Vision Path: Difference between revisions

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[[File:Analogue.jpg|thumb|300px|right|A (rough) diagram of the current vision path]]
==General==
YSTV's cable jungle is 'maintained' regularly, usually before a show when something needs changing in a hurry. Currently, the path is incomplete, as we are waiting upon PCB manufacture for a new set of routers.The latest up to date written copy of the path can be found at <i>Docs>tech>visionpath</i>. Monitor rack connections vary rapidly according to requirements, and so are not here - sorry, but they will only add to the confusion!


==Colour scheme==
{{outofdate}}
In order to attempt to make the path more readable, the vision path is slowly being recoloured, in the hope that someone can just look at it (with a key) and state "this must be a camera", or "this is network critical". This also has the unexpected side effect of the vision path now looking comparatively neat, almost a work of art. Anyway, the scheme has been divided into main regions: Servers, Network, Routing, Cameras, Monitor feeds. Of each colour cable, try to cycle the boot colours on a per cable basis (not different per end!). This will make for quicker visual identification of cables (good before a show!).


Colour Scheme Allocations:
Following an upgrade in October 2013, YSTV went fully HD and updated it's video routing system both in studio and for OBs. The current system is as follows.  
* Red >> Network side cabling.
** Read means don't touch it unless you have to. Anything red is either critical control for the NetMux, or has come from the netmux, but is not going back into the main routing spaghetti.
* Blue >> Server Outputs.
** Vidserv, clock, inform, VTServ.
* Green >> Other inputs.
** This will be cameras.
* White >> Feed to monitors.
** Isn't it annoying when you can't spot where that monitor feed is coming from?
* Black >> Routing Mush.
** It's going to get fiddled with, and is the majority of the path so it might as well be the most common colour.
* Purple >> RS-XX2 data.
** It's different, and we have 300m spare!
* Orange >> Computer Network data.
** Easy to spot the odd one out now!


[[Category:Technical]]
== Equipment ==
=== Sources ===
 
There are a number of sources that feed video into the video path:
 
* [[Panasonic AG-AC90| Camera's]]
* [[Computing:Graphics PC | Graphics PC]] is fed directly into the ATEM via HDMI using [[Caspar|Caspar]]
* [[Computing:Video Server | Video Playout Server]]
* [[Computing:Ystvstrmre | Stream Reciever]]
* [[Patch Panels|Patching panels]] if the vision stream is passing through the studio and control room.
 
=== Mixing ===
 
* [[ATEM 1 M/E | The Switcher]]
* [[Micro Videohub | The Hub]]
 
Which of the 2 YSTV ATEMs is used on any given production depends on which of the [[OB units|OB Units]] is used on that production. (see information about the ATEMS both on the ATEM page and the OB units pages).
 
The videohub also is only in one unit but can be re-racked if necessary.
 
== Stream path ==
The streaming system from the OB unit output is bounced through several places before it makes it's way to the website. This will be the same for a studio show since the practice is now to use OB units in place of a permanently racked studio system. The system runs as follows.
 
* [[OB units|OB Unit]] - Whichever is being used.
* rtmp://ystvstrm7.york.ac.uk/live/stream1 - The stream is sent to the STRM7 VM server
* [[Transcode Machines|transcode0]] - Our [[Transcode Machines|transcode machines]] which produce the variable formats that the stream can be viewed in.
* rtmp://ystvstrm7.york.ac.uk/stream/stream1_(1080/720/480/360) - The addresses for the various produced video qualities of the stream 
* http://ystv.co.uk/watch/live - the repository address for the final stream where it's hosted on our site.
 
 
[[Category:Vision Path]]

Latest revision as of 11:10, 16 November 2022

tick.png HD OK
cancel.png Information on this page may be out of date or apply to old equipment. Use with caution.

Following an upgrade in October 2013, YSTV went fully HD and updated it's video routing system both in studio and for OBs. The current system is as follows.

Equipment

Sources

There are a number of sources that feed video into the video path:

Mixing

Which of the 2 YSTV ATEMs is used on any given production depends on which of the OB Units is used on that production. (see information about the ATEMS both on the ATEM page and the OB units pages).

The videohub also is only in one unit but can be re-racked if necessary.

Stream path

The streaming system from the OB unit output is bounced through several places before it makes it's way to the website. This will be the same for a studio show since the practice is now to use OB units in place of a permanently racked studio system. The system runs as follows.

  • OB Unit - Whichever is being used.
  • rtmp://ystvstrm7.york.ac.uk/live/stream1 - The stream is sent to the STRM7 VM server
  • transcode0 - Our transcode machines which produce the variable formats that the stream can be viewed in.
  • rtmp://ystvstrm7.york.ac.uk/stream/stream1_(1080/720/480/360) - The addresses for the various produced video qualities of the stream
  • http://ystv.co.uk/watch/live - the repository address for the final stream where it's hosted on our site.
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