[Telepathy] Roadmap H264 SVC support ?

[Sjoerd Simons]

On Thu, Jan 14, 2010 at 12:53:33PM +0100, Toby Mangold wrote:
> Hi,
> 
> while struggling with strange Codec issues in Video Chats with Gtalk (windows
> clients on the opposite end; I'm running Empathy 2.29.5 on Debian unstable),
> I've googled and read a lot of stuff and I'm starting to catch up 
> with all the history of Gtalk Video support and the H264 SVC codec issue.
> 
> (By the way, my present issue: Audio is fine, Video preview is fine, I'm
> getting remote video, but remote is not getting my video. Gstreamer is
> equipped with H264 encoder and decoder and logs are not complaining about
> missing codecs or a webcam issue. There' just a warning about renaming
> something JPEG2000 to H264 ??? I've to keep on tracing ....)

See the mail Olivier posted yesterday :)

> Now, video for Gtalk was enabled by Goggle adding H264 AVC support, which is
> given on Linux by x264 (encode) and ffmpeg (decode), right ?

Yes

> Are there any plans or kind of a roadmaps to add H264 SVC support to
> Empathy/Telepathy/Farsight ?  Of course, it's mainly an issue of getting such
> a codec into gstreamer and not the task of Empathy/Telepathy developers, but
> maybe someone on this list knows the latest status.

Once gstreamer has the codec (both, an encoder and decoder) and also support
for payloading and depayloading it, Empathy/Telepathy/Farsight will
automagically use it.

> I'm asking, because I've justed stumbled across the Open SVC implementation,
> http://opensvcdecoder.sourceforge.net/, which has been demonstrated to work
> in mplayer. (But unfortunately they didn't add this codec to ffmpeg - they
> replaced ffmpeg completely - bad luck).  Does anybody know of similar
> approaches getting H264 SVC into ffmpeg, or something equivalent regarding
> gstreamer codec support ?

GStreamer using a codec directly instead of going through ffmpeg is usually
nicer anyway :). If this is just a decoder it doesn't help us though...

  Sjoerd
-- 
Mediocrity finds safety in standardization.
		-- Frederick Crane