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+ /*
+
+ Copyright (C) 2000 Stefan Westerfeld
+
+ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ Permission is also granted to link this program with the Qt
+ library, treating Qt like a library that normally accompanies the
+ operating system kernel, whether or not that is in fact the case.
+
+ */
+
+#include "soundserver.h"
+#include "stdsynthmodule.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <iostream>
+#include <math.h>
+
+using namespace std;
+using namespace Arts;
+
+class Sender : public ByteSoundProducer_skel,
+ public StdSynthModule
+{
+ bool _finished;
+ int pos;
+public:
+ Sender() : _finished(false), pos(0)
+ {
+ }
+ long samplingRate() { return 44100; }
+ long channels() { return 2; }
+ long bits() { return 16; }
+ bool finished() { return _finished; }
+
+ static const int packetCount = 10, packetCapacity = 1024;
+ void streamStart()
+ {
+ /*
+ * start streaming
+ */
+ outdata.setPull(packetCount, packetCapacity);
+ }
+
+ void request_outdata(DataPacket<mcopbyte> *packet)
+ {
+ /*
+ * fill the packet with new data
+ */
+ // ----------------- audio fill up start -----------------
+
+ int j;
+ mcopbyte *to = &packet->contents[0];
+ for(j=0;j<packetCapacity/4;j++)
+ {
+ // generate two sin waves
+ float fpos = ((float)pos)/44100.0;
+ long left = (long)(sin(fpos*6.28*440.0)*30000.0);
+ long right = (long)(sin(fpos*6.28*880.0)*30000.0);
+ pos++;
+
+ // put the samples in the packet
+ *to++ = left & 0xff;
+ *to++ = (left >> 8) & 0xff;
+ *to++ = right & 0xff;
+ *to++ = (right >> 8) & 0xff;
+ }
+
+ // ------------------ audio fill up end ------------------
+ packet->send();
+ }
+};
+
+int main(int argc, char **argv)
+{
+ Dispatcher dispatcher;
+ SimpleSoundServer server = Reference("global:Arts_SimpleSoundServer");
+
+ if(server.isNull())
+ {
+ cerr << "Can't connect to sound server" << endl;
+ return 1;
+ }
+
+ ByteSoundProducer sender = ByteSoundProducer::_from_base(new Sender());
+ server.attach(sender);
+ sender.start();
+ dispatcher.run();
+ server.detach(sender); // in this example: not reached
+}