trunk/src/linuxsampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *                                                                         *
 *   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  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include <getopt.h>
#include <signal.h>

#include "Sampler.h"
#include "network/lscpserver.h"

#if 0
#define AUDIO_CHANNELS          2     // stereo
#define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2
#define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames
#define AUDIO_SAMPLERATE        44100 // Hz
#endif

using namespace LinuxSampler;

/*enum patch_format_t {
    patch_format_unknown,
    patch_format_gig,
    patch_format_dls
} patch_format = patch_format_unknown;*/

Sampler*     pSampler         = NULL;
LSCPServer*  pLSCPServer      = NULL;
pthread_t    signalhandlerthread;
/*AudioThread* pEngine          = NULL;
uint         instrument_index = 0;
double       volume           = 0.25;
int          num_fragments    = AUDIO_FRAGMENTS;
int          fragmentsize     = AUDIO_FRAGMENTSIZE;
uint         samplerate       = AUDIO_SAMPLERATE;
String       input_client;
String       alsaout          = "0,0"; // default card
String       jack_playback[2] = { "", "" };
bool         use_jack         = true;
bool         run_server       = false;*/


void parse_options(int argc, char **argv);
void signal_handler(int signal);

int main(int argc, char **argv) {

    // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
    signalhandlerthread = pthread_self();
    signal(SIGINT, signal_handler);

    // parse and assign command line options
    //parse_options(argc, argv);

    /*if (patch_format != patch_format_gig) {
        printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");
        printf("Use 'linuxsampler --help' to see all available options.\n");
        return EXIT_FAILURE;
    }*/

    // create LinuxSampler instance
    pSampler = new Sampler;

    // create an audio output device
   /* bool no_jack = true;
#if HAVE_JACK
    if (use_jack) {
        dmsg(1,("Creating audio output device (Jack)..."));
        try {
            pSampler->CreateAudioOutputDevice(audio_output_type_jack);
            no_jack = false;
        }
        catch (AudioOutputException aoe) {
            aoe.PrintMessage();
            dmsg(1,("Trying to create Alsa output device instead.\n"));
        }
    }
#endif // HAVE_JACK
    if (no_jack) {
        dmsg(1,("Creating audio output device (Alsa)..."));
        try {
            pSampler->CreateAudioOutputDevice(audio_output_type_alsa);
        }
        catch (AudioOutputException aoe) {
            aoe.PrintMessage();
            dmsg(1,("Trying to create Alsa output device instead.\n"));
            return EXIT_FAILURE;
        }
    }
    dmsg(1,("OK\n"));*/

    // start LSCP network server
    dmsg(1,("Starting network server..."));
    pLSCPServer = new LSCPServer(pSampler);
    pLSCPServer->StartThread();
    dmsg(1,("OK\n"));

    printf("LinuxSampler initialization completed.\n");

    while(true)  {
      /*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
            pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
            pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
      fflush(stdout);*/
      usleep(500000);
    }

    return EXIT_SUCCESS;
}

void signal_handler(int signal) {
    if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {
        if (pLSCPServer) {
            pLSCPServer->StopThread();
            delete pLSCPServer;
        }
        if (pSampler) delete pSampler;
        printf("LinuxSampler stopped due to SIGINT\n");
        exit(EXIT_SUCCESS);
    }
}

/*void parse_options(int argc, char **argv) {
    int res;
    int option_index = 0;
    static struct option long_options[] =
        {
            {"numfragments",1,0,0},
            {"fragmentsize",1,0,0},
            {"volume",1,0,0},
            {"dls",0,0,0},
            {"gig",0,0,0},
            {"instrument",1,0,0},
            {"inputclient",1,0,0},
            {"alsaout",1,0,0},
            {"jackout",1,0,0},
            {"samplerate",1,0,0},
            {"server",0,0,0},
            {"help",0,0,0},
            {0,0,0,0}
        };

