FFmpeg mpegCoder for Python

Instruction of this version

Until now, the newest release of FFMpeg is 4.4. We have bumped into this version.

From 3.0.0, the MpegServer has been implemented, which means all the basic modules are finished now. This is a pre-release branch, where we only provide limited implementations for mpegCoder:

• Windows 10, Python 3.9.4 & numpy 1.20.1.
• Windows 10, Python 3.6.13 & numpy 1.19.5.
• Windows 10, Python 3.5.2 & numpy 1.13.

The dynamic libraries could be downloaded from dll-win-ffmpeg_4_4.tar.xz. To make mpegCoder works, users need to place the dependencies in the same folder of mpegCoder, for example:

.
|---mpegCoder.pyd
|---avcodec-58.dll
|---avformat-58.dll
|---avutil-56.dll
|---swresample-3.dll
`---swscale-5.dll

Then, users could import the package by

import mpegCoder

Although there is a folder MpegCoder_LinuxVer in this folder, this folder should not be used for building the Linux mpegCoder. In the next version, we will separate the Linux implementation to another independent branch.