Compiling on aarch64 raspberry pi

[chriskosinski]

1. Preparation for install:
   pi@raspi:~/ $ git clone https://github.com/klaxa/mkvserver_mk2
cd mkvserver_mk2
pi@raspi:~/mkvserver_mk2 $ sudo apt install libavformat-dev libavcodec-dev libavutil-dev
2. make and errors:

pi@raspi:~/mkvserver_mk2 $ make
cc -g -Wall `pkg-config --cflags libavformat libavcodec libavutil` -pthread -c segment.c
segment.c: In function ‘segment_init’:
segment.c:108:5: error: unknown type name ‘AVCodecContext’; did you mean ‘AVIODirContext’?
  108 |     AVCodecContext *codec_ctx;
      |     ^~~~~~~~~~~~~~
      |     AVIODirContext
segment.c:111:15: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  111 |     seg->ifmt = fmt->iformat;
      |               ^
segment.c:129:34: error: assignment of member ‘flags’ in read-only object
  129 |     seg->fmt_ctx->oformat->flags &= AVFMT_NOFILE;
      |                                  ^~
segment.c:137:25: error: implicit declaration of function ‘avcodec_alloc_context3’; did you mean ‘avio_alloc_context’? [-Wimplicit-function-declaration]
  137 |             codec_ctx = avcodec_alloc_context3(NULL);
      |                         ^~~~~~~~~~~~~~~~~~~~~~
      |                         avio_alloc_context
segment.c:137:23: error: assignment to ‘int *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  137 |             codec_ctx = avcodec_alloc_context3(NULL);
      |                       ^
segment.c:138:13: error: implicit declaration of function ‘avcodec_parameters_to_context’; did you mean ‘avcodec_parameters_copy’? [-Wimplicit-function-declaration]
  138 |             avcodec_parameters_to_context(codec_ctx, in_stream->codecpar);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |             avcodec_parameters_copy
segment.c:139:69: error: request for member ‘codec’ in something not a structure or union
  139 |             out_stream = avformat_new_stream(seg->fmt_ctx, codec_ctx->codec);
      |                                                                     ^~
segment.c:141:13: error: implicit declaration of function ‘avcodec_free_context’; did you mean ‘avformat_free_context’? [-Wimplicit-function-declaration]
  141 |             avcodec_free_context(&codec_ctx);
      |             ^~~~~~~~~~~~~~~~~~~~
      |             avformat_free_context
make: *** [Makefile:15: segment.o] Error 1

I've tried installing ffserver from the ffmpeg 3.4 branch, but there's a lot more problems than you see in log above. Also, from my understanding this is a legit replacement for ffserver. Was anyone successful at compiling it on Rpi4?