[X2go-dev] X2Go media player for redirected video [was Re: EyeOS]

[cedric cavret]

Hello, 
I'm would like to suggest something to complete the third solution.
Why don't we offer to the user the possibility to encode with a video
stream a particular window.
The server don't have to decide to encode or not.
You decide to encode only when it' absolutly necessary by a right click
on the window and finaly a choice in a menu.

regards,

cédric cavret

ps : sorry for my poor english. I just discovered x2go a couple of
months ago and i'm very insterested in it's developpement.
Thanks to the developpers for the great job.


Le mercredi 23 février 2011 à 13:12 +0100, Alexander Wuerstlein a
écrit :

> On 11-02-23 05:59, John A. Sullivan III <jsullivan at opensourcedevel.com> wrote:
> > On Tue, 2011-02-22 at 23:23 -0500, Gerry Reno wrote:
> > > On 02/22/2011 10:16 PM, John A. Sullivan III wrote:
> > > > On Tue, 2011-02-22 at 21:09 -0500, Gerry Reno wrote:
> > > >   
> > > > <big snip>
> > > >> And rather than trying to pass the actual content around it's just seems
> > > >> easier to post the content on a webserver that the users can access from
> > > >> their client machines.
> > > >>     
> > > > This is where I disagree.  When we have control of the content and
> > > > environment that works.  But that's not our environment.  We want as
> > > > seamless a user experience as possible whether they are browsing the
> > > > Internet and hit a video, clicking on an email attachment that happens
> > > > to be video, or viewing some kind of embedded video content.  We expect
> > > > our clients to be able to work as closely as possible to their physical
> > > > environment in their virtual environment.  The onus is on us to make
> > > > that possible as transparently as possible without changing their
> > > > procedures.  That may not be true of all deployments but it is true of
> > > > ours - John
> > > >   
> > > 
> > > Right now there is no simple way to do this with x2go or any of the
> > > other remote access technologies.
> > Actually, although I have not used it, I believe Citrix is doing
> > something like this.  Whatever EyeOS is doing works very well.  HP is
> > taking a different approach by adapting their transport to the nature of
> > the video being transmitted.  If what I propose is feasible, we have a
> > possible solution.
> 
> There are basically 2 solutions to this problem (actually 3):
> - Adapt the software playing the media to stream the raw data over to
>   the thin-client without reencoding and play that stream on the
>   thin-client. Pros: same quality as local, Cons: possibly needs a lot
>   of bandwith and processing power on the thin-client. Only works with
>   adapted media-players.
> - Adapt some video-API like XVideo to re-encode every video-stream its
>   asked to play into some transfer format which is encodable in realtime
>   and sufficiently small in bandwith usage. Pros: thin-clients may be
>   smaller, works with every software that uses standard Video-APIs (so
>   possibly not flash...), lower bandwith usage. Cons: Possibly wouldn't
>   work with flash, needs a lot of processing power on the server,
>   possibly too much for high quality or larger window sizes of the video
> - Use some heuristics to recognize rapidly changing window contents
>   (which probably is either video or a game). Encode that window content
>   into a video stream. Pros: works with every software, including flash,
>   games and other weird stuff (i guess there will be corner cases
>   though). Cons: unbelievably ugly, lots of server load, possibly crappy
>   quality.
> 
> > > For true transparency the media would have to be played on the remote
> > > desktop media player but then the performance is bad.
> > > 
> > > To get satisfactory performance you have to use the media players on the
> > > users machine but then you would not have seamless experience.
> > It is not entirely seamless but, at least for our purposes, it is much
> > better than saying, "save the video to disk, transfer the file to your
> > local computer, now open it using your local media player." Let's do all
> > of that automatically for them.  That may not work well for your
> > environment but it would for ours.
> 
> The approaches described above practically preclude any scenario where
> playing videos would be absolutely seamless. Practically all solutions
> that do not take the third approach do only work with a few media
> players (in practice: their "special" Windows Media Player and their
> "special" Flash). I could be wrong and there are better solutions out
> there, but everything I have seen so far suggests that there is no nice
> and easy way...
> 
> 
> 
> 
> Ciao,
> 
> Alexander Wuerstlein.
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