Multiple instances/one encode per cpu setting please!!

[Wetnap]

It seems some settings will cause handbrake to under perform on multiple cpus, from what i've googled its the filters and such. But when i try to run multiple instances it crashes.

It would be awesome if there were an advanced feature to set cpu per job or simply let the user spawn a second instance. It would seem to be a better solution esp since one can already control how many cpus it uses. I've tried installing handbrake in a second directory but it also fails once i hit encode on the second gui, somethings shared that shouldn't be. this is in windows.

and before someone asks why...

think tv shows, or even regular movies, you want the job done as fast as possible:)

[mduell]

Use the CLI.

Or multiple user accounts (one queue per).

[Wetnap]

hm on windows encodes continue to run in the background account?

the whole point of the gui is not to have to use the cli;)

[Wetnap]

ok i think i found a way, gotta generate batch scripts from the queue.
running two with deinterlace filter now simultaneously right now, frame rate of second encode is identical to the first, total core load is now at 80% which is better than the total minimal load from before. no log files and such, not sure if shutdown/standby after encode works doing this way.

still would be nice if there was an easier way in the gui.

[firewing1]

I would agree, removing the restriction in the GUI would be great. I have no problems using the CLI but I think the message should be a warning (such as "There is another HB instance running already. Continue?") and not an error that prevents you from starting another encode.

[JohnAStebbins]

If it were a warning, then it wouldn't prevent you from screwing up your encodes like you so seem so intent on doing. There are files that handbrake uses when it is running that can not be shared with another instance. If 2 instances were allowed to access these, data corruption would occur and likely lead to a crash or worse silently screw up your encode session.

[Wetnap]

Even if the second instance running from a bat file is from a second copied handbrake directory?

[JohnAStebbins]

I can't speak for the windows platform, but it's very likely the same as osx and linux in this regard. The queue file is kept in a user config directory that is common for all instances of handbrake that are run by a particular user. You can run multiple instances of handbrake by running each from a different user account. But if you use the same user account, you will corrupt the queue.

[Wetnap]

but the bat doesn't rely on a queue right? its just running command lines from the bat file?