Skip to Content.
Sympa Menu

cc-metadata - Re: metadata fun

cc-metadata AT lists.ibiblio.org

Subject: discussion of the Creative Commons Metadata work

List archive

Chronological Thread  
  • From: Mark Fallu <brisvegas1 AT gmail.com>
  • To: discussion of the Creative Commons Metadata work <cc-metadata AT lists.ibiblio.org>
  • Subject: Re: metadata fun
  • Date: Fri, 22 Jul 2005 00:02:13 +1000

So what platform were you doing this work on? *nix, win, mac?


On 7/21/05, Nathan R. Yergler <nathan AT yergler.net> wrote:
> The work we did was mostly digital audio extraction and transcoding.
> When it worked, we were able to write some really slick Python code that
> did quite a bit in a small amount of code. The problem was that getting
> the code to work reliably on a single platform, or similarly
> cross-platform was a nightmare. Admittedly, the problem could be in the
> libraries that Pymedia itself wraps; we never dug deep enough to find
> out. We ran into problems such as CD-ROM drives reporting empty (when
> they weren't) or erring out mid-read and reporting empty. We also ran
> into stability problems with the transcoding functionality, to the point
> that we eventually bundled a command line encoder and called out to it
> from our Python code. Finally, Pymedia doesn't build (or didn't a few
> months ago, to the best of my knowledge) on Mac OS X, which makes it a
> less desirable target.
>
> I think Pymedia is an interesting project, and the developer was fairly
> responsive to mailing list inquiries. Unfortunately it didn't meet our
> expectations.
>
> Nathan
>
>
> Mark Fallu wrote:
>
> >Do you think you could publish more details of the specifics of the
> >work you did - the problems you encountered etc.
> >
> >Cheers,
> >
> >Mark
> >
> >On 7/21/05, Nathan R. Yergler <nathan AT yergler.net> wrote:
> >
> >
> >>I'm not familiar with MMPtyhon, but Pymedia isn't a suitable basis for
> >>building upon. I used it in developing a ccPublisher derivative for
> >>Jameno (http://jamendo.org), and it's fickle and buggy on it's best
> >>days. The mailing list has been slightly more active lately, so maybe
> >>some of these issues are being corrected.
> >>
> >>Nathan
> >>
> >>
> >>Mark Fallu wrote:
> >>
> >>
> >>
> >>>There are two python products that are interesting in this area:
> >>>
> >>>Pymedia - http://pymedia.org/ (based on ffmpeg can read / transcode
> >>>etc a variety of media files including mov.)
> >>>and
> >>>MMPython - http://sourceforge.net/projects/mmpython/ (a multimedia
> >>>metadata parser that can read all sorts of meta data eg. id3 and
> >>>quickitime atoms)
> >>>
> >>>Both of which would be a good basis for going forward and building an
> >>>app that can not only read the existing meta data - but can write the
> >>>metadata too. Usefully they are not targeted specifically at
> >>>Quicktime so would be a basis for a more generic system of multimedia
> >>>file metadata manipulation.
> >>>
> >>>The quicktime api documentation of MOOV atoms can be found here -
> >>>http://developer.apple.com/documentation/QuickTime/APIREF/-moov-.htm
> >>>(quicktime is just a container format - so the video stream has a
> >>>separate MOOV atom as does the video stream and the metadata etc)
> >>>
> >>>Quicktime file format specification here:
> >>>http://developer.apple.com/documentation/QuickTime/QTFF/index.html
> >>>
> >>>What we need is a standalone crossplatform app that can (in the manner
> >>>of ccpublisher) alter the metadata atom and leave the rest of the
> >>>quicktime file intact.
> >>>
> >>>Currently - we have to things like quicktime pro to make these
> >>>modifications - but that is really only suitable for manual use on
> >>>individual files on either windows or macs.
> >>>
> >>>I am more interested in a truly system that would allow users to
> >>>upload files to a server and edit the metadata through the web or to
> >>>batch process files on the desktop.
> >>>
> >>>Cheers,
> >>>
> >>>Mark
> >>>
> >>>
> >>>
> >>>On 7/21/05, Kevin Marks <cc AT mediagora.com> wrote:
> >>>
> >>>
> >>>
> >>>
> >>>>QT has a copyright field in it's general metadata. I put the CC license
> >>>>including link in that. eg
> >>>>
> >>>>http://homepage.mac.com/kevinmarks/bacon.mov
> >>>>
> >>>>Open in qt player to see the licence, which reads:
> >>>>
> >>>>This work is licensed under a <a rel="license"
> >>>>href="http://creativecommons.org/licenses/by-nc-sa/2.0/";>Creative
> >>>>Commons License</a>
> >>>>
> >>>>
> >>>>On Jul 20, 2005, at 9:01 PM, Jon Phillips wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>On Thu, 2005-07-21 at 13:33 +1000, Mark Fallu wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>>Hey folks,
> >>>>>>
> >>>>>>What is the current state of embedding CC metadata in Quicktime? Do
> >>>>>>you know if anyone has made a start on the .mov format?
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>It would be great to develop a library that would work on multiple
> >>>>>formats, and develop a generic system that could work for quicktime as
> >>>>>well to embed cc metadata.
> >>>>>
> >>>>>I did a google search, but couldn't find much (although I stayed at
> >>>>>under 100 searches). I'm sure Mike, or others could speak to this
> >>>>>better.
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>_______________________________________________
> >>>cc-metadata mailing list
> >>>metadata AT creativecommons.org
> >>>http://lists.ibiblio.org/mailman/listinfo/cc-metadata
> >>>
> >>>
> >>>
> >>>
> >>
> >>
>
>




Archive powered by MHonArc 2.6.24.

Top of Page