https://bugs.kde.org/show_bug.cgi?id=361829
--- Comment #15 from Andrius <aegor...@gmail.com> ---
Confirmed on 5.8.0 pre-release bundle on openSUSE TW KDE.
QtAV still ignores the rotation flag.
Here an extract from ffmpeg output for a sample file:
"
Metadata:
rotate : 90
creation_time : 2017-11-26T00:45:53.000000Z
handler_name : VideoHandle
Side data:
displaymatrix: rotation of -90.00 degrees"
I think usually videoplayers use that displaymatrix value to display a video
correctly. Basically it tells you to rotate the image 90 degrees back (-90)
I tried to find some info on how to call ffmpeg within c++ on found these:
(not sure if they are helpful though)
https://stackoverflow.com/questions/35751441/ffmpeg-c-apis-to-detect-if-a-video-is-rotated-shot-on-phone
https://ffmpeg.org/doxygen/trunk/index.html
https://www.codeproject.com/Tips/111468/FFmpeg-Tutorial
https://trac.ffmpeg.org/wiki/Including%20FFmpeg%20headers%20in%20a%20C%2B%2B%20application
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