avoid attempting mac-discovery for internet addresses
Don't display blank SMB workgroups.
FIX: avoid waiting forever on a locked CPluginDirectory while exiting
FIX: Consistenly look for fonts in special//home, then special://xbmc
Adds transcoding of multichannel audio to AC3 for the CoreAudioEngine.

Changes CoreAudioAE::MakeStream to detect if transcoding is possible and needed. The
transcoding state is passed to OpenCoreAudio where is plays a part in
the setup of the object. Mostly, transcode behaves like passthrough
here.

The actual transcoding happens in CoreAudioAEStream, were an
AEEncoderFFmpeg is instantiated and used if transcosing is called for.

The trickiest bit is the addition of a buffer for incoming audio that
needs to be encoded. The encoder needs to work in specific block sizes,
and the incoming stream is not always handed to us in appropriate chunks
so we need to buffer it up so we can process it. This required a little
fiddling with the delays to make sure sync was kept tight.
Sort buttons depend directly on available sort methods
Implement seek for CDDA
Python: Add a DelayedCallGuard to xbmc.executeJSONRPC.

Avoids locking other python threads running on the same process space as XBMC, since executeJSONRPC may trigger activity on them.
fixed bug with arial.ttf
FIX: [stagefright] ignore frames with no valid pts
[Fix] Event server code for remote mouse with event client protocol
[rendercapture] Fix passthrough rendercapture interface

The RenderCapture function doesn't behave correctly for passthough video renderers,
and in fact segfaults on Pi when setting a bookmark.

There is no need to do a glReadPixels to get a video snapshot in the passthrough case,
so provide a shortcut.
[rbp] Support grabbing just the video layer through rendercapture

As the bookmark snapshot doesn't want the OSD (and neither does boblight)
allow video, or video + GUI to be selectable.

While we're there, making the GPU do the red/blue swap and stride packing saves some cpu.

Requires updated firmware
[rbp/omxplayer] Avoid too many calls to GPU

We currently read the media time once per packet received from demuxer to determine gpu underrun.
We've found that TrueHD audio in particular produces ~1000 packets per second (whether it is the active track or not).
The cost of reading media time (from gpu) is high enough that 1000 calls per second makes us fail to keep up.
So, cache the media time, and only read it at most 50 times per second.
[rbp/omxplayer] Avoid audio codec when in passthrough modes

There is no need to open the ffmpeg audio codec when in passthrough mode.
Also there is no need to close/open the OMXAudio component when parameters (like number of channels) change in passthough.
This avoids an unpleasant stutter
[3d] fixed wrong size of ass subtitles under sbs/tab 3d mode.
[addons] add Gotham repositoy
fix #3166: use URIUtils::AddFileToFolder
fixed: scraper fallback logic

code ended up selecting the default album scraper for artists
Merge pull request #3203 from taxigps/fonts

fixed bug with arial.ttf