[ECOS] mp3 or mpeg4 feasibility on eCos

[ECOS] mp3 or mpeg4 feasibility on eCos

[Satish Kumar]

Hi,
   Can someone let me know, why mp3 or mpeg-4 kind middleware`s
are difficult to develop/port on eCos. is eCos made for such 
applications..?
  what kind of applications are usually targeted to work on eCos..?

thanks,
saty

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

RE: [ECOS] mp3 or mpeg4 feasibility on eCos

[Robert Cragie]

Without any knowledge of your target hardware, it's very difficult to give
'exact' roles. However, I will try to explain generally how it works.

You need to create drivers for the hardware which is doing the encoding and
decoding. These drivers will typically respond to client commands from the
higher level software (through an API, or through the operating system's
message passing service). The higher level software could be a general
purpose multimedia 'middleware' on which sit even higher level applications,
or it could be a aimpler, dedicated application, which is itself responsible
for coordinating the efforts of the hardware.

The client commands will typically program the hardware encoder/decoder via
its registers and the driver will then assume a certain state, e.g. idle,
encoding, etc. The driver then also needs to respond appropriately to the
relevant interrupts generated by the encoder/decoder in the various states
and progress the execution of the scenario which is required by the higher
level application.

So the role of eCos is to provide the infrastructure for the interrupt
handling (ISR and DSR) for all the peripherals on your target,
multi-threading to allow concurrent management of events from the various
peripherals in their respective drivers, and also to provide a
multi-threading execution environment for the application(s). One of the key
roles of a multi-tasking OS in an embedded environment is to defer
prioritisation of processing to the software environment by signalling
threads from multiple events occuring the interrupt service routine(s). In
this way, very little time is spent in the actual ISR/DSRs and there are far
fewer problems with losing interrupts, spending too much time in ISRs etc.
than with a traditional non-OS based approach.

This is really just the tip of the iceberg of a complex subject, but should
give you an idea of what it's all about.

Robert Cragie, Design Engineer
_______________________________________________________________
Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
http://www.jennic.com  Tel: +44 (0) 114 281 2655
_______________________________________________________________

