So far we've been treating format info on a per-connection basis,
but now that a single connection is capable of hosting multiple
streams, and each stream might negotiate a different format, it
is necessary to move format info to each stream individually.
Sorry, this is a painful commit to review :(
Until now, the only consumer of the PipeWire code is the screen
cast portal code. This portal code only ever has one PipeWire
connection, and one PipeWire stream, every time a monitor or a
window is selected. This is reflected on obs_pipewire, which only
handles a single stream for any given connection.
For cameras and audio, however, a single PipeWire connection can
and most likely always will provide multiple streams. For example,
computers with multiple webcams will have one PipeWire connection
reporting multiple PipeWire nodes, one node for each camera.
This commit breaks this one-stream-per-connection assumption, and
makes obs_pipewire_connect_stream() return an independent object
(obs_pipewire_stream) that represents a single stream.
The screencast portal code continues to only ever have one connection
and one stream.
When #5169 implemented deferred encoder updates, it did not account for
the case when the encoder hadn't started yet. This means the encoder would
start and then immediately call update with the same settings it was
started with, which in the case of some hardware encoders would trigger
a reconfiguration request to the driver.
- Set standard to c++17 (Cpp11 is an alias for "Latest")
- Update comments to clang-format 13
- Uncomment options that have previously been commented out due to not
being available at the time the file was written.
Linux QSV drivers have varying capabilities depending on if the
free/non-free Intel drivers are installed. This means we cannot safely
expose QSV in simple mode as users may be unable stream without changing
to advanced mode.
This moves the existing adapter checking into the platform layer and
moves the Windows implementation to its platform implementation and adds
a Linux implementation based on directly querying VA-API.
Unlike Windows, this check takes ~1ms so we have no need to spin out
another thread to perform the work. This also fixes up some of the CPP/C
mixing going on in common_utils."h" to allow us to call common functions
from C files.
Reset frame_rate_divisor_counter to 0 on encoder shutdown.
After starting and stopping a GPU encoder session, obs_encoder_shutdown
would set frame_rate_divisor_counter to 1. When the next GPU encoder
session was started, in libobs/obs-video-gpu-encode.c, gpu_encode_thread
would set skip to this value (1), and increment
frame_rate_divisor_counter to 2. This causes the next check to fail, as
frame_rate_divisor is 1 by default (2 == 1 is false), so
frame_rate_divisor_counter retains its value. Since skip is non-zero,
the next check, if(skip), passes, and skip to the next loop iteration.
This will continue forever, because frame_rate_divisor_counter will
continue to increment, so it will never hold the same value as
frame_rate_divisor. This means that send_off_encoder_packet is never
called, so the muxer never receives encoded packets.
To the end-user, this manifests as their second encoder session being
impossible to stop. They then have to force quit OBS and the
obs-ffmpeg-mux process. This change prevents that from occurring and
allows multiple back-to-back GPU encoder sessions to be completed.
The CMake 3.0 path used the old syntax for logging if the module was
disabled. Update this to use target_disable to match the syntax in other
CMake 3.0 paths.
The macros `YOUTUBE_ENABLED`, `RESTREAM_ENABLED`, and `TWITCH_ENABLED`
are not defined when the associated features are not enabled.
When the code was originally implemented, there were definitions to set
`0` if the feature is disabled. However a later commit 349372b removes
the definition. Now, the use of `#ifdef` is better than just `#if`.
Instead of actually removing the file, simply rename it to the .bak
version which OBS ignores in most cases. That allows users to recover
accidentally deleted collections more easily, while only taking up a
few kilobytes of disk space at most.
Default ffmpeg initial buffer fullness (75%) is too low
and results in significantly lower video quality on AMD cards.
Changing it to 100% fixes the quality and also matches what
AMF encoder is doing.
