[FFmpeg-user] live link in a video?

[Spencer Graves]

On 7/6/2014 9:34 AM, Oliver Fromme wrote:
> Spencer Graves wrote:
>   > On 7/6/2014 2:34 AM, Oliver Fromme wrote:
>   > > Spencer Graves wrote:
>   > > >        Is there a way to include a live link in a video, so a user could
>   > > > stop the video, click on the link, and have it go there?  If yes, how?
>   > > >
>   > > >        For example, is there a way to include a live link in a png (or
>   > > > similar image file) that can be preserved by ffmpeg?
>   > >
>   > > No, the PNG standard does not support that.
>   > >
>   > > However, URLs can be included in general-purpose TXT chunks
>   > > inside a PNG file, but I'm not aware of any software that
>   > > would interpret this as a "live link" that would be preserved
>   > > as such during conversion.
>   > >
>   > > Another possibility, of course, would be to include a QR code
>   > > or DataMatrix code in the image contents itself, but I assume
>   > > that's not what you have in mind.
>   >
>   >
>   >        Thanks for this.  Might it be feasible to include such in a
>   > subtitle?
>
> You mean a QR code (or similar)?  Yes, certainly, but it will
> not be a "live link" that you can click.  A player would have
> to implement such a feature, and I'm not aware of any player
> (software nor hardware) that does that.
>
> The only thing you can do with a QR code is to scan it with a
> smartphone (then your smartphone's browser will open the linked
> web page), or -- if you want to open the webpage on your PC --
> make a screen shot and feed it into an online decoder like
> xing.org or webqr.com (there are hundreds like these).  There
> are also browser plugins (for Firefox and Opera, maybe others,
> too).
>
> But all of that is not exactly what you want, according to
> your description.  The only thing that comes close is the way
> Youtube (and some other online video sites) embed links into
> their videos, but these only work with Youtube's own player.
> I don't think that there is any generic video software that
> supports this.  ffmpeg certainly does not.
>
> Best regards
>     Oliver


       Thanks very much for your help on this.


       Spencer
>


-- 
Spencer Graves, PE, PhD
President and Chief Technology Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph:  408-655-4567
web:  www.structuremonitoring.com