> -----Original Message-----
> From: ecos-discuss-owner@sources.redhat.com
> [mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of Satish Kumar
> Sent: 03 October 2003 09:35
> To: Retallack, Mark (Siemens)
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] mp3 or mpeg4 feasibility on eCos
>
>
> well,
>       My target board contains hardware based MPEG-4 encoder and MPEG-4
> decoder and its controlled by ARM926EJ-S microprocessor..and supports
> upto 64mb memory.
>   so, whatz the exact role of software control over hardware using eCos..
> can some one give me some more inputs..?
>
> satish
>
>
> On Fri, 3 Oct 2003 09:01:12 +0100
> "Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:
>
> > I think the first question is what do you have?
> >
> > How much memory do you have?
> >
> > What type of processor are you running on?
> >
> > Do you have an FPU? - There are already existing libraries that can do
> > mp3/mpeg4 decompression that don't need an fpu. For example:
> >
> > 	http://www.underbit.com/products/mad/ (GPL)
> > 	http://sourceforge.net/projects/ffmpeg (LGPL)
> >
> > My first step would be to try and get ecos to compile with one
> of the above
> > libraries and a simple test application. Then when/if you find that it
> > works, decide if you want to go the third-party codec route (being very
> > careful with the licences) or create you own codec. eCos has a POSIX API
> > layer that should make porting easier(!).
> >
> > -----Original Message-----
> > From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> > Sent: Friday 03 October 2003 08:43 AM
> > To: Retallack, Mark (Siemens)
> > Cc: ecos-discuss@sources.redhat.com
> > Subject: Re: [ECOS] mp3 or mpeg4 feasibility on eCos
> >
> >
> > so, what are the requirements if i have to develop an mpeg4/mp3 codec on
> > eCos..i know its a damn broad question to answer. but if i could get
> > some inputs , it would help me out to explore more..on this.
> >
> > right now, i just have a redboot and eCos kernel running on my target
> > board..
> >
> > thanks
> > satish
> >
> >
> >
> >
> > On Fri, 3 Oct 2003 08:34:51 +0100
> > "Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:
> >
> > > I see no reason why not.
> > >
> > > Have a look at:
> > >
> > > http://www.eetimes.com/story/OEG20000404S0024
> > > http://www.linuxdevices.com/news/NS6493913129.html
> > > http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> > > Sent: Friday 03 October 2003 08:13 AM
> > > To: ecos-discuss@sources.redhat.com
> > > Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> > >
> > >
> > > Hi,
> > >    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> > > are difficult to develop/port on eCos. is eCos made for such
> > > applications..?
> > >   what kind of applications are usually targeted to work on eCos..?
> > >
> > > thanks,
> > > saty
> > >
> > > --
> > > Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> > >
> > >
> > > --
> > > Before posting, please read the FAQ:
> http://sources.redhat.com/fom/ecos
> > > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> > >
> > >
> > > Siemens Traffic Controls is a division of Siemens plc. Registered No.
> > > 727817, England.
> > > Registered office: Siemens House, Oldbury, Bracknell,
> Berkshire, RG12 8FZ.
> >
> > >
> > > This communication contains information which is confidential and
> > > may also be privileged. It is for the exclusive use of the addressee.
> > > If you are not the addressee please note that any distribution,
> > > reproduction, copying, publication or use of this communication
> > > or the information in it is prohibited.  If you have received this
> > > communication in error, please contact us immediately and also
> > > delete the communication from your computer.
> > >
> >
> > --
> > Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> >
> >
> > Siemens Traffic Controls is a division of Siemens plc. Registered No.
> > 727817, England.
> > Registered office: Siemens House, Oldbury, Bracknell,
> Berkshire, RG12 8FZ.
> >
> > This communication contains information which is confidential and
> > may also be privileged. It is for the exclusive use of the addressee.
> > If you are not the addressee please note that any distribution,
> > reproduction, copying, publication or use of this communication
> > or the information in it is prohibited.  If you have received this
> > communication in error, please contact us immediately and also
> > delete the communication from your computer.
> >
>
> --
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
>
>
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>


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Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
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Re: [ECOS] mp3 or mpeg4 feasibility on eCos

[Satish Kumar]

well,
      My target board contains hardware based MPEG-4 encoder and MPEG-4
decoder and its controlled by ARM926EJ-S microprocessor..and supports
upto 64mb memory.
  so, whatz the exact role of software control over hardware using eCos..
can some one give me some more inputs..?

satish


On Fri, 3 Oct 2003 09:01:12 +0100 
"Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:

