diff --git a/modules/video_previews.sh b/modules/video_previews.sh
index a250361..0ba0148 100755
--- a/modules/video_previews.sh
+++ b/modules/video_previews.sh
@@ -37,9 +37,9 @@ create_previews() {
 
 get_size() {
 	IFS=','
-	read -r width height <<< $(ffprobe -v error -select_streams v -show_entries stream=width,height -of csv=p=0 "${video}")
+	read -r width height <<< $(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 "${video}")
 
-	if [[ $width -gt $height ]]; then
+	if (( $width >= $height )); then
 		rows=4 cols=5
 		scale_format="200:-1"
 	else
@@ -61,9 +61,10 @@ make_preview() {
 	get_size
 	get_num_frames
 
-	filename="$(basename "${video}")"
+	filename="$preview_dir/$(basename "${video}").webp"
+	filters="select=not(mod(n\,$frames_per_snapshot)),scale=$scale_format,tile=${rows}x${cols}"
 
-    ffmpeg -nostdin -loglevel panic -i "${video}" -frames 1 -q:v 90 -vf "select=not(mod(n\,$frames_per_snapshot)),scale=$scale_format,tile=${rows}x${cols}" "$preview_dir/${filename}.webp"
+    ffmpeg -nostdin -loglevel panic -i "${video}" -frames 1 -q:v 90 -vf "$filters" "${filename}"
 }
 
 check_dependencies