Merge pull request #1074 from devernay:2.4-cap_qt-multithread

12 years ago · c4e59866a2
parent b6b1d5e75d b524e275c1
commit c4e59866a2
1 changed files with 2 additions and 5 deletions
--- a/modules/highgui/src/cap_qtkit.mm
+++ b/modules/highgui/src/cap_qtkit.mm
@ -277,11 +277,8 @@ bool CvCaptureCAM::grabFrame(double timeOut) {
    double sleepTime = 0.005;
    double total = 0;
-    NSDate *loopUntil = [NSDate dateWithTimeIntervalSinceNow:sleepTime];
+    while (![capture updateImage] && (total += sleepTime)<=timeOut)
-    while (![capture updateImage] && (total += sleepTime)<=timeOut &&
+        usleep((int)(sleepTime*1000));
           [[NSRunLoop currentRunLoop] runMode: NSDefaultRunLoopMode
                                    beforeDate:loopUntil])
        loopUntil = [NSDate dateWithTimeIntervalSinceNow:sleepTime];
    [localpool drain];