Internal code editor. Sound system.

1 files changed, 134 insertions, 0 deletions

diff --git a/src/soundplayer.cc b/src/soundplayer.cc
new file mode 100644
index 0000000..c59e84e
--- /dev/null
+++ b/src/soundplayer.cc
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            soundplayer.cc
+ *
+ *  Fri Sep  5 17:31:28 CEST 2014
+ *  Copyright 2014 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Kaiman.
+ *
+ *  Kaiman 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.
+ *
+ *  Kaiman 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 Kaiman; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "soundplayer.h"
+
+#include <ao/ao.h>
+#include <sndfile.h>
+
+#define BUFSZ 512
+
+SoundPlayer::SoundPlayer()
+{
+  start();
+}
+
+SoundPlayer::~SoundPlayer()
+{
+  running = false;
+  wait();
+}
+
+void SoundPlayer::run()
+{
+
+  printf("SoundPlayer running\n");
+
+  ao_initialize();
+
+  ao_sample_format sf;
+  memset(&sf, 0, sizeof(sf));
+  sf.bits = 16;
+  sf.rate = 44100;
+  sf.channels = 2;
+  sf.byte_format = AO_FMT_NATIVE;
+
+  ao_device *dev = ao_open_live(ao_default_driver_id(), &sf, 0);
+
+  running = true;
+
+  short s[BUFSZ];
+  while(running) {
+
+    { // Check for new Selection.
+      QMutexLocker lock(&mutex);
+      while(queue.size()) {
+        printf(" - New sound\n");
+        active.append(queue.front());
+        queue.pop_front();
+      }
+    }
+
+    memset(s, 0, BUFSZ * sizeof(short));
+    
+    QList<QueueItem>::iterator it = active.begin();
+    while(it != active.end()) {
+      QueueItem &item = *it;
+
+      for(size_t i = 0; i < BUFSZ; i++) {
+        if(item.pos >= item.size) {
+          it = active.erase(it);
+          goto nextitem;
+        }
+        s[i] += item.samples[item.pos] * 32536;
+        item.pos++;
+      }
+
+      it++;
+
+    nextitem:
+      int a = 1;(void)a;
+    }
+
+    ao_play(dev, (char*)s, BUFSZ * sizeof(short));
+  }
+
+  ao_close(dev);
+  ao_shutdown();
+}
+
+void SoundPlayer::playFile(QString file)
+{
+
+  printf(" - playFile(%s)\n", file.toStdString().c_str());
+
+  SNDFILE *fh;
+  SF_INFO sf_info;
+
+  fh = sf_open(file.toStdString().c_str(), SFM_READ, &sf_info);
+  if(!fh) {
+    printf("Load error '%s'\n", file.toStdString().c_str());
+    return;
+  }
+  
+  size_t size = sf_info.frames * sf_info.channels;
+  float *data = new float[size];
+  sf_read_float(fh, data, size); 
+
+  sf_close(fh);
+
+  QueueItem qi;
+  qi.samples = data;
+  qi.pos = 0;
+  qi.size = size;
+
+  {
+    QMutexLocker lock(&mutex);
+    queue.append(qi);
+  }
+
+}