https://bugs.kde.org/show_bug.cgi?id=447446
Bug ID: 447446
Summary: Fade transition with ken burns panning generates
jumping images
Product: digikam
Version: 7.3.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Plugin-Generic-VideoSlideshow
Assignee: digikam-bugs-n...@kde.org
Reporter: cwei...@cweiske.de
Target Milestone: ---
SUMMARY
When creating a slideshow video file with Tools>"Create video slideshow" and
using the "ken burns - camera pan left to right" display effect together with
the "Fade" image transition leads to "jumping" images after the fade effect.
The face effect fades into the centered image, but the ken burns effect starts
with the image moved to the right. When the fade effect ends, the image jumps
from center to the right.
STEPS TO REPRODUCE
1. Select two images
2. Tools > Create video slideshow"
3. Image selection: Images, next
4. Next
5. Video settings:
5.1. Effect displaying images: Ken Burns - camera pan left to right
5.2. Transition between images: Fade
6. Generate and view video
OBSERVED RESULT
When the fade-in effect is over, the image jumps from the center to the right,
because the ken burns effect starts with the image on the right side.
Example video: http://tmp.cweiske.de/digikam-bug-slideshow-transition.mp4
EXPECTED RESULT
Images do not jump around but move and transition smoothly.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu 20.04 with Mate desktop 1.24.0-2
KDE Frameworks 5.68.0
Qt 5.12.8 (built against 5.12.8)
The xcb windowing system
ADDITIONAL INFORMATION
ffmpeg info:
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened
--libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu
--arch=amd64 --enable-gpl --disable-stripping --enable-avresample
--disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa
--enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
--enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite
--enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme
--enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa
--enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse
--enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2
--enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx
--enable-openal --enable-opencl --enable-opengl --enable-sdl2
--enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
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