added output camera id if it fails

975ecaca · Gary Bradski · 251918e1 · 975ecaca
Commit 975ecaca authored Feb 13, 2011 by Gary Bradski
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calibration.cpp samples/cpp/calibration.cpp +1 -1

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--- a/samples/cpp/calibration.cpp
+++ b/samples/cpp/calibration.cpp
@@ -414,7 +414,7 @@ int main( int argc, char** argv )
        capture.open(cameraId);
    if( !capture.isOpened() && imageList.empty() )
-        return fprintf( stderr, "Could not initialize video capture\n" ), -2;
+        return fprintf( stderr, "Could not initialize video (%d) capture\n",cameraId ), -2;
    if( !imageList.empty() )
        nframes = (int)imageList.size();