    while (true) {
        res = getopt_long_only(argc, argv, "", long_options, &option_index);
        if(res == -1) break;
        if (res == 0) {
            switch(option_index) {
                case 0: // --numfragments
                    num_fragments = atoi(optarg);
                    break;
                case 1: // --fragmentsize
                    fragmentsize = atoi(optarg);
                    break;
                case 2: // --volume
                    volume = atof(optarg);
                    break;
                case 3: // --dls
                    patch_format = patch_format_dls;
                    break;
                case 4: // --gig
                    patch_format = patch_format_gig;
                    break;
                case 5: // --instrument
                    instrument_index = atoi(optarg);
                    break;
                case 6: // --inputclient
                    input_client = optarg;
                    break;
                case 7: // --alsaout
                    alsaout = optarg;
                    use_jack = false; // If this option is specified do not connect to jack
                    break;
                case 8: { // --jackout
                    try {
                        String arg(optarg);
                        // remove outer apostrophes
                        arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1));
                        // split in two arguments
                        jack_playback[0] = arg.substr(0, arg.find("\' "));
                        jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2));
                        // remove inner apostrophes
                        jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\''));
                        jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\''));
                        // this is the default but set it up anyway in case alsa_card was also used.
                        use_jack = true;
                    }
                    catch (...) {
                        fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg);
                        exit(EXIT_FAILURE);
                    }
                    break;
                }
                case 9: // --samplerate
                    samplerate = atoi(optarg);
                    break;
                case 10: // --server
                    run_server = true;
                    break;
                case 11: // --help
                    printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
                    printf("--gig              loads a Gigasampler instrument\n");
                    printf("--dls              loads a DLS instrument\n");
                    printf("--instrument       index of the instrument in the instrument file if it\n");
                    printf("                   contains more than one (default: 0)\n");
                    printf("--numfragments     sets the number of audio fragments\n");
                    printf("--fragmentsize     sets the fragment size\n");
                    printf("--volume           sets global volume gain factor (a value > 1.0 means\n");
                    printf("                   amplification, a value < 1.0 means attenuation,\n");
                    printf("                   default: 0.25)\n");
                    printf("--inputclient      connects to an Alsa sequencer input client on startup\n");
                    printf("                   (e.g. 64:0 to connect to a client with ID 64 and port 0)\n");
                    printf("--alsaout          connects to the given Alsa sound device on startup\n");
                    printf("                   (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n");
                    printf("--jackout          connects to the given Jack playback ports on startup\n");
                    printf("                   (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n");
                    printf("                   in case of stereo output)\n");
                    printf("--samplerate       sets sample rate if supported by audio output system\n");
                    printf("                   (e.g. 44100)\n");
