moving ecasound
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244
library/ecasound-2.7.2/ecatools/ecafixdc.cpp
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244
library/ecasound-2.7.2/ecatools/ecafixdc.cpp
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// ------------------------------------------------------------------------
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// ecatools-fixdc.cpp: A simple command-line tools for fixing DC-offset.
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// Copyright (C) 1999-2003,2005-2006 Kai Vehmanen
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//
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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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//
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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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//
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// ------------------------------------------------------------------------
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <iostream>
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#include <string>
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#include <vector>
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#include <cstdio>
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#include <cmath> /* fabs() */
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#include <signal.h>
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#include <stdlib.h>
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#include <kvutils/kvu_dbc.h>
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#include <kvutils/kvu_com_line.h>
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#include <kvutils/kvu_temporary_file_directory.h>
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#include <kvutils/kvu_numtostr.h>
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#include <kvutils/kvu_utils.h>
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#include <eca-control-interface.h>
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#include "ecicpp_helpers.h"
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using std::cerr;
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using std::cout;
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using std::endl;
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using std::string;
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/**
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* Function declarations
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*/
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int main(int argc, char *argv[]);
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static void ecafixdc_print_usage(void);
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static void ecafixdc_signal_handler(int signum);
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/**
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* Definitions and options
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*/
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#define ECAFIXDC_PHASE_ANALYSIS 0
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#define ECAFIXDC_PHASE_PROCESSING 1
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#define ECAFIXDC_PHASE_MAX 2
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static const string ecatools_fixdc_version = "20050316-30";
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static string ecatools_fixdc_tempfile;
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/**
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* Function definitions
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*/
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int main(int argc, char *argv[])
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{
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struct sigaction es_handler;
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es_handler.sa_handler = ecafixdc_signal_handler;
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sigemptyset(&es_handler.sa_mask);
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es_handler.sa_flags = 0;
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sigaction(SIGTERM, &es_handler, 0);
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sigaction(SIGINT, &es_handler, 0);
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sigaction(SIGQUIT, &es_handler, 0);
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sigaction(SIGABRT, &es_handler, 0);
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struct sigaction ign_handler;
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ign_handler.sa_handler = SIG_IGN;
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sigemptyset(&ign_handler.sa_mask);
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ign_handler.sa_flags = 0;
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/* ignore the following signals */
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sigaction(SIGPIPE, &ign_handler, 0);
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sigaction(SIGFPE, &ign_handler, 0);
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COMMAND_LINE cline = COMMAND_LINE (argc, argv);
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if (cline.size() < 2) {
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ecafixdc_print_usage();
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return(1);
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}
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std::string filename;
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std::string tempfile;
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std::vector<double> dcfix_values;
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int chcount = 0;
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ECA_CONTROL_INTERFACE eci;
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TEMPORARY_FILE_DIRECTORY tempfile_dir_rep;
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string tmpdir ("ecatools-");
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char* tmp_p = getenv("LOGNAME");
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if (tmp_p == NULL) tmp_p = getenv("USER");
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if (tmp_p != NULL) {
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tmpdir += string(tmp_p);
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tempfile_dir_rep.reserve_directory(tmpdir);
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}
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if (tempfile_dir_rep.is_valid() != true) {
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cerr << "---\nError while creating temporary directory \"" << tmpdir << "\". Exiting...\n";
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return(0);
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}
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cline.begin();
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cline.next(); // skip the program name
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while(cline.end() == false) {
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filename = cline.current();
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ecatools_fixdc_tempfile = tempfile_dir_rep.create_filename("fixdc-tmp", ".wav");
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for(int m = 0;m < ECAFIXDC_PHASE_MAX; m++) {
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eci.command("cs-add default");
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eci.command("c-add default");
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if (m == ECAFIXDC_PHASE_ANALYSIS) {
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cout << "Calculating DC-offset for file \"" << filename << "\".\n";
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string format;
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if (ecicpp_add_file_input(&eci, filename, &format) < 0) break;
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cout << "Using audio format -f:" << format << "\n";
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chcount = ecicpp_format_channels(format);
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dcfix_values.resize(chcount);
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cout << "Setting up " << chcount << " separate channels for analysis." << endl;
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cout << "Opening temp file \"" << ecatools_fixdc_tempfile << "\".\n";
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if (ecicpp_add_output(&eci, ecatools_fixdc_tempfile, format) < 0) break;
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eci.command("cop-add -ezf");
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eci.command("cop-list");
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if (eci.last_string_list().size() != 1) {
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cerr << eci.last_error() << endl;
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cerr << "---\nError while adding DC-Find (-ezf) chainop. Exiting...\n";
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break;
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}
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}
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else {
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// FIXME: list all channels (remember to fix audiofx_misc.cpp dcfix)
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cout << "Fixing DC-offset \"" << filename << ".\n";
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string format;
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if (ecicpp_add_file_input(&eci, ecatools_fixdc_tempfile, &format) < 0) break;
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cout << "Using audio format -f:" << format << "\n";
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if (ecicpp_add_output(&eci, filename, format) < 0) break;
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string dcfixstr;
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for(int n = 0; n < chcount; n++) {
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dcfixstr += kvu_numtostr(dcfix_values[n]) + ",";
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}
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eci.command("cop-add -ezx:" + kvu_numtostr(chcount) + "," + dcfixstr);
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eci.command("cop-list");
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if (eci.last_string_list().size() != 1) {
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cerr << eci.last_error() << endl;
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cerr << "---\nError while adding DC-Fix (-ezx) chainop. Exiting...\n";
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break;
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}
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}
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cout << "Starting processing...\n";
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if (ecicpp_connect_chainsetup(&eci, "default") < 0) {
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break;
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}
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else {
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// blocks until processing is done
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eci.command("run");
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}
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cout << "Processing finished.\n";
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if (m == ECAFIXDC_PHASE_ANALYSIS) {
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DBC_CHECK(static_cast<int>(dcfix_values.size()) >= chcount);
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double maxoffset = 0.0f;
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for(int nm = 0; nm < chcount; nm++) {
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eci.command("cop-select 1");
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eci.command("copp-select " + kvu_numtostr(nm + 1));
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eci.command("copp-get");
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dcfix_values[nm] = eci.last_float();
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if (fabs(dcfix_values[nm]) > maxoffset) maxoffset = fabs(dcfix_values[nm]);
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cout << "DC-offset for channel " << nm + 1 << " is " <<
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kvu_numtostr(dcfix_values[nm], 4) << "." << endl;
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}
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if (maxoffset <= 0.0f) {
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cout << "File \"" << filename << "\" has no DC-offset. Skipping.";
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eci.command("cs-disconnect");
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eci.command("cs-select default");
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eci.command("cs-remove");
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break;
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}
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}
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eci.command("cs-disconnect");
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eci.command("cs-select default");
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eci.command("cs-remove");
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}
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remove(ecatools_fixdc_tempfile.c_str());
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cline.next();
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}
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return(0);
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}
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static void ecafixdc_print_usage(void)
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{
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std::cerr << "****************************************************************************\n";
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std::cerr << "* ecafixdc, v" << ecatools_fixdc_version << " (" << VERSION << ")\n";
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std::cerr << "* (C) 1997-2004 Kai Vehmanen, released under the GPL license\n";
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std::cerr << "****************************************************************************\n";
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std::cerr << "\nUSAGE: ecafixdc file1 [ file2, ... fileN ]\n\n";
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}
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static void ecafixdc_signal_handler(int signum)
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{
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std::cerr << "Unexpected interrupt... cleaning up.\n";
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remove(ecatools_fixdc_tempfile.c_str());
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exit(1);
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}
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