New gaussian blur video filter. This currently takes way too much CPU. I'm not sure how it should be optimised. Maybe using floats instead of ints might work (if it can remove the need for a division).

Patch from Paul Corke <paul.corke at datatote dot co do uk). It enables newer ivtv drivers to be used with the pvr input. Plus some additions and fixes from me:code cleanups, fix memoryleaks, coding style and identation fixes.

                      image before sending it to the mosaic.
                    - Add option ("chroma") to force the image chroma
                    - Remove alpha mask code
 * mosaic.c: - Remove bluescreen code
             - Misc cosmetics changes
 * bluescreen.c: New bluescreen filter (mostly cut & paste from mosaic.c)
 * alphamask.c: New alpha mask filter (mostly cut & paste from mosaic_bridge.c)
 * invert.c: don't invert the alpha plane for YUVA images (We also need to
             prevent that for RGBA images ... but that's not really used
             currently)
 * configure.ac, video_filter/Modules.am: add alphamask and bluescreen

* added sanity flags for future darwin releases and potentionally fixed OSX SDK support on Intel-based boxes. needs further testing, which I'll do later on

before they become an endangered species

New erase video filter (to remove logos). Example command line: ./vlc --video-filter "erase{mask=/home/dionoea/images/cone-small.png,x=50,y=50}" --no-audio --color -v -I rc ~/media/redefined-nintendo.mpg

Patch by Bernie Purcell, with two small modifications by thedj.

- Require automake 1.9 to fix some libtool plugin build problems
- Remove useless libs/Makefile

Uses libgcrypt, as we have it in our deps/contrib already for GnuTLS.

This could be used in both "UDP"[1] access and access output plugins,
though they should really be called "RTP" instead nowadays.

Done:
 - AES(-128) Counter Mode key derivation and RTP en-/decryption
 - test vectors for AES-CM
 - NULL cipher (with the *_UNENCRYPTED flags) - untested

To do (missing mandatory features):
 - RTCP en-/decryption
 - HMAC-SHA1 authentication
 - replay attack protection

Also to probably do:
 - integrate with udp access and access output plugins
 - integrate with RTSP server (err, I won't do that myself)
 - support for Transform Carrying ROC for SRTP (RFC4771)
   so we can use it easily for multicast streaming

that are not plugins neither in the core

    - this stuff is highly unfinished; needs much more work and testing
    - don't be surprised if you don't see anything when trying it out, this port is basically a big reminder for me to keep working on it ;-)
    - the access module is probably going to be ported from CoreFoundation-driven C to Cocoa-based Obj-C
    - everything will be 10.4-only, since EyeTV is only available this way as well
    - the plugin to put into EyeTV is compiled in UB-mode by default and incorporates Public Domain code provided by Elgato Systems GmbH

- Warn that WxWidgets is deprecated.
- Fix a few Wx error messages.

  to avoid a conflict with Carbon API)