[opendtv] Re: Pros/Cons of DSP processor based MPEG software decoder or hardware based MPEG decoder
- From: "Ralph P. Manfredo" <rmanfredo@xxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 8 Feb 2005 09:22:36 -0800
Donald:
Donald:
That is a good and quick response to the question. However, I believe you
left out a couple of very important reasons as to the why the H.264 has not
been implemented in chip form yet. One has to do with the time it takes to
go from standard release to a released chip. That is why the software
versions are out now I believe. Second and I believe is more important is
the cost to deliver and view a program that is MPEG-4 H.264 compliant due to
the total licensing costs. These costs are a significant factor I believe
and MPEG-LA and their outrageous licensing scheme may kill MPEG-4. I don't
believe consumers in general will accept the higher costs to watch a MPEG-4
program vs. an MPEG-2 program. This of course is my opinion, but I am part
of a next generation entertainment system standards committee, and we are
seriously considering scrapping MPEG-4 due to the high licensing costs to
view a program. These costs presently outweigh the advantage saved by
storage requirements as disc drive costs are coming down and capacity is
going up and this is a one time cost.
Ralph
Ralph P. Manfredo
President & CEO
rmanfredo@xxxxxxxx
************************************************************************
BroadBand Networks Corporation
2530 Berryessa Road, No. 237
San Jose, CA 95050
Phone: 408.988.2060
Fax: 408.988.2188
www.bbnc.com
Leaders in MPEG-2 and MPEG-4 video over ATM and IP Networks
************************************************************************
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of Donald Koeleman
Sent: Tuesday, February 08, 2005 5:35 AM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: Pros/Cons of DSP processor based MPEG software
decoder or hardware based MPEG decoder
MPEG 2 MP@ML decoder chips are generaly all hardware, the technology on
these chips has matured over the past decade and there is no real need to
update the decoding capabilities after the box leaves the factory. MPEG 4
Main profile standard definition decoders are available in hardware, however
anything newer or higher spec, like H.264 or WM9/VC1 uses software codecs.
Several reasons, largely to do with economies of scale, as numbers are still
relatively small. Codecs are still under development, so generations of
capability sets replace eachother quite rapidly, so no time to design and
build a hardware implementation and recoup cost. The market is still split
between MPEG and Microsoft, and large operators are still making up their
minds as wich platform to choose and current service providers do not want
to be locked in right at the start of the development of this technology.
Donald
----- Original Message -----
From: "Prashant Desai" <prashant.desai@xxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Tuesday, February 08, 2005 12:25 PM
Subject: [opendtv] Pros/Cons of DSP processor based MPEG software decoder or
hardware based MPEG decoder
Hello All
i am new to this digital content would , i would like to know and
understand the Pros/Cons of different methods of implementation of the
MPEG -4 , MPEG-2 decoder is better compared to the other .
Based on my current understanding there are two ways by which the MPEG-4
/MPEG-2 decoder's can be implemented the first method is using a combo of
DSP processor and software implementation of MPEG-4/2 decoder whereas the
other is to implement the full hardware based MPEG-4/2 decoder , i think
it's always better to have 100% hardware based
decoder from performance point of view , i dont know what are the advantages
of using a software based MPEG-4/2 decoder on the top of DSP processor
..........
i would be really grateful if you guys can provide your opinions and imputs
in this regard
warm regards,
Prashant Desai
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
Other related posts:
