Meant as a part of solving mantis issue 105 ("Disk space usage monitor
when recording").

From pull request: jp9000/obs-studio#374
Relevant mantis issue: https://obsproject.com/mantis/view.php?id=105

From pull request: jp9000/obs-studio#374

These functions resolve the absolute path from a relative path.

Use explicit UTF-8 byte sequence for the "no-break space" character.

Prevents issues with certain editors, and fixes the following compiler
warning on Visual C++:

warning C4819: The file contains a character that cannot be represented
in the current code page (X). Save the file in Unicode format to prevent
data loss

Use explicit UTF-8 byte sequence for the "no-break space" character.

Prevents issues with certain editors, and fixes the following compiler
warning on Visual C++:

warning C4819: The file contains a character that cannot be represented
in the current code page (X). Save the file in Unicode format to prevent
data loss

Use explicit UTF-8 byte sequence for the "no-break space" character.

Prevents issues with certain editors, and fixes the following compiler
warning on Visual C++:

warning C4819: The file contains a character that cannot be represented
in the current code page (X). Save the file in Unicode format to prevent
data loss

(Jim) For some reason a character outside of the standard ASCII
character set was used in this source file.  "Eight Spoked Asterisk",
Unicode character 0x02733.  Non-ASCII characters should probably not be
used directly in source files due to potential character encoding
issues that can occur depending on the operating system and compiler.

Closes jp9000/obs-studio#485

rtmp-services: Remove unnecessary iNSTAGIB.tv entry

iNSTAGIB.tv and Vaughn Live share the same ingestion system. Having
this entry is therefore unnecessary.

This replaces the name-based detection of the 4K intensity pro, and
allows other devices to be able to use the BGRA pixel format, if the
user so chooses.

It's possible for one signal handler to disconnect another during signal_handler_signal, which could result in crashes when the disconnected signal handler is called with a potentially freed data pointer due to other cleanup.

Detected by Coverity Scan (CID 12876, 12877, 12878, 12879)

Detected by Coverity Scan (CID 12831, 12830)

Another thread could be manipulating the active_log_contexts array while the current thread is trying to read it, resulting in an uninitialized memory crash as the da_push_back call was not protected by the mutex.

Detected by Coverity Scan (CID 12856)

Note: This functionality should probably be considered as a temporary
solution.  Ideally, sources should not be visible on creation until the
user presses "OK" in the initial properties dialog.  Also, the problem
of initial visibility can additionally be solved by implementing the
preview/program functionality.  Once preview/program is implemented the
need for this patch will be negated, and the option should probably be
removed.

Closes jp9000/obs-studio#483

Polls for file changes like the text plugin does.  This is an interim
solution; both the text plugin and image source should use a file
monitoring API, preferably implemented through libobs.

Closes jp9000/obs-studio#482

In case a system authentication prompt is open the actual error code
(via err_get_code) is kIOReturnExclusiveAccess on OSX 10.9; I'm not
100% sure if this makes the "if (!value)" part of the code obsolete,
but that code path shouldn't be triggered under most circumstances
anyway

Fixes https://obsproject.com/mantis/view.php?id=346

When using a text file with the source and the font face is changed, it
would cause it to fail to update the glyphs and text accordingly.  It
would trigger an error jump at line 392 of text-freetype2.c, ultimately
resulting in the text to render garbled after that.

How to reproduce:
Set the source to get text from a file, then just change the font face
(but not the size or anything else).

When updating text from file periodically, newer glyphs that weren't
already cached would not end up being rendered.  This fixes the issue by
calling cache_glyphs after the file has been updated.

How to reproduce the original issue:
Set a text-freetype2 source to load an english-only text file.  Then
overwrite the text in the file with non-english characters.  The
non-english characters will then fail to render.

Reported at https://obsproject.com/mantis/view.php?id=336

Closes jp9000/obs-studio#481

This variable needs to be the same size for both architectures.  size_t
is 8 on 64bit and 4 on 32bit.

Instead of using shell functions to get the windows system directory,
use the kernel32 functions (GetSystemDirectory and
GetSystemWow64Directory).  Reduces a bit of unnecessary overhead.

When the crash text is generated, it's generated with LF line endings
only.  Pasting the crash text in to notepad will result in garbled text
on windows (due to the fact that notepad still to this day has not been
programmed to understand anything other than CRLF).  Instead of using
LF, just use CRLF.

There's no need to refresh the actual module list for the crash handler
until a crash has occurred.  Reduces startup time for this function call
from 400ms to 40ms.

This caches the font list data to a file to minimize load times.  Font
data will be refreshed when any font files are added/removed, based upon
a checksum of the font file names and dates (if available).

Caches the D3D graphics offsets to file for the sake of improving module
load time.  If the D3D/DXGI DLL versions change, the data will be
refreshed.

Reloading symbols after each plugin is causing the load times to
increase a fair bit on some computers, so do it after all plugins are
loaded instead.

Used to get the version of a dynamic link library on windows.

Fixes a bug where config_save could not save the file due to the fact
that it did not store the path of the file as it was supposed to.

Intended as a means of expressing an error occurred (-1) when performing
a seek or getting a position.

On the first call to update the symbol paths, pass the path string to
the SymInitializeW function first if it hasn't been called yet.  If it
has been called, then defer to SymSetSearchPathW and then
SymRefreshModuleList.  This is meant to reduce a needless extra call to
the latter two functions on the first use of the function.

Microphones and other input devices can often have bad or erroneous
timestamps.  Although we handle bad timestamps much better in
obs-studio, there are still lingering issues that can crop up from time
to time with device QPC timestamps that leads to mic data not playing
back properly.  It's best if it be off by default rather than on, which
will now cause it to use system timestamps for input devices by default.
This changes it to the same handling as OBS1 for this case.