[FFmpeg-devel] [PATCH] avformat: Add Pro-MPEG CoP #3-R2 FEC protocol

Michael Niedermayer michael at niedermayer.cc
Wed May 25 01:49:09 CEST 2016

On Wed, May 18, 2016 at 04:18:11PM +0200, Vlad Tarca wrote:
> >
> > Have you tested this on actual receivers?
> > Are you aware this won't work effectively because of the bursty nature of
> > FFmpeg?
> >
> > Kieran
> >
> Hello,
> I tested the FFmpeg version on a software receiver, not a hardware one. I
> initially implemented this for one of my applications based on VideoLAN's
> multicat and that version seemed to work well with hardware receivers.
> Now that you mention it I can see there are discussions about the UDP burst
> issues. Do you know if there are any planned improvements?

there was a patch, ive applied and fixed the worst of it
you can now prevent bursts with -packet_gap

What is missing now is to add either some -bandwidth option or even
better make udp use the bitrate or PCR/SCR to time the outputted udp
packets. Which would be nicer than the packet_gap based system

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Let us carefully observe those good qualities wherein our enemies excel us
and endeavor to excel them, by avoiding what is faulty, and imitating what
is excellent in them. -- Plutarch
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