VSO Software Forum

Hello

When I want to convert several video files at the same time (multiple file hardware encoding, CUDA), ConvertXtoVideo is CRASHING after a few minutes.
It doesn't matter whether I put 8 or 4 video files to convert at the same time. ConvertXtoVideo is crashing.

Is there some help?

Regards

mue.mat

If you have hardware encoding enabled, check how that is.
I had 2 NVENC and 2 CUDA instances and that crashed (one thread froze).

Changing it to use only CUDA fixed it.

Hello,

The maximum of hardware encoder sessions usable depend of multiple parameters:
- graphic card capacities (available memory,nb. of CUDA cores)
- output profile (resolution, nb of ref. frames...)
- if hardware decoders option is enabled, that will decrease the maximum encoder sessions usable in same time too

A single rule can be applied for major graphic cards:
4 simultaneous hardware session (including decoders AND encoders).
That mean:
2 hardware decoder instances AND 2 hardware encoder instances (where max. simultaneous conversions should be set to 2)
OR
0 hardware decoder instances AND 4 hardware encoder instances (where max. simultaneous conversions should be set to 4)
These values depends on output profile, but can be applied for 1080p output in major cases.

I need to create a module (in my task list) able to check the computer/graphic card capabilities to find the best conversion settings to use.

@JJ

I had 2 NVENC and 2 CUDA instances and that crashed (one thread froze).
Changing it to use only CUDA fixed it.

I will check why NVENC fail when CUDA is able to convert without problem...

Regards,

Hello

I tried out nearly "everything". Multiple encoding to BluRay structure (720p or 1080p) with...

a) software encoding: fails (error message, doesn't even start converting)
b) hardware encoding, NVENC and 2 CUDA: crashing after few minutes
c) hardware encoding, only NVENC: fails (error message, doesn't even start converting, only few video files start converting until crashing a few minutes later)
d) hardware encoding, only CUDA: crashing after few minutes

In older versions it was possible for me to convert up to 10 (!) video files (with same length, 45m, and resolution, 720p, as examples above; CUDA hardware encoding). My system did the job within 60 min and a overall length of video of more than 7 hours. Now software is crashing even with 4 video files. That means, ConvertXtoVideo has now a problem to convert multiple video files at the same time.

Regards

mue.mat

Please post your log files.

Regards,

Hello
v1.6.0.4:
Software still crashing when using more than 3 files for multiple encoding at the same time (mkv to BluRay-structure).
Should be nice to be fixed in next beta version.

Regards

mue.mat

Sorry to ask but with latest version do you still have this problem 1.6.0.9?

Yes, usually crashing happens at the end of conversion, during the last 5-10 min.

Crashes at the end of the covnersion can be related to the creation of the menu.

You can try a conversion with a menu template "no menu" for example and see what happens.

Crashing is BEFORE creating menu, still during normal conversion.
The more video files converting at the same time (720p, > 40 min), the earlier crash happens. The «limit» is 4 video files and more.
Software encoding (CPU) doesn't create problems, but, of course, is much slower.