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The amount of time to wait before streaming the first video frame, to create a buffer that can help ensure smooth playback.
Larger buffers help produce smooth video when there are variations in analysis speed, but also increase the delay before frames are streamed. With a shorter buffer, video playback might appear to speed up or slow down due to variations in the time required to analyze each frame.
The value of this parameter is a time duration. Specify the duration in the following format:
1days 2hours 3minutes 4seconds 500milliseconds 600microseconds
You can omit any of the individual durations when they are not required:
You can also shorten the string by abbreviating the units to their first letter (milliseconds abbreviates to ms, microseconds to us):
The following are all equivalent: