My guess is that it could be Digital Rights Management related? If you can screenshot a DRM protected video then, in principle, you could screenshot every frame and encode the frames back into a DRM-free version of the video. Do you know what the videos that had the problem were?
On 7/11/2017 3:20 AM, Tiemo Hollmann TB via use-livecode wrote: > Hello, > > LC 8.1.4, Windows 10 > > I am using the standard LC videoPayer (directShow) to play H.264 mp4 videos. > One essential feature of my program is, that the user can take screenshots > from the video, edit and save them. > > Today I got the second customer call with a Win 10 machine, who can't take > screenshots from my LC videos. The video screen is just black on the taken > screenshot. This issue does not only happen with the build in LiveCode > screenshot feature, but also, if they take a screenshot with the windows > print key or other screenshot tools. > > Up to now, this issue happens only at 2 customers, on all other Win 10 > machines, taking a video screenshot works fine. The alwaysBuffer of the > videoPlayer is set to false (setting it to true, I don't see any video > playing) I also checked to disable the Kaspersky AV on the client computer > (Kaspersky has a feature to prevent screenshots), but without success. Btw. > the old version of my program with the quicktime player works fine on these > machines. > > I googled a lot, but didn't found any related issues in the net, so I > assume, it must be related to the LiveCode implementation of the directShow > videoPlayer. But in combination with any special hardware or software > setting on these two computers. > > Has anybody already experienced similar issues or has any shot in the dark, > what system options, drivers, other tools in combination with LiveCode could > have an influence on taking a screenshot? > > Any idea, what I could check for is welcome > > Tiemo > > > > > > _______________________________________________ > use-livecode mailing list > firstname.lastname@example.org > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list email@example.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode