[rtmpdump] Compiling rtmpdump on Windows

[Michael Nye]

Hi All,

There are half a dozen guides online for compiling rtmpdump on Windows but
most are many years old and don't seem to be relevant.  From what I've
pieced together from them though I have managed to "compile" the latest
version of rtmpdump but

a) get some warnings during make, which I'm not sure I should be
b) get either DNS errors or "failed to create socket" errors when I try to
use my build.

When there are no such problems when I use the last windows release.  I
want to compile the latest code base as the last windows release seems to
be quite a bit behind and I'm getting what appears to be buffering errors
which may be fixed/addressed in newer commits.

I'm not great with c++ builds - I've got mingw / msys and also cygwin all
installed with a variety of library dependency downloaded.

Anyway my build output is as below.  If anyone can give me pointers (or is
willing to write a fresh/current guide for Windows 10) it would be
appreciated.

$ make SYS=mingw
> make[1]: Entering directory '/cygdrive/c/Repo/rtmpdump/librtmp'
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\" -DUSE_OPENSSL  -O2 -fPIC   -c -o
> rtmp.o rtmp.c
> rtmp.c:1:0: warning: -fPIC ignored for target (all code is position
> independent)
>  /*
>  ^
> rtmp.c: In function ‘RTMP_ReadPacket’:
> rtmp.c:3555:7: warning: variable ‘didAlloc’ set but not used
> [-Wunused-but-set-variable]
>    int didAlloc = FALSE;
>        ^
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\" -DUSE_OPENSSL  -O2 -fPIC   -c -o
> log.o log.c
> log.c:1:0: warning: -fPIC ignored for target (all code is position
> independent)
>  /*
>  ^
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\" -DUSE_OPENSSL  -O2 -fPIC   -c -o
> amf.o amf.c
> amf.c:1:0: warning: -fPIC ignored for target (all code is position
> independent)
>  /*
>  ^
> In file included from amf.c:33:0:
> bytes.h:74:2: warning: #warning "Float word order not defined, assuming
> the same as byte order!" [-Wcpp]
>  #warning "Float word order not defined, assuming the same as byte order!"
>   ^
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\" -DUSE_OPENSSL  -O2 -fPIC   -c -o
> hashswf.o hashswf.c
> hashswf.c:1:0: warning: -fPIC ignored for target (all code is position
> independent)
>  /*
>  ^
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\" -DUSE_OPENSSL  -O2 -fPIC   -c -o
> parseurl.o parseurl.c
> parseurl.c:1:0: warning: -fPIC ignored for target (all code is position
> independent)
>  /*
>  ^
> ar rs librtmp.a rtmp.o log.o amf.o hashswf.o parseurl.o
> ar: creating librtmp.a
> gcc -shared -Wl,--out-implib,librtmp.dll.a  -o librtmp-1.dll rtmp.o log.o
> amf.o hashswf.o parseurl.o  -lssl -lcrypto -lz -lws2_32 -lwinmm -lgdi32
> ln -sf librtmp-1.dll librtmp.dll
> make[1]: Leaving directory '/cygdrive/c/Repo/rtmpdump/librtmp'
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\"   -O2   -c -o rtmpdump.o rtmpdump.c
> rtmpdump.c: In function ‘main’:
> rtmpdump.c:727:16: warning: ‘optarg’ redeclared without dllimport
> attribute: previous dllimport ignored [-Wattributes]
>    extern char *optarg;
>                 ^
> gcc -Wall  -o rtmpdump.exe rtmpdump.o -Llibrtmp -lrtmp -lssl -lcrypto -lz
> -lws2_32 -lwinmm -lgdi32
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\"   -O2   -c -o rtmpgw.o rtmpgw.c
> gcc -Wall  -o rtmpgw.exe rtmpgw.o thread.o  -Llibrtