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.
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.
Closesjp9000/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.
Closesjp9000/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=336Closesjp9000/obs-studio#481
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).
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.
RemoveScene would always remove the currently selected item from the
scenes list, even if that item didn't reference the actual scene being
removed; finding the proper item via its OBSRef fixes this issue.
How to reproduce the original issue:
Create two scenes "a" and "b", set a hotkey for switching to scene "a",
select scene "b" and press the remove scene button, then while the
confirmation dialog is up press the hotkey while the UI is out of focus.
The active scene should have switched to "a", while the dialog still
displays "b" as its target; now confirm the removal of "b". Note how "a"
was removed from the scenes list instead.
Reported at https://obsproject.com/mantis/view.php?id=333
This reverts commit 35b2ce565a.
There is far too much potential for issues to occur if the first-time
start creates a display capture by default on linux and windows.
Display capture on windows laptops will not be guaranteed to capture
properly, leaving the user with a blank screen. Display capture on
linux downloads its image off the graphics processor, so it's quite
inefficient to have on by default.
The new 'offset' value was not being passed back to the caller, which
caused the caller to continue to use the old value and thus would cause
an invalid hook and crash.
The call to CoInitializeEx in the win-mf module caused some sort of
conflict with the decklink module, causing the decklink module to crash
on exit. Instead, let libobs handle COM initialization.
If the GL capture part of the game capture hook fails to initialized for
whatever reason, it will go in to an infinite reacquire loop. If it
fails to initialize shared texture capture, try shared memory capture
instead.
When an encoder has been removed (such as CoreAudio) and the audio
bitrates currently configured no longer are available to the current
audio encoders anymore, it would cause GetAACEncoderForBitrate to return
false with no encoder available.
To fix the issue, instead just choose the closest bitrate relative to
the current bitrate (rounded up).
Using gzdopen will not work properly if the C standard library used to
get the descriptor is not the same library as the one that was compiled
with zlib. When this is the case, it causes zlib to fail to write a
file, and would report a C standard library error. Use gzopen and
gzopen_w instead to ensure that the file is opened and closed by zlib
itself, ensuring that zlib and the libobs do not have to share the C
standard library between each other.
After some more testing, utvideo not only gives better encoding
performance, but also better compression and better decoding
performance. It's pretty much superior all around over huffyuv.
So certain high-profile individuals were complaining that it was
difficult to configure recording settings for quality in OBS. So, I
decided to add a very easy-to-use auto-configuration for high quality
encoding -- including lossless encoding. This feature will
automatically configure ideal recording settings based upon a specified
quality level.
Recording quality presets added to simple output:
- Same as stream: Copies the encoded streaming data with no extra usage
hit.
- High quality: uses a higher CRF value (starting at 23) if using x264.
- Indistinguishable quality: uses a low CRF value (starting at 16) if
using x264.
- Lossless will spawn an FFmpeg output that uses huffyuv encoding. If a
user tries to select lossless, they will be warned both via a dialog
prompt and a warning message in the settings window to ensure they
understand that it requires tremendous amounts of free space. It will
always use the AVI file format.
Extra Notes:
- When High/Indistinguishable quality is set, it will allow you to
select the recording encoder. Currently, it just allows you to select
x264 (at either veryfast or ultrafast). Later on, it'll be useful to
be able to set up pre-configured presets for hardware encoders once
more are implemented and tested.
- I decided to allow the use of x264 at both veryfast or ultrafast
presets. The reasoning is two-fold:
1.) ultrafast is perfectly viable even for near indistinguishable
quality as long as it has the appropriate CRF value. It's nice if you
want to record but would like to or need to reduce the impact of
encoding on the CPU. It will automatically compensate for the preset at
the cost of larger file size.
2.) It was suggested to just always use ultrafast, but ultrafast
requires 2-4x as much disk space for the same CRF (most likely due to
x264 compensating for the preset). Providing veryfast is important if
you really want to reduce file size and/or reduce blocking at lower
quality levels.
- When a recording preset is used, a secondary audio encoder is also
spawned at 192 bitrate to ensure high quality audio. I chose 192
because that's the limit of the media foundation aac encoder on
windows, which I want to make sure is used if available due to its
high performance.
- The CRF calculation is based upon resolution, quality, and whether
it's set to ultrafast. First, quality sets the base CRF, 23 for
"good" quality, 16 for "very high" quality. If set to ultrafast,
it'll subtract 2 points from the CRF value to help compensate. Lower
resolutions will also lower the CRF value to help improve higher
details with a smaller pixel ratio.
