feat: Added more filters, including crop.

examples.nu

@@ -0,0 +1,41 @@
+#!/usr/bin/env nu
+
+use ffmpeg.nu;
+use filters.nu *;
+use filters.nu; # overlay filter can't be used with a * immport
+
+def main [] {
+  # ffmpeg -i INPUT -filter_complex "split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2" OUTPUT
+  (
+    ffmpeg cmd ['INPUT'] ['OUTPUT']
+    | split ['main' 'tmp']
+    | ffmpeg filterchain { crop --height 'ih/2' -i ['tmp'] | vflip ['flip'] }
+    | filters overlay -i ['main' 'flip'] -x 0 -y 'H/2'
+    | ffmpeg run --dry-run
+  )
+
+  # ffprobe 'https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4'
+
+  # ffprobe 'https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4' | streams video
+
+  # Re-encode the video to 30fps
+  #(
+    # command ['https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4']
+    # | fps 30
+    # | command to-args
+    # | ['ffmpeg', ...$in] 
+  #)
+
+  # Re-encode the video to 30fps, specifying inputs and outputs
+  # (
+    # ffmpeg cmd ['https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4']
+    # | filterchain ['0'] { fps 30 } ['video']
+    # | command to-args
+    # | ['ffmpeg', ...$in] 
+  # )
+
+
+  #(ffmpeg cmd ['INPUT'] ['OUTPUT'] | fps 25 | loop 2 1 | get filters | to nuon);
+  #ffmpeg cmd ['INPUT'] ['OUTPUT'] | ffmpeg filterchain ['in'] ['out'] { fps 25 | loop 2 1 } | ffmpeg cmd to-args
+  #ffmpeg cmd ['INPUT'] ['OUTPUT'] | ffmpeg filterchain { fps 25 -i ['in'] | loop 2 1 -o ['out'] } | ffmpeg cmd to-args
+}