"atomic bomb" commit. Reorganized OpenCV directory structure

samples/octave/capture-cam.m

@@ -0,0 +1,107 @@
+#! /usr/bin/env octave
+
+## import the necessary things for OpenCV
+addpath("/home/x/opencv2/interfaces/swig/octave");
+source("/home/x/opencv2/interfaces/swig/octave/PKG_ADD_template");
+debug_on_error(true);
+debug_on_warning(true);
+crash_dumps_octave_core (0)
+cv;
+highgui;
+
+## the codec existing in cvcapp.cpp,
+## need to have a better way to specify them in the future
+## WARNING: I have see only MPEG1VIDEO working on my computer
+H263 = 0x33363255;
+H263I = 0x33363249;
+MSMPEG4V3 = 0x33564944;
+MPEG4 = 0x58564944;
+MSMPEG4V2 = 0x3234504D;
+MJPEG = 0x47504A4D;
+MPEG1VIDEO = 0x314D4950;
+AC3 = 0x2000;
+MP2 = 0x50;
+FLV1 = 0x31564C46;
+
+#############################################################################
+## so, here is the main part of the program
+
+## a small welcome
+printf("OpenCV Octave capture video\n");
+
+## first, create the necessary window
+highgui.cvNamedWindow ('Camera', highgui.CV_WINDOW_AUTOSIZE);
+
+## move the new window to a better place
+#highgui.cvMoveWindow ('Camera', 10, 10);
+
+try
+  ## try to get the device number from the command line
+  device = int32 (argv(){1});
+catch
+  ## no device number on the command line, assume we want the 1st device
+  device = -1;
+end_try_catch
+
+## no argument on the command line, try to use the camera
+capture = highgui.cvCreateCameraCapture (device);
+
+## check that capture device is OK
+if (!swig_this(capture))
+  printf("Error opening capture device\n");
+  exit (1);
+endif
+
+## capture the 1st frame to get some propertie on it
+frame = highgui.cvQueryFrame (capture);
+
+## get size of the frame
+frame_size = cv.cvGetSize (frame);
+
+## get the frame rate of the capture device
+fps = highgui.cvGetCaptureProperty (capture, highgui.CV_CAP_PROP_FPS);
+if (fps == 0)
+  ## no fps getted, so set it to 30 by default
+  fps = 30;
+endif
+
+## create the writer
+writer = highgui.cvCreateVideoWriter ("captured.mpg", MPEG1VIDEO,
+                                      fps, frame_size, true);
+
+## check the writer is OK
+if (!swig_this(writer))
+  printf("Error opening writer\n");
+  exit(1);
+endif
+
+while (1)
+  ## do forever
+
+  ## 1. capture the current image
+  frame = highgui.cvQueryFrame (capture);
+  if (swig_this(frame) == 0)
+    ## no image captured... end the processing
+    break
+  endif
+
+  ## write the frame to the output file
+  highgui.cvWriteFrame (writer, frame);
+
+  ## display the frames to have a visual output
+  highgui.cvShowImage ('Camera', frame);
+
+  ## handle events
+  k = highgui.cvWaitKey (5);
+
+  if (k & 0x100 == 27)
+    ## user has press the ESC key, so exit
+    break
+  endif
+endwhile
+
+
+## end working with the writer
+## not working at this time... Need to implement some typemaps...
+## but exiting without calling it is OK in this simple application
+##highgui.cvReleaseVideoWriter (writer)