Cannot compile Kodi 19 from git with latest ffmpeg from git.

[breisig]

I am installing the latest ffmpeg from git and compiling the latest Kodi 19 [Matrix] branch today from git and getting the following error message when compiling Kodi.

[  0%] Built target kodi-xrandr
[  0%] Built target crossguid
[  1%] Built target dvdcss
[  2%] Built target dvdread
[  3%] Built target dvdnav
[  7%] Built target upnp
[  7%] Built target network_upnp
[  7%] Built target sse4
[  9%] Built target wrapper
[  9%] Built target wrapper.def
[  9%] Built target wrap_libdvdnav
[  9%] Built target kodi-libraries
[  9%] Copying files into build tree
[  9%] Built target export-files
[ 10%] Built target compileinfo
[ 10%] Built target rp-process-x11
[ 10%] Built target processX11
[ 11%] Built target windowing_X11
[ 11%] Built target cores
Consolidate compiler generated dependencies of target audioengine
[ 11%] Building CXX object build/cores/audioengine/CMakeFiles/audioengine.dir/Encoders/AEEncoderFFmpeg.cpp.o
/tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp: In member function 'virtual bool CAEEncoderFFmpeg::Initialize(AEAudioFormat&, bool)':
/tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp:94:33: error: invalid conversion from 'const AVCodec*' to 'AVCodec*' [-fpermissive]
   94 |     codec = avcodec_find_encoder(m_CodecID);
      |             ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
      |                                 |
      |                                 const AVCodec*
/tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp: In member function 'virtual int CAEEncoderFFmpeg::Encode(uint8_t*, int, uint8_t*, int)':
/tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp:266:24: warning: 'void av_init_packet(AVPacket*)' is deprecated [-Wdeprecated-declarations]
  266 |   av_init_packet(&m_Pkt);
      |                        ^
In file included from /usr/include/libavcodec/bsf.h:30,
                 from /usr/include/libavcodec/avcodec.h:44,
                 from /tmp/xbmc-20210502/xbmc/cores/AudioEngine/Interfaces/AEEncoder.h:14,
                 from /tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.h:11,
                 from /tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp:12:
/usr/include/libavcodec/packet.h:474:6: note: declared here
  474 | void av_init_packet(AVPacket *pkt);
      |      ^~~~~~~~~~~~~~
/tmp/xbmc-20210502/xbmc/cores/AudioEngine/Encoders/AEEncoderFFmpeg.cpp:271:13: error: 'avcodec_encode_audio2' was not declared in this scope; did you mean 'avcodec_encode_subtitle'?
  271 |   int ret = avcodec_encode_audio2(m_CodecCtx, &m_Pkt, frame, &got_output);
      |             ^~~~~~~~~~~~~~~~~~~~~
      |             avcodec_encode_subtitle
make[2]: *** [build/cores/audioengine/CMakeFiles/audioengine.dir/build.make:104: build/cores/audioengine/CMakeFiles/audioengine.dir/Encoders/AEEncoderFFmpeg.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:5079: build/cores/audioengine/CMakeFiles/audioengine.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

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[lrusak]

What ffmpeg version are you using?

EDIT: for clarity, the matrix branch requires ffmpeg 4.3 and doesn't have the changes required to use ffmpeg 4.4 or newer.

[breisig]

@lrusak That might make sense, Using ffmpeg [Hash: 5541cff on master branch- 2021-05-03]

[asavah]

Afaik after 4.4 was tagged some major api changes landed in ffmpeg, a whole bunch of deprecated functions were completely removed. This started with FFmpeg/FFmpeg@4b2be3f This affects a lot of software packages which use ffmpeg. The solution is to avoid ffmpeg master for now.