utilities/findmicrophones.cpp

   1 //
   2 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   3 //   Foundation, Inc
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "gnashconfig.h"
  21 #endif
  22
  23 #include "rc.h"
  24 #ifdef HAVE_GST_GST_H
  25 #include "gst/gst.h"
  26 #endif
  27
  28 #ifdef HAVE_GST_INTERFACES_PROBEPROBE_H
  29 #include <gst/interfaces/propertyprobe.h>
  30 #endif
  31
  32 #include <vector>
  33 #include <string>
  34 #include <iostream>
  35
  36 namespace {
  37     //get rc file for webcam selection
  38     gnash::RcInitFile& rcfile = gnash::RcInitFile::getDefaultInstance();
  39 }
  40
  41 class data {
  42     public:
  43         data();
  44         gchar* deviceName;
  45         gchar* deviceType;
  46 };
  47
  48 data::data() {
  49     deviceName = NULL;
  50     deviceType = NULL;
  51 };
  52
  53 gint findAudioDevs(std::vector<data*>& audioVect) {
  54     gint numdevs = 0;
  55
  56     //vid test source
  57     GstElement *element;
  58     element = gst_element_factory_make ("audiotestsrc", "audiotestsrc");
  59
  60     if (element == NULL) {
  61         audioVect.push_back(NULL);
  62         numdevs += 1;
  63     } else {
  64         audioVect.push_back(new data);
  65         audioVect[numdevs]->deviceName = g_strdup_printf("audiotestsrc");
  66         audioVect[numdevs]->deviceType = g_strdup_printf("audiotestsrc");
  67         numdevs += 1;
  68     }
  69
  70     //pulseaudio src
  71     GstPropertyProbe *probe;
  72     GValueArray *devarr;
  73     element = NULL;
  74
  75     element = gst_element_factory_make ("pulsesrc", "pulsesrc");
  76     probe = GST_PROPERTY_PROBE (element);
  77     devarr = gst_property_probe_probe_and_get_values_name (probe, "device");
  78     for (size_t i = 0; devarr != NULL && i < devarr->n_values; ++i) {
  79         GValue *val;
  80         gchar *dev_name = NULL;
  81
  82         val = g_value_array_get_nth (devarr, i);
  83         g_object_set (element, "device", g_value_get_string (val), NULL);
  84         gst_element_set_state (element, GST_STATE_PLAYING);
  85         g_object_get (element, "device-name", &dev_name, NULL);
  86         gst_element_set_state (element, GST_STATE_NULL);
  87         if (strcmp(dev_name, "null") == 0) {
  88             g_print("no pulse audio sources found\n");
  89         }
  90         else if ((strstr(dev_name, "Monitor") != NULL)) {
  91             g_print("ignoring monitor (audio output)");
  92         }
  93         else {
  94             audioVect.push_back(new data);
  95             audioVect[numdevs]->deviceType = g_strdup_printf("pulsesrc");
  96             audioVect[numdevs]->deviceName = dev_name;
  97             numdevs += 1;
  98         }
  99     }
 100     if (devarr) {
 101         g_value_array_free (devarr);
 102     }
 103     return numdevs;
 104 }
 105
 106 int main () {
 107     //initialize gstreamer to probe for devs
 108     gst_init(NULL, NULL);
 109     gint numdevs = 0;
 110     std::vector<data*> audioVector;
 111     gint i;
 112
 113     int fromrc = rcfile.getAudioInputDevice();
 114
 115     if (fromrc == -1) {
 116         g_print("Use this utility to set your desired default microphone device.\n");
 117         numdevs = findAudioDevs(audioVector);
 118         g_print("\nFound %d audio input devices: \n\n", numdevs);
 119         for (i = 0; i < numdevs; ++i)
 120         {
 121             if (i == 0 && (audioVector[i] != 0)) {
 122                 g_print("%d. device[%d] = Audio Test Source (audiotestsrc)\n", i, i);
 123             } else if (i == 0 && (audioVector[i] == 0)) {
 124                 g_print("no test audio device available\n");
 125             } else {
 126                 g_print("%d. device[%d] = %s (%s)\n", i, i, audioVector[i]->deviceName,
 127                         audioVector[i]->deviceType);
 128             }
 129         }
 130         //prompt user for device selection
 131         int dev_select = -1;
 132         std::string fromCin;
 133         do {
 134             dev_select = -1;
 135             g_print("\nChoose the device you would like to use (0-%d): ",
 136                 (numdevs - 1));
 137             std::cin >> fromCin;
 138             if (fromCin.size() != 1) {
 139                 dev_select = -1;
 140             } else if (fromCin[0] == '0') {
 141                 dev_select = 0;
 142             } else {
 143                 dev_select = atoi(fromCin.c_str());
 144             }
 145             if ((dev_select < 0) || (dev_select > (numdevs - 1))) {
 146                 g_print("You must make a valid device selection\n");
 147             }
 148         } while ((dev_select < 0) || (dev_select > (numdevs - 1)));
 149         g_print("\nTo select this microphone, add this line to your gnashrc file:\n");
 150         g_print("set microphoneDevice %d\n", dev_select);
 151     } else {
 152         numdevs = findAudioDevs(audioVector);
 153         if ((size_t)fromrc < audioVector.size()) {
 154             g_print("\nThe gnashrc file reports default microphone is set to:\n");
 155             g_print("%s (%s)\n", audioVector[fromrc]->deviceName,
 156                 audioVector[fromrc]->deviceType);
 157             g_print("To change this setting, delete the 'set microphoneDevice' line\n");
 158             g_print("from your gnashrc file and re-run this program.\n\n");
 159         } else {
 160             g_print("\nYou have an invalid microphone chosen in your gnashrc file.\n");
 161             g_print("Try reattaching the device or deleting the value from gnashrc\n");
 162             g_print("and running this program again\n");
 163         }
 164     }
 165     return 1;
 166 }