                    printf("--server           launch network server for remote control\n");
                    exit(EXIT_SUCCESS);
                    break;
            }
        }
    }
}*/
1	schoenebeck	9	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	61	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	9	* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#include <getopt.h>
24			#include <signal.h>
25
26	schoenebeck	53	#include "Sampler.h"
27	schoenebeck	35	#include "network/lscpserver.h"
28	schoenebeck	9
29	schoenebeck	53	#if 0
30	schoenebeck	9	#define AUDIO_CHANNELS 2 // stereo
31			#define AUDIO_FRAGMENTS 3 // 3 fragments, if it does not work set it to 2
32			#define AUDIO_FRAGMENTSIZE 512 // each fragment has 512 frames
33			#define AUDIO_SAMPLERATE 44100 // Hz
34	schoenebeck	53	#endif
35	schoenebeck	9
36	schoenebeck	53	using namespace LinuxSampler;
37
38			/*enum patch_format_t {
39	schoenebeck	9	patch_format_unknown,
40			patch_format_gig,
41			patch_format_dls
42	schoenebeck	53	} patch_format = patch_format_unknown;*/
43	schoenebeck	9
44	schoenebeck	53	Sampler* pSampler = NULL;
45	schoenebeck	35	LSCPServer* pLSCPServer = NULL;
46	schoenebeck	53	pthread_t signalhandlerthread;
47			/AudioThread pEngine = NULL;
48	schoenebeck	35	uint instrument_index = 0;
49			double volume = 0.25;
50			int num_fragments = AUDIO_FRAGMENTS;
51			int fragmentsize = AUDIO_FRAGMENTSIZE;
52			uint samplerate = AUDIO_SAMPLERATE;
53			String input_client;
54			String alsaout = "0,0"; // default card
55			String jack_playback[2] = { "", "" };
56			bool use_jack = true;
57	schoenebeck	53	bool run_server = false;*/
58	schoenebeck	9
59	schoenebeck	53
60	schoenebeck	9	void parse_options(int argc, char **argv);
61			void signal_handler(int signal);
62
63			int main(int argc, char **argv) {
64
65			// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
66	schoenebeck	13	signalhandlerthread = pthread_self();
67	schoenebeck	9	signal(SIGINT, signal_handler);
68
69			// parse and assign command line options
70	schoenebeck	53	//parse_options(argc, argv);
71	schoenebeck	9
72	schoenebeck	53	/*if (patch_format != patch_format_gig) {
73	schoenebeck	12	printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");
74	schoenebeck	20	printf("Use 'linuxsampler --help' to see all available options.\n");
75	schoenebeck	9	return EXIT_FAILURE;
76	schoenebeck	53	}*/
77	schoenebeck	9
78	schoenebeck	53	// create LinuxSampler instance
79			pSampler = new Sampler;
80
81			// create an audio output device
82			/* bool no_jack = true;
83	schoenebeck	31	#if HAVE_JACK
84	schoenebeck	33	if (use_jack) {
85	schoenebeck	53	dmsg(1,("Creating audio output device (Jack)..."));
86			try {
87			pSampler->CreateAudioOutputDevice(audio_output_type_jack);
88			no_jack = false;
89			}
90			catch (AudioOutputException aoe) {
91			aoe.PrintMessage();
92			dmsg(1,("Trying to create Alsa output device instead.\n"));
93			}
94	schoenebeck	33	}
95			#endif // HAVE_JACK
96	schoenebeck	53	if (no_jack) {
97			dmsg(1,("Creating audio output device (Alsa)..."));
98			try {
99			pSampler->CreateAudioOutputDevice(audio_output_type_alsa);
100			}
101			catch (AudioOutputException aoe) {
102			aoe.PrintMessage();
103			dmsg(1,("Trying to create Alsa output device instead.\n"));
104			return EXIT_FAILURE;
105			}
106	schoenebeck	31	}
107	schoenebeck	53	dmsg(1,("OK\n"));*/
108	schoenebeck	9
109	schoenebeck	53	// start LSCP network server
110			dmsg(1,("Starting network server..."));
111			pLSCPServer = new LSCPServer(pSampler);
112			pLSCPServer->StartThread();
113	schoenebeck	12	dmsg(1,("OK\n"));
114	schoenebeck	9
115			printf("LinuxSampler initialization completed.\n");
116
117	senoner	10	while(true) {
118	schoenebeck	53	/*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
119	schoenebeck	35	pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
120			pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
121	schoenebeck	53	fflush(stdout);*/
122	senoner	10	usleep(500000);
123			}
124
125	schoenebeck	9	return EXIT_SUCCESS;
126			}
127
128			void signal_handler(int signal) {
129	schoenebeck	20	if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {
130	schoenebeck	53	if (pLSCPServer) {
131			pLSCPServer->StopThread();
