Hi all I have got a video file which I need to modify by placing small dark spots on specific locations on the video for a specific time interval.
I have a list of the location numbers ( horizontal pos, vertical pos ) and the video file as my input. I came across the transcode logo filter which allows us to impose images on a video. So I thought of doing the following : 1. Creating an image file with a very small black dot. 2. Use the logo filter to superimpose the image on the video and transcode the video so that the output looks like we have drawn a dot on the source video. My problem now is I am not able to understand how to simultaneously specify multiple image files ( or multiple location inputs and multiple frame locations) as input for the video at once. I want to know if there is any specific command line switch for this. I know we can do: transcode ... -J logo=file=mylogo.gif:pos=200x100 transcode ... -J logo=file=mylogo.png:range=0-100:posdef=5 But is there a way to specify multiple 'pos' values and 'range' at the same time for a single image file so that the same image is superimposed at multiple locations on a frame and also on multiple frames? I am not very sure whether my approach would work finally. I shall appreciate any other alternative solutions for the probem I am facing. Thanks, Ashwin.
