Always it is telling us that we can bring Netflix, Yomvi, and other proposals for television in the mobile and, in theory, just that offer us them on television. And this is true, but the quality and the technology that is used in one and another sense is different, and is reduces to the difference that there are between them technologies of OTT and of IPTV.
It is likely that many have thought it, cases such as the Yomvi and Movistar +, that are on the same network of Movistar and are two services, supposedly, “online” why one is pixela and another not?. We can put in the sack when Netflix is pixela – and any other streaming service-, because problems dragged by their disagreements with the operator, but in essence, it has the same conditions as the legacy streaming Canal + service are usual and we have those problems of fall of the quality of the image, the “pixelated”, that does not occur when watching TV with decoder , supposedly connected to the same Internet.
The key of why Yomvi and Netflix are pixela: IPTV vs OTT
These are the two key terms that define the difference of quality we can get if we talk about a service of streaming video or Internet TV. Or what is the same, the reason of why Yomvi and Netflix are pixela.
The OTT, which corresponds to the initials of Over-The-Top, or video streaming is used the majority of the platforms of this type such as the own Yomvi, Netflix, Wuaki, etc. do not have a guaranteed quality already depending on the device that is running and the Internet signal receiving.
For example, Movistar indicates that Yomvi on small screens and mobile operating systems, when we talk about quality SD the bitrate is 600 Kbps, whereas when we talk about large screens (smartTV, consoles) video games, etc. is emitted in HD quality with a bitrate 3Mpbs maximum and progressive scanning system.
Both one and another quality, called “selective streams”, meaning that they are built with Adaptive Smooth Streaming and HLS HTTP Live Stream protocols. These constructed the image with the frames odd discarding pairs, which means that each picture has part of the previous picture and the next. The result, apparently, is similar to the of a decoder IPTV standard, at 25 fps, but does not reach the levels of sharpness and continuity of the image obtained with the decoder.
So what is IPTV?
IPTV which is the technology used for the new services for television operators, that guarantees a specific quality regardless of the connection Internet.
The information that circulates on the channel that book the decoder is only and exclusively for the TV signal, so the desco and TV servers make up a VPN (virtual private network) that is apart of the Internet network, being an independent and separate traffic and transport network.
Why are pixela image on the phone and not that of the TV operators?
As with Netflix, Yomvi uses an Adaptive bitrate depending on the quality of transmission line to ensure the continuity, that not the quality of the image. This bandwidth, negotiates it the server at any time by determining and according to her, has a number of copies of the same content with different qualities, depending on the capacity to serve one or another copy. This reason is also that behind that even though we have the application installed in our SmartTV, so that in mobile, is sometimes pixela.
But this information flows through the same bandwidth of your connection to the Internet, to which we connect with WiFi Mobile. Therefore if we have our busy home network because we are using several devices at the same time to make different things online, the bandwidth is reduced and we lose quality, because there is a space reserved for this service in our connection.
In the case of IPTV, there are differences among copper and ADSL. If we have ADSL, the decoder makes a reserve of 3 Mb of speed maximum we have, i.e., if we get 10 Mb we turn on the disc, and to have only 7 Mbps to navigate. For fiber, the reserve of the flow for the TV service does not diminish the contracted speed. If a client has hired 30 Mb or 300 Mb, this flow is yours for the internet and TV has its own channel apart that manages the decoder with the router. Here is where IPTV technology allows to constantly guarantee a service in HD and independently of the devices you have connected to the Internet or the use you make of them.
The article by what Yomvi or Netflix is pixela in the mobile and TV operators have been published at MovilZona.