From: Vadim Pisarevsky <no@email>
Date: Fri, 30 Mar 2012 14:13:21 +0000 (+0000)
Subject: added video stream positioning in QTKit-based VideoCapture backend (patch #1420)
X-Git-Tag: accepted/tizen/6.0/unified/20201030.111113~5106
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=38f686252c9e01374603a96d0dc6210202a40c4e;p=platform%2Fupstream%2Fopencv.git

added video stream positioning in QTKit-based VideoCapture backend (patch #1420)
---

diff --git a/modules/highgui/src/cap_qtkit.mm b/modules/highgui/src/cap_qtkit.mm
index 3cbcb75..6efe4bd 100644
--- a/modules/highgui/src/cap_qtkit.mm
+++ b/modules/highgui/src/cap_qtkit.mm
@@ -864,6 +864,17 @@ bool CvCaptureFile::setProperty(int property_id, double value) {
 		case CV_CAP_PROP_FPS:
 			//etval = currentFPS;  
 			break; 
+		case CV_CAP_PROP_FRAME_COUNT:
+			{
+			NSArray *videoTracks = [mCaptureSession tracksOfMediaType:QTMediaTypeVideo];
+			if ([videoTracks count] > 0) {
+				QTMedia *media = [[videoTracks objectAtIndex:0] media];
+				retval = [[media attributeForKey:QTMediaSampleCountAttribute] longValue];
+			} else {
+				retval = 0;
+			}
+			}
+			break; 
 		case CV_CAP_PROP_FOURCC:
 		default:
 			retval = false;