I have just tested and AM is noticeably faster when I am using avi or wmv format videos. It stutters and slows down while fast scrolling when using .mp4 format vids. I am on win platform (8.1) and using dxva2 video decoder. Does anyone else have the same issue?
Other tests which might be useful for comm:
- At my end best to worst (scrolling speed) video formats: wmv > avi > mp4
- Size (resolution) makes no difference whatsoever, I thought that decreasing video resolution in display was causing stutter but tested with increasing/ decreasing vid res and it made absolutely no difference.
- Vids in background also don't make any difference i.e. other items like text or list on top of video (didn't check with surfaces!)
- Video location does matter, if vids are on another HD (not partition) then AM, there is a slight slow-down which goes away within a minute.
You can check this by simple conversion of mp4 to avi via ffmpeg. If you have added ffmpeg in env/ path following commands will work as it is. If not then download ffmpeg and place them in the folder with vids. Run the commands in command-line opened at video location.
Single Video Conversionffmpeg -i "Vid-Name.mp4" -c:v copy -c:a copy "Vid-Name.avi"
Bulk Video Conversion (folder)for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v copy -c:a copy "newfiles\%%~na.avi"
(for second command create a newfiles folder first at location)