v14.12 encodes black video without sound about shotcut HOT 15 CLOSED

The AUR package basically just uses the Shotcut binary download and system installs the launch icon. Another reputable Arch user reproduces the problem.

from shotcut.

please test this on the command line:

cd /opt/shotcut/
source source-me

Now your environment/path is setup to use the same "bundle" environment that shotcut uses. Make test transcodes.

ffmpeg -i some-file -strict -2 test-ffmpeg.mp4
melt some-file -consumer avformat:test-melt.mp4 properties=x264-medium

Now, try to play each of them:

ffplay test-ffmpeg.mp4
ffplay test-melt.mp4

Oh, and cleanup:

rm test-ffmpeg.mp4 test-melt.mp4

Thanks

from shotcut.

Both the files play and show video and sound. I just had to copy /opt/shotcut to another location to run everything as a normal user, but followed the instructions.

from shotcut.

Hi, I finally reproduced the problem on my main non-Arch system. I am working on a fix.

from shotcut.

Oh! Good news! Is it possible you can inform us what the issue was and what caused it? Just curious. Thanks for your work and help!

from shotcut.

It was a coding error in a change to use relative paths in the XML project file as much as possible (to make projects more portable). When generating the XML for encoding, it was creating invalid paths to the clips resulting in only the background (black silence) showing.

from shotcut.

Tomorrow, I am going to check tonight's build with the fix and then update the downloads if OK.

from shotcut.

👍

from shotcut.

https://github.com/mltframework/shotcut/releases/download/v14.12/shotcut-debian7-x86_64-141212.tar.bz2

Or change pkgver to 141212 in your PKGBUILD and rebuild your AUR pkg.

from shotcut.

Works! Thank you!

from shotcut.

I think I found another issue related to this one. If I cut away the start of a clip, that entire clip becomes black video without sound after encoding. But this does not affect the clips after this clip.

I cut by using the split tool, then deleting the part I splitted out then I move the clip to the start on the timeline.

from shotcut.

Yes, I found it and fixed it. During my code search and subsequent refactoring, the bug was limited to that one operation (split) that called the function a little different than every other call. I am not going to upload a new build for that one bug fix (limited to using split on Linux). It will have to wait for the 15.01 release. However, tomorrow I will post a link to download the new nightly build in this bug report.

from shotcut.

Thanks 👍

from shotcut.

http://builds.us.meltytech.s3.amazonaws.com/shotcut/shotcut-debian7-x86_64-141214.tar.bz2

from shotcut.

Yet again, 👍

from shotcut.