Add auto-completion for --codec option

Add missing command to bash and zsh completion scripts.

app/data/bash-completion/scrcpy

@@ -3,6 +3,7 @@ _scrcpy() {
     local opts="
         --always-on-top
         -b --bit-rate=
+        --codec=
         --codec-options=
         --crop=
         -d --select-usb
@@ -64,6 +65,10 @@ _scrcpy() {
     _init_completion -s || return
 
     case "$prev" in
+        --codec)
+            COMPREPLY=($(compgen -W 'h264 h265 av1' -- "$cur"))
+            return
+            ;;
         --lock-video-orientation)
             COMPREPLY=($(compgen -W 'unlocked initial 0 1 2 3' -- "$cur"))
             return

app/data/zsh-completion/_scrcpy

@@ -10,6 +10,7 @@ local arguments
 arguments=(
     '--always-on-top[Make scrcpy window always on top \(above other windows\)]'
     {-b,--bit-rate=}'[Encode the video at the given bit-rate]'
+    '--codec=[Select the video codec]:codec:(h264 h265 av1)'
     '--codec-options=[Set a list of comma-separated key\:type=value options for the device encoder]'
     '--crop=[\[width\:height\:x\:y\] Crop the device screen on the server]'
     {-d,--select-usb}'[Use USB device]'