mirror of
https://github.com/Ardour/ardour.git
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336 lines
6.6 KiB
C++
336 lines
6.6 KiB
C++
/*
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Copyright (C) 2000-2003 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> /* for sprintf */
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#include <cmath>
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#include <cctype>
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#include <string>
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#include <cerrno>
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#include <iostream>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <unistd.h>
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#ifdef HAVE_WORDEXP
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#include <wordexp.h>
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#endif
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#include <pbd/error.h>
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#include <pbd/xml++.h>
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#include <ardour/utils.h>
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#include "i18n.h"
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using namespace ARDOUR;
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using namespace std;
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using namespace PBD;
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void
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elapsed_time_to_str (char *buf, uint32_t seconds)
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{
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uint32_t days;
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uint32_t hours;
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uint32_t minutes;
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uint32_t s;
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s = seconds;
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days = s / (3600 * 24);
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s -= (days * 3600 * 24);
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hours = s / 3600;
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s -= (hours * 3600);
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minutes = s / 60;
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s -= minutes * 60;
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if (days) {
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snprintf (buf, sizeof (buf), "%" PRIu32 " day%s %" PRIu32 " hour%s",
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days,
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days > 1 ? "s" : "",
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hours,
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hours > 1 ? "s" : "");
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} else if (hours) {
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snprintf (buf, sizeof (buf), "%" PRIu32 " hour%s %" PRIu32 " minute%s",
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hours,
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hours > 1 ? "s" : "",
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minutes,
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minutes > 1 ? "s" : "");
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} else if (minutes) {
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snprintf (buf, sizeof (buf), "%" PRIu32 " minute%s",
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minutes,
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minutes > 1 ? "s" : "");
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} else if (s) {
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snprintf (buf, sizeof (buf), "%" PRIu32 " second%s",
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seconds,
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seconds > 1 ? "s" : "");
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} else {
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snprintf (buf, sizeof (buf), "no time");
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}
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}
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string
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legalize_for_path (string str)
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{
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string::size_type pos;
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string legal_chars = "abcdefghijklmnopqrtsuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_+=: ";
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string legal;
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legal = str;
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pos = 0;
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while ((pos = legal.find_first_not_of (legal_chars, pos)) != string::npos) {
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legal.replace (pos, 1, "_");
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pos += 1;
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}
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return legal;
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}
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ostream&
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operator<< (ostream& o, const BBT_Time& bbt)
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{
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o << bbt.bars << '|' << bbt.beats << '|' << bbt.ticks;
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return o;
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}
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XMLNode *
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find_named_node (const XMLNode& node, string name)
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{
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XMLNodeList nlist;
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XMLNodeConstIterator niter;
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XMLNode* child;
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nlist = node.children();
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for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
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child = *niter;
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if (child->name() == name) {
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return child;
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}
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}
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return 0;
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}
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int
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cmp_nocase (const string& s, const string& s2)
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{
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string::const_iterator p = s.begin();
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string::const_iterator p2 = s2.begin();
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while (p != s.end() && p2 != s2.end()) {
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if (toupper(*p) != toupper(*p2)) {
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return (toupper(*p) < toupper(*p2)) ? -1 : 1;
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}
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++p;
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++p2;
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}
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return (s2.size() == s.size()) ? 0 : (s.size() < s2.size()) ? -1 : 1;
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}
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int
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tokenize_fullpath (string fullpath, string& path, string& name)
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{
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string::size_type m = fullpath.find_last_of("/");
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if (m == string::npos) {
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path = fullpath;
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name = fullpath;
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return 1;
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}
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// does it look like just a directory?
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if (m == fullpath.length()-1) {
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return -1;
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}
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path = fullpath.substr(0, m+1);
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string::size_type n = fullpath.find(".ardour", m);
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// no .ardour?
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if (n == string::npos) {
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return -1;
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}
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name = fullpath.substr(m+1, n - m - 1);
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return 1;
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}
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int
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touch_file (string path)
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{
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int fd = open (path.c_str(), O_RDWR|O_CREAT, 0660);
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if (fd >= 0) {
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close (fd);
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return 0;
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}
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return 1;
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}
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string
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placement_as_string (Placement p)
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{
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switch (p) {
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case PreFader:
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return _("pre");
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default: /* to get g++ to realize we have all the cases covered */
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case PostFader:
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return _("post");
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}
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}
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string
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region_name_from_path (string path)
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{
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string::size_type pos;
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/* remove filename suffixes etc. */
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if ((pos = path.find_last_of ('.')) != string::npos) {
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path = path.substr (0, pos);
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}
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/* remove any "?R", "?L" or "?[a-z]" channel identifier */
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string::size_type len = path.length();
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if (len > 3 && (path[len-2] == '%' || path[len-2] == '?') &&
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(path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
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path = path.substr (0, path.length() - 2);
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}
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return path;
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}
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string
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path_expand (string path)
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{
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#ifdef HAVE_WORDEXP
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/* Handle tilde and environment variable expansion in session path */
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string ret = path;
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wordexp_t expansion;
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switch (wordexp (path.c_str(), &expansion, WRDE_NOCMD|WRDE_UNDEF)) {
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case 0:
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break;
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default:
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error << string_compose (_("illegal or badly-formed string used for path (%1)"), path) << endmsg;
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goto out;
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}
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if (expansion.we_wordc > 1) {
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error << string_compose (_("path (%1) is ambiguous"), path) << endmsg;
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goto out;
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}
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ret = expansion.we_wordv[0];
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out:
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wordfree (&expansion);
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return ret;
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#else
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return path;
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#endif
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}
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#if defined(HAVE_COREAUDIO) || defined(HAVE_AUDIOUNITS)
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string
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CFStringRefToStdString(CFStringRef stringRef)
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{
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CFIndex size =
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CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
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kCFStringEncodingUTF8);
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char *buf = new char[size];
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std::string result;
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if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingUTF8)) {
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result = buf;
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}
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delete [] buf;
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return result;
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}
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#endif // HAVE_COREAUDIO
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void
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compute_equal_power_fades (jack_nframes_t nframes, float* in, float* out)
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{
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double step;
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step = 1.0/nframes;
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in[0] = 0.0f;
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for (jack_nframes_t i = 1; i < nframes - 1; ++i) {
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in[i] = in[i-1] + step;
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}
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in[nframes-1] = 1.0;
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const float pan_law_attenuation = -3.0f;
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const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
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for (unsigned long n = 0; n < nframes; ++n) {
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float inVal = in[n];
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float outVal = 1 - inVal;
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out[n] = outVal * (scale * outVal + 1.0f - scale);
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in[n] = inVal * (scale * inVal + 1.0f - scale);
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}
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}
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SlaveSource
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string_to_slave_source (string str)
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{
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if (str == _("Internal")) {
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return None;
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}
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if (str == _("MTC")) {
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return MTC;
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}
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if (str == _("JACK")) {
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return JACK;
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}
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fatal << string_compose (_("programming error: unknown slave source string \"%1\""), str) << endmsg;
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/*NOTREACHED*/
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return None;
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}
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const char*
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slave_source_to_string (SlaveSource src)
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{
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switch (src) {
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case JACK:
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return _("JACK");
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case MTC:
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return _("MTC");
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default:
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case None:
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return _("Internal");
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}
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}
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