multifdsink/fdsrc from python socket ?

[Adrien Aubourg]

Heya !

Prior to the brand new version of Python which include the new asyncio module, I wanted to play a bit around a server/client streaming architecture using multifdsink and fdsrc.

If I use udpsink/udpsrc and tcpsink/tcpsrc, streamings work as expected. But if I use created socket (TCP connection) from Python asyncio module (or just with the Python socket module), I can't make it work anymore:

The sender sends gstreamer buffers to multifdsink. By looking at the client socket, I can see the buffers flowing. By putting a filesink just behing the fdsrc, the dump is not null. But once I put any element behind the fdsrc (like an encoder for instance), the filesink is null.

I read this blog entry [1], and I'm pretty sure that the file descriptor is not freed, I still keep a reference to it. The author use gdppay/gdpdepay around the socket sink/src element. I did that and there were no buffer from gdpdepay (filesink file is empty, but it's not if I put it right after the fdsrc).

Python scripts are attached (Python3.4 only !).

Thank you very much !
Adrien