vcsi generating "empty" (zero size) temporary images and then fails

[GuguKatze]

The same command works fine on other machines but I am testing things on an Ubuntu 20.04LTS Windows 10 Linux Syubsystem "VM". The temporary images vcsi complains about got a size of 0 bytes.
(vcsi version 7.0.12)

root@DESKTOP-45D2TDM:/tmp# /usr/local/bin/vcsi /tmp/ellamilano_2020-05-11_17-06-03.mp4 -t -w 1920 -g 4x4 --background-color 000000 --start-delay-percent 1 --end-delay-percent 1 --metadata-position top --grid-horizontal-spacing 1 --grid-vertical-spacing 1 --timestamp-font "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf" --timestamp-font-size 24 --metadata-font "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf" --metadata-font-size 24 --timestamp-format '{H}:{M}' --timestamp-vertical-padding 5 -vvv -v -v -v --format jpg -o /tmp/ellamilano_2020-05-11_17-06-03.jpg Considering /tmp/ellamilano_2020-05-11_17-06-03.mp4... Processing /tmp/ellamilano_2020-05-11_17-06-03.mp4... ellamilano_2020-05-11_17-06-03.mp4 1280x720 1280x720 13:37 300.4 MiB Traceback (most recent call last): File "/usr/local/bin/vcsi", line 11, in <module> sys.exit(main()) File "/usr/local/lib/python3.6/dist-packages/vcsi/__init__.py", line 3, in main vcsi.vcsi.main() File "/usr/local/lib/python3.6/dist-packages/vcsi/vcsi.py", line 1518, in main process_file(filename, args) File "/usr/local/lib/python3.6/dist-packages/vcsi/vcsi.py", line 1646, in process_file selected_frames, temp_frames = select_sharpest_images(media_info, media_capture, args) File "/usr/local/lib/python3.6/dist-packages/vcsi/vcsi.py", line 658, in select_sharpest_images frame = do_capture(timestamp_tuple, desired_size[0], desired_size[1], suffix, args) File "/usr/local/lib/python3.6/dist-packages/vcsi/vcsi.py", line 618, in do_capture blurriness = media_capture.compute_blurriness(filename) File "/usr/local/lib/python3.6/dist-packages/vcsi/vcsi.py", line 514, in compute_blurriness i = Image.open(image_path) File "/usr/local/lib/python3.6/dist-packages/PIL/Image.py", line 2896, in open "cannot identify image file %r" % (filename if filename else fp) PIL.UnidentifiedImageError: cannot identify image file '/tmp/tmp7rwh5hj3.png'

[xanadu6291]

I had the same issue. In my case, by setting --end-delay-percent option to 20 fixed the issue...