quartz: Don't print errors for handled return values.

dlls/quartz/acmwrapper.c

@@ -137,6 +137,7 @@ static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilte
 	unprepare_header = TRUE;
 
 	if ((res = acmStreamConvert(This->has, &ash, This->reinit_codec ? ACM_STREAMCONVERTF_START : 0))) {
+	    if(res != MMSYSERR_MOREDATA)
 	        ERR("Cannot convert data header %d\n", res);
 	    goto error;
 	}
@@ -156,6 +157,7 @@ static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilte
 
         hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
+            if (FAILED(hr))
                 ERR("Error sending sample (%x)\n", hr);
             goto error;
         }