fixed incorrect dump of the pixel format

17402254 · Vadim Pisarevsky · GitHub · a13862e9 · 17402254
Unverified Commit 17402254 authored Feb 03, 2020 by Vadim Pisarevsky Committed by GitHub Feb 03, 2020
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cap_avfoundation.mm modules/videoio/src/cap_avfoundation.mm +3 -1

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--- a/modules/videoio/src/cap_avfoundation.mm
+++ b/modules/videoio/src/cap_avfoundation.mm
@@ -1052,7 +1052,9 @@ IplImage* CvCaptureFile::retrieveFramePixelBuffer() {
            return 0;
        }
    } else {
-        fprintf(stderr, "OpenCV: unsupported pixel format '%s'\n", pixelFormat);
+        char pfBuf[] = { (char)pixelFormat, (char)(pixelFormat >> 8),
+                         (char)(pixelFormat >> 16), (char)(pixelFormat >> 24), '\0' };
+        fprintf(stderr, "OpenCV: unsupported pixel format '%s'\n", pfBuf);
        CVPixelBufferUnlockBaseAddress(mGrabbedPixels, 0);
        CVBufferRelease(mGrabbedPixels);
        mGrabbedPixels = NULL;