[gst-devel] G729 with gstreamer

[parveen.jain]

Thanks Marco,
This is really what I was looking for.

Best Regards,
Parveen Jain

-----Original Message-----
From: Marco Ballesio [mailto:gibrovacco at gmail.com] 
Sent: Thursday, December 02, 2010 12:58 PM
To: Discussion of the development of GStreamer
Subject: Re: [gst-devel] G729 with gstreamer

Hi,

On Thu, Dec 2, 2010 at 7:12 AM, parveen.jain <parveen.jain at one97.net> wrote:
> Hi All,
>
>   Does Gstreamer(or any of its plugin ) supports the G729 encoder/decoder?

There's an implementation base on the reference code. It isn't
anything distributed with GStreamer, but the elements have been tested
against a good variety of cases and works pretty well:

http://gitorious.org/gladstone

> Is yes, how is different from intel IPP library support of G729?

- gladstone is portable across architectures, IPP libraries work only
on Intel processors.

- gladstone has full sources available (even though you should really
ask to ITU-T in order to redistribute the reference code). IPP libs
are a "black box": if something doesn't work you'll have to beg Intel
for fixing it. The info reported here:

http://www.readytechnology.co.uk/open/ipp-codecs-g729-g723.1/

is misleading, as the codecs themselves are anyway closed source (try
to believe ;) ).

- IPP libraries are more optimised than the reference code, but there
are already a few patches in Gladstone to begin filling the gap.

- G729 BA (basically, with DTX support) for gladstone is arriving, I
just need a few sanity checks before submitting the patches (they
should get to gitorious this weekend, but no promises). Afair IPP
libraries don't have DTX support:

http://software.intel.com/en-us/forums/showthread.php?t=70652

Regards

>
>
>
> Regards,
>
> Parveen Jain
>
>
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