Transition from using popen() to using fork()/dup2()/execl() to provide
a way to read stderr from ffmpeg.
Co-Authored by: PatTheMav <PatTheMav@users.noreply.github.com>
This will allow consumers of obs_pipewire to handle the device
registry themselves. This is not useful for the screencast code
since there's always only one node in the registry, but it will
be used by the camera and audio code to list hardware devices.
MSVC noticed inline is not allowed, and new/delete replacments also
don't belong in a header file. We're also just leaning on
__STDCPP_DEFAULT_NEW_ALIGNMENT__ being 16 for MSVC x64 now.
Makes it so that slideshows can have as many files as desired, and
lazily decodes image data in a separate thread to prevent decoding from
stalling the video thread.
Natively compiled MbedTLS for Windows will use the non-debug platform
library, which will lead to a linker error when building OBS in debug
configuration with MSVC.
Neutralizing the linker directive for Debug builds on Windows
unbreaks the build configuration without the need to ship separate
debug variants of MbedTLS.
To prevent sources from having to take too much extra consideration into
threading, defer the media control functions that directly affect
functionality to the video thread. Getters will still have to take
threading into account, but this should make things much more trivial
for media controls thread-wise.
(Lain note: Context: I noticed that things such as the slide show
require mutexes due to their media controls, and I felt that it was
largely unnecessary and that libobs should mitigate the threading issue
itself and keep it all in the video thread like it should be. Again, the
getters are still going to require *some* consideration into threading
but in terms of threading, for the type of stuff we're doing, querying
state is far more trivial to take into consideration.)
The OBS_SOURCE_CONTROLLABLE_MEDIA flag is required for controllable
media callbacks to be usable. These checks are being added so we can
defer most controllable media callbacks to the video thread.
(Lain note: This is mostly so more (yes more) can be added to this
god-forsaken structure without it getting too messy. In terms of actual
code, I need to be better about writing actual code comments. ...Meaning
that I actually need to start writing code comments.)
This enables audio multi-track support in UI for mpegts streams (srt,
rist ...).
The UI changes were coded though to allow re-use by other protocols.
Signed-off-by: pkv <pkv@obsproject.com>
