Build fails with "error: ‘av_register_all’ was not declared in this scope"

[TylerTheHumanCompiler]

Build fails with the following error:

[100/308] Compiling src/essentia/utils/audiocontext.cpp
../src/essentia/utils/audiocontext.cpp: In constructor ‘essentia::AudioContext::AudioContext()’:
../src/essentia/utils/audiocontext.cpp:33:3: error: ‘av_register_all’ was not declared in this scope
   33 |   av_register_all(); // this should be done once only..
      |   ^~~~~~~~~~~~~~~
../src/essentia/utils/audiocontext.cpp: In member function ‘int essentia::AudioContext::create(const std::string&, const std::string&, int, int, int)’:
../src/essentia/utils/audiocontext.cpp:48:53: error: invalid conversion from ‘const AVOutputFormat*’ to ‘AVOutputFormat*’ [-fpermissive]
   48 |   AVOutputFormat* av_output_format = av_guess_format(format.c_str(), 0, 0);
      |                                      ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
      |                                                     |
      |                                                     const AVOutputFormat*
../src/essentia/utils/audiocontext.cpp:67:42: error: ‘AVStream’ {aka ‘struct AVStream’} has no member named ‘codec’
   67 |   _codecCtx                 = _avStream->codec;
      |                                          ^~~~~

[DarshReddy]

I am getting same errors when trying to compile for android

../src/essentia/utils/audiocontext.cpp:33:3: error: use of undeclared identifier 'av_register_all'
   33 |   av_register_all(); // this should be done once only..
      |   ^
../src/essentia/utils/audiocontext.cpp:48:19: error: cannot initialize a variable of type 'AVOutputFormat *' with an rvalue of type 'const AVOutputFormat *'
   48 |   AVOutputFormat* av_output_format = av_guess_format(format.c_str(), 0, 0);
      |                   ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/essentia/utils/audiocontext.cpp:67:42: error: no member named 'codec' in 'AVStream'
   67 |   _codecCtx                 = _avStream->codec;
      |                               ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:72:14: error: no member named 'channels' in 'AVCodecContext'
   72 |   _codecCtx->channels       = nChannels;
      |   ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:73:14: error: no member named 'channel_layout' in 'AVCodecContext'
   73 |   _codecCtx->channel_layout = av_get_default_channel_layout(nChannels);
      |   ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:73:31: error: use of undeclared identifier 'av_get_default_channel_layout'
   73 |   _codecCtx->channel_layout = av_get_default_channel_layout(nChannels);
      |                               ^
../src/essentia/utils/audiocontext.cpp:77:12: error: cannot initialize a variable of type 'AVCodec *' with an rvalue of type 'const AVCodec *'
   77 |   AVCodec* audioCodec = avcodec_find_encoder(_codecCtx->codec_id);
      |            ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/essentia/utils/audiocontext.cpp:125:49: error: no member named 'channels' in 'AVCodecContext'
  125 |       _codecCtx->frame_size = 4096 / _codecCtx->channels / av_get_bytes_per_sample(AV_SAMPLE_FMT_S16);
      |                                      ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:140:57: error: no member named 'channels' in 'AVCodecContext'
  140 |                                              _codecCtx->channels, 
      |                                              ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:145:20: error: no member named 'filename' in 'AVFormatContext'
  145 |   strncpy(_muxCtx->filename, _filename.c_str(), sizeof(_muxCtx->filename));
      |           ~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:145:65: error: no member named 'filename' in 'AVFormatContext'
  145 |   strncpy(_muxCtx->filename, _filename.c_str(), sizeof(_muxCtx->filename));
      |                                                        ~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:151:65: error: no member named 'channel_layout' in 'AVCodecContext'
  151 |   av_opt_set_int(_convertCtxAv, "in_channel_layout", _codecCtx->channel_layout, 0);
      |                                                      ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:152:66: error: no member named 'channel_layout' in 'AVCodecContext'
  152 |   av_opt_set_int(_convertCtxAv, "out_channel_layout", _codecCtx->channel_layout, 0);
      |                                                       ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:194:28: error: no member named 'codec' in 'AVStream'
  194 |   avcodec_close(_avStream->codec);
      |                 ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:198:24: error: no member named 'codec' in 'AVStream'
  198 |   av_freep(&_avStream->codec);
      |             ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:218:18: error: no member named 'channels' in 'AVCodecContext'
  218 |   if (_codecCtx->channels != 2) {
      |       ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:219:100: error: no member named 'channels' in 'AVCodecContext'
  219 |     throw EssentiaException("Trying to write stereo audio data to an audio file with ", _codecCtx->channels, " channels");
      |                                                                                         ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:243:18: error: no member named 'channels' in 'AVCodecContext'
  243 |   if (_codecCtx->channels != 1) {
      |       ~~~~~~~~~  ^
../src/essentia/utils/audiocontext.cpp:244:98: error: no member named 'channels' in 'AVCodecContext'
  244 |     throw EssentiaException("Trying to write mono audio data to an audio file with ", _codecCtx->channels, " channels");
      |                                                                                       ~~~~~~~~~  ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

Waf: Leaving directory `/Users/darshreddy/Artium/essentia/build'
Build failed
 -> task in 'essentia' failed with exit status 1: 
	{task 4391454768: cxx audiocontext.cpp -> audiocontext.cpp.1.o}
['/usr/bin/clang++', '-std=c++11', '-pipe', '-Wall', '-O2', '-fPIC', '-std=c++11', '-I/usr/local/include', '-w', '-fPIC', '-Isrc', '-I../src', '-Isrc/essentia', '-I../src/essentia', '-Isrc/essentia/scheduler', '-I../src/essentia/scheduler', '-Isrc/essentia/streaming', '-I../src/essentia/streaming', '-Isrc/essentia/streaming/algorithms', '-I../src/essentia/streaming/algorithms', '-Isrc/essentia/utils', '-I../src/essentia/utils', '-Isrc/3rdparty', '-I../src/3rdparty', '-Isrc/3rdparty/spline', '-I../src/3rdparty/spline', '-Isrc/3rdparty/nnls', '-I../src/3rdparty/nnls', '-Isrc/3rdparty/cephes/bessel', '-I../src/3rdparty/cephes/bessel', '-I/opt/homebrew/Cellar/eigen/3.4.0_1/include/eigen3', '-I/opt/homebrew/Cellar/ffmpeg/7.0.2/include', '-I/opt/homebrew/Cellar/libsamplerate/0.2.2/include', '-DGTEST_HAS_TR1_TUPLE=0', '-DHAVE_EIGEN3=1', '-DEIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS', '-DHAVE_AVCODEC=1', '-DHAVE_AVFORMAT=1', '-DHAVE_AVUTIL=1', '-DHAVE_SWRESAMPLE=1', '-DHAVE_SAMPLERATE=1', '-D__STDC_CONSTANT_MACROS', '-DEIGEN_MPL2_ONLY', '../src/essentia/utils/audiocontext.cpp', '-c', '-o/Users/darshreddy/Artium/essentia/build/src/essentia/utils/audiocontext.cpp.1.o', '-fPIC', '-I/opt/homebrew/opt/mysql@5.7/include']

[luckysmg]

Get same error when build ios

[DarshReddy]

Hi @dbogdanov can you please help here? this is happening even on normal build from master branch