File Export is hanging and do nothing

milanbalazs · February 11, 2022, 6:32pm

Hi All,

I have edited a video but I cannot export it. I want to use only the default setting for the exporting but it’s hanging with 0% (I am waiting for ~3-4 hours).

I have checked the log of the export but it’s empty.

The used operation system:

NAME="Linux Mint"
VERSION="19.1 (Tessa)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 19.1"
VERSION_ID="19.1"
HOME_URL="https://www.linuxmint.com/"
SUPPORT_URL="https://forums.linuxmint.com/"
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
PRIVACY_POLICY_URL="https://www.linuxmint.com/"
VERSION_CODENAME=tessa
UBUNTU_CODENAME=bionic

The content of version file of Shotcut:

vmaf df6b6696befa59fd6cb165f9d2786168815714b0 v2.3.0-94-gdf6b6696
aom 287164de79516c25c8c84fd544f67752c170082a v3.2.0
dav1d 7b433e077298d0f4faf8da6d6eb5774e29bffa54 0.9.2
zimg 71e6c2a32b27a4ee5f69856b8a05bbc7808de90c release-3.0.3-46-g71e6c2a
rubberband 445f20fa4cee02789ad737e970de02e00502c69c v2.0.1
vid.stab f9166e9b082242b622b5b456ef80cbdbd4042826 v1.1.0-48-gf9166e9
ladspa b0c0b9261819bc9bc9d9f392b49ff177285cc0f9 v0.4.17-39-gb0c0b92
nv-codec-headers 56bdfba4af9485d42303fa7a370b2aac176ab9f3 n8.1.24.13-2-g56bdfba
opus e85ed7726db5d677c9c0677298ea0cb9c65bdd23 v1.3.1
libvpx 626ff35955c2c35b806b3e0ecf551a1a8611cdbf v1.11.0
x265 02d2f496c94c0ef253766b826d95af3404b2781e 3.4-28-g02d2f496c
x264 5db6aa6cab1b146e07b60cc1736a01f21da01154
movit dccf5339b33ec0608a36c468cb42d38fd4fca9dd
frei0r febd73874dab6be330398a3b55112451b36ee939 v1.7.0-28-gfebd738
FFmpeg 3e539d11e4a78d44e8d95cef1d67d67e00258e31 n4.4.1-49-g3e539d11e4
mlt 4b19d02975a11b99d645ed1431460a7f63b88b2e v7.4.0-25-g4b19d029
shotcut 05b24fa529f1d6c0a7193f1e0411f6be38b617ee v22.01.17-22-g05b24fa5
bigsh0t 8fe56f6d4e0deb93ac0eb0bc73fdbe35bd7614cb 2.5-6-g8fe56f6

I am running the software in terminal but I cannot see any error on STDOUT in Terminal:

Based on the Terminal log, I think I have enough RAM and resources for the export.

Does anybody have idea what can/should I do to export my video?

Thank in advance!

shotcut · February 11, 2022, 6:53pm

I do not reproduce it on Ubuntu 20.04.
How are you starting Shotcut?
Right-click the export job and view log. What does it say?

milanbalazs · February 11, 2022, 7:18pm

I have double clicked the shotcut file in the Shotcut.app folder and select the Run in Terminal option. As I mentioned in my question the pop-up log window is empty so there is any log for the export (It’s visible in the below picture [Sorry for Hungarian language on UI]).

milanbalazs · February 11, 2022, 7:27pm

NOTE:

I can see the melt-7 process is running with top command:

shotcut · February 11, 2022, 7:33pm

Maybe it has a problem with your project. Make a simple test by opening a short video and exporting. Also, try turning off hardware encoder and parallel processing inside Export if those are on.

milanbalazs · February 11, 2022, 8:05pm

The default export config is used. The hardware encoder as well as parallel processing is disabled.

brian · February 12, 2022, 3:15am

Maybe there is a problem with the location that you are trying to export to. Perhaps try to export the file to a different location?

milanbalazs · February 12, 2022, 7:26am

I have tried other location to export the file but I got the same result. On the other hand, I am admin on the PC so I have permission for everything.

milanbalazs · February 12, 2022, 7:50am

I have tried to open a new project and edit only a really small video but I noticed the same error.

brian · February 12, 2022, 1:35pm

Just to be really sure, you could try to run Shotcut as root using sudo. This would just just as a debugging test, not a solution.

milanbalazs · February 12, 2022, 3:39pm

I have managed to make the export with a little hack. I have checked the used “export” command in the Terminal and I have called it with the Shotcut.app/melt script (With the Linux way mlt path [Changed the %2F to / in the path]).

The root-cause is still not clear for me (Even why I don’t get any log of the exporting [or at least an error]) but now I am happy because I don’t need to throw my work to the trash.

I will do perform some more debugging, perhaps I can discover the root-cause of the problem. I will let you know if I have any update. Or if you have any clue what I should do, just le me know…

BTW, I have to say a big thanks to you guys. Your team members and your support is very quick and helpful.

shotcut · February 13, 2022, 12:08am

Yes it is strange and not common. Thanks for trying to help determine and glad you found a workaround. If you are running a locale that uses comma for a decimal point please set the environment variable LC_ALL=C when running melt from the command line.