killin a nasty workaround

v4l2/grabvidseq.c

@@ -315,10 +315,6 @@ if (to_gray) {
 	// save cumul to file
 if (verbosity) fprintf(stderr, "saving to '%s'\n", outfile);
 
-if (upscaling) {		/* nasty workaround */
-	cumul.count /= 4;	/* WTF ? */
-	}
-
 foo = fimg_save_as_pnm(&cumul, outfile, 1);
 
 	// free buffers

v4l2/rgb2fimg.c

@@ -47,7 +47,9 @@ for (y=0; y<h; y++) {
 
 modz++;			/* next displacment index */
 
-d->count++;		/* one more frame in the accumulator */
+if ( ! (modz & 0x03)) {
+	d->count++;		/* one more frame in the accumulator */
+	}
 
 return -1;
 }