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.
