> On 20 Apr 2020, at 15:38, Edward Park <kumowoon1...@gmail.com> wrote: > > If this is accurate, it looks like you have asked it to produce 20 frames in > 60 seconds, or 1/3 fps, or 1 frame every 3 seconds regardless of input > framerate, whatever. It will drop frames, duplicate frames, do what is needed > to keep 1/3 frames per second constant output. You've also specified that you > want 10 frames total. at 1/3 fps that runs 30 seconds. I'm not sure why the > first and second are always duplicates, it doesn't look like any frames were > duplicated. (at 0.33fps if two frames were exactly the same when they weren't > duplicated, maybe it was frozen in the source?) > > Regards, > Ted >
Thanks Ted, Thats exactly what I was hoping I had asked it for. Create 20 image files per 60 seconds of source media up to a maximum total of 10 images. So if the source was 15 seconds in duration I would get 5 images, anything 30 seconds if longer in duration I would get 10 images output spaced equally apart in time at a frequency of 1/3 fps from the start of the source. These values are all variables at runtime so I might ask to create at a lower frequency with more or less total images. Every single time I get a duplicate first image :( _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".