The word streaming can relate to different technologies from different manufacturers in different scenarios and in this short article we are going to take a little tour of what it all means.
When streaming video to the consumer you often see HLS DASH & CMAF mentioned.
HLS is HTTP Live Streaming
Dynamic Adaptive Streaming over HTTP
CMAF Common media application format (MPEG-A #19)
These are all adaptive streaming technologies that chop a stream into chunks and encode at different bitrates to squeak the video down the standards web server port in your domestic router.
The goal is to hide as much of the technology as possible from the consumer so they don't know about MP4 or Transport Stream or bitrates or latency or the fact the ads are coming from a different server on the other side of the planet.
Next up we have General Purpose Video over IP solutions that might also use the consumer oriented protocols but often include extra protocols on a local area network that can be made more permissive about port usage, these might be
RTSP Real Time Streaming Protocol - for control
RTMP Ream Time Messaging Protocol - another control protocol
and Multicast broadcasts to get one signal to multiple destinations without duplication
Next we have a bunch of point to point and mesh streaming tools that are often used in speciality applications where you need better quality or lower latency or different resolutions from a single encode.
Now we start to see more protocols appearing like
HDBaseT - HDMI + USB + Ethernet over IP
IGMP - Internet Group Management Protocol
SDN - software defined networking
And lastly we have protocols that cope with very high bandwidth uncompressed content for pristine productions
NMOS - Networked Media Open Specifications
ST 2022 - High bitrate including uncompressed over IP
ST 2059 - Precision Time Protocol
ST 2110 - component media transport protocols from SMPTE
So there is a lot of streaming out there to meet every need. Not all the solutions
interoperate, so it's worth doing a little homework to make sure the solution fits
your need. Get in touch with KitPlus if you want a quick deep dive on any of these topics
Sebastian Richter, Vice President Media Systems at Rohde &
We are currently in the middle of a transition phase with migration to several new technologies, from the move to IP-based infrastructure and the shift from linear to video-on-demand (VOD).
The question for all of us is how long that transition phase will last; it is going to be faster for some customers then for others – national broadcasters, for example – it will be a slower process.
the next eight years we are going to be in transition, and within that there
will be vastly different rates of change among content owners and media
organisations. As a technology provider the onus is on us to be flexible and
adaptable to meet this wide range of requirements from our customers.
How has the role of Professional Services evolved in recent
years and what vision do you have of the broadcast technology
business? Covering new opportunities that the move to remote
brings, new technologies such as 5G broadcast & the impact on the
broadcast industry, and the challenges for broadcasters and how can they
Now that OTT and VOD have become more mainstream, many
commentators talk about traditional broadcast methods, like terrestrial
transmission, being a thing of the past. With so many new platforms and
non-traditional content services carving out a growing slice of the market, you
can be forgiven for thinking that linear over-the-air television is on its way
out. The reality is that the industry must strike a balance between meeting
consumers’ shifting habits and the business and operational needs of content
One of the major changes
for broadcasters during the pandemic has been the shift towards remote
production; by no means a new phenomenon in an IP environment, yet accelerated
under lockdown to accommodate travel and gathering restrictions. A 2021 report found
that almost 40% of broadcast professionals now employ remote production, up 9%
on the previous year.
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