3.1.0

1. Update the installation scripts.
2. Update the readme file.

Author: cainmagi

Diff for: README.md

@@ -69,20 +69,13 @@ The following instructions are used for building the project on Windows with Vis
 
         This script requires users to install `urllib3`. The `tqdm` is also recommended to be installed.
 
-4. Building `mpegCoder` requires `GLIBC>=2.29`. This requirement is not satisfied in some cases. However, if you have built FFMpeg by our script, the requirement would be fulfilled (i.e. you could skip this step). If users are using our pre-built dependencies, users may need to solve this problem by
-
-    ```shell
-    cd FFmpeg-Encoder-Decoder-for-Python
-    ln -sf ./dependencies/lib-fix/libm-2.31.so /lib/x86_64-linux-gnu/libm.so.6
-    ```
-
-5. Build `mpegCoder` by running the following script. The built file would be stored in `./build`. If you has not fetched the dependencies in the step 2, running the `setup.py` may trigger an event for fetching the online dependencies.
+4. Build `mpegCoder` by running the following script. The built file would be stored in `./build`. If you has not fetched the dependencies in the step 2, running the `setup.py` may trigger an event for fetching the online dependencies.
 
     ```shell
     python setup.py build
     ```
 
-6. Rename the built module as `mpegCoder.so`, then you could import it in the same directory. If you have built FFMpeg by our script, you do not need any other dependencies when importing the libs. However, if not, you may need to download [the lib dependencies :package:](https://github.com/cainmagi/FFmpeg-Encoder-Decoder-for-Python/releases/download/deps-3.0.0/so-linux-ffmpeg_4_4.tar.xz) and add the `lib` folder to your `LD_LIBRARY_PATH`:
+5. Rename the built module as `mpegCoder.so`, then you could import it in the same directory. If you have built FFMpeg by our script, you do not need any other dependencies when importing the libs. However, if not, you may need to download [the lib dependencies :package:](https://github.com/cainmagi/FFmpeg-Encoder-Decoder-for-Python/releases/download/deps-3.0.0/so-linux-ffmpeg_4_4.tar.xz) and add the `lib` folder to your `LD_LIBRARY_PATH`:
 
     ```shell
     mkdir -p /apps/ffmpeg-4.4
@@ -92,7 +85,7 @@ The following instructions are used for building the project on Windows with Vis
     export LD_LIBRARY_PATH=/apps/ffmpeg-4.4/lib:$LD_LIBRARY_PATH
     ```
 
-    If you want to run the `mpegCoder` with a different environment (which means you have compiled `mpegCoder` in another environment), you still need to setup the dependencies by this step. Running FFMpeg still requries `GLIBC>=2.29`, so you may need to add the dependency by
+6. Running `mpegCoder` requires `GLIBC>=2.29`. This requirement is not satisfied in some cases. However, if you have built FFMpeg by our script, the requirement would be fulfilled (i.e. you could skip this step). If users are using our pre-built dependencies, users may need to solve this problem by
 
     ```shell
     ln -sf /apps/ffmpeg-4.4/lib-fix/libm-2.31.so /lib/x86_64-linux-gnu/libm.so.6

Diff for: apt-requirements.sh

@@ -26,4 +26,4 @@ function mcd {
 
 msg "Install gcc and g++."
 apt-get update -qq || fail
-apt-get -y install gcc g++ || fail
+apt-get -y install gcc g++ wget tar xz-utils || fail