[Live-devel] Support for VP8 packetization

[Morten S. Laursen]

Ross,
Yes I was referring to the packing of VP8 payloads as done in the
referenced draft. If that is already implemented and used automatically the
problem must lie elsewhere as I am using the VP8VideoRTPSink class as you
are referring to.
As I understand the payload packing it should split the frames on image
block boundaries and therefore a failed packet should only result in that
block failing. However the behavior I'm seeing is that in the case of a
failed packet the rest of the frame is corrupt. Therefore I assumed that
the whole frame was packaged as one, instead of the sub-blocks in
individual packets?
Kind regards
Morten S. Laursen


2014-02-19 11:19 GMT+01:00 Ross Finlayson <finlayson at live555.com>:

> I am testing with my own live555 based server and openRTSP as the client.
> I would therefore like to apply packetization in order to limit the
> influence of transmission errors. Is there any support for packetization
> with VP8 video streaming such as what google suggests in
> http://tools.ietf.org/html/draft-ietf-payload-vp8 or something similar.
>
>
> Morten,
>
> I'm a bit puzzled by your question.  By "packetization", are you referring
> just to the normal packing of VP8 payloads into RTP packets (as described
> in the Internet Draft that you referenced)?  If so, then that is done
> automatically by our software - in particular, by the "VP8VideoRTPSink"
> class, which your "live555 based server" should already be using (in your
> "createNewRTPSink()" virtual function implementation, assuming that you're
> streaming via unicast).
>
> Or are you referring to something else?
>
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
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> live-devel at lists.live555.com
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>
>
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