Hi, when I try to run the sample code, I got the build error that the function `av_mallocz_array` is not defined. I just looked at the ffmpeg library, and in this file, it said this function is deprecated. https://github.com/FFmpeg/FFmpeg/blob/41dd50ad0dbbdec2225a6793758d40f0281978d9/doc/APIchanges#L315 > 2021-09-20 - 8d5de914d31 - lavu 57.6.100 - mem.h > Deprecate av_mallocz_array() as it is identical to av_calloc(). So, can you fix your sample code? BTW, I'm using the [Package: mingw-w64-x86_64-ffmpeg - MSYS2 Packages](https://packages.msys2.org/package/mingw-w64-x86_64-ffmpeg), which is version 6.0.3 under Windows + msys2(gcc compiler) Thanks.