[Bug 667221] dvdspu: some optimizations

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=667221
  GStreamer | gst-plugins-bad | git master

Jan Schmidt <thaytan> changed:

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--- Comment #3 from Jan Schmidt <thaytan at noraisin.net> 2015-02-07 19:18:44 UTC ---
Created an attachment (id=296347)
 View: https://bugzilla.gnome.org/attachment.cgi?id=296347
 Review: https://bugzilla.gnome.org/review?bug=667221&attachment=296347

dvdspu: some optimizations

Detect invisible pixels, and skip gstspu_vobsub_blend_comp_buffers()
when there are only invisible pixels.  This significantly reduces the
CPU load in cases of DVDs which don't use the clip_rect to exclude
processing for parts of the screen where the video is visible.

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