<snip>
gn -Wpointer-arith -Wwrite-strings -Wundef -Wmissing-prototypes -Wredundant-decls -Wextra -Wno-sign-compare -Wformat-security -Wold-style-definition -Wno-pointer-sign -Werror-implicit-function-declaration -Wno-un
used-parameter -Wno-missing-field-initializers -MMD -MP -MF .dep-op-sndio.lo -DREALTIME_SCHEDULING -D_FILE_OFFSET_BITS=64  -fPIC -o op/sndio.lo op/sndio.c
ip/ffmpeg.c:229:3: error: call to undeclared function 'avcodec_close'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
  229 |                 avcodec_close(cc);
      |                 ^
ip/ffmpeg.c:292:2: error: call to undeclared function 'avcodec_close'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
  292 |         avcodec_close(priv->codec_context);
      |         ^
2 errors generated.