RE: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-07-31 Thread Gareth Davis

Currently we're using old servers held together by string and
sealing wax, run on our behalf by Siemens, and being waited on hand and
foot by trained engineers to eke the very last amount of life out of
their tired motherboards. They use software from Digital Rapids:
http://www.digital-rapids.com/ http://www.digital-rapids.com/ 
 

Judging by the number of tickets I've seen raised for the boxes over the
last couple of weeks, James really isn't joking! 
-- 
Gareth Davis | Production Systems Specialist
World Service Future Media, Digital Delivery Team - Part of BBC Global
News Division
* http://www.bbcworldservice.com/ http://www.bbcworldservice.com/  *
702NE Bush House, Strand, London, WC2B 4PH


 


Re: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-07-30 Thread James Cridland
On Sun, Jun 29, 2008 at 4:52 PM, Christopher Woods [EMAIL PROTECTED]
 wrote:

  Christopher Woods wrote:
   Tech question - what encoder(s) are you using? If it's software in
   realtime or close-to-realtime, please (please please) say it's Lame
   3.97. If the backend is using the Fraunhofer FhG codec, I think I
   might contemplate going and banging my head against a wall
  for a little while.


Currently we're using old servers held together by string and sealing wax,
run on our behalf by Siemens, and being waited on hand and foot by trained
engineers to eke the very last amount of life out of their tired
motherboards. They use software from Digital Rapids:
http://www.digital-rapids.com/

Coyopa goes live shortly (actually, shhh, it's live now, we're just not
publishing the files yet) and it will be using software from twofour:
http://www.twofourgroup.com/ - I don't know the actual codec we're using;
it's a choice for our contractor. MP3 is not our longterm codec choice.

I think many are of the opinion that Lame is a higher quality and more
 efficient software codec than the FhG codec. It certainly excels at VBR
 encoding and quality at lower bitrates (circa 128kbps, which is where the
 BBC is initially encoding their stuff).


In fact, it's (from memory) 80k for 5live and 5livese, 128k for everything
else, except 192k for Radio 3. Again, this is not our longterm bitrate
choice neither. I refuse to be drawn! ;)

A question / request to BBC techies who have sorted this out: VBR is widely
 supported across PC, portable and handheld devices. Is VBR encoding on the
 cards for the future / could it be?


No, it's not; VBR is not a good solution for streaming files, which requires
CBR to work effectively as I recall.

While Coyopa will be creating files to download, given those same files will
be used for streaming, we'll be using CBR for those.

We're currently prohibited from using, say, progressive download techniques
for our streams, due to rights reasons. The BBC Embedded Media Player
buffers approx five seconds of audio as a result (which also enables us to
offer full navigation throughout audio and video files).

Hope all that's interesting to people.


RE: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-06-29 Thread Christopher Woods
 Christopher Woods wrote:
  Tech question - what encoder(s) are you using? If it's software in 
  realtime or close-to-realtime, please (please please) say it's Lame 
  3.97. If the backend is using the Fraunhofer FhG codec, I think I 
  might contemplate going and banging my head against a wall 
 for a little while.
 
 Wait, what?
 You don't believe in inventors being able to profit directly 
 from their inventions by selling software? I mean, there are 
 lots of things wrong with the patent system, but it's not 
 like FhG are patent trolls or this is a submarine. They're 
 (co-)inventors, and they even sell software based on it, not 
 simply lying back and collecting on past IP...

I'm more for the best quality for the price, regardless of whether it's free
or not :) The FhG codec has some strange alternatives to otherwise-standard
VBR techniques, (Original File Length), and didn't actually have VBR
encoding capability until comparatively recently (both Lame and Xing (spit)
had VBR before that).

I think many are of the opinion that Lame is a higher quality and more
efficient software codec than the FhG codec. It certainly excels at VBR
encoding and quality at lower bitrates (circa 128kbps, which is where the
BBC is initially encoding their stuff). If they're using really expensive
hardware codecs then that's their choice, but I suspect they've gone the
software route because it's far more cost-effective.

And above that, Lame is FOSS. Bar the possible licencing to Fraunhofer for
overall use of the MP3 technology, which is likely unavoidable, it'd make
little sense not to use it.


A question / request to BBC techies who have sorted this out: VBR is widely
supported across PC, portable and handheld devices. Is VBR encoding on the
cards for the future / could it be?

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Re: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-06-26 Thread Mr I Forrester

YES!!

Just for the lazy,

One thing conspicuously missing from the current iPlayer site is the 
provision of RSS feeds http://www.bbc.co.uk/feedfactory/. For those 
who want to consume our content via their RSS reader, or who want to 
create mashups http://news.bbc.co.uk/1/hi/technology/6375525.stm of 
the iPlayer site - good news - every page has an RSS feed.


You can even subscribe to a feed of an arbitrary search query, allowing 
you to use third party feed readers to alert you when your favourite 
programmes arrive



Be happy backstagers

Dafyd Jones wrote:
See also 
http://www.bbc.co.uk/blogs/bbcinternet/2008/06/bbc_iplayer_20_sneak_preview.html... 
lots of pictures :D


On Wed, Jun 25, 2008 at 5:50 PM, Christopher Woods 
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:


http://www.theregister.co.uk/2008/06/25/bbc_iplayer_update/
 
our MP3 prediction was correct! Woohoo! Plus, streaming radio gets

a live rewind button. These updates look really nice and
long-awaited, so kudos to all who helped make it a reality. :)
 
 
(MP3! Yes!)
 
 
Tech question - what encoder(s) are you using? If it's software in

realtime or close-to-realtime, please (please please) say it's
Lame 3.97. If the backend is using the Fraunhofer FhG codec, I
think I might contemplate going and banging my head against a wall
for a little while.




--
e: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
w: www.dafyd.me.uk http://www.dafyd.me.uk
m: 07834 356 324 



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Re: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-06-26 Thread Adam Lindsay

Christopher Woods wrote:
Tech question - what encoder(s) are you using? If it's software in 
realtime or close-to-realtime, please (please please) say it's Lame 
3.97. If the backend is using the Fraunhofer FhG codec, I think I might 
contemplate going and banging my head against a wall for a little while.


Wait, what?
You don't believe in inventors being able to profit directly from their 
inventions by selling software? I mean, there are lots of things wrong 
with the patent system, but it's not like FhG are patent trolls or this 
is a submarine. They're (co-)inventors, and they even sell software 
based on it, not simply lying back and collecting on past IP...


adam
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Re: [backstage] So was *this* what Mr. Cridland was referring to recently?

2008-06-26 Thread Dave Crossland
2008/6/26 Adam Lindsay [EMAIL PROTECTED]:
 Christopher Woods wrote:

 Tech question - what encoder(s) are you using? If it's software in
 realtime or close-to-realtime, please (please please) say it's Lame 3.97. If
 the backend is using the Fraunhofer FhG codec, I think I might contemplate
 going and banging my head against a wall for a little while.

 Wait, what?
 You don't believe in inventors being able to profit directly from their
 inventions by selling software?

The holders of software _idea_ patents don't profit directly from
their software - that's what free software businesses do - they profit
from government-granted monopoly. Don't you believe in free markets?
:-)

-- 
Regards,
Dave
Personal opinion only.
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