basesink: renderdelay needs to be subtracted in adjust_time()

latency is already sink-latency + render-delay, and here we only
want to deal with the sink-latency.

Fixes #630436

diff --git a/libs/gst/base/gstbasesink.c b/libs/gst/base/gstbasesink.c
index 1e0c3cd..612fecc 100644 (file)
--- a/libs/gst/base/gstbasesink.c
+++ b/libs/gst/base/gstbasesink.c
@@ -2015,7 +2015,7 @@ gst_base_sink_adjust_time (GstBaseSink * basesink, GstClockTime time)
   if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (time)))
     return time;
 
-  time += basesink->priv->latency;
+  time += basesink->priv->latency - basesink->priv->render_delay;
 
   /* apply offset, be carefull for underflows */
   ts_offset = basesink->priv->ts_offset;