separate the two semantics of querying a port's status with a NULL stream;

before, NULL could mean two things: no stream at all or a stream that does not
want to be addressed; now the latter is represented by the new XINE_ANON_STREAM
resulting changes:
* the status() functions now behave differently for NULL and XINE_ANON_STREAM
  (as the commentary always implied, but this was not the case, so post
  plugin rewiring went wrong, because it relies on the status() function)
* the NULL_STREAM defines in audio_out and video_out are obsolete
* update the function comments in the headers
* update the post plugin rewire functions to use the status() functions to
  check, if the old port was opened and handle the new one accordingly;
  this makes open_count obsolete
* change all post plugins accordingly (mostly using XINE_ANON_STREAM instead
  of NULL)
additional change:
* the status() function of audio port now returns the bits/rate/mode values
  of the input and not the output; this is more likely to be what a post plugin
  wants
* the reimplementation of status() in the upmix plugin is obsolete

CVS patchset: 6603
CVS date: 2004/05/29 14:45:25

1 files changed, 2 insertions, 5 deletions

diff --git a/src/post/deinterlace/xine_plugin.c b/src/post/deinterlace/xine_plugin.c
index f44a7a213..21ffd0634 100644
--- a/src/post/deinterlace/xine_plugin.c
+++ b/src/post/deinterlace/xine_plugin.c
@@ -17,7 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: xine_plugin.c,v 1.31 2004/04/17 19:54:31 mroi Exp $
+ * $Id: xine_plugin.c,v 1.32 2004/05/29 14:45:25 mroi Exp $
  *
  * advanced video deinterlacer plugin
  * Jun/2003 by Miguel Freitas
@@ -468,10 +468,7 @@ static void deinterlace_open(xine_video_port_t *port_gen, xine_stream_t *stream)
   
   _x_post_rewire(&this->post);
   _x_post_inc_usage(port);
-  if (stream)
-    port->stream = stream;
-  else
-    port->stream = POST_NULL_STREAM;
+  port->stream = stream;
   port->original_port->open(port->original_port, stream);
   port->original_port->set_property(port->original_port, 
                                     XINE_PARAM_VO_DEINTERLACE,