[Mp4-tech] Which Codec implementation is better [ software basedorHardware Based ]

[Charles A. Fox]

Hi Prashant, 
The software based codec comes in two flavors, the fully software based
running on a PC like platform and the DSP software based running on a
Programmable DsP. 
The software DSP version has other advantages: 
* if general purpose processor is integrated the other processor
functions can be integrated on one chip like pre-processing filters,
scaling, encryption, network stack interfaces. Also customer can add
their own proprietary value added code in any of these or other
functions to differentiate their product. 
* can update the codec for changes in the standard
* can define different end products with the same silicon by simply
changing the codec function profile, frame rate, number of channels,
other stream processing software
Some disadvantages versus fully hardware based fixed function codec
chips
* Software solutions on programmable DSP chips using cost more than
fixed codec hardware
chuck
  _____  
From: Prashant Desai [mailto:prashant.desai vsnl.co.in] 
Sent: Wednesday, February 09, 2024 4:58 AM
To: Shanmugam T
Cc: mp4-tech lists.mpegif.org; mp4-tech-bounces lists.mpegif.org
Subject: Re: [Mp4-tech] Which Codec implementation is better [ software
basedorHardware Based ]
what about the disadvantages of software based codec implementations and
other trade offs for hardware/chip based codec implementation 
regards,
Prashant Desai 
----- Original Message ----- 
	From: Shanmugam T <mailto:Shanmugam.T lntinfotech.com>  
	To: Prashant Desai <mailto:prashant.desai vsnl.co.in>  
	Cc: mp4-tech-bounces lists.mpegif.org ;
mp4-tech lists.mpegif.org 
	Sent: Wednesday, February 09, 2024 9:54 AM
	Subject: Re: [Mp4-tech] Which Codec implementation is better [
software basedor Hardware Based ]
	Hi Prashant, 
	   Software based codec has following advantages, 
	        i)  Code can be ported across many platforms without any
change or with minor modifications if required. It gives better
re-usability and time-to-market 
	        ii) General DSP or RISC processor in a system, can be
used for other codecs (audio etc) also.         
	        iii) Software updating will be easier than hardware
modification.           
	 Please correct me if my understanding is wrong!         
	Regards
	Shanmugam T
	This document is classified as :
	( ) L&T Infotech Proprietary & Confidential
	( ) L&T Infotech Confidential
	(x) L&T Infotech Internal Use only
	( ) L&T Infotech General Business Information 
	Prashant Desai <prashant.desai vsnl.co.in> 
Sent by: mp4-tech-bounces lists.mpegif.org 
08/02/2024 04:54 PM 
        To:        mp4-tech lists.mpegif.org 
        cc:         
        Subject:        [Mp4-tech] Which Codec implementation is better
[ software based or Hardware Based ]	
	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 
________________________________________________________________________
_____________________________________________
	NOTE: Please use clear subject lines for your posts. Include
[audio, [video], [systems], [general] or another apppropriate identifier
to indicate the type of question you have.
	Note: Conduct on the mailing list is subject to the Antitrust
guidelines found at
http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php 
______________________________________________________________________
  _____  
	_______________________________________________
	NOTE: Please use clear subject lines for your posts. Include
[audio, [video], [systems], [general] or another apppropriate identifier
to indicate the type of question you have.
	Note: Conduct on the mailing list is subject to the Antitrust
guidelines found at
http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php
-------------- next part --------------
An HTML attachment was scrubbed...
URL: /pipermail/mp4-tech/attachments/20050209/4944e5e7/attachment.html