> I think the first question is what do you have?
> 
> How much memory do you have?
> 
> What type of processor are you running on?
> 
> Do you have an FPU? - There are already existing libraries that can do
> mp3/mpeg4 decompression that don't need an fpu. For example: 
> 
> 	http://www.underbit.com/products/mad/ (GPL)
> 	http://sourceforge.net/projects/ffmpeg (LGPL)
> 
> My first step would be to try and get ecos to compile with one of the above
> libraries and a simple test application. Then when/if you find that it
> works, decide if you want to go the third-party codec route (being very
> careful with the licences) or create you own codec. eCos has a POSIX API
> layer that should make porting easier(!). 
> 
> -----Original Message-----
> From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> Sent: Friday 03 October 2003 08:43 AM
> To: Retallack, Mark (Siemens)
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] mp3 or mpeg4 feasibility on eCos
> 
> 
> so, what are the requirements if i have to develop an mpeg4/mp3 codec on
> eCos..i know its a damn broad question to answer. but if i could get
> some inputs , it would help me out to explore more..on this.
> 
> right now, i just have a redboot and eCos kernel running on my target
> board..
> 
> thanks
> satish
> 
> 
> 
> 
> On Fri, 3 Oct 2003 08:34:51 +0100 
> "Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:
> 
> > I see no reason why not.
> > 
> > Have a look at:
> > 
> > http://www.eetimes.com/story/OEG20000404S0024
> > http://www.linuxdevices.com/news/NS6493913129.html
> > http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> > 
> > 
> > 
> > -----Original Message-----
> > From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> > Sent: Friday 03 October 2003 08:13 AM
> > To: ecos-discuss@sources.redhat.com
> > Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> > 
> > 
> > Hi,
> >    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> > are difficult to develop/port on eCos. is eCos made for such 
> > applications..?
> >   what kind of applications are usually targeted to work on eCos..?
> > 
> > thanks,
> > saty
> > 
> > -- 
> > Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> > 
> > 
> > -- 
> > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> > 
> > 
> > Siemens Traffic Controls is a division of Siemens plc. Registered No.
> > 727817, England. 
> > Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ.
> 
> > 
> > This communication contains information which is confidential and 
> > may also be privileged. It is for the exclusive use of the addressee. 
> > If you are not the addressee please note that any distribution, 
> > reproduction, copying, publication or use of this communication 
> > or the information in it is prohibited.  If you have received this 
> > communication in error, please contact us immediately and also 
> > delete the communication from your computer. 
> > 
> 
> -- 
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> 
> 
> Siemens Traffic Controls is a division of Siemens plc. Registered No.
> 727817, England. 
> Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ. 
> 
> This communication contains information which is confidential and 
> may also be privileged. It is for the exclusive use of the addressee. 
> If you are not the addressee please note that any distribution, 
> reproduction, copying, publication or use of this communication 
> or the information in it is prohibited.  If you have received this 
> communication in error, please contact us immediately and also 
> delete the communication from your computer. 
> 

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

Re: [ECOS] mp3 or mpeg4 feasibility on eCos

[Daniel Morris]

An overview of the recently released Rio Karma Ogg Vorbis player can be 
found in the news items at:-

http://www.ecoscentric.com/index.shtml

 Daniel

On Fri, Oct 03, 2003 at 08:34:51AM +0100, Retallack, Mark (Siemens) wrote:
> I see no reason why not.
> 
> Have a look at:
> 
> http://www.eetimes.com/story/OEG20000404S0024
> http://www.linuxdevices.com/news/NS6493913129.html
> http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> 
> 
> 
> -----Original Message-----
> From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> Sent: Friday 03 October 2003 08:13 AM
> To: ecos-discuss@sources.redhat.com
> Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> 
> 
> Hi,
>    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> are difficult to develop/port on eCos. is eCos made for such 
> applications..?
>   what kind of applications are usually targeted to work on eCos..?
> 
> thanks,
> saty
> 
> -- 
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> 
> 
> Siemens Traffic Controls is a division of Siemens plc. Registered No.
> 727817, England. 
> Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ. 
> 
> This communication contains information which is confidential and 
> may also be privileged. It is for the exclusive use of the addressee. 
> If you are not the addressee please note that any distribution, 
> reproduction, copying, publication or use of this communication 
> or the information in it is prohibited.  If you have received this 
> communication in error, please contact us immediately and also 
> delete the communication from your computer. 
> 
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss

-- 
%<-------------------------------------------------------------------------
 Daniel Morris   http://www.eCosCentric.com    The eCos and RedBoot experts

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
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RE: [ECOS] mp3 or mpeg4 feasibility on eCos

[Robert Cragie]

MP3 codecs can easily be implemented in software where the target CPU has
enough MIPS to handle the numerical processing required. Even then, it would
work better on a CPU with some sort of DSP-like acceleration, e.g.
multiplier-accumulator etc. Having the right peripheral support on your
target is also very important for streaming audio in and out of the device.

MPEG-4 video requires much more processing power and may often use dedicated
hardware acceleration or a fast DSP in embedded applications (take a look at
set-top-box embedded processors to give you an idea). Similarly, hardware
support for frame capture and frame buffering is necessary for video input
and output respectively.

