FFMPEG CONWER MKV na MP4
ffmpeg -i input.mkv -codec copy output.mp4
Old-fashioned Opossum
ffmpeg -i input.mkv -codec copy output.mp4
ffmpeg -i my-video.mov -vcodec h264 -acodec mp2 my-video.mp4
ffmpeg -i "file.mkv" -codec copy -strict -2 "file.mp4"