Merge remote-tracking branch 'origin/dev-sdk-main' into dev-sdk-main

# Conflicts:
#	README_CN.md

Author: dji-byte

README.md

@@ -53,7 +53,7 @@ Supported Product:
 
 ### Software License
 
-The DJI Android SDK is dynamically linked with unmodified libraries of <a href=http://ffmpeg.org>FFmpeg</a> licensed under the <a href=https://www.gnu.org/licenses/lgpl-3.0.html.en>LGPLv3.0</a>. The source code of these FFmpeg libraries, the compilation instructions, and the LGPL v3.0 license are provided in [Github](https://github.com/dji-sdk/FFmpeg). The DJI Sample Code V5 in this repo is offered under MIT License.
+The DJI Android SDK is dynamically linked with unmodified libraries of <a href=http://ffmpeg.org>FFmpeg</a> licensed under the <a href=https://www.gnu.org/licenses/lgpl-2.1.html.en>LGPLv2.1</a>. The source code of these FFmpeg libraries, the compilation instructions, and the LGPL v2.1 license are provided in [Github](https://github.com/dji-sdk/FFmpeg). The DJI Sample Code V5 in this repo is offered under MIT License.
 
 
 ### Sample Explanation