Re: Mpeg4
 

Thats the progress of video compression.

MPEG2 is the dinosaur of its world, MP4 (x264) gives the same quality for less space.
Even thats out of date now, HEVC (x265) gives the same quality for even less space (up to 50% less in many cases).
The problem with HEVC is that many devices are not capable of decoding it properly yet.

Re: Mpeg4
 

Was looking for this, having noticed a massive speed blast at 3rd step of FF (Tivo, not V6)

Re: Mpeg4
 

It needs the hardware to support it so you can't just download a firmware upgrade for most devices. Unfortunately our smart TV has no upgrade so we're stuck with x264 for playing downloaded content.

The file size reduction is quite impressive.

Re: Mpeg4
 

Compression is getting better and better all the time
https://www.broadbandtvnews.com/2017...perseus-codec/
http://www.bbc.co.uk/news/av/technol...worth-watching

Re: Mpeg4
 

Looks like there are a few issues cropping up on the Community forum.

Some VHD & V+HD customers reporting their HD channels at reverting to 4:3 aspect & they cant change it.

Re: Mpeg4
 

Maybe it's a ploy to get them to change over to a V6? ;)

Re: Mpeg4
 

The only issue with those codecs, i assume, is the broadcaster would have to buy a license to use it.

No such problems with an open source codec.

Aren't broadcasters moving away from the Dolby sound codec for TruSurround for options that don't require a license?

Re: Mpeg4
 

Sky bought a minority stake in V-Nova and uses it in Italy wonder whether that's why the dishless Sky Q option will firstly roll out in Italy.

6-10 Mbps for UHD is impressive.

Re: Mpeg4
 

V6 rollout will most likely be partly in order to shift everything to MPEG4 (and maybe HEVC) so that there's capacity for more channels per MUX, freeing up MUXes for higher bandwidth broadband offerings.

Re: Mpeg4
 

Probably a very basic question (so apologies in advance) but this format change only applies to recorded files, not "live" broadcasts. In other words, nothing has changed on live tv...

Re: Mpeg4
 

It's the encoding of the actual streams from the headend. That's why they're keen to swap out all the boxes that will not support it.

That more efficient encoding will allow for better bit rates on some channels if they choose and more overall capacity elsewhere.

Re: Mpeg4
 

Hope the fix this fast forward bug, and it is a bug. There is no good reason why it couldn't be 2x speed as before with MPEG2.

Re: Mpeg4
 

The transmission is encoded in MPEG4. The box records the transmission as recieved (bitrate, encoding etc).

Re: Mpeg4
 

Ah ha... thanks guys. I wonder if this is why I have noticed a slight change in picture quality on Standard Definition channels recently. Do we know when these changes took effect?

Re: Mpeg4
 

SD channels haven't changed - it's only on the HD channels