On 4/14/20, atticus via ffmpeg-user <[email protected]> wrote: > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Monday, April 13, 2020 9:02 PM, Mark Filipak > <[email protected]> wrote: > >> offlist >> >> Tips: >> Ask questions. Don't make statements. >> Make the questions short. If the issue is complex, ask many questions. >> >> On 04/13/2020 11:49 AM, atticus via ffmpeg-user wrote: >> >> > Since I'd like to add the feature to my script to be able to add >> > transitions >> > between the elements and since when using the concat demuxer for making >> > the >> > slideshow the different images >> > indistinguishable for the filter chain, I have to think of another way >> > to >> > make a slideshow while still having the images distinguishable for the >> > filter chain >> > (I don't like it to preprocess the Images by making a Video of each >> > Image >> > because of various reasons). >> > A fact that makes this even harder, is that I'd like to be still able to >> > set >> > different durations for different images (like it is possible in the >> > input >> > file for the concat demuxer (see https://trac.ffmpeg.org/wiki/Slideshow >> > https://trac.ffmpeg.org/wiki/Slideshow ). >> > Since I didn't found a solution that meets that kind of requirements, >> > I'm >> > asking you if someone of you might have an Idea how to do this. > > > > Hm problem with this is that it's difficult to split the complex question > into multiple less complex questions. > > But I thought about this yesterday and came up with something like this: > > ffmpeg -i in.JPG -filter_complex "[0:0]loop=loop=-1:start=0:size=100 > [looped] ; [looped] trim=start=0:end=10 [trimmed] ; [trimmed] > fade=type=in:start_frame=0:duration=3:color=black [fadeIn]" -map [fadeIn] > -c:v h264 -r 60 out.mkv > > or this > > ffmpeg -loop 1 -i in.JPG -filter_complex "[0:0] trim=start=0:end=200 > [trimmed] ; [trimmed] fade=type=in:start_frame=0:duration=3:color=black > [fadeIn]" -map [fadeIn] -c:v h264 out2.mkv > > (I'd just have to add a concat filter to the filter chain and an audio > stream). I'm just not quite sure if there is a more smart way to do this > (which for example would be a bit faster, since this is (in my opinion a bit > slow for just duplicating a single frame). Well is there a smarter and/or > faster way? > And can you recommend which of these two commands above might be the better > one?
Please use xfade filter instead. > > With kind regards > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
