[Gnash-commit] /srv/bzr/gnash/trunk r11279: added a utility that helps set default webcam in gnashrc file for use with VideoInput

[Ben Limmer]

------------------------------------------------------------
revno: 11279
committer: Ben Limmer <address@hidden>
branch nick: trunk
timestamp: Fri 2009-07-17 14:00:12 -0600
message:
  added a utility that helps set default webcam in gnashrc file for use with 
VideoInput
added:
  utilities/findwebcams.cpp
modified:
  utilities/Makefile.am

=== modified file 'utilities/Makefile.am'
--- a/utilities/Makefile.am     2009-06-13 20:34:48 +0000
+++ b/utilities/Makefile.am     2009-07-17 20:00:12 +0000
@@ -63,7 +63,7 @@
         -DLOCALEDIR=\"$(localedir)\" \
        $(PTHREAD_CFLAGS) \
        $(BOOST_CFLAGS) \
-        $(MYSQL_CFLAGS) \
+    $(MYSQL_CFLAGS) \
        $(NULL)
 
 if WIN32
@@ -82,7 +82,7 @@
  GNASH_LIBS += $(GLIB_LIBS) $(GSTREAMER_LIBS)
 endif
 
-bin_PROGRAMS = gprocessor soldumper dumpshm flvdumper 
+bin_PROGRAMS = gprocessor soldumper dumpshm flvdumper findwebcams
 #check_PROGRAMS = gdebug.swf
 
 gprocessor_SOURCES = processor.cpp
@@ -100,6 +100,9 @@
 flvdumper_SOURCES = flvdumper.cpp
 flvdumper_LDADD = $(GNASH_LIBS) $(AM_LDFLAGS)
 
+findwebcams_SOURCES = findwebcams.cpp
+findwebcams_LDADD = $(GNASH_LIBS) $(AM_LDFLAGS)
+
 # Rebuild with GCC 4.x Mudflap support
 mudflap:
        @echo "Rebuilding with GCC Mudflap support"

