[Freeswitch-users] H264 transcoding

Mon Jul 30 18:26:26 MSD 2012

cool

On Fri, Jul 27, 2012 at 8:10 PM, Seven Du <dujinfang at gmail.com> wrote:
> I patched libvlc and it can now decode any video vlc supported and encode
> with x264 and send to any sip phone. Specifically I'm trying to use it to
> play a 1080p stream and resize to CIF or D1 so a video phone will
> accept(Sending 1080p will cause some phones to reboot  :( ).
>
> Still need a lot of code to make it working neatly, however, I might can do
> a demo on ClueCon and @William if you'd like to review the code and merge
> into tree I'll happy to contribute that later.
>
> On Friday, July 27, 2012 at 2:43 PM, William King wrote:
>
> libvlc is LGPL http://www.videolan.org/press/lgpl.html and there is now a
> mod_vlc(though it doesn't yet support video streams). The user can choose to
> build vlc with only the LGPL components or add the more 'adverse' modules.
> In none of the LGPL packages of libvlc is ffmpeg enabled, but there is a
> module for libvlc for ffmpeg. http://wiki.videolan.org/FFmpeg
>
> The only pieces now may just be the FS side of things for video.
>
> William King
> Senior Engineer
> Quentus Technologies, INC
> 1037 NE 65th St Suite 273
> Seattle, WA 98115
> Main:   (877) 211-9337
> Office: (206) 388-4772
> Cell:   (253) 686-5518
> william.king at quentustech.com
>
>
> On 07/26/2012 08:46 PM, Anthony Minessale wrote:
>
> you would probably need to do something like make a mod for ffmpeg
> that protects you from the gpl then allow the user to build that lib
> on his own and choose at compile time to install patented or adverse
> licensed components.  No license rules prohibit an end user from
> combining code only distributors.
>
> but even then we need a bunch of code to write.
>
>
> On Thu, Jul 26, 2012 at 10:41 PM, curriegrad2004
> <curriegrad2004 at gmail.com> wrote:
>
> Ken,
>
> If you think those guys over at x264 will ever change the license from
> GPL to LGPL, you're just dreaming the pie in the sky...
>
> In short, don't even think about it ;P
>
> On Thu, Jul 26, 2012 at 8:19 PM, Ken Rice <krice at freeswitch.org> wrote:
>
> we can not and will not use GPL software, the license is not compatible with
> the GPL and would polute the codebase with additional restrictions that are
> not wanted or needed. now if someone could get them to change the license or
> atleast give us a license under better terms such as the LGPL or the MPL
> then the license issue would be null
>
> Ken
> Sent from my iPad
>
> On Jul 26, 2012, at 7:45 PM, Terry Barnum <terry at digital-outpost.com> wrote:
>
> Use x264? http://en.wikipedia.org/wiki/X264
>
> On Jul 26, 2012, at 4:53 PM, Ken Rice wrote:
>
> Is it possible sure... Is ot probably to happen anytime soon? Not until the
> patents run out...
>
>
> On 7/26/12 5:04 PM, "yufei.tao" <yufei.tao at redembedded.com> wrote:
>
> Hi
>
> I am trying to decide if it is feasible to let FS do transcoding between
> different H264 formats for live video calls. This is because I've got
> SIP clients that both use H264 but with different formats and one (with
> a bad H264 decoder) has problems decoding H264 stream from the other.
> But each of these two clients communicate fine using H264 with a third
> client that uses ffmpeg. I'm thinking of adding a module which uses
> ffmpeg, so that it will transcode H264 between different parameters.
>
> I've got a few questions:
>
> 1. Is this feasible? I'm not looking at supporting many simultaneous calls.
> 2. What is involved in transcoding real-time video stream?
> 3. Anyone's done anything like this before?
>
> I'm new to FS and any suggestions would be very much appreciated!
>
> Yufei
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>


-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/
Twitter: http://twitter.com/FreeSWITCH_wire

AIM: anthm
MSN:anthony_minessale at hotmail.com
GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
IRC: irc.freenode.net #freeswitch

FreeSWITCH Developer Conference
sip:888 at conference.freeswitch.org
googletalk:conf+888 at conference.freeswitch.org
pstn:+19193869900