UDP stream - seems to stream but no image?

primetimepelin · July 10, 2019, 3:36pm

I want to stream internally through UDP and pick it up in VLC, the stream seems to work since it’s playing but I get no image at all.

I use: ADD 1 STREAM udp://localhost:5001 -codec:v libx264 -format mpegts -crf:v 18

Am I stupid? (Obviously yes, please help!)

didikunz · July 10, 2019, 4:00pm

That happens to me every day …and you are sure, that you also play anything on the channel, right?

primetimepelin · July 10, 2019, 4:18pm

Yep, playing and confirming playout through screen consumer

hreinnbeck · July 10, 2019, 6:09pm

-pix_fmt yuv420p - mentioned here a few times

rom1 · May 6, 2021, 9:55am

In 2.3 when I pass the command

ADD 1 STREAM udp://localhost:5001 -codec:v libx264 -format mpegts -crf:v 18 -pix_fmt yuv420p

response contains Unused option pix_fmt=yuv420p

[2021-05-06 11:51:55.272] [info]    Received message from Console:  ADD 1 STREAM udp://localhost:5001 -codec:v libx264 -format mpegts -crf:v 18 -pix_fmt yuv420p\r\n
#202 ADD OK
[2021-05-06 11:51:55.276] [info]    ffmpeg[udp://localhost:5001] Initialized.
[2021-05-06 11:51:55.278] [info]    [ffmpeg] [libx264 @ 000001D4E8C766C0] using SAR=1/1
[2021-05-06 11:51:55.278] [info]
[2021-05-06 11:51:55.279] [info]    [ffmpeg] [libx264 @ 000001D4E8C766C0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[2021-05-06 11:51:55.279] [info]
[2021-05-06 11:51:55.284] [info]    [ffmpeg] [libx264 @ 000001D4E8C766C0] profile High 4:2:2, level 3.2, 4:2:2, 8-bit
[2021-05-06 11:51:55.284] [info]
[2021-05-06 11:51:55.289] [warning] ffmpeg[udp://localhost:5001] **Unused option pix_fmt=yuv420p**