[Bug 735660] Patch: fix new v4l2 code not working with certain devices

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=735660
  GStreamer | gst-plugins-good | 1.4.1

--- Comment #3 from Hans de Goede <jwrdegoede at fedoraproject.org> 2014-08-29 11:32:57 UTC ---
Quick note on the 3th patch, I just realized that it may be better in the probe
path to first try with 0 buffers, and only if that fails try again with 1
buffer. Then we save a request + free on devices where the driver does support
request_bufs with a count of 0, and we can drop the free (as that won't work
anyways on devices which don't accept count == 0).

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