=== added file 'utilities/findwebcams.cpp'
--- a/utilities/findwebcams.cpp 1970-01-01 00:00:00 +0000
+++ b/utilities/findwebcams.cpp 2009-07-17 20:00:12 +0000
@@ -0,0 +1,176 @@
+// 
+//   Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// 
+// 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 3 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+
+#ifdef HAVE_CONFIG_H
+#include "gnashconfig.h"
+#endif
+
+#include "rc.h"
+#include "gst/gst.h"
+#include <gst/interfaces/propertyprobe.h>
+
+#include <vector>
+
+namespace {
+       //get rc file for webcam selection
+       gnash::RcInitFile& rcfile = gnash::RcInitFile::getDefaultInstance();
+}
+
+class data {
+       public:
+               data();
+               gchar* deviceName;
+               gchar* deviceType;
+};
+
+data::data() {
+       deviceName = NULL;
+       deviceType = NULL;
+};
+
+gint findVidDevs(std::vector<data*>& vidVect) {
+       gint numdevs = 0;
+       
+       //vid test source
+       GstElement *element;
+       element = gst_element_factory_make ("videotestsrc", "vidtestsrc");
+       
+       if (element == NULL) {
+               vidVect.push_back(NULL);
+               numdevs += 1;
+       } else {
+               vidVect.push_back(new data);
+               vidVect[numdevs]->deviceName = g_strdup_printf("videotestsrc");
+               vidVect[numdevs]->deviceType = g_strdup_printf("videotestsrc");
+               numdevs += 1;
+       }
+       
+       //video4linux source
+       GstPropertyProbe *probe;
+       GValueArray *devarr;
+       element = NULL;
+       gint i;
+       
+       element = gst_element_factory_make ("v4lsrc", "v4lvidsrc");
+       probe = GST_PROPERTY_PROBE (element);
+       devarr = gst_property_probe_probe_and_get_values_name (probe, "device");
+       for (i = 0; devarr != NULL && i < devarr->n_values; ++i) {
+               GValue *val;
+               gchar *dev_name = NULL;
+               
+               val = g_value_array_get_nth (devarr, i);
+               g_object_set (element, "device", g_value_get_string (val), 
NULL);
+               gst_element_set_state (element, GST_STATE_PLAYING);
+               g_object_get (element, "device-name", &dev_name, NULL);
+               gst_element_set_state (element, GST_STATE_NULL);
+               if (dev_name == "null") {
+                       g_print("no v4l video sources found\n");
+               }
+               else { 
+                       vidVect.push_back(new data);
+                       vidVect[numdevs]->deviceType = 
g_strdup_printf("v4lsrc");
+                       vidVect[numdevs]->deviceName = dev_name;
+                       numdevs += 1;
+               }
+       }
+       if (devarr) {
+               g_value_array_free (devarr);
+       }
+       
+       
+       //video4linux2 source
+       probe = NULL;
+       element = NULL;
+       devarr = NULL;
+       
+       element = gst_element_factory_make ("v4l2src", "v4l2vidsrc");
+       probe = GST_PROPERTY_PROBE (element);
+       devarr = gst_property_probe_probe_and_get_values_name (probe, "device");
+       for (i = 0; devarr != NULL && i < devarr->n_values; ++i) {
+               GValue *val;
+               gchar *dev_name = NULL;
+               
+               val = g_value_array_get_nth (devarr, i);
+               g_object_set (element, "device", g_value_get_string (val), 
NULL);
+               gst_element_set_state (element, GST_STATE_PLAYING);
+               g_object_get (element, "device-name", &dev_name, NULL);
+               gst_element_set_state (element, GST_STATE_NULL);
+               if (dev_name == "null") {
+                       g_print("no v4l2 video sources found.\n");
+               }
+               else { 
+                       vidVect.push_back(new data);
+                       vidVect[numdevs]->deviceType = 
g_strdup_printf("v4l2src");
+                       vidVect[numdevs]->deviceName = dev_name;
+                       
+                       numdevs += 1;
+               }
+       }
+       if (devarr) {
+               g_value_array_free (devarr);
+       }
+       
+       return numdevs;
+}
+
+int main () {
+       //initialize gstreamer to probe for devs
+       gst_init(NULL, NULL);
+       gint numdevs = 0;
+       std::vector<data*> vidVector;
+       gint i;
+       
+       int fromrc = rcfile.getWebcamDevice();
+       
+       if (fromrc == -1) {
+               g_print("Use this utility to set your desired default webcam 
device.\n");
+               numdevs = findVidDevs(vidVector);
+               g_print("\nFound %d video devices: \n\n", numdevs);
+               for (i = 0; i < numdevs; ++i)
+               {
+                       if (i == 0 && (vidVector[i] != 0)) {
+                               g_print("%d. device[%d] = Video Test Source 
(videotestsrc)\n", i, i);
+                       } else if (i == 0 && (vidVector[i] == 0)) {
+                               g_print("no test video device available");
+                       } else {
+                               g_print("%d. device[%d] = %s (%s)\n", i, i, 
vidVector[i]->deviceName,
+                                               vidVector[i]->deviceType);
+                       }
+               }
+               //prompt user for device selection
+               int dev_select = -1;
+               do {
+                       dev_select = -1;
+                       g_print("\nChoose the device you would like to use 
(0-%d): ",
+                               (numdevs - 1));
+                       std::cin >> dev_select;
+                       if ((dev_select < 0) || (dev_select > (numdevs - 1))) {
+                               g_print("You must make a valid device 
selection\n");
+                       }
+               } while ((dev_select < 0) || (dev_select > (numdevs - 1)));
+               g_print("\nTo select this camera, add this line to your gnashrc 
file:\n");
+               g_print("set webcamDevice %d\n", dev_select);
+       } else {
+               numdevs = findVidDevs(vidVector);
+               g_print("\nThe gnashrc file reports default webcam is set 
to:\n");
+               g_print("%s (%s)\n", vidVector[fromrc]->deviceName,
+                       vidVector[fromrc]->deviceType);
+               g_print("To change this setting, delete the 'set webcamDevice' 
line\n");
+               g_print("from your gnashrc file and re-run this program.\n\n");
+       }
+       return 1;
+}