[OT] TOTPs not offered in HD (720p)

[Jim web]

We're drifting OT here but:

Does the below explain why if I take a recorded .ts file I've grabbed from
DVB-T2 though

ffmpeg -i recorded.ts -acodec copy -vcodec copy cleaned.ts

the resulting cleaned.ts plays in VLC with fewer problems than the
recorded.ts ?

i find that trying to 'jump' the point being played in VLC tends to crash
VLC when playing the recorded.ts but not the cleaned.ts. When a time  jump
works, the display depixellates quicker as well.

Jim


In article <20160111172824.GA3931 at mcrowe.com>, Mike Crowe
<mac at mcrowe.com>
wrote:
> On Monday 11 January 2016 at 16:55:32 +0000, Roger Rarebit wrote:
> > A Raspberry Pi zero £4 can play 1080p60fps.

> It's not necessarily the codec that's the problem - it's the container.
> It may be able to play such a file from an ISO (MP4) container but not
> from a transport stream as captured off-air.

> Transport streams are rather inefficient to unpack in software since the
> chunks of data are so small. Chips used in set-top boxes have special
> silicon to make this demultiplexing more efficient. (The Raspberry Pi
> uses a mobile phone chip so it lacks this capability so it has to demux
> in software.)

> Of course, you can remux the file from a transport stream beforehand and
> then it will require less horsepower to play.

> Mike.

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