- /** Perform one decode pass of the content, which may or may not
- * cause the object to emit some data.
+protected:
+ /** Seek so that the next pass() will yield the next thing
+ * (video/sound frame, subtitle etc.) at or after the requested
+ * time. Pass accurate = true to try harder to get close to
+ * the request. Note that seeking to time t may mean that
+ * the next pass() yields, for example, audio at time t and then
+ * video before it.