I was trying to export in mkv trying to put ffmpeg command for water mark, water mark not displaying but the same way avi format water mark is displaying, my command follows as
$" -i {“sourcevideopath”} -i {path} - filter_complex \text\-c-v h264_nvenc -maxrate 4M -bufsize 8M -c: a copy {temppath}
as the error i have found codec could not found , since there is no parameter for passing codec in mkv format and the same avi format i am passing the codec parameter. I have tried many things to change in the command but watermark wasnt displayed. Please do let me know to tackle this … thanks.