{"id":54357,"date":"2021-12-22T03:01:44","date_gmt":"2021-12-21T17:01:44","guid":{"rendered":"http:\/\/www.rjmprogramming.com.au\/ITblog\/?p=54357"},"modified":"2021-12-23T13:46:26","modified_gmt":"2021-12-23T03:46:26","slug":"more-ffmpeg-edited-videos-tutorial","status":"publish","type":"post","link":"https:\/\/www.rjmprogramming.com.au\/ITblog\/more-ffmpeg-edited-videos-tutorial\/","title":{"rendered":"More ffmpeg Edited Videos Tutorial"},"content":{"rendered":"
\"More<\/a>

More ffmpeg Edited Videos Tutorial<\/p><\/div>\n

Now that yesterday’s Making of Sepia Video via ffmpeg Tutorial<\/a> has outlined some media sharing strategies, let’s look at more of what ffmpeg<\/a> can do for you in the video editing woooooorrrrrllllllddd.<\/p>\n

As far as media creation goes, are you like me and think in terms of videos being much harder to edit than images, and maybe even audio media files? But have you considered global video editing via great command line products like ffmpeg<\/a>?<\/p>\n

We normally end up at the excellent StackOverflow<\/a> to find methodologies to use, but today …<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Input House.m4v video …<\/th>\n<\/tr>\n
macOS Terminal command line ffmpeg command to “emboss” … thanks to geq, vignette — ffmpeg examples<\/a><\/th>\n<\/tr>\n
$ ffmpeg -y -i House.m4v -vf ”
\ngeq=
\nlum='(lum(X,Y)+(256-lum(X-4,Y-4)))\/2′:
\ncr='(cr(X,Y)+(256-cr(X-6,Y-6)))\/2′:
\ncb='(cb(X,Y)+(256-cb(X-8,Y-8)))\/2′
\n” -an HouseEmboss.mp4<\/td>\n<\/tr>\n
Output HouseEmboss.mp4 “emboss” video …<\/th>\n<\/tr>\n
macOS Terminal command line ffmpeg command to “vignette” … thanks to geq, vignette — ffmpeg examples<\/a><\/th>\n<\/tr>\n
$ ffmpeg -y -i House.m4v -vf “vignette” -an HouseVignette.mp4<\/td>\n<\/tr>\n
Output HouseVignette.mp4 “vignette” video …<\/th>\n<\/tr>\n
macOS Terminal command line ffmpeg command with “luminance in the centre” … thanks to geq, vignette — ffmpeg examples<\/a><\/th>\n<\/tr>\n
$ ffmpeg -y -i House.m4v -vf “\\ngeq=\\nlum=’max(lum(X,Y) – ((X-W\/2)^2+(Y-H\/2)^2)\/5000., 0)’:\\ncr=’cr(X,Y)’:\\ncb=’cb(X,Y)’\\n” -an HouseLuminance.mp4<\/td>\n<\/tr>\n
Output HouseLuminance.mp4 “luminance in the centre” video …<\/th>\n<\/tr>\n
macOS Terminal command line ffmpeg command with “rotation” … thanks to video – FFmpeg filter to rotate image through arbitrary angle – Super User<\/a><\/th>\n<\/tr>\n
$ ffmpeg -y -i House.m4v -vf “rotate=angle=-20*PI\/180:fillcolor=yellow” HouseRotate.mp4<\/td>\n<\/tr>\n
Output HouseRotate.mp4 “rotate” video …<\/th>\n<\/tr>\n