The use of these codecs on an embedded system is different and often custom
to, say, on a PC, where the OS normally has supporting libraries to
facilitate audio and video I/O, for example, Microsoft's DirectX on
Microsoft Windows. Also, the power of the hardware running in a typical PC
these days (especially in the graphics area) is much more than you will find
in an embedded system.

Something like the Compaq IPAQ might be an interesting choice for trying to
get MP3 working under eCos if you can get 'under the hood' and understand
its design.

Robert Cragie, Design Engineer
_______________________________________________________________
Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
http://www.jennic.com  Tel: +44 (0) 114 281 2655
_______________________________________________________________

> -----Original Message-----
> From: ecos-discuss-owner@sources.redhat.com
> [mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of Satish Kumar
> Sent: 03 October 2003 08:43
> To: Retallack, Mark (Siemens)
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] mp3 or mpeg4 feasibility on eCos
>
>
> so, what are the requirements if i have to develop an mpeg4/mp3 codec on
> eCos..i know its a damn broad question to answer. but if i could get
> some inputs , it would help me out to explore more..on this.
>
> right now, i just have a redboot and eCos kernel running on my target
> board..
>
> thanks
> satish
>
>
>
>
> On Fri, 3 Oct 2003 08:34:51 +0100
> "Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:
>
> > I see no reason why not.
> >
> > Have a look at:
> >
> > http://www.eetimes.com/story/OEG20000404S0024
> > http://www.linuxdevices.com/news/NS6493913129.html
> > http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> >
> >
> >
> > -----Original Message-----
> > From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> > Sent: Friday 03 October 2003 08:13 AM
> > To: ecos-discuss@sources.redhat.com
> > Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> >
> >
> > Hi,
> >    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> > are difficult to develop/port on eCos. is eCos made for such
> > applications..?
> >   what kind of applications are usually targeted to work on eCos..?
> >
> > thanks,
> > saty
> >
> > --
> > Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> >
> >
> > --
> > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> >
> >
> > Siemens Traffic Controls is a division of Siemens plc. Registered No.
> > 727817, England.
> > Registered office: Siemens House, Oldbury, Bracknell,
> Berkshire, RG12 8FZ.
> >
> > This communication contains information which is confidential and
> > may also be privileged. It is for the exclusive use of the addressee.
> > If you are not the addressee please note that any distribution,
> > reproduction, copying, publication or use of this communication
> > or the information in it is prohibited.  If you have received this
> > communication in error, please contact us immediately and also
> > delete the communication from your computer.
> >
>
> --
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
>
>
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

RE: [ECOS] mp3 or mpeg4 feasibility on eCos

[Retallack, Mark (Siemens)]

I think the first question is what do you have?

How much memory do you have?

What type of processor are you running on?

Do you have an FPU? - There are already existing libraries that can do
mp3/mpeg4 decompression that don't need an fpu. For example: 

	http://www.underbit.com/products/mad/ (GPL)
	http://sourceforge.net/projects/ffmpeg (LGPL)

My first step would be to try and get ecos to compile with one of the above
libraries and a simple test application. Then when/if you find that it
works, decide if you want to go the third-party codec route (being very
careful with the licences) or create you own codec. eCos has a POSIX API
layer that should make porting easier(!). 

-----Original Message-----
From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
Sent: Friday 03 October 2003 08:43 AM
To: Retallack, Mark (Siemens)
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] mp3 or mpeg4 feasibility on eCos


so, what are the requirements if i have to develop an mpeg4/mp3 codec on
eCos..i know its a damn broad question to answer. but if i could get
some inputs , it would help me out to explore more..on this.

right now, i just have a redboot and eCos kernel running on my target
board..

thanks
satish




On Fri, 3 Oct 2003 08:34:51 +0100 
"Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:

> I see no reason why not.
> 
> Have a look at:
> 
> http://www.eetimes.com/story/OEG20000404S0024
> http://www.linuxdevices.com/news/NS6493913129.html
> http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> 
> 
> 
> -----Original Message-----
> From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> Sent: Friday 03 October 2003 08:13 AM
> To: ecos-discuss@sources.redhat.com
> Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> 
> 
> Hi,
>    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> are difficult to develop/port on eCos. is eCos made for such 
> applications..?
>   what kind of applications are usually targeted to work on eCos..?
> 
> thanks,
> saty
> 
> -- 
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> 
> 
> Siemens Traffic Controls is a division of Siemens plc. Registered No.
> 727817, England. 
> Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ.

