diff --git a/sys/dshowsrcwrapper/gstdshowaudiosrc.cpp b/sys/dshowsrcwrapper/gstdshowaudiosrc.cpp
index f9e4eb0bbf..bdf3c47b3d 100644
--- a/sys/dshowsrcwrapper/gstdshowaudiosrc.cpp
+++ b/sys/dshowsrcwrapper/gstdshowaudiosrc.cpp
@@ -94,8 +94,8 @@ static void gst_dshowaudiosrc_reset (GstAudioSrc * asrc);
 /* utils */
 static GstCaps *gst_dshowaudiosrc_getcaps_from_streamcaps (GstDshowAudioSrc *
     src, IPin * pin, IAMStreamConfig * streamcaps);
-static gboolean gst_dshowaudiosrc_push_buffer (byte * buffer, long size,
-    gpointer src_object, UINT64 start, UINT64 stop);
+static gboolean gst_dshowaudiosrc_push_buffer (guint8 * buffer, guint size,
+    gpointer src_object, GstClockTime duration);
 
 static void
 gst_dshowaudiosrc_init_interfaces (GType type)
@@ -830,8 +830,8 @@ gst_dshowaudiosrc_getcaps_from_streamcaps (GstDshowAudioSrc * src, IPin * pin,
 }
 
 static gboolean
-gst_dshowaudiosrc_push_buffer (byte * buffer, long size, gpointer src_object,
-    UINT64 start, UINT64 stop)
+gst_dshowaudiosrc_push_buffer (guint8 * buffer, guint size, gpointer src_object,
+    GstClockTime duration)
 {
   GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (src_object);
 
@@ -840,7 +840,7 @@ gst_dshowaudiosrc_push_buffer (byte * buffer, long size, gpointer src_object,
   }
 
   g_mutex_lock (src->gbarray_lock);
-  g_byte_array_prepend (src->gbarray, (guint8 *) buffer, size);
+  g_byte_array_prepend (src->gbarray, buffer, size);
   g_mutex_unlock (src->gbarray_lock);
 
   return TRUE;
diff --git a/sys/dshowsrcwrapper/gstdshowfakesink.cpp b/sys/dshowsrcwrapper/gstdshowfakesink.cpp
index 0dbdcadbb5..ca6a9a65a9 100644
--- a/sys/dshowsrcwrapper/gstdshowfakesink.cpp
+++ b/sys/dshowsrcwrapper/gstdshowfakesink.cpp
@@ -57,17 +57,17 @@ HRESULT CDshowFakeSink::CheckMediaType (const CMediaType * pmt)
 HRESULT CDshowFakeSink::DoRenderSample (IMediaSample * pMediaSample)
 {
   if (pMediaSample && m_callback) {
-    BYTE *
-        pBuffer = NULL;
-    LONGLONG
-        lStart = 0, lStop = 0;
+    guint8 *pBuffer = NULL;
     pMediaSample->GetPointer (&pBuffer);
-    long
-        size = pMediaSample->GetActualDataLength ();
+
+    guint size = pMediaSample->GetActualDataLength ();
+
+    GstClockTimeDiff lStart = 0;
+    GstClockTimeDiff lStop = 0;
     pMediaSample->GetTime (&lStart, &lStop);
-    lStart *= 100;
-    lStop *= 100;
-    m_callback (pBuffer, size, m_data, lStart, lStop);
+
+    GstClockTime duration = (lStop - lStart) * 100;
+    m_callback (pBuffer, size, m_data, duration);
   }
 
   return S_OK;
diff --git a/sys/dshowsrcwrapper/gstdshowfakesink.h b/sys/dshowsrcwrapper/gstdshowfakesink.h
index 78302ab6a3..9349db583b 100644
--- a/sys/dshowsrcwrapper/gstdshowfakesink.h
+++ b/sys/dshowsrcwrapper/gstdshowfakesink.h
@@ -30,8 +30,8 @@ static const GUID CLSID_DshowFakeSink =
     0x73}
 };
 
-typedef bool (*push_buffer_func) (byte * buffer, long size, gpointer src_object,
-    UINT64 start, UINT64 stop);
+typedef bool (*push_buffer_func) (guint8 * buffer, guint size, gpointer src_object,
+    GstClockTime duration);
 
 class CDshowFakeSink:public CBaseRenderer
 {
diff --git a/sys/dshowsrcwrapper/gstdshowvideosrc.cpp b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp
index 601eee25d4..ef722c2180 100644
--- a/sys/dshowsrcwrapper/gstdshowvideosrc.cpp
+++ b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp
@@ -101,8 +101,8 @@ static GstCaps *gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc *
     src, IPin * pin);
 static GstCaps *gst_dshowvideosrc_getcaps_from_enum_mediatypes (GstDshowVideoSrc *
     src, IPin * pin);
-static gboolean gst_dshowvideosrc_push_buffer (byte * buffer, long size,
-    gpointer src_object, UINT64 start, UINT64 stop);
+static gboolean gst_dshowvideosrc_push_buffer (guint8 * buffer, guint size,
+    gpointer src_object, GstClockTime duration);
 
 static void
 gst_dshowvideosrc_init_interfaces (GType type)
@@ -1005,11 +1005,11 @@ gst_dshowvideosrc_getcaps_from_enum_mediatypes (GstDshowVideoSrc * src, IPin * p
 }
 
 static gboolean
-gst_dshowvideosrc_push_buffer (byte * buffer, long size, gpointer src_object,
-    UINT64 start, UINT64 stop)
+gst_dshowvideosrc_push_buffer (guint8 * buffer, guint size, gpointer src_object,
+    GstClockTime duration)
 {
   GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (src_object);
-  GstBuffer *buf;
+  GstBuffer *buf = NULL;
   IPin *pPin = NULL;
   HRESULT hres = S_FALSE;
   AM_MEDIA_TYPE *pMediaType = NULL;
@@ -1022,9 +1022,13 @@ gst_dshowvideosrc_push_buffer (byte * buffer, long size, gpointer src_object,
   buf = gst_buffer_new_and_alloc (size);
 
   GST_BUFFER_SIZE (buf) = size;
-  GST_BUFFER_TIMESTAMP (buf) = gst_clock_get_time (GST_ELEMENT (src)->clock);
-  GST_BUFFER_TIMESTAMP (buf) -= GST_ELEMENT (src)->base_time;
-  GST_BUFFER_DURATION (buf) = stop - start;
+
+  GstClock *clock = gst_element_get_clock (GST_ELEMENT (src));
+  GST_BUFFER_TIMESTAMP (buf) =
+    GST_CLOCK_DIFF (gst_element_get_base_time (GST_ELEMENT (src)), gst_clock_get_time (clock));
+  gst_object_unref (clock);
+
+  GST_BUFFER_DURATION (buf) = duration;
 
   if (src->is_rgb) {
     /* FOR RGB directshow decoder will return bottom-up BITMAP
@@ -1044,7 +1048,7 @@ gst_dshowvideosrc_push_buffer (byte * buffer, long size, gpointer src_object,
 
   GST_DEBUG ("push_buffer => pts %" GST_TIME_FORMAT "duration %"
       GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
-      GST_TIME_ARGS (stop - start));
+      GST_TIME_ARGS (duration));
 
   /* the negotiate() method already set caps on the source pad */
   gst_buffer_set_caps (buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)));