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Altivec in mind...
https://powerdeveloper.org/forums/viewtopic.php?f=23&t=805		 Page 1 of 1
Author:  bbrv [ Thu Sep 14, 2006 8:12 pm ]
Post subject:  Altivec in mind...
We found this in our inbox. We had missed it from some time ago...
Quote:
theres a very easy way to put PPC Altivec power into peoples minds but its only a small window so you might think on it real quick.

the fact that the BBC HD trials over DVB-T, DVB-S and indeed DVB-C
(through NTL/telewests HD settop box) are free to air, and theres a frenzy right now about useing simple USB and PCI DVB cards to receave it and play it back in realtime.

the problem relates to the fact thats the BBC (and their counterparts ITV/C4/five) are also about to start their trial broadcasts, and are useing the advanced part of the AVC/H.264 codec with MBAFF encoding.

well now there exists (a few days)
a patch for 'libavcodec' here
http://students.washington.edu/lorenm/s ... aff.0.diff

and indeed this patch will help
all the other apps that use this codebase "VLC / x264 / FFDshow / FFMpeg etc"

the problem is while its already found its way into the nightly compiles of VLC http://nightlies.videolan.org/build/win32/
the resulting playback is still to weak as the developers seem unable/unwilling to optimise the code (as coreAVC have done) for sse+ and for our part PPC/Altivec.

now theres the thing, with Markos's
skill and his already existed libfreevec plus the great coders at http://www.simdtech.org/altivec
then surely SOMEONE can find the time to take a look at the base code for all these projects and produce a fully working PPC based codec that can and will playback at full speed these BBC HD .ts streams in real time.

thats the window and the chance to take it or not is now......

can you have a word and see if YOU can advocate this project for the masses of UK (and elsewere) end users with a need and a PPC/Altivec based machine before they are relegated to the unused pile........

with regards the SoC i really do think they should be including the tried and trusted PFGA as standard in all their products, then some inovative 3rd party can start making and putting these MBAFF decoders in their STB's/USB/and PCI DVB cards/boxs.......

now do you see why i wanted a composit/S-Video on you know what :)
It was from "popper" - thanks popper!

R&B :)
Author:  bbrv [ Mon Sep 18, 2006 4:59 am ]
Post subject: 
We are looking at revitalizing SIMDTech at Power.org.

Any suggestions?

Welcome back markos! 8)

R&B :)
Author:  markos [ Sun Sep 24, 2006 12:05 pm ]
Post subject:  Revitilizing SIMDTech.org
Quote:
We are looking at revitalizing SIMDTech at Power.org.

Any suggestions?

Welcome back markos! 8)

R&B :)
Hi R&B!

Good to be back (almost, I'm still not fully "functional" but getting there)!

About simdtech.org, I believe that we should put some effort into centralizing Altivec related material (articles, howtos, papers, forums, lists, etc) into one site. Be it simdtech.org or some subdomain of power.org, there has to be *one* official site, and it has to be constantly updated and kept active. It doesn't matter if it's the best site, if it's inactive, users/developers will ignore it and it will go into oblivion. Which is not what we want.

As said in a private mail, the way to go -imho- is an altivec/simd/Cell journal/magazine in online/printed form (preferably both, the latter with subscription) that would carry articles in the same manner as a scientific journal would. It would/should be *the* place to be for SIMD stuff (and in our case SIMD=AltiVec and Cell).

Anyway, whatever you decide, I'll be glad to help :-)

Konstantinos
Author:  bbrv [ Sun Sep 24, 2006 12:43 pm ]
Post subject: 
OK, let's start collecting these things and get them in powercollaboration - this will be the best place to concentrate our effort.

Again, we are very glad to have you back!

R&B :)
Author:  popper [ Thu Sep 28, 2006 5:51 am ]
Post subject: 
turned in to a very long post sorry about that but feel free to pull the bits out as you wish....

the overview, it involves realising the importance of small is good, the mobile video will be in AVC format and we need the ability to encode anything on the fly to AVC in whatever bitrate we like and importantly,tools to easly place that AVC in to a transport stream .ts as per DVB format....

it dosnt matter if your taking the content and manipulating it or creating it directly, its something that taking off and we can eather sit back and wait for someone to do it their way, or we can try and do it and set the standard our (amiga like/understandng) way, light and fast but with all the options needed included etc.
-----------------------------------------

in relation to the DVB part and encoding/decoding
thats were the KiloCORE FPGA comes in

http://www.ppczone.org/forums/viewtopic ... light=fpga

http://www.rapportincorporated.com/back ... t_ces.html
direct link to video
http://www.rapportincorporated.com/imag ... S2006.mpeg

http://www.technewsworld.com/story/49772.html
" IBM, Rapport Unveil Energy-Wise Power Chip
IBM (NYSE: IBM) and Power.org member Rapport unveiled a new energy-efficient processor dubbed Kilocore that features more than 1,000 processing elements around a Power chip architecture. "

given that Dr. Andrew Singer, CEO/CTO of Rapport, Inc
is a memeber of Power Org that i assume you have talked to him and could help each other by incorporating it as a standard feature that 3rd partys could then take anvantage of and hence sell more units, do we have a wireless 11G+/11N based provider in our group too?, that would enable potential vast sales of cheap industry setting NAS wireless boxs.

perhaps we even have a wireless firewire chipset maker and then the whole shabang is covered as iv been saying for a very long time,PDC days and before.

remember that the wireless firewire (i think it swa 2004 ) allows unit to unit communications, and so instead of diging out the master MESH enabled wireless NAT box every time you want to add more storage, you just power up another standard MESH NAS and link it over wireless firewire to the master unit etc....

http://www.technewsworld.com/story/53037.html
Sun Bets on Cool Profit With New Chips

these are multicore based too, so are something to watch out for and how we might fall more behind if we dont get more agressive and stop limiting the standard options, even if its more costly by including PFGA and wireless options as standard....

do it if you can.

the DVB hardware and AVC codec link
http://www.dvb.org/news_events/news/mob ... /index.xml
"
Mobile TV is big at IBC - but IPTV is hot on its heels

15 September 2006

At IBC 2006 in Amsterdam the exhibition halls were buzzing with talk of mobile TV. Just under two years after the publication of the standard by ETSI, mobile TV based on DVB-H is now a commercial reality with over 140,000 subscribers having signed up in Italy since June.

On the Nagravision stand visitors were able to experience the service live on handsets from LG and Samsung. A second commercial DVB-H service was officially launched last Saturday in Italy by TIM and Mediaset.

Attention is now turning to other markets where launches are expected in the coming 12 months: Finland, USA, Germany, Spain, Russia, France, and, following an annoucement during IBC, Vietnam."

and the reason its not wise to ignore the AVC codec, indeed why everyone reader here should be pushing for it.

the link is 3 pages long, so heres an overview
http://www.newvideobusiness.com/content/view/74/26/
"
'Bookmarks' in this feature (just follow the section headings):
VC-1 IS SIDELINED FOR REAL-TIME BROADCASTING
DUAL-CODEC APPROACH AT TIER-1 TELCOS
CONTINUING ROLE FOR MPEG-2 -- EVEN ON IPTV
IPTV MPEG-2/AVC MIGRATIONS
SATELLITE ADOPTS AVC FOR HDTV
CABLE HAS LESS NEED FOR ADVANCED CODING
ADVANCED COMPRESSION ON DIGITAL TERRESTRIAL
DTT REMAINS LARGELY MPEG-2
AVC HALVING BIT RATES
SWEET SPOT FOR HDTV IS 6-7.5Mbps
IPTV NEEDS TWO SIMULTANEOUS HD STREAMS
SATELLITE PUTS A PREMIUM ON PICTURE QUALITY
HDTV COULD BE POSSIBLE "IN 3-3.5Mbps"
HDTV BECOMING THE NEW STANDARD-DEFINITION?
TANDBERG TELEVISION'S NEW COMPRESSION ENGINE
TIER-1 QUALITY HDTV ONTO DENSE TELCO PLATFORMS
FOUR HD, FOUR SD AND FOUR PIP FROM 1RU
HARMONIC'S NEW SD AND HD ENCODING PLATFORMS
FOUR CHANNELS OF HDTV FROM 1RU
HARMONIC MOVES AWAY FROM MPEG-2/AVC PLATFORMS
"STILL A NEED FOR MPEG-2/AVC PLATFORMS"
DEBATE ABOUT IMPORTANCE OF DENSITY
BUT NEAR-CONSENSUS ABOUT VC-1
KEY DEPLOYMENTS: WHO USES WHO?
SCOPUS FINALISING HD PLATFORM"

NTL:tw accountant said *| LOL
"A spokesman says, “We are using MPEG-2 because we can."
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

"
AVC HALVING BIT RATES
The good news for operators on all platforms is that AVC is living up to its hype and halving bit rates compared to MPEG-2.

The fastest gains appear to be for high-definition, where the world’s leading encoder vendors have set their sights over the last 24 months.

So, from bit rates of up to 20Mbps for HDTV on MPEG-2 a couple of years ago, like-for-like HD services plummeted to around 8Mbps on leading-edge advanced encoders this time last year.

By IBC (Amsterdam exhibition) this September, the figures will be 6-8Mbps depending on content, with the most bullish predictions being for sub-6Mbps for hard-to-encode content like sports."

"
Depending on who you talk to, the so-called ‘sweet spot’ for HDTV is between 6Mbps and 7.5Mbps.

Carl Furgusson, VP product management at TANDBERG Television, comments: “We are getting to the point where we can get to around 6Mbps for HDTV with top quality pictures and with statistical multiplexing you can get between 6-8 satellite services onto a 36Mbps transponder.”

In fact, TANDBERG claims that with its latest encoder it can deliver more than eight channels of full-resolution HDTV on a 36MHz transponder using DVB-S2 (the latest satellite transmission standard) and 8PSK."

notice thats Mpeg-2 NOT HD Mpeg-2
"HDTV COULD BE POSSIBLE "IN 3-3.5Mbps"
Harmonic is also pushing the boundaries of bit rate reduction, claiming sub-6Mbps for best-quality HDTV sports pictures and as little as 3-3.5Mbps for less demanding content - which is matching some MPEG-2 services."

"TANDBERG TELEVISION'S NEW COMPRESSION ENGINE
TANDBERG Television is using IBC to unveil its new ICE3 (Intelligent Compression Engine), which is the underlying technology for the push towards 6Mbps HD.

The improvements in bit rates have been possible on the back of improved motion estimation, single-slice video processing, dedicated processing for low resolution encoding of PiP services, multi-pass analysis and enhanced video pre-processing.

ICE3 is being used on the new EN8030 AVC standard-definition encoder and the EN8090 AVC HD/SD encoder.

Effectively, these are the next-generation to the current EN5930 (SD) and EN5990 (HD) encoders for AVC but besides better bit rate reduction, they also deliver more outputs.

The EN8090, for example, will take a single HD input and generate a full-resolution HDTV channel, a secondary version of that main channel in full standard-definition, and a third ‘micro’ channel for use in PiP, mosaic and multi-view applications."

"FOUR HD, FOUR SD AND FOUR PIP FROM 1RU
As a result, the Plex systems can output up to 12 services from a single HD input within a 1RU form factor: four full-resolution HD, four secondaries up to full SD and four low-res channels for PiP type applications. For the telco market - which is more comfortable than the broadcast industry with high-density, multi-function platforms - this represents a notable advance."

new DVB *2 standards that can and will be used for everything from portable unites to tcp/IP/UDP multicasting personal and public TV over the network
and net...

http://www.newvideobusiness.com/content/view/77/26/
"
DVB wants new DVB-T and DVB-H standards by 2010

The DVB is preparing the ground for two major standards updates: DVB-T2 and DVB-H2, both of which are going to be closely interrelated, as the fixed terrestrial and mobile TV services they enable will be competing for the same UHF spectrum after analogue switch-off.

In each case, the standards will be designed to improve video delivery efficiencies. Although the specifications have to be defined, DVB-T2 (DVB-Terrestrial) is sure to make use of improved modulation techniques, as the new DVB-S2 (DVB-Satellite) standard has done in order to generate a 30 per cent increase in data throughput over a given bandwidth.

The DVB is not outlining efficiency targets but there is a view inside the organisation that major new standards like a new DVB-T should aim for a minimum 30 per cent improvement to make the effort worthwhile. There is an assumption that when UHF spectrum is made available after analogue switch-off, it will be extremely valuable."

"
The DVB denies that the introduction of DVB-H2 is a 'competitive' response to other mobile TV delivery standards/specifications, which have gained support over the last two years. According to MacAvock, the major focus is on DVB-T2 but because mobile services will compete for, and possibly use the same UHF spectrum, it is natural to develop the next version of DVB-H at the same time. He views the future use of UHF spectrum as a single, integrated issue , with the requirements for over-the-air HDTV, standard-definition television and TV-to-handhelds wrapped together."

like i said elsewere, it seems to me that NTL:tw/virgin use of that other cheaper for the bussiness end option their going to use will be another TVdrive white elephant ....

"
DVB-T2 is also viewed as a post switch-off technology - not a solution for existing terrestrial TV services. Analogue switch-off relies on mass consumer migration to digital terrestrial services and that needs very low-cost DVB-T set-top boxes in the market. Invariably, new technologies are considerably more expensive than old."

i dont think i could be convinced that that comment is the right way to look at it, sure the bean counters can justify it im sure, but look at what happened with most of the current DVB-T STBs, they droped in price like a stone because they didnt have the needed options or the ability to be flash upgraded, and all for a simple and cheap PFGA chip that could have been included as standard in the base developer unit that all the commercial boxs took as their product and they didnt see fit to add that option themelves.

its a simple thing in the long term, put all the needed options and the ability to upgrade it in the field on all the initial units and in time the box costs will fall without loosing the future codec and user options that might be available later."
Author:  popper [ Thu Sep 28, 2006 2:47 pm ]
Post subject: 
it just said on Sky news UK that itunes took £1million in the week they have been open, i said video was werth it, imagine how much more it could make without the locked in itunes or the MS? lock in.
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