[gstreamer-bugs] [Bug 583047] [jpegdec] optimise buffer handling when parsing frames

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=583047
  GStreamer | gst-plugins-good | git

--- Comment #9 from Arnout Vandecappelle <arnout at mind.be> 2010-05-27 14:35:47 UTC ---
(In reply to comment #8)
> though one copy is likely (and unavoidably?) still present at _take time.

 Not unavoidable.  libjpeg is optimized for scatter-gather operation.  It
processes all the available data, and calls fill_input_buffer when it needs
more data.  I'm not entirely sure what the interface is, but I think you can
just update jsrc.pub.next_input_byte and jsrc.pub.bytes_in_buffer from within
that function.  If you use gst_adapter_available_fast(), you can make sure the
_peek never does any copying.

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.