> 
> This communication contains information which is confidential and 
> may also be privileged. It is for the exclusive use of the addressee. 
> If you are not the addressee please note that any distribution, 
> reproduction, copying, publication or use of this communication 
> or the information in it is prohibited.  If you have received this 
> communication in error, please contact us immediately and also 
> delete the communication from your computer. 
> 

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>


Siemens Traffic Controls is a division of Siemens plc. Registered No.
727817, England. 
Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ. 

This communication contains information which is confidential and 
may also be privileged. It is for the exclusive use of the addressee. 
If you are not the addressee please note that any distribution, 
reproduction, copying, publication or use of this communication 
or the information in it is prohibited.  If you have received this 
communication in error, please contact us immediately and also 
delete the communication from your computer. 



-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

Re: [ECOS] mp3 or mpeg4 feasibility on eCos

[Satish Kumar]

so, what are the requirements if i have to develop an mpeg4/mp3 codec on
eCos..i know its a damn broad question to answer. but if i could get
some inputs , it would help me out to explore more..on this.

right now, i just have a redboot and eCos kernel running on my target
board..

thanks
satish




On Fri, 3 Oct 2003 08:34:51 +0100 
"Retallack, Mark (Siemens)" <mark.retallack@siemens.com> wrote:

> I see no reason why not.
> 
> Have a look at:
> 
> http://www.eetimes.com/story/OEG20000404S0024
> http://www.linuxdevices.com/news/NS6493913129.html
> http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm
> 
> 
> 
> -----Original Message-----
> From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
> Sent: Friday 03 October 2003 08:13 AM
> To: ecos-discuss@sources.redhat.com
> Subject: [ECOS] mp3 or mpeg4 feasibility on eCos
> 
> 
> Hi,
>    Can someone let me know, why mp3 or mpeg-4 kind middleware`s
> are difficult to develop/port on eCos. is eCos made for such 
> applications..?
>   what kind of applications are usually targeted to work on eCos..?
> 
> thanks,
> saty
> 
> -- 
> Satish Kumar <satish@bvt.sc.sanyo.co.jp>
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> 
> 
> Siemens Traffic Controls is a division of Siemens plc. Registered No.
> 727817, England. 
> Registered office: Siemens House, Oldbury, Bracknell, Berkshire, RG12 8FZ. 
> 
> This communication contains information which is confidential and 
> may also be privileged. It is for the exclusive use of the addressee. 
> If you are not the addressee please note that any distribution, 
> reproduction, copying, publication or use of this communication 
> or the information in it is prohibited.  If you have received this 
> communication in error, please contact us immediately and also 
> delete the communication from your computer. 
> 

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>


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RE: [ECOS] mp3 or mpeg4 feasibility on eCos

[Retallack, Mark (Siemens)]

I see no reason why not.

Have a look at:

http://www.eetimes.com/story/OEG20000404S0024
http://www.linuxdevices.com/news/NS6493913129.html
http://news.zdnet.co.uk/business/0,39020645,2108278,00.htm



-----Original Message-----
From: Satish Kumar [mailto:satish@bvt.sc.sanyo.co.jp]
Sent: Friday 03 October 2003 08:13 AM
To: ecos-discuss@sources.redhat.com
Subject: [ECOS] mp3 or mpeg4 feasibility on eCos


Hi,
   Can someone let me know, why mp3 or mpeg-4 kind middleware`s
are difficult to develop/port on eCos. is eCos made for such 
applications..?
  what kind of applications are usually targeted to work on eCos..?

thanks,
saty

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Satish Kumar <satish@bvt.sc.sanyo.co.jp>


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