I have a system that consumes video from an RTSP source, using the rtspsrc element. The source may occasionally fail, so whenever I detect a failure, I'm trying to re-create the pipeline in a loop until the pipeline becomes live again. The problem is that apparently rtspsrc does not clean up completely. When running lsof on the program, I see more and more stream resources being consumed, until the point in which the operating system stops the whole program.
Here's a small snippet that recreates the problem:
#!/usr/bin/python3
import gi
gi.require_version('Gst', '1.0')
from gi.repository import Gst, GLib
import time
gpipe = None
def proc_message(bus, message):
global gpipe
if (message.type == Gst.MessageType.ERROR):
gpipe.set_state(Gst.State.NULL)
time.sleep(1)
gpipe = create_pipe()
def create_pipe():
pipe = Gst.parse_launch('rtspsrc location=rtsp://localhost:1000 ! fakesink')
pipe.get_bus().add_signal_watch()
pipe.get_bus().connect("message", proc_message)
pipe.set_state(Gst.State.PLAYING)
return pipe
Gst.init(None)
gpipe = create_pipe();
GLib.MainLoop().run()
The environment is Gstremer from git head (also tried released 1.16, same problem) on Ubuntu 18.04.
Avishay
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