> >> I use the below command to place one image on one video:ffmpeg > >> -i ./file1.mp4 -i ./file2.jpg -filter_complex overlay ./file3.mp4 > >> > >> But there is no transparent effect in resulting file, i.e. > >> file3.mp4. What is the command to use alpha channel to make > >> transparent effect? > > > > Have a look at the blend filter and its opacity and expression > > options: http://ffmpeg.org/ffmpeg-filters.html#blend_002c-tblend > > IMHO OP actually wants overlay filter.
When he uses an image format with alpha support like png instead of jpeg, then yes. Just look at the second example here: http://ffmpeg.org/ffmpeg-filters.html#Examples-55 _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
