diff options
Diffstat (limited to 'src/misc/ffmpeg/index.md')
-rw-r--r-- | src/misc/ffmpeg/index.md | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/misc/ffmpeg/index.md b/src/misc/ffmpeg/index.md new file mode 100644 index 0000000..a1b8fd3 --- /dev/null +++ b/src/misc/ffmpeg/index.md @@ -0,0 +1,41 @@ +--- +title: FFmpeg Cheat Sheet +date: February 3, 2025 +description: Random ffmpeg incantations I find useful +--- + +Apply a gaussian blur: + +```bash +ffmpeg -i in.mp4 -vf 'gblur=sigma=20:steps=5' -c:a copy out.mp4 +``` + +Create a video from an audio file and still image: + +```bash +ffmpeg -loop 1 -i image.jpg -i audio.m4a -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -shortest out.mp4 +``` + +Crop 200px from the bottom of a video, maintaining aspect ratio: + +```bash +ffmpeg -i in.mp4 -filter:v 'crop=iw-200:ih-200:(iw-ow)/2:0' -c:a copy out.mp4 +``` + +Convert a landscape video to portrait (crop to center): + +```bash +ffmpeg -i in.mp4 -filter:v 'crop=ih*9/16:ih:(iw-ow/2):0' -c:a copy out.mp4 +``` + +Trim video using start and end timestamps: + +```bash +ffmpeg -i in.mp4 -ss 00:01:00 -to 00:02:00 -c copy out.mp4 +``` + +Scale a video down to 720p (keep aspect ratio): + +```bash +ffmpeg -i in.mp4 -vf "scale=-2:720" out.mp4 +``` |