[Mp4-tech] Which Codec implementation is better [
software basedorHardware Based ]
Vinayak Pore
vpore pace.stpp.soft.net
Thu Feb 10 18:07:33 ESTEDT 2005
Hi,
Software (-) Hardware (+) points
1. Power consumption of the hardware could be less.
2. Predictable and time bound behavior of the task (of course if
designed for the case)
3. Hardware may not necessarily implement full functionality. Few
compute intense modules could be in hardware other can be in software on
Generic Processor. So Hardware can act as an accelerator.
Software (+) Hardware (-) points
1. Less chip count.
2. Rapid prototying of the application
3. All the points said in mail below.
regards,
Vinayak.
Charles A. Fox wrote:
>
>
> 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
> <mailto:mp4-tech-bounces lists.mpegif.org> ;
> mp4-tech lists.mpegif.org <mailto: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
>
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