modifly some instruction line for readme.md

README.md

@@ -1,7 +1,34 @@
 # 4DAGE-FFMPEG
-## This repo
+
+## Maintainer: Gemer cheung <zhangyupeng@cgaii.com>
+## A Custom version FFmpeg for 4DAGE 4D Kankan, bootup by NVIDIA's GPU accelerated video codecs, LV2 python nervous plugin,special with command `4dage-ffmpeg`
+
+
+This repository is build with the FFmpeg build script provides an easy way to build custom version with a static FFmpeg on **macOS** and **Linux** with **non-free codecs** included.
+
+
+## Supported Codecs
+* `x264`: H.264 Video Codec (MPEG-4 AVC)
+* `x265`: H.265 Video Codec (HEVC)
+* `libsvtav1`, SVT-AV1 Encoder and Decoder
+* `aom`: AV1 Video Codec (Experimental and very slow!)
+* `fdk_aac`: Fraunhofer FDK AAC Codec
+* `xvidcore`: MPEG-4 video coding standard
+* `VP8/VP9/webm`: VP8 / VP9 Video Codec for the WebM video file format
+* `mp3`: MPEG-1 or MPEG-2 Audio Layer III
+* `ogg`: Free, open container format
+* `vorbis`: Lossy audio compression format
+* `theora`: Free lossy video compression format
+* `opus`: Lossy audio coding format
+* `srt`: Secure Reliable Transport
+* `srt`: Secure Reliable Transport
+* `webp`: Image format both lossless and lossy
+
+## some spec has using some flag with the repo's recommended params spec. 
+
+[https://gist.github.com/mikoim/27e4e0dc64e384adbcb91ff10a2d3678](https://gist.github.com/mikoim/27e4e0dc64e384adbcb91ff10a2d3678)
+
+# Easy installnation:
 
 
-## Base on youtube 's recommended params spec. 
 
-https://gist.github.com/mikoim/27e4e0dc64e384adbcb91ff10a2d3678