diff --git a/sh/ffmpeg.sh b/sh/ffmpeg.sh
index c8471f6..0fb29e1 100644
--- a/sh/ffmpeg.sh
+++ b/sh/ffmpeg.sh
@@ -8,3 +8,16 @@ rwx_ffmpeg_devices_reset() {
 	modprobe --remove "${module}" &&
 		modprobe "${module}"
 }
+
+# ╭────────┬────────┬─────────╮
+# │ ffmpeg │ device │ formats │
+# ╰────────┴────────┴─────────╯
+
+rwx_ffmpeg_device_formats() {
+	local device="${1}"
+	[ -n "${device}" ] || device="/dev/video0"
+	ffmpeg \
+		-f "v4l2" \
+		-list_formats "all" \
+		-i "${device}"
+}