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diff --git a/doc/nut.texi b/doc/nut.texi index 39a22ff3ea..042c88a3ab 100644 --- a/doc/nut.texi +++ b/doc/nut.texi @@ -17,6 +17,27 @@ subtitle and user-defined streams in a simple, yet efficient, way. It was created by a group of FFmpeg and MPlayer developers in 2003 and was finalized in 2008. +@chapter Modes +NUT has some variants signaled by using the flags field in its main header. + +@multitable @columnfractions .4 .4 +@item BROADCAST @tab Extend the syncpoint to report the sender wallclock +@item PIPE @tab Omit completely the syncpoint +@end multitable + +@section BROADCAST + +The BROADCAST variant provides a secondary time reference to facilitate +detecting endpoint latency and network delays. +It assumes all the endpoint clocks are syncronized. +To be used in real-time scenarios. + +@section PIPE + +The PIPE variant assumes NUT is used as non-seekable intermediate container, +by not using syncpoint removes unneeded overhead and reduces the overall +memory usage. + @chapter Container-specific codec tags @section Generic raw YUVA formats |