libobs: Replace fmaxf with inline comparison.

Doing this in the expression will cause it to execute the function every
time the expression is evaluated, which is needless cycles wasted.
Instead, call wcslen before the loops begin.

If FFmpeg's experimental aac encoder is used, this changes the cutoff
frequency to better values in order to try to help make up for the
inherent lack of encoder quality a bit.  If FFmpeg is compiled to use
another encoder by default, these settings will not be applied.

This allows the 0x* format of hexadecimal integers to be used as config
integers.

This allows opening ini config data from a string.  Before, it was only
possible to load config from a file.

This function simplifies drawing textures for sources in order to help
reduce boilerplate code.  If a source is a custom drawn source, it will
automatically set up the effect to draw the sprite.  If it's not a
custom drawn source, it will simply draw the sprite as per normal.  If
the source uses a specific color matrix, it will also handle that as
well.

This replaces the call to fmaxf with the equivalent inline comparison
which is a bit faster (at least on linux).

Fix creating textures from image data with flipping

When the image data is copied into a texture with flipping set to true
each row has to be copied into the (height - row - 1)th row instead of
the row with the same number. Otherwise it will just create an unflipped
copy.

Fixed 2 minor spelling errors.

XComposite, which is currently our only capture method for windows,
doesn't handle X border width. This works in a lot of cases but anytime
there's a border, a bug occurs where the lower right is clipped.  This
patch has two goals:

1) To position and size the capture texture correctly in accordance to
the border.

2) Adds a configuration option to allow people to toggle it (which in
most cases will simply do nothing) with a default of not including it.

Apparently the audio isn't guaranteed to start up past the first video
frame, so it would trigger that assert (which I'm glad I put in).  I
didn't originally have this happen when I was testing because my audio
buffering was not at the default value and didn't trigger it to occur.
A blunder on my part, and once again a fine example of how you should
never make assumptions about possible code path.

Somehow, there were fonts with empty face names.  Regardless, it's
always important to check your pointers.  Invalid pointers spell doom.

Some applications defer loading OpenGL until after they are visible as
running applications, which causes SyphonInject to not install a server
on the first try (e.g. Minecraft does this)

In some cases the actual application (bundle identifier) would get
overwritten with a wrapper application bundle identifier when the
application names matched (this happened with e.g., Minecraft)

Refer to https://github.com/kc5nra/Sparkle/commit/53cad369538f916ae0f7064231719519166dcbae
for further details

Add latest translations from CrowdIn

Add Doxygen configuration for creating api documentation

linux-v4l2: Handle reconnection in properties

This causes the properties for v4l2 sources to be refreshed when a
device is disconnected/connected.

This adds helper function to disable/enable all properties which is
used in the device selected callback to enable/disable the properties
when the selected device is available/unavailable.

This adds some code to the device enumeration that checks if the
currently selected device is present. In case it is not it will
add the device but disable it.

This moves the calls to the property modified functions so the old
handler can close the device. Otherwise this would cause the device
to be opened multiple times.

This replaces the var in the source struct that was used to print out
the number of captured frames with a local one.

This replaces the var in the source struct that are handling the
timestamp offset with a local one in the capture thread.
This change is mostly to make the code more readable.

This moves the enabling/resetting of the file descriptors inside the
capture loop so it is done before each select call. Why this even worked
before is unclear, but doing it the *right* way seems to reduce latency.