[FFmpeg-devel] [PATCH] Document the SAP muxer

[Stefano Sabatini]

On date Saturday 2010-10-09 20:58:47 +0300, Martin Storsj? encoded:
[...]
> diff --git a/doc/protocols.texi b/doc/protocols.texi
> index 88aedb9..0bb7312 100644
> --- a/doc/protocols.texi
> +++ b/doc/protocols.texi
> @@ -287,6 +287,54 @@ To send a stream in realtime to a RTSP server, for others to watch:
>  ffmpeg -re -i @var{input} -f rtsp -muxdelay 0.1 rtsp://server/live.sdp
>  @end example
>  
> + at section sap
> +
> +Session Announcement Protocol (RFC 2974). This is not technically a
> +protocol handler in libavformat, it is a muxer.
> +It is used for signalling of RTP streams, by announcing the SDP for the
> +streams regularly on a separate port.
> +
> +The syntax for a SAP url given to the muxer is:
> + at example
> +sap://@var{destination}[:@var{port}][?@var{options}]
> + at end example
> +
> +The RTP packets are sent to @var{destination} on port @var{port},
> +or to port 5004 if no port is specified.
> + at var{options} is a @code{&}-separated list. The following options
> +are supported:
> +
> + at table @option
> +
> + at item announce_addr=@var{address}
> +Specify the destination IP address for sending the announcements to.
> +If omitted, the announcements are sent to the commonly used SAP
> +announcement multicast address 224.2.127.254 (sap.mcast.net), or
> +ff0e::2:7ffe if @var{destination} is an IPv6 address.
> +
> + at item announce_port=@var{port}
> +Specify the port to send the announcements on, defaults to
> +9875 if not specified.
> +
> + at item ttl=@var{ttl}
> +Specify the time to live value for the announcements and RTP packets,
> +defaults to 255.
> +
> + at item same_port=@var{0|1}
> +If set to 1, send all RTP streams on the same port pair. If zero (the
> +default), all streams are sent on unique ports, with each stream on a
> +port 2 numbers higher than the previous.
> +VLC/Live555 requires this to be set to 1, to be able to receive the stream.
> + at end table
> +
> +Example command lines follow:

Nit /s/:/./

Rest of the patch looks good to me.
-- 
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