132			delete pLSCPServer;
133			}
134			if (pSampler) delete pSampler;
135	schoenebeck	9	printf("LinuxSampler stopped due to SIGINT\n");
136			exit(EXIT_SUCCESS);
137			}
138			}
139
140	schoenebeck	53	/void parse_options(int argc, char *argv) {
141	schoenebeck	9	int res;
142			int option_index = 0;
143			static struct option long_options[] =
144			{
145			{"numfragments",1,0,0},
146			{"fragmentsize",1,0,0},
147	schoenebeck	20	{"volume",1,0,0},
148	schoenebeck	9	{"dls",0,0,0},
149			{"gig",0,0,0},
150	schoenebeck	20	{"instrument",1,0,0},
151			{"inputclient",1,0,0},
152	schoenebeck	33	{"alsaout",1,0,0},
153			{"jackout",1,0,0},
154			{"samplerate",1,0,0},
155	schoenebeck	35	{"server",0,0,0},
156	schoenebeck	9	{"help",0,0,0},
157			{0,0,0,0}
158			};
159
160			while (true) {
161			res = getopt_long_only(argc, argv, "", long_options, &option_index);
162			if(res == -1) break;
163			if (res == 0) {
164			switch(option_index) {
165	schoenebeck	33	case 0: // --numfragments
166	schoenebeck	9	num_fragments = atoi(optarg);
167			break;
168	schoenebeck	33	case 1: // --fragmentsize
169	schoenebeck	9	fragmentsize = atoi(optarg);
170			break;
171	schoenebeck	33	case 2: // --volume
172	schoenebeck	20	volume = atof(optarg);
173			break;
174	schoenebeck	33	case 3: // --dls
175	schoenebeck	9	patch_format = patch_format_dls;
176			break;
177	schoenebeck	33	case 4: // --gig
178	schoenebeck	9	patch_format = patch_format_gig;
179			break;
180	schoenebeck	33	case 5: // --instrument
181	schoenebeck	20	instrument_index = atoi(optarg);
182			break;
183	schoenebeck	33	case 6: // --inputclient
184	schoenebeck	20	input_client = optarg;
185			break;
186	schoenebeck	33	case 7: // --alsaout
187			alsaout = optarg;
188			use_jack = false; // If this option is specified do not connect to jack
189			break;
190			case 8: { // --jackout
191			try {
192			String arg(optarg);
193			// remove outer apostrophes
194			arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1));
195			// split in two arguments
196			jack_playback[0] = arg.substr(0, arg.find("\' "));
197			jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2));
198			// remove inner apostrophes
199			jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\''));
200			jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\''));
201			// this is the default but set it up anyway in case alsa_card was also used.
202			use_jack = true;
203			}
204			catch (...) {
205			fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg);
206			exit(EXIT_FAILURE);
207			}
208			break;
209			}
210			case 9: // --samplerate
211			samplerate = atoi(optarg);
212			break;
213	schoenebeck	35	case 10: // --server
214			run_server = true;
215			break;
216			case 11: // --help
217	schoenebeck	9	printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
218	schoenebeck	20	printf("--gig loads a Gigasampler instrument\n");
219			printf("--dls loads a DLS instrument\n");
220			printf("--instrument index of the instrument in the instrument file if it\n");
221			printf(" contains more than one (default: 0)\n");
222	schoenebeck	9	printf("--numfragments sets the number of audio fragments\n");
223			printf("--fragmentsize sets the fragment size\n");
224	schoenebeck	20	printf("--volume sets global volume gain factor (a value > 1.0 means\n");
225			printf(" amplification, a value < 1.0 means attenuation,\n");
226			printf(" default: 0.25)\n");
227			printf("--inputclient connects to an Alsa sequencer input client on startup\n");
228			printf(" (e.g. 64:0 to connect to a client with ID 64 and port 0)\n");
229	schoenebeck	33	printf("--alsaout connects to the given Alsa sound device on startup\n");
230			printf(" (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n");
231			printf("--jackout connects to the given Jack playback ports on startup\n");
232			printf(" (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n");
233			printf(" in case of stereo output)\n");
234			printf("--samplerate sets sample rate if supported by audio output system\n");
235			printf(" (e.g. 44100)\n");
236	schoenebeck	35	printf("--server launch network server for remote control\n");
237	schoenebeck	33	exit(EXIT_SUCCESS);
238	schoenebeck	9	break;
239			}
240			}
241			}
242	schoenebeck	53	}*/