added Asus Xtion QVGA modes to the OpenNI backend (patch #1753)

modules/highgui/include/opencv2/highgui/highgui_c.h

@@ -475,22 +475,25 @@ enum
 {
     CV_CAP_OPENNI_VGA_30HZ     = 0,
     CV_CAP_OPENNI_SXGA_15HZ    = 1,
-    CV_CAP_OPENNI_SXGA_30HZ    = 2
+    CV_CAP_OPENNI_SXGA_30HZ    = 2,
+    CV_CAP_OPENNI_QVGA_30HZ    = 3,
+    CV_CAP_OPENNI_QVGA_60HZ    = 4
 };
 
 //supported by Android camera output formats
 enum
 {
-  CV_CAP_ANDROID_COLOR_FRAME_BGR = 0, //BGR
-  CV_CAP_ANDROID_COLOR_FRAME = CV_CAP_ANDROID_COLOR_FRAME_BGR,
-  CV_CAP_ANDROID_GREY_FRAME  = 1,  //Y
-  CV_CAP_ANDROID_COLOR_FRAME_RGB = 2,
-  CV_CAP_ANDROID_COLOR_FRAME_BGRA = 3,
-  CV_CAP_ANDROID_COLOR_FRAME_RGBA = 4
+    CV_CAP_ANDROID_COLOR_FRAME_BGR = 0, //BGR
+    CV_CAP_ANDROID_COLOR_FRAME = CV_CAP_ANDROID_COLOR_FRAME_BGR,
+    CV_CAP_ANDROID_GREY_FRAME  = 1,  //Y
+    CV_CAP_ANDROID_COLOR_FRAME_RGB = 2,
+    CV_CAP_ANDROID_COLOR_FRAME_BGRA = 3,
+    CV_CAP_ANDROID_COLOR_FRAME_RGBA = 4
 };
 
 // supported Android camera flash modes
-enum {
+enum
+{
     CV_CAP_ANDROID_FLASH_MODE_AUTO = 0,
     CV_CAP_ANDROID_FLASH_MODE_OFF,
     CV_CAP_ANDROID_FLASH_MODE_ON,
@@ -499,7 +502,8 @@ enum {
 };
 
 // supported Android camera focus modes
-enum {
+enum
+{
     CV_CAP_ANDROID_FOCUS_MODE_AUTO = 0,
     CV_CAP_ANDROID_FOCUS_MODE_CONTINUOUS_VIDEO,
     CV_CAP_ANDROID_FOCUS_MODE_EDOF,
@@ -509,7 +513,8 @@ enum {
 };
 
 // supported Android camera white balance modes
-enum {
+enum
+{
     CV_CAP_ANDROID_WHITE_BALANCE_AUTO = 0,
     CV_CAP_ANDROID_WHITE_BALANCE_CLOUDY_DAYLIGHT,
     CV_CAP_ANDROID_WHITE_BALANCE_DAYLIGHT,
@@ -521,7 +526,8 @@ enum {
 };
 
 // supported Android camera antibanding modes
-enum {
+enum
+{
     CV_CAP_ANDROID_ANTIBANDING_50HZ = 0,
     CV_CAP_ANDROID_ANTIBANDING_60HZ,
     CV_CAP_ANDROID_ANTIBANDING_AUTO,

modules/highgui/src/cap_openni.cpp

@@ -1112,6 +1112,16 @@ bool CvCapture_OpenNI::setImageGeneratorProperty( int propIdx, double propValue
             mode.nYRes = XN_SXGA_Y_RES;
             mode.nFPS = 30;
             break;
+        case CV_CAP_OPENNI_QVGA_30HZ :
+             mode.nXRes = XN_QVGA_X_RES;
+             mode.nYRes = XN_QVGA_Y_RES;
+             mode.nFPS = 30;
+             break;
+        case CV_CAP_OPENNI_QVGA_60HZ :
+             mode.nXRes = XN_QVGA_X_RES;
+             mode.nYRes = XN_QVGA_Y_RES;
+             mode.nFPS = 60;
+             break;
         default :
             CV_Error( CV_StsBadArg, "Unsupported image generator output mode.\n");
         }

samples/cpp/openni_capture.cpp

@@ -215,6 +215,13 @@ int main( int argc, char* argv[] )
             case 2:
                 modeRes = capture.set( CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE, CV_CAP_OPENNI_SXGA_30HZ );
                 break;
+                //The following modes are only supported by the Xtion Pro Live
+            case 3:
+                modeRes = capture.set( CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE, CV_CAP_OPENNI_QVGA_30HZ );
+                break;
+            case 4:
+                modeRes = capture.set( CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE, CV_CAP_OPENNI_QVGA_60HZ );
+                break;
             default:
                 CV_Error( CV_StsBadArg, "Unsupported image mode property.\n");
         }