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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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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, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include <getopt.h> |
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#include <signal.h> |
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#include "Sampler.h" |
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#include "drivers/midi/MidiInputDeviceFactory.h" |
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#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "network/lscpserver.h" |
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#include "common/stacktrace.h" |
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#include "common/Features.h" |
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using namespace LinuxSampler; |
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Sampler* pSampler = NULL; |
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LSCPServer* pLSCPServer = NULL; |
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pthread_t main_thread; |
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void parse_options(int argc, char **argv); |
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void signal_handler(int signal); |
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void kill_app(); |
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int main(int argc, char **argv) { |
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// initialize the stack trace mechanism with our binary file |
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StackTraceInit(argv[0], -1); |
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main_thread = pthread_self(); |
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// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>) |
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signal(SIGINT, signal_handler); |
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// register signal handler for all unusual signals |
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// (we will print the stack trace and exit) |
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struct sigaction sact; |
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sigemptyset(&sact.sa_mask); |
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sact.sa_flags = 0; |
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sact.sa_handler = signal_handler; |
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sigaction(SIGSEGV, &sact, NULL); |
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sigaction(SIGBUS, &sact, NULL); |
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sigaction(SIGILL, &sact, NULL); |
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sigaction(SIGFPE, &sact, NULL); |
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sigaction(SIGUSR1, &sact, NULL); |
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sigaction(SIGUSR2, &sact, NULL); |
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// parse and assign command line options |
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//parse_options(argc, argv); |
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dmsg(1,("LinuxSampler %s\n", VERSION)); |
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dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n")); |
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// detect and print system / CPU specific features |
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String sFeatures; |
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Features::detect(); |
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#if ARCH_X86 |
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if (Features::supportsMMX()) sFeatures += " MMX"; |
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if (Features::supportsSSE()) sFeatures += " SSE"; |
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#endif // ARCH_X86 |
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if (!sFeatures.size()) sFeatures = " None"; |
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dmsg(1,("Detected features:%s\n",sFeatures.c_str())); |
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// create LinuxSampler instance |
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dmsg(1,("Creating Sampler...")); |
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pSampler = new Sampler; |
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dmsg(1,("OK\n")); |
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dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str())); |
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dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str())); |
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// start LSCP network server |
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dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT)); |
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pLSCPServer = new LSCPServer(pSampler); |
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pLSCPServer->StartThread(); |
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pLSCPServer->WaitUntilInitialized(); |
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dmsg(1,("OK\n")); |
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printf("LinuxSampler initialization completed.\n"); |
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while(true) { |
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/*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r", |
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pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax, |
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pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams()); |
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fflush(stdout);*/ |
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usleep(500000); |
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} |
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return EXIT_SUCCESS; |
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} |
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void signal_handler(int iSignal) { |
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switch (iSignal) { |
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case SIGINT: { |
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if (pthread_equal(pthread_self(), main_thread)) { |
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if (pLSCPServer) { |
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pLSCPServer->StopThread(); |
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delete pLSCPServer; |
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} |
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if (pSampler) delete pSampler; |
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printf("LinuxSampler stopped due to SIGINT.\n"); |
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exit(EXIT_SUCCESS); |
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} |
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return; |
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} |
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case SIGSEGV: |
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std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush; |
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break; |
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case SIGBUS: |
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std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush; |
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break; |
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case SIGILL: |
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std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush; |
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break; |
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case SIGFPE: |
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std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush; |
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break; |
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case SIGUSR1: |
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std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush; |
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break; |
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case SIGUSR2: |
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std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush; |
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break; |
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default: { // this should never happen, as we register for the signals we want |
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std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush; |
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break; |
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} |
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} |
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signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions |
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std::cerr << "Showing stack trace...\n" << std::flush; |
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StackTrace(); |
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sleep(2); |
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std::cerr << "Killing LinuxSampler...\n" << std::flush; |
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kill_app(); // Use abort() if we want to generate a core dump. |
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} |
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void kill_app() { |
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kill(main_thread, SIGKILL); |
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} |
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/*void parse_options(int argc, char **argv) { |
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int res; |
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int option_index = 0; |
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static struct option long_options[] = |
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{ |
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{"numfragments",1,0,0}, |
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{"fragmentsize",1,0,0}, |
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{"volume",1,0,0}, |
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{"dls",0,0,0}, |
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{"gig",0,0,0}, |
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{"instrument",1,0,0}, |
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{"inputclient",1,0,0}, |
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{"alsaout",1,0,0}, |
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{"jackout",1,0,0}, |
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{"samplerate",1,0,0}, |
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{"server",0,0,0}, |
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{"help",0,0,0}, |
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{0,0,0,0} |
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}; |
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while (true) { |
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res = getopt_long_only(argc, argv, "", long_options, &option_index); |
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if(res == -1) break; |
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if (res == 0) { |
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switch(option_index) { |
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case 0: // --numfragments |
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num_fragments = atoi(optarg); |
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break; |
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case 1: // --fragmentsize |
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fragmentsize = atoi(optarg); |
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break; |
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case 2: // --volume |
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volume = atof(optarg); |
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break; |
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case 3: // --dls |
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patch_format = patch_format_dls; |
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break; |
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case 4: // --gig |
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patch_format = patch_format_gig; |
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break; |
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case 5: // --instrument |
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instrument_index = atoi(optarg); |
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break; |
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case 6: // --inputclient |
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input_client = optarg; |
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break; |
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case 7: // --alsaout |
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alsaout = optarg; |
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use_jack = false; // If this option is specified do not connect to jack |
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break; |
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case 8: { // --jackout |
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try { |
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String arg(optarg); |
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// remove outer apostrophes |
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arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1)); |
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// split in two arguments |
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jack_playback[0] = arg.substr(0, arg.find("\' ")); |
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jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2)); |
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// remove inner apostrophes |
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jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\'')); |
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jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\'')); |
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// this is the default but set it up anyway in case alsa_card was also used. |
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use_jack = true; |
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} |
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catch (...) { |
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fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg); |
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exit(EXIT_FAILURE); |
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} |
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break; |
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} |
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case 9: // --samplerate |
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samplerate = atoi(optarg); |
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break; |
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case 10: // --server |
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run_server = true; |
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break; |
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case 11: // --help |
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printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n"); |
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printf("--gig loads a Gigasampler instrument\n"); |
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printf("--dls loads a DLS instrument\n"); |
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printf("--instrument index of the instrument in the instrument file if it\n"); |
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printf(" contains more than one (default: 0)\n"); |
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printf("--numfragments sets the number of audio fragments\n"); |
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printf("--fragmentsize sets the fragment size\n"); |
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printf("--volume sets global volume gain factor (a value > 1.0 means\n"); |
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printf(" amplification, a value < 1.0 means attenuation,\n"); |
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printf(" default: 0.25)\n"); |
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printf("--inputclient connects to an Alsa sequencer input client on startup\n"); |
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printf(" (e.g. 64:0 to connect to a client with ID 64 and port 0)\n"); |
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printf("--alsaout connects to the given Alsa sound device on startup\n"); |
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printf(" (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n"); |
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printf("--jackout connects to the given Jack playback ports on startup\n"); |
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printf(" (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n"); |
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printf(" in case of stereo output)\n"); |
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printf("--samplerate sets sample rate if supported by audio output system\n"); |
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printf(" (e.g. 44100)\n"); |
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printf("--server launch network server for remote control\n"); |
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exit(EXIT_SUCCESS); |
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break; |
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} |
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} |
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} |
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}*/ |