Bug: ffmpeg consumer constant failure - cannot allocate memory about server HOT 4 OPEN

I'm struggling to reproduce this, the command provided above does not work with ffmpeg 4.4, which is what ubuntu 22.04 uses by default.

from server.

I use ffmpeg 6.1.1 built from source with NVIDIA GPU. The workflow is following:

1. Install NVIDIA driver
2. Install CUDA from https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#ubuntu
3. Build from source FFMPEG with all required modules and CasparCG. Use this file
   install_direct_6.1.1.sh.zip
   as a reference and change INSTALL_PATH to point your project location.

from server.

I did a test also with v2.4.0-stable from yesterday and same error appeared.
Please find attached the log, where I started 5 channels with no fifo_size and buffer_size and 4 of them terminated with "Cannot allocate memory" error.
nohup.out.zip

from server.

I just ran the same output with a random input video directly in ffmpeg and got the same issue.

From the final comment in the trac thread you posted

[comment:26](https://trac.ffmpeg.org/ticket/6463#comment:26) by Marton Balint, [5 years ago](https://trac.ffmpeg.org/timeline?from=2019-03-17T00%3A10%3A58%2B02%3A00&precision=second)

It is most probably not a memory issue, simply there is not enough space in the output fifo. Error message is a bit misleading. Try increasing the fifo size on the output.

Does not seem to be an issue with casparcg? Could you try the same test.

from server.