[opendtv] Re: Global standard

  • From: "Mike Tsinberg" <Mike@xxxxxxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Sat, 28 Apr 2012 12:43:52 -0400

So what are most inclusive set of standards and what are new initiatives?
Does RTCP carrying H.264 and Flash RTMP are de-facto standards?

Best Regards,
Mike Tsinberg
http://keydigital.com




-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of Manfredi, Albert E
Sent: Friday, April 27, 2012 6:42 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: Global standard

Mike Tsinberg wrote:

> We always had a dream about a global HD broadcasting standard. In 
> creating ATSC we were hoping to have as many countries as possible to 
> sign up. It seems it does not work in case of broadcasting media. It 
> is always government, political, 50-60 and other issues that make 
> these standards more or less local or regional. We had a little more 
> success with DVD at least creating same basic global platform but 
> still culture and politics split it into regions.

I've never been able to figure this out. It makes the global TV broadcasting
community appear incompetent, to me at least, when the audio community has
managed to keep things standard for a long time. All records and CDs can be
played anywhere. Until digital radio came around, aside from slight
differences in the radio bands and perhaps in FM equalization (more high
frequency de-emphasis in the US), mostly even radio was globally
standardized. (Analog tuned radios, at least, had little trouble operating
everywhere. Digitally tuned radios have to designed correctly to work
everywhere, but it's no big feat there either.)

> However, internet is a different media altogether. And at this time it 
> mostly intraoperative for video globally.
>
> Question: does it make sense to formalize standard or set of standards 
> to be used for video content on the internet?

It's already happened, in fact, although Apple tried to screw that up too.
There are different ways you can carry video, including live streams, over
the Internet. The most basic is to use RTP and RTCP (Real Time Protocol/Real
Time Control Protocol), which are documented in RFC 3551, updated by RFC
6184 for carrying H.264 compression. Most media players support this.

But there are also more proprietary techniques, e.g. Flash RTMP, now in the
public domain, which allow streaming over web sites (encapsulated within
HTTP packets instead if using UDP/IP, which many firewalls block). This has
become a de facto global standard, although of course Kon can tell you how
it doesn't work for everyone anymore!

It keeps evolving. With PCs, upgrading isn't so difficult, although
eventually the hardware can't keep up. My old PC was jerky when viewing
H.264 streams, for instance. I don't know about tablets and how easily they
can be upgraded.

I haven't noticed any national efforts at messing up this good thing. Just
individual corporations seem to enjoy doing so. Apple being one of them.

Bert

 
 
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