diff --git a/gen.single.sh b/gen.single.sh
new file mode 100644
index 0000000..809a50e
--- /dev/null
+++ b/gen.single.sh
@@ -0,0 +1,34 @@
+rm -rf hls
+
+mkdir -p hls/video
+ffmpeg -i assets/final.mp4 \
+    -map 0:v:0 -map 0:a:0 \
+    -c:v libx264 -c:a aac \
+    -vf "fps=25" \
+    -f hls \
+    -hls_time 10 \
+    -hls_segment_type mpegts \
+    -hls_flags single_file \
+    -hls_list_size 0 \
+    hls/video/index.m3u8
+
+mkdir -p hls/audio
+ffmpeg -i assets/final.mp4 \
+    -map 0:a:1 \
+    -c:a aac -vn \
+    -f hls \
+    -hls_time 10 \
+    -hls_segment_type mpegts \
+    -hls_flags single_file \
+    -hls_list_size 0 \
+    hls/audio/index.m3u8
+
+cat >hls/variant.m3u8 <<EOF
+#EXTM3U
+
+#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",LANGUAGE="zh",NAME="主音轨",AUTOSELECT=YES,DEFAULT=YES,URI="video/index.m3u8"
+#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",LANGUAGE="zh",NAME="第二音轨",AUTOSELECT=NO,DEFAULT=NO,URI="audio/index.m3u8"
+
+#EXT-X-STREAM-INF:BANDWIDTH=800000,CODECS="avc1.64001f,mp4a.40.2",AUDIO="audio"
+video/index.m3u8
+EOF