Re: [rtcweb] Screen sharing

FWIW, that's how we've been doing desktop sharing in Jitsi for quite a
while now and the feedback is quite positive. Quality more than
satisfactory and bandwidth is way better than what you get with things
like VNC.

-- 
http://jitsi.org

On 02.12.11 14:49, Stefan Håkansson LK wrote:
> On 12/02/2011 01:31 AM, Henry Sinnreich wrote:
>> Can remote meeting attendees read the print on say a legal document
>> under discussion?
> All I can say is that in the little testing we did it looks quite OK. If 
> you want to you can test our using our lib; depending on what GStreamer 
> plug-ins you add Theora (no plug-in added), VP8 or H.264 would be used.
> 
> But probably Aron's/Justin's experiences are more valid as those are 
> based on live services if I understand correctly.
> 
> My conclusion is that using video for screen sharing can be a quick way 
> forward.
>>
>> If yes for commercial grade quality (I still have doubts), how is the
>> codec tweaking enabled via the API?
> I proposed that a "screen" option could be added to the API (now "audio" 
> and "video" is there). If "screen" is selected, the codec parameters 
> could be tweaked accordingly (we have no tweaking in our current lib though)
>>
>> Thanks, Henry
>>
>>
>> On 12/1/11 5:05 PM, "Aron Rosenberg" <arosenberg@logitech.com> wrote:
>>
>>     Screen sharing works great over H.264 or VP8 for us. You have to
>>     tweak the codec encoding parameters and FPS a bit, but you get great
>>     quality even on text.
>>
>>     Aron Rosenberg
>>     LifeSize, a division of Logitech
>>
>>
>>
>>     On Thu, Dec 1, 2011 at 11:18 AM, Henry Sinnreich
>>     <henry.sinnreich@gmail.com> wrote:
>>
>>         Hi Stefan,
>>
>>         Video sucks for screen sharing, displaying documents or even
>>         plain bullet
>>         slides.
>>         Displaying the screen and documents is in a completely other
>>         league IMO.
>>
>>         Thanks, Henry
>>
>>
>>         On 12/1/11 9:19 AM, "Stefan Håkansson LK"
>>         <stefan.lk.hakansson@ericsson.com>
>>         wrote:
>>
>>         >  Related to use-case 4.2.7 "Simple Video Communication Service with
>>         >  sharing"
>>         >
>>         (<http://datatracker.ietf.org/doc/draft-ietf-rtcweb-use-cases-and-requirements
>>         >  /?include_text=1>)
>>         >  we had a student experimenting a bit.
>>         >
>>         >  Essentially, the screen was treated as another video source
>>         (just as a
>>         >  camera), and was transmitted to the other end as a MediaStream
>>         over a
>>         >  PeerConnection.
>>         >
>>         >  The implementation of getUserMedia allowed the screen to be
>>         selected as
>>         >  a video source.
>>         >
>>         >  Perhaps this could be a way forward for meeting this use-case? And
>>         >  perhaps "screen" should be defined as a valid options argument to
>>         >  getUserMedia?
>>         >
>>         >  (there is some more info about what the student did at
>>         >
>>         <https://labs.ericsson.com/developer-community/blog/screen-sharing>
>>         <https://labs.ericsson.com/developer-community/blog/screen-sharing>>)
>>         >
>>         >  Stefan
>>         >  _______________________________________________
>>         >  rtcweb mailing list
>>         >  rtcweb@ietf.org
>>         >  https://www.ietf.org/mailman/listinfo/rtcweb
>>
>>
>>         _______________________________________________
>>         rtcweb mailing list
>>         rtcweb@ietf.org
>>         https://www.ietf.org/mailman/listinfo/rtcweb
>>
>>
>>
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>>
> 
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