
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}
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/* flush to disk */
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for (chn = 0; chn < info.channels; ++chn) {
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newfiles[chn]->write (channel_data[chn], nread);
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}
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so_far += nread;
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status.progress = so_far / (float) (info.frames * info.channels);
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}
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if (status.multichan) {
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status.doing_what = _("building region");
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} else {
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status.doing_what = _("building regions");
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}
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status.freeze = true;
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time_t xnow;
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time (&xnow);
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now = localtime (&xnow);
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if (status.cancel) {
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goto out;
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}
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if (status.multichan) {
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/* all sources are used in a single multichannel region */
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for (n = 0; n < nfiles && !status.cancel; ++n) {
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/* flush the final length to the header */
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newfiles[n]->update_header(0, *now, xnow);
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sources.push_back(newfiles[n]);
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}
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AudioRegion *r = new AudioRegion (sources, 0, newfiles[0]->length(), region_name_from_path (PBD::basename(basepath)),
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0, AudioRegion::Flag (AudioRegion::DefaultFlags | AudioRegion::WholeFile));
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new_regions.push_back (r);
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} else {
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for (n = 0; n < nfiles && !status.cancel; ++n) {
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/* flush the final length to the header */
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newfiles[n]->update_header(0, *now, xnow);
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/* The sources had zero-length when created, which means that the Session
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did not bother to create whole-file AudioRegions for them. Do it now.
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*/
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AudioRegion *r = new AudioRegion (*newfiles[n], 0, newfiles[n]->length(), region_name_from_path (PBD::basename (newfiles[n]->name())),
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0, AudioRegion::Flag (AudioRegion::DefaultFlags | AudioRegion::WholeFile | AudioRegion::Import));
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new_regions.push_back (r);
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}
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}
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/* save state so that we don't lose these new Sources */
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if (!status.cancel) {
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save_state (_name);
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}
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ret = 0;
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out:
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if (data) {
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delete [] data;
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}
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if (channel_data) {
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for (n = 0; n < info.channels; ++n) {
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delete [] channel_data[n];
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}
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delete [] channel_data;
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}
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if (status.cancel) {
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for (vector<AudioRegion *>::iterator i = new_regions.begin(); i != new_regions.end(); ++i) {
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delete *i;
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}
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for (vector<string>::iterator i = new_paths.begin(); i != new_paths.end(); ++i) {
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unlink ((*i).c_str());
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}
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}
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if (newfiles) {
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delete [] newfiles;
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}
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if (tmp_convert_file.length()) {
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unlink(tmp_convert_file.c_str());
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}
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sf_close (in);
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status.done = true;
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return ret;
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}
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string
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Session::build_tmp_convert_name(string infile)
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{
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string tmp_name(_path + "/." + PBD::basename (infile.c_str()) + "XXXXXX");
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char* tmp = new char[tmp_name.length() + 1];
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tmp_name.copy(tmp, string::npos);
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tmp[tmp_name.length()] = 0;
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mkstemp(tmp);
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string outfile = tmp;
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delete [] tmp;
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return outfile;
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}
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bool
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Session::sample_rate_convert (import_status& status, string infile, string& outfile)
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{
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float input [BLOCKSIZE] ;
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float output [BLOCKSIZE] ;
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SF_INFO sf_info;
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SRC_STATE* src_state ;
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SRC_DATA src_data ;
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int err ;
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sf_count_t output_count = 0 ;
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sf_count_t input_count = 0;
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SNDFILE* in = sf_open(infile.c_str(), SFM_READ, &sf_info);
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sf_count_t total_input_frames = sf_info.frames;
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outfile = build_tmp_convert_name(infile);
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SNDFILE* out = sf_open(outfile.c_str(), SFM_RDWR, &sf_info);
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if(!out) {
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error << compose(_("Import: could not open temp file: %1"), outfile) << endmsg;
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return false;
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}
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sf_seek (in, 0, SEEK_SET) ;
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sf_seek (out, 0, SEEK_SET) ;
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/* Initialize the sample rate converter. */
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if ((src_state = src_new (SRC_SINC_BEST_QUALITY, sf_info.channels, &err)) == 0) {
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error << compose(_("Import: src_new() failed : %1"), src_strerror (err)) << endmsg ;
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return false ;
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}
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src_data.end_of_input = 0 ; /* Set this later. */
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/* Start with zero to force load in while loop. */
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src_data.input_frames = 0 ;
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src_data.data_in = input ;
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src_data.src_ratio = (1.0 * frame_rate()) / sf_info.samplerate ;
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src_data.data_out = output ;
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src_data.output_frames = BLOCKSIZE / sf_info.channels ;
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while (!status.cancel) {
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/* If the input buffer is empty, refill it. */
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if (src_data.input_frames == 0) {
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src_data.input_frames = sf_readf_float (in, input, BLOCKSIZE / sf_info.channels) ;
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src_data.data_in = input ;
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/* The last read will not be a full buffer, so snd_of_input. */
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if (src_data.input_frames < (int)BLOCKSIZE / sf_info.channels) {
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src_data.end_of_input = SF_TRUE ;
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}
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}
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if ((err = src_process (src_state, &src_data))) {
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error << compose(_("Import: %1"), src_strerror (err)) << endmsg ;
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return false ;
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}
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/* Terminate if at end */
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if (src_data.end_of_input && src_data.output_frames_gen == 0) {
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break ;
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}
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/* Write output. */
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sf_writef_float (out, output, src_data.output_frames_gen) ;
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output_count += src_data.output_frames_gen ;
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input_count += src_data.input_frames_used;
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src_data.data_in += src_data.input_frames_used * sf_info.channels ;
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src_data.input_frames -= src_data.input_frames_used ;
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status.progress = (float) input_count / total_input_frames;
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}
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src_state = src_delete (src_state) ;
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sf_close(in);
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sf_close(out);
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status.done = true;
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if (status.cancel) {
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return false;
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} else {
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return true ;
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}
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}
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