Re: Querying stream position/duration with gstmm

[Murray Cumming <murrayc murrayc com>]

On Thu, 2007-12-13 at 10:13 -0500, José Alburquerque wrote:
> Murray Cumming wrote:
> >   bool query_position(Format& format, ClockTime& position)
> >
> > Why the change of type for position? Is that an error in the gstreamer C
> > API?
> >
> >   
> While working on the element query example (GADM 11.1 
> <http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-queryevents.html#section-querying>), 
> I noticed that, although gst_element_query_position() works with a 
> gint64, the C macros used with the position (like GST_TIME_ARGS and 
> GST_FORMAT_TIME in gstclock.h) imply that they are working with a 
> GstClockTime.  Since C++ is strongly typed and C is not, I'm thinking 
> that the developers used gint64 and GstClockTime interchangeably.  In 
> C++ types are more enforced so I thought we might use Gst::ClockTime 
> instead, but this might not be the best thing to do.  What do you think?

Yes, that sounds like a good idea, but could you file a patch for
gstreamer to make their API clearer. That would be one way to be sure.

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