Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
_hm
User Rank
CEO
Re: HEVC in multi-core chips
_hm   7/7/2013 4:11:58 PM
NO RATINGS
In place of decoder need to guess many unknown variants of encoder, is it not possible for encoder to follow some basic protocol to make decoder work more predictable and easily achievable?

 

OlyG
User Rank
Rookie
Re: HEVC in multi-core chips
OlyG   7/3/2013 12:14:55 AM
NO RATINGS
NGCodec.com has been offering a free HEVC compliance clps for decoder since January.

http://ngcodec.com/compliance/

 

 

junko.yoshida
User Rank
Blogger
Re: Not to mention VP9
junko.yoshida   7/2/2013 10:31:57 PM
NO RATINGS
@Bert22306, Your points are well taken. We will look into that!

Bert22306
User Rank
CEO
Not to mention VP9
Bert22306   7/2/2013 7:54:51 PM
NO RATINGS
VP8 was introduced long after H.264, so it was at a disadvantage from the start. It seems that this time around, H.265 and VP9 will emerge at about the same time, and that both should be available for UHDTV. It would be nice to see them compared in terms of compression efficiency, where efficiency would be compared on the basis of image quality vs bit rate and, for any given image quality, the CPU resources required in encoding and in decoding.

I'm not sure whether HEVC is the only option worth discussing, this time around?

bobdvb
User Rank
Manager
Frame rate
bobdvb   7/2/2013 1:11:29 PM
The biggest issue is really about frame rate, we have current implementations which only support 50/60Hz when in reality the large frame size doesn't suit low frame rates. There is research going on into higher frame rates (120/150Hz) but I would really like to see the industry taking a longer term view and building 300Hz.

junko.yoshida
User Rank
Blogger
Re: HEVC in multi-core chips
junko.yoshida   7/2/2013 12:38:32 PM
NO RATINGS
I am glad that I am not alone traumatized (no, not really) by the tulips and windmills video! (well, as a reporter covering the field, at every MPEG demo I attended, I was shown the same video over and over...)

I always thought the standards body's "tool box" strategy genious,. But oh, boy,  there appears to be so much flexibility in HEVC encoding.

It may take some time for vendors to "settle on a few subsets," though.

 

Frank Eory
User Rank
CEO
Re: HEVC in multi-core chips
Frank Eory   7/2/2013 12:23:25 PM
Ah yes, the tulips and windmills! There were a few other streams I watched so many times that they are forever etched into my memory.

On a more serious note, a standard verification suite will help, even if it isn't yet an official standard. Eventually, within the vast space of options on the encoder side, people will hopefully settle on a subset of tools that work well for most UHDTV delivery schemes.

junko.yoshida
User Rank
Blogger
HEVC in multi-core chips
junko.yoshida   7/2/2013 10:14:55 AM
NO RATINGS
When I was interviewing Argon Design, two things popped up.

The company explained:

...In HEVC, multi-core chips can encode streams in independent tiles, while hardware implementations may choose to minimize cache sizes by using wavefront encoding. However, decoders need to support all options.

 

...HEVC has moved from a fixed partitioning scheme to a quad-tree decomposition scheme. This means there are orders of magnitude more variations of block sizes for coding/transform/prediction. 


Now both of these things pointed out above tells me that yes, verifying your decoder against your own encoder may work, but certainly it doesn't guranatee that your decoder can support various encoders that will soon be out there! That sure sounds like "unintended consquences" waiting to happen.

 



Most Recent Comments
MeasurementBlues
 
Max The Magnificent
 
Max The Magnificent
 
mhrackin
 
BinaryJudy
 
Max The Magnificent
 
R_Colin_Johnson
 
elizabethsimon
 
rgiaraffa787
Most Recent Messages
12/19/2014
1:14:26 PM
Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
3 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
10 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

No 2014 Punkin Chunkin, What Will You Do?
Martin Rowe
2 comments
American Thanksgiving is next week, and while some people watch (American) football all day, the real competition on TV has become Punkin Chunkin. But there will be no Punkin Chunkin on TV ...

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...