Video playback: excessive memory usage

[sebleblanc]

I was testing video playback (using the GStreamer audio-video output) and left it running overnight. When I came back to my computer, I noticed that Liquidsoap was not running anymore. Looking at logs, the OOM killer was invoked after about 5 hours of playback. I have 16GB of memory on this system, so that is quite a lot of memory to use, for a simple looped video script.

Running that script for 15 minutes shows that it already uses 3.6G of resident memory, 11.4G of virtual memory.

Here is my (very simple) script:

background = fallback([single("./samples/videos/fireplace.mp4"), blank()])
queue = request.queue(id="request")

program = fallback(track_sensitive=false,
                   [queue, background])

output.gstreamer.audio_video(program)

[S54B32]

Test your script without using a fallback to blank. I have seen generating blank cause issues in the past (with audio scripts).

It might not have any effect but worth trying.

Also it would be helpful to know which version of Liquidsoap you're running.

[toots]

Is there any chance that you could try with a recent liquidsoap version compiled with gstreamer builtin (not as a plugin)? The opam install instructions should provide a quick way to get there: http://liquidsoap.fm/download.html

I'm asking b/c the bug might be fixed in the recent code and also the plugin build is now deprecated in favor of opam.

[toots]

This should be fixed now!