Adds frame time multiple based timeout option, instead of the hardcoded
1 second timeout.
Adds optional automatic device stream reset when the device times out.
Helps with devices that "lock up" or "freeze", for example Magewell and
Elgato USB HDMI capture devices.
The automatic reset is by default off and optional. Turning it on can
cause issues for devices that work but drop a lot of frames.
This commit adds a basic check to see if the v4l2 stream requires a
restart. This is primarly implemented on the basis of the fact that
the options requiring a restart have values stored in the v4l2_data
structure. A restart is only needed if any of the values have changed
since the last update.
Add a source property to enable buffering of frames, which is enabled by
default. This replaces the old "Use system timing" option by setting the
unbuffered source flag instead of using different timestamps.
While similar in intentions to the old option, this method should reduce
latency even more.
Due to potential driver issues with certain devices, the timestamps are
not always reliable. This option allows of using the time in which the
frame was received as a timestamp instead.
This reverts commit cd306d975a5711e6c9bffe9943ba6e78d346828b.
This removes the 'unbuffered' property for the time being. There should
be a better way of handling this, such as using system timestamps.
Also, the obs_source_frame::flags member needs to be removed and
replaced with something a bit more ideal.
This allows the user to select whether to use unbuffered video or not.
Unbuffered video cause the video frames to play back as soon as they're
received, rather than be buffered and attempt to play them back
according to the timestamp value of each frame.
