On Thu, 5 Nov 2020 at 22:41, Andriy Gelman <[email protected]> wrote:
> 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 > I've sent some patches to the mailing list that add an option to periodically repeat the headers in nut: https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=2709 With the series, the following works for me: ./ffmpeg -i /dev/video0 -codec:v rawvideo -f nut -header_period 15 zmq:tcp://127.0.0.1:10000 ./ffplay -f nut -i zmq:tcp://127.0.0.1:10000 Let me know if you can also test. -- Andriy _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
