Use inline assembly for x86_64 speed/accuracy.
Sacrifice speed for accuracy on other processors.
Continue to use original implementation for ARM on Windows.
The macro PRAGMA_WARN_STRINGOP_OVERFLOW was introduced to suppress a
warning -Wstringop-overflow caused by a macro da_push_back_new calling
darray_push_back_new.
Extract the function in the macro to avoid the warning.
This will also enables checking the type check of the returned pointer.
When an effect file is not found while initializing graphics, only one
line error below is logged. To clarify the reason why the initialization
was failed, also log when the file was not found.
Failed to initialize video. Your GPU may not be supported, or your
graphics drivers may need to be updated.
This code assumed that no one would be racing after we stopped the input
thread, however the obs output thread also races and can free the inputs
during disconnect before we finish closing the video mix.
Instead keep the locks around after stop and use them during close to
avoid races.
Fixes crashes when stopping virtual webcam on linux.
Co-authored-by: Norihiro Kamae <norihiro@nagater.net>
This is useful for formats such as 32-bit float PCM which providers
greater flexibility in editing by retaining information that would
otherwise be clipped.
Placeholder sources are created when a plugin providing a source type is
unavailable. Since they're not marked as having audio any audio track
settings for them get lost. With this change we retain mixer information
if the source owns its id to avoid that.
Since 65eb3c0815 we tried to get as close
a sync between audio and video tracks as we could before starting to
send frames to the output.
But in be717dbb2c when multi-track audio
was considered for synchronization it continued to try and line ALL
audio packets up with one video packet. While audio and video packets
are similar size this will work out. But once video packets duration is
smaller than 1/2 audio packet duration this may fail forever. In
practice with AAC's 20-23ms frame duration we can often get tracks
producing frames 5-10ms out of phase. For 60fps video this mostly fine
as 16ms frame duration will cover the gap, but for framerates as low as
100 its possible to fail to synchronize. In practice this is ~50%
for 6 audio tracks and 120fps video on my system, or 100% at 240fps.
The Pulseaudio implementation of audio monitoring was actually listing audio sources.
This change corrects that, so all possible outputs are available.
When creating a group, a newly allocated group `sub_scene` is released
just after calling `obs_scene_add_internal`.
If another thread released the scene-item, which is the sub_scene,
use-after-free might happen.
