diff --git a/README.md b/README.md
index 649dfba7c4..82195ea55f 100755
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ cd srs/trunk
 ./configure && make
 ```
 
-> Remark: Recommend Centos6 64bits, for other OS please read wiki([CN][v3_CN_Build],[EN][v3_EN_Build]).
+> Remark: Recommend Centos6 64bits, for other OS recommend [docker][docker], please read wiki([CN][v3_CN_Build],[EN][v3_EN_Build]).
 
 > Note: If you have multiple cores such as 4 cores CPU, please use `./configure --jobs=4 && make --jobs=4` to speeed up the build.
 
@@ -1079,6 +1079,7 @@ Winlin
 [console]: http://ossrs.net:1985/console
 [player]: http://ossrs.net/players/srs_player.html
 [modules]: https://github.com/ossrs/srs/blob/develop/trunk/modules/readme.txt
+[docker]: https://github.com/ossrs/srs-docker/tree/centos#usage
 
 [v1_CN_Git]: https://github.com/ossrs/srs/wiki/v1_CN_Git
 [v1_EN_Git]: https://github.com/ossrs/srs/wiki/v1_EN_Git
diff --git a/trunk/auto/depends.sh b/trunk/auto/depends.sh
index de6a2be888..f6c90f28d9 100755
--- a/trunk/auto/depends.sh
+++ b/trunk/auto/depends.sh
@@ -674,6 +674,9 @@ fi
 # live transcoding, ffmpeg-4.1, x264-core157, lame-3.99.5, libaacplus-2.0.2.
 #####################################################################################
 if [ $SRS_FFMPEG_TOOL = YES ]; then
+    if [[ -f /usr/local/bin/ffmpeg && ! -f ${SRS_OBJS}/ffmpeg/bin/ffmpeg ]]; then
+        mkdir -p ${SRS_OBJS}/ffmpeg/bin && ln -sf /usr/local/bin/ffmpeg ${SRS_OBJS}/ffmpeg/bin/ffmpeg
+    fi
     if [[ -f ${SRS_OBJS}/ffmpeg/bin/ffmpeg ]]; then
         echo "ffmpeg-4.1 is ok.";
     else