1 files changed, 108 insertions, 0 deletions
diff --git a/gr-audio/lib/portaudio/portaudio_impl.cc b/gr-audio/lib/portaudio/portaudio_impl.cc
new file mode 100644
index 0000000000..ba37acc5fa
--- /dev/null
+++ b/gr-audio/lib/portaudio/portaudio_impl.cc
@@ -0,0 +1,108 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2013 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <portaudio_impl.h>
+#include <portaudio.h>
+#include <string.h>
+
+namespace gr {
+  namespace audio {
+
+    PaDeviceIndex
+    pa_find_device_by_name(const char *name)
+    {
+      int i;
+      int numDevices;
+      const PaDeviceInfo *pdi;
+      int len = strlen(name);
+      PaDeviceIndex result = paNoDevice;
+      numDevices = Pa_GetDeviceCount();
+      for(i = 0; i < numDevices; i++) {
+        pdi = Pa_GetDeviceInfo(i);
+        if(strncmp(name, pdi->name, len) == 0) {
+          result = i;
+          break;
+        }
+      }
+      return result;
+    }
+
+    void
+    print_devices()
+    {
+      int numDevices, defaultDisplayed;
+      const PaDeviceInfo *deviceInfo;
+
+      numDevices = Pa_GetDeviceCount();
+      if(numDevices < 0)
+        return;
+
+      printf("Number of devices found = %d\n", numDevices);
+
+      for(int i = 0; i < numDevices; i++) {
+        deviceInfo = Pa_GetDeviceInfo(i);
+        printf("--------------------------------------- device #%d\n", i);
+        /* Mark global and API specific default devices */
+        defaultDisplayed = 0;
+        if(i == Pa_GetDefaultInputDevice()) {
+          printf("[ Default Input");
+          defaultDisplayed = 1;
+        }
+        else if(i == Pa_GetHostApiInfo(deviceInfo->hostApi)->defaultInputDevice) {
+          const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo(deviceInfo->hostApi);
+          printf("[ Default %s Input", hostInfo->name);
+          defaultDisplayed = 1;
+        }
+
+        if(i == Pa_GetDefaultOutputDevice()) {
+          printf((defaultDisplayed ? "," : "["));
+          printf(" Default Output");
+          defaultDisplayed = 1;
+        }
+        else if(i == Pa_GetHostApiInfo(deviceInfo->hostApi)->defaultOutputDevice) {
+          const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo(deviceInfo->hostApi);
+          printf((defaultDisplayed ? "," : "["));
+          printf(" Default %s Output", hostInfo->name);
+          defaultDisplayed = 1;
+        }
+        if(defaultDisplayed)
+          printf(" ]\n");
+
+        /* print device info fields */
+        printf("Name                        = %s\n", deviceInfo->name);
+        printf("Host API                    = %s\n", Pa_GetHostApiInfo(deviceInfo->hostApi)->name );
+        printf("Max inputs = %d", deviceInfo->maxInputChannels);
+        printf(", Max outputs = %d\n", deviceInfo->maxOutputChannels);
+
+        printf("Default low input latency   = %8.3f\n", deviceInfo->defaultLowInputLatency);
+        printf("Default low output latency  = %8.3f\n", deviceInfo->defaultLowOutputLatency);
+        printf("Default high input latency  = %8.3f\n", deviceInfo->defaultHighInputLatency);
+        printf("Default high output latency = %8.3f\n", deviceInfo->defaultHighOutputLatency);
+      }
+    }
+
+  } /* namespace audio */
+} /* namespace gr */