[FFmpeg-devel] [libav-devel] ESA Summer of Code in Space 2011

Michael Niedermayer michaelni at gmx.at
Sun Jul 10 01:04:37 CEST 2011


On Sat, Jul 09, 2011 at 03:54:05PM -0700, Kieran Kunhya wrote:
> 
> 
> --- On Sat, 9/7/11, Michael Niedermayer <michaelni at gmx.at> wrote:
> 
> > From: Michael Niedermayer <michaelni at gmx.at>
> > Subject: Re: [FFmpeg-devel] [libav-devel] ESA Summer of Code in Space 2011
> > To: "FFmpeg development discussions and patches" <ffmpeg-devel at ffmpeg.org>
> > Date: Saturday, 9 July, 2011, 23:09
> > On Sat, Jul 09, 2011 at 09:26:25PM
> > +0200, Stefano Sabatini wrote:
> > > On date Wednesday 2011-07-06 20:11:33 +0200, Reimar
> > Döffinger encoded:
> > > > On Wed, Jul 06, 2011 at 08:51:16AM -0700, Ronald
> > S. Bultje wrote:
> > > > > On Wed, Jul 6, 2011 at 4:54 AM, Stefano
> > Sabatini
> > > > > <stefano.sabatini-lala at poste.it>
> > wrote:
> > > > > > Hi, ESA (European Space Agency), is
> > organizing a Summer Of Code
> > > > > > project, based on the same concept of
> > GSoC. Check info at:
> > > > > > http://sophia.estec.esa.int/socis2011/
> > > > > > http://sophia.estec.esa.int/socis2011/timeline
> > > > > >
> > > > > > Coding period is from the beginning of
> > August to the end of October.
> > > > > >
> > > > > > Organizations application deadline is
> > on 15th of July, so there is not
> > > > > > much time to decide.
> > > > > >
> > > > > > Is FFmpeg really suited for space
> > exploration? (I think so ;-))
> > > > > > Do we have mentors/proposals?
> > > > > >
> > > > > > We could possibly re-use some of the
> > ideas for GSoC.
> > > > > >
> > > > > > PS Regarding the FFmpeg/Libav split, we
> > may decide to run two distinct
> > > > > > applications or go togheter as we did
> > for GSoC depending on what
> > > > > > people prefer, please let's avoid
> > flames.
> > > > > 
> > > > > Proposals can be the same as for GSoC. Same
> > for mentors. The projects
> > > > > are largely the same (whether you like it or
> > not), so joint
> > > > > application seems easier.
> > > > > 
> > > > > You can admin, I wonder how you'll word the
> > application to make
> > > > > FFmpeg/Libav relate to space. :-).
> > > > Well, some time ago I read a video decoder test
> > and there FFmpeg had the
> > > > best error concealment by far. So that's sure a
> > reason to use it
> > > > if you ever want to transfer video through space
> > with a normal codec ;-)
> > > 
> > > Well I'll write something of the kind:
> > > 
> > > |Describe in a few word your open-source project, why
> > you would like to
> > > |participate to SOCIS and what you hope to gain by
> > participating.
> > > |Space relevance (mandatory): *
> > > |Describe your project´s connection with space
> > activities.
> > > |
> > > |Communication is a key aspect in space programs,
> > being able to
> > > |communicate effectively and reliably, even in extreme
> > conditions, is
> > > |a fundamental prerequisite.
> > > |
> > > |FFmpeg/Libav is highly focused on providing the most
> > possible
> > > |reliable and robust multimedia support, and a special
> > emphasis is
> > > |given on optimization issues, making it especially
> > suited for
> > > |computing environments with strict memory and power
> > requirements.
> > > |
> > > |By partecipating to SOCIS, FFmpeg/Libav may extend
> > its capabilities
> > > |and focus even more on robustness/reliability
> > features making it the
> > > |ideal candidate for multimedia/communication
> > mission-critical
> > > |space-related tasks.
> > > 
> > > ...
> > > 
> > > Since I read no more replies and there are no
> > objections, I'm going to
> > > create a joint FFmpeg/Libav application, for which
> > I'll act as
> > > administrator (SOCIS requires a single administrator,
> > but an
> > > unofficial backup admin is welcome).
> > > 
> > > It is fundamental for the application success to have
> > a page of
> > > ideas/proposals.
> > > 
> > > I'm going to create a new page based on this:
> > > http://wiki.multimedia.cx/index.php?title=FFmpeg_/_Libav_Summer_Of_Code_2011
> > > 
> > > *Mentors and proposals are welcome*.
> > 
> > Some proposals:
> > 
> > * design & add metadata that specifies the amount of
> > differences caused
> >   during compression. For scientific use lossy
> > compression is otherwise
> >   difficult. (also research first if existing
> > solutions exist and
> >   implementg / use them if so)
> > 
> > * Write code that when feeded with several images (which
> > may be taken
> >   by a space probe from its surroundings) reliably
> > calculates
> >   its position. And additionally identifies objects
> > that are not its
> >   database
> >   (and make sure we dont reimplement existing free
> > solutions here)
> > 
> > * Better error concealment and maybe FEC for low latency
> > space
> >   comunication
> > 
> > [...]
> > 
> > -- 
> > Michael     GnuPG fingerprint:
> > 9FF2128B147EF6730BADF133611EC787040B0FAB
> > 
> > The real ebay dictionary, page 2
> > "100% positive feedback" - "All either got their money back
> > or didnt complain"
> > "Best seller ever, very honest" - "Seller refunded buyer
> > after failed scam"
> > 
> 
> I would also be interested in FEC (and will add to the list). There are no 
> good software libraries that can do FEC as far as I can tell.

noe in
git clone git://git.ffmpeg.org/michael

improvments / patches / requests to pull, are all welcome!

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Opposition brings concord. Out of discord comes the fairest harmony.
-- Heraclitus
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