[pitivi] SingleDecodeBin: Set the uri source block size to 512kbytes.

[Edward Hervey <edwardrv src gnome org>]

commit e574b90f0e5bf1f167652c08ed43fed8d9e691b4
Author: Edward Hervey <bilboed bilboed com>
Date:   Thu Sep 3 19:44:09 2009 +0200

    SingleDecodeBin: Set the uri source block size to 512kbytes.
    
    This will only affect sources used in push-based mode, like when used in combination
    with jpegdec. This speeds up considerably decoding/usage of jpeg images.

 pitivi/elements/singledecodebin.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/elements/singledecodebin.py b/pitivi/elements/singledecodebin.py
index 2cdc36c..5399bca 100644
--- a/pitivi/elements/singledecodebin.py
+++ b/pitivi/elements/singledecodebin.py
@@ -71,6 +71,9 @@ class SingleDecodeBin(gst.Bin):
             self.log("created urisrc %s / %r" % (self.urisrc.get_name(),
                                                  self.urisrc))
             self.add(self.urisrc)
+            # Set the blocksize to 512kbytes, this will only matter for push-based sources
+            if hasattr(self.urisrc.props, "blocksize"):
+                self.urisrc.props.blocksize = 524288
             self.urisrc.link(self.typefind)
         else:
             self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))