[FFmpeg-user] Nut + ZMQ + rawvideo

[Andriy Gelman]

Hi Sergei,

On Wed, 04. Nov 13:09, Online video wrote:
> Hi,
> 
> 
> I want to distribute uncompressed video to multiple separate processes
> using Nut format and ZMQ protocol.
> 
> 
> The first distributing process works for me without problems:
> 
> *c:\ff\ffmpeg.exe -i "source_link" -c:v rawvideo -c:a pcm_s16le -f nut
> "zmq:tcp://127.0.0.1:11111 <http://127.0.0.1:11111/>"*
> 
> [image: image.png]
> 
> 
> But I cannot accept this stream, the receiving process does not start:
> 
> *\ffmpeg.exe  -f nut -i "zmq:tcp://127.0.0.1:11111
> <http://127.0.0.1:11111/>" -c:v libx264 -preset:v fast -b:v 8000k -maxrate
> 8000k -bufsize 8000k -bf 2 -g 50 -keyint_min 50 -c:a aac -b:a 128k -f
> mpegts "udp://127.0.0.1:22222?pkt_size=1316
> <http://127.0.0.1:22222/?pkt_size=1316>"*
> 
> [image: image.png]
> After press CTRL-C:
> [image: image.png]
> 
> What can you advise to solve this problem? Perhaps, instead of NUT, there
> is another container format that allows you to transfer uncompressed
> streaming video to multiple recipients?
> 

It looks that the headers in the nut container are not repeated often enough. 
So if they are missed by the subscriber, the stream will not start to play.

I think it should be possible to periodically repeat the headers. I'll have a
look and send the patch to the mailing list.

-- 
Andriy