Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-07 Thread Ondrej Wisniewski
Ondrej Wisniewski wrote:
 This board mounts a CX700M2 chipset which features MPEG2/4 hardware 
 decoding. It has DVI and Y/Pb/Pr video output as well as analog and 
 SPDIF audio (coaxial and optical). So that's everything we need, isn't it.

Well, looks like the people who pointed out that this chip doesn't 
decode h.264 are right. Neither could I find any other decoder chip on 
the VIA web pages that would do that. So this is actually a no go for 
the EPIA boards for decoding HD-TV video.  That means I was wrong and we 
really *don't* have the needed hardware *today*, not to mention Linux 
support.

Remains to be seen if VIA (or some other manufacturer) comes up with a 
small, low power consumption MB with h.264 hw decoding or if we see a FF 
DVB-S2 card before that. In the meantime there is no hurry, I'm happy 
with the current VDR :-)

Ondrej

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-07 Thread Petri Helin
Ondrej Wisniewski wrote:
 Remains to be seen if VIA (or some other manufacturer) comes up with a 
 small, low power consumption MB with h.264 hw decoding or if we see a FF 
 DVB-S2 card before that. In the meantime there is no hurry, I'm happy 
 with the current VDR :-)
 

Intel should be doing that this year with their to be released G45 
chipset with X4500HD integrated graphics and since Intel has been quite 
nice with their attitude towards Linux and open source, it could even be 
possible to have a h.264 decoding motherboard by the end of this year.

-Petri

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-07 Thread lucian orasanu
for hdtv - no.
I don't see the h.264 hardware decoding. mpeg4 is
not h.264.

Igor


What is H.264?

H.264 is the next-generation video compression
technology in the MPEG-4 standard, also known as
MPEG-4 Part 10. H.264 can match the best possible
MPEG-2 quality at up to half the data rate. H.264 also
delivers excellent video quality across the entire
bandwidth spectrum — from 3G to HD and everything in
between (from 40 Kbps to upwards of 10 Mbps).


Lucian


  

Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  
http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ 


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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Laz
On Wednesday 06 Feb 2008, Ondrej Wisniewski wrote:
 With VDR getting ready for HD-TV it seems that today the MPEG4 decoding
 can only be done on a high end processor or an external decoder card.
 Many people are still waiting for a FF DVB-S2 card but it doesn't look
 very promising at the moment.

 So I was wondering if it would be possible to use the on board video
 decoder chips of the VIA EPIA boards like the VIA EPIA EX15000G
 http://www.via.com.tw/en/products/mainboards/motherboards.jsp?motherboa
rd_id=450

 This board mounts a CX700M2 chipset which features MPEG2/4 hardware
 decoding. It has DVI and Y/Pb/Pr video output as well as analog and
 SPDIF audio (coaxial and optical). So that's everything we need, isn't
 it.

 I know, currently the OpenChrome video driver doesn't support MPEG2/4
 video decoding for the CX700M2 and there are probably other things
 missing from the software support side. But from what I see, this or a
 similar motherboard in combination with a budget DVB-S2 card have all
 the hardware features that are needed to have HD-TV. So we actually
 have the proper hardware platform *today* for a quite a low budget. So
 if all the efforts go into driver and application development for such
 a platform, there is no need to wait for FF DVB-S2 cards.

 Or am I missing something here?

I think the main problem here is Via not wanting to release information on 
their chipset to allow MPEG4 support to be built into OpenChrome or 
similar.

MEPG2 decoding works (at least on the older Via chipsets...) but I think 
this was mostly reverse-engineered!

I don't think MPEG4 decoding will be supported in this way for a very long 
time, unless Via have changed their attitudes. (Not really bothered 
looking into this because HD is years off in the UK where I am, unless 
you fork out lots to Sky!)

It is a shame to have such hardware and not be able to use it!!

Cheers,

Laz

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[vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Ondrej Wisniewski
With VDR getting ready for HD-TV it seems that today the MPEG4 decoding 
can only be done on a high end processor or an external decoder card. 
Many people are still waiting for a FF DVB-S2 card but it doesn't look 
very promising at the moment.

So I was wondering if it would be possible to use the on board video 
decoder chips of the VIA EPIA boards like the VIA EPIA EX15000G
http://www.via.com.tw/en/products/mainboards/motherboards.jsp?motherboard_id=450

This board mounts a CX700M2 chipset which features MPEG2/4 hardware 
decoding. It has DVI and Y/Pb/Pr video output as well as analog and 
SPDIF audio (coaxial and optical). So that's everything we need, isn't it.

I know, currently the OpenChrome video driver doesn't support MPEG2/4 
video decoding for the CX700M2 and there are probably other things 
missing from the software support side. But from what I see, this or a 
similar motherboard in combination with a budget DVB-S2 card have all 
the hardware features that are needed to have HD-TV. So we actually have 
the proper hardware platform *today* for a quite a low budget. So if all 
the efforts go into driver and application development for such a 
platform, there is no need to wait for FF DVB-S2 cards.

Or am I missing something here?

-- 
Ondrej

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Tony Grant

Le mercredi 06 février 2008 à 09:58 +, Laz a écrit :

 I don't think MPEG4 decoding will be supported in this way for a very long 
 time, unless Via have changed their attitudes. (Not really bothered 
 looking into this because HD is years off in the UK where I am, unless 
 you fork out lots to Sky!)

I'm not so sure. I don't think it will be years - maybe one and a half.

My question is is HD worth all the fuss - most run of the mill folk on
the street can't see the difference between DVD quality digital and HD.
Especially in high speed action scenes on current sized screens. And who
really wants to look at black spots on actresses noses in all that gory
detail? Or fat on their backsides for that matter.

HD needs to be shown at sizes where the extra pixels are worth our while
I don't have 3000€ to put into a screen.

Cheers

Tony


-- 


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[vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Morfsta
On Feb 6, 2008 9:58 AM, Laz [EMAIL PROTECTED] wrote:
 I don't think MPEG4 decoding will be supported in this way for a very long
 time, unless Via have changed their attitudes. (Not really bothered
 looking into this because HD is years off in the UK where I am, unless
 you fork out lots to Sky!)

Apologies for going slightly off topic, but errrm, no it isn't. Three
of the four main broadcasters in the UK will be offering HD services
this spring, for free, on the FreeSat platform. Currently you can get
an excellent service from BBC HD for free and Channel 4 HD you can
watch for the one off cost (£15) of a viewing card. C4 HD will also be
going FTA in a month or two. I can currently watch and record both
channels on my VDR box which is fantastic (check out Paul Mcartney at
the Electric Proms in HD and DD5.1!)

Apparently ITV HD will start FTA in March / April. Additionally, Luxe
HD is also FTA on Astra 2.

So, currently 4 HD channels that you can receive in the UK without
forking out lots to Sky.

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread JJussi
On Wednesday, 6. Februaryta 2008 13:40:36 Tony Grant wrote:

 HD needs to be shown at sizes where the extra pixels are worth our while
 I don't have 3000€ to put into a screen.

But some of us do! ;-)

-- 
JJussi

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Darren Salt
I demand that Ondrej Wisniewski may or may not have written...

 With VDR getting ready for HD-TV it seems that today the MPEG4 decoding can
 only be done on a high end processor or an external decoder card.

MPEG-4 (or, more specifically, H.264) != HDTV. Sooner or later, it'll be used
for 576p or 576i, if it's not being used for that already somewhere.

[snip]
-- 
| Darren Salt| linux or ds at  | nr. Ashington, | Toon
| RISC OS, Linux | youmustbejoking,demon,co,uk | Northumberland | Army
| + Burn less waste. Use less packaging. Waste less. USE FEWER RESOURCES.

Do not be overly suspicious where it is not warranted.

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Tony Grant

Le mercredi 06 février 2008 à 17:29 +0200, JJussi a écrit :

  HD needs to be shown at sizes where the extra pixels are worth our while
  I don't have 3000€ to put into a screen.
 
 But some of us do! ;-)

I would probably spend a lot more time - enough to justify the cost - in
front of TV if I lived in the far north. But I don't. There is a
cost/quality threshold in entertainement and HD is on the wrong side
right now (Image quality AND content quality). DVB-S and/or DVD are
plenty enough for us. And where I live going to the movies is cheap (the
whole family of four for less than 20€) and we meet other people there
too! And the cinema is about 250 meters from home...

For me HD is one of the least exciting technological progresses ever.
Digital video is good enough for most needs. I wish more money was
spent producing quality content - that is the weakest link right now.

What was really exciting was finding VDR and being able to
watch/record/time shift UK TV from France with great enough image and
sound quality - much much better than the analogical satellite we had
before.

Cheers

Tony 
-- 


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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Jean-Claude Repetto
Darren Salt a écrit :
 
 MPEG-4 (or, more specifically, H.264) != HDTV. Sooner or later, it'll be used
 for 576p or 576i, if it's not being used for that already somewhere.
 

You are right. In France, pay-TV channels (SD) on DVB-T are encoded in 
MPEG-4 since 2005.

Jean-Claude


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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Anssi Hannula
Darren Salt wrote:
 I demand that Ondrej Wisniewski may or may not have written...
 
 With VDR getting ready for HD-TV it seems that today the MPEG4 decoding can
 only be done on a high end processor or an external decoder card.
 
 MPEG-4 (or, more specifically, H.264) != HDTV. Sooner or later, it'll be used
 for 576p or 576i, if it's not being used for that already somewhere.

According to wikipedia, it is:
http://en.wikipedia.org/wiki/H264#Applications

-- 
Anssi Hannula

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Re: [vdr] HD-TV hardware decoding on motherboard instead of waiting for FF DVB-S2 card

2008-02-06 Thread Nicolas Huillard
Ondrej Wisniewski a écrit :
 With VDR getting ready for HD-TV it seems that today the MPEG4 decoding 
 can only be done on a high end processor or an external decoder card. 
 Many people are still waiting for a FF DVB-S2 card but it doesn't look 
 very promising at the moment.
 
 So I was wondering if it would be possible to use the on board video 
 decoder chips of the VIA EPIA boards like the VIA EPIA EX15000G
 http://www.via.com.tw/en/products/mainboards/motherboards.jsp?motherboard_id=450
 
 This board mounts a CX700M2 chipset which features MPEG2/4 hardware 
 decoding. It has DVI and Y/Pb/Pr video output as well as analog and 
 SPDIF audio (coaxial and optical). So that's everything we need, isn't it.
 
 I know, currently the OpenChrome video driver doesn't support MPEG2/4 
 video decoding for the CX700M2 and there are probably other things 
 missing from the software support side. But from what I see, this or a 
 similar motherboard in combination with a budget DVB-S2 card have all 
 the hardware features that are needed to have HD-TV. So we actually have 
 the proper hardware platform *today* for a quite a low budget. So if all 
 the efforts go into driver and application development for such a 
 platform, there is no need to wait for FF DVB-S2 cards.
 
 Or am I missing something here?

I'd also like to read some answers to that specific question.
Is the EPIA EX the kind of hardware that could some day properly render 
1920x1080 broadcasts ?

-- 
NH

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