[Bug 662291] basetransform: cache transformed caps where appropriate

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=662291
  GStreamer | gstreamer (core) | unspecified

Vincent Penquerc'h <vincent.penquerch> changed:

           What    |Removed                     |Added
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 Attachment #199521|0                           |1
        is obsolete|                            |

--- Comment #4 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2011-10-20 14:36:27 UTC ---
Created an attachment (id=199532)
 View: https://bugzilla.gnome.org/attachment.cgi?id=199532
 Review: https://bugzilla.gnome.org/review?bug=662291&attachment=199532

basetransform: cache transformed caps where appropriate

Speeds up negotiation a fair bit on a contrived pipeline
with a dozen colorspace conversions.

Hopefully clears out the cache every time it ought to.

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