rename image_seq to seq

seq.sh

@@ -11,14 +11,13 @@ WIDTH=323
 HEIGHT=242
 
 if [[ "${INVERT}" != "" ]]; then
-	INVERT="-vf negate"
+	INVERT="negate,"
 fi
 
 mkdir -p "${OUTPUT}"
 
-ffmpeg 	-re -i "${INPUT}" \
+ffmpeg -y -re -i "${INPUT}" \
 	-f image2 \
 	-r ${RATE} \
-	"${INVERT}" \
-	-vf crop=in_h/3*4:in_h,scale=$WIDTH:$HEIGHT,setsar=1:1 \
+	-vf ${INVERT}crop=in_h/3*4:in_h,scale=$WIDTH:$HEIGHT,setsar=1:1 \
 	"${OUTPUT}/image_%06d.png"