Fixes several possible crash issues that might occur on Intel-based Macs
and older macOS versions:
On modern macOS versions (13+) allocated memory is zero-allocated by
default which makes NULL pointer checks work correctly after allocation.
On older macOS versions this is not the case, so the OBSAVCaptureInfo
struct needs to be zero-allocated to ensure the guards in the tick and
render functions bail out correctly.
On Intel-based Macs and/or older macOS versions passing a reference to
the OBSAVCapture instance inside the OBSAVCapture struct can lead to a
crash because of a possible circular reference that cannot be resolved
at runtime.
Passing only a reference of the OBSAVCapture to libobs and incrementing
the retain count at source creation (decrementing in when the source is
destroyed) avoids this issue entirely.
The uninit function prematurely released the memory allocated for the
channel map setting, which exists in the scope of source life cycle
(compared to channel names which are valid during the life cycle of a
configured device).
Splitting up the clean-up for both (memory for channel names is
released when the device is uninitialized, memory for channel map
setting is released when the source is removed) ensures that the memory
is released but pointers don't become unexpectedly invalid.
OBS handles up to 8 channels of audio, which requires the CoreAudio
input callback to omit/ignore any audio data from channels above that
count and also report a maximum amount of 8 channels to match the
speaker setup given to swresample by libobs.
Some devices do not support all color formats at all resolutions, but
the capture card source automatically uses an available color format
and compares it against the available format for a specific resolution.
Without being able to change this format, some resolutions do not
work as CMIO will not be able to find a compatible format. Thus the
color format needs to be manually selected for capture card sources
as well.
Previously, we always assumed we could push more frames before an encoded
packet would be available. Actually, we can get EAGAIN when the
frame queue is full and before any encoded packets have been completed.
Instead, attempt to read packets more often as the worst that can
happen is we get EAGAIN again.
After adding proper adapter enumeration the linux code ends up entering
the texture encoding paths, but these paths are not correctly
implemented on linux yet.
fixes#10221
Frame rate should be defined before AMF encoder initialization,
because this information is used for setting vui_time_scale in SPS.
If frame rate isn't defined before initialization,
then AMF encoder set default frame rate into VUI header (30 fps).
This commit also modifies build-aux to update libdatachannel.
This commit also modifies obs-webrtc to avoid a compiler error.
Notable changes:
* deps.ffmpeg: Update libdatachannel to 0.20.1
* deps.macos: Remove Carla
* deps.macos: Add uthash to macOS deps
* deps.windows: Remove Carla
* deps.windows: Add uthash to Windows deps
To avoid a compiler error, this commit also bumps the configured NVENC
version to match the updated version in the deps package.
Notable changes:
* deps.ffmpeg: Update zlib to 1.3
* deps.ffmpeg: Update SVT-AV1 to 1.8.0
* deps.ffmpeg: Update aom to 3.8.0
* deps.ffmpeg: Update libsrt to 1.5.3
* deps.ffmpeg: Update nv-codec-headers to 12.1.14.0
* deps.ffmpeg: Update AMF to 1.4.32
* deps.ffmpeg: Update FFmpeg to 6.1
* deps.macos: Update LuaJIT to 2.1 c525bcb902
* deps.macos: Update FreeType to 2.13.2
* deps.macos: Update Asio to 1.29.0
* deps.macos: Update nlohmann JSON to 3.11.3
* deps.macos: Update Sparkle to 2.5.2
* deps.macos: Update Syphon Framework to 5.0 39e31383ff
* deps.windows: Update FreeType to 2.13.2
* deps.windows: Update curl to 8.5.0
* deps.windows: Update LuaJIT to 2.1 c525bcb902
* deps.windows: Update Asio to 1.29.0
* deps.windows: Update nlohmann JSON to 3.11.3
* deps.windows: Update VPL to v2.10.1
* deps.qt: Update Qt6 to 6.6.1 for Windows
* deps.qt: Update Qt6 to 6.6.1 for macOS
If a user sets both AdaptiveMiniGOP=true and EnablePreAnalysis=true
in the AMF/FFmpeg options field, AMF will adaptively insert
B-pictures, and no longer uses the fixed B pattern.
For a fixed B-frames pattern, it is expected that increasing B-frames
can cause a quality drop for certain content such as with high motion.
AdaptiveMiniGOP is recommended when using B-frames to improve the
quality in such cases. AdaptiveMiniGOP is dependent on PreAnalysis
which means that trying to enable it without having PreAnalysis turned
ON will have no negative effect (AdaptiveMiniGOP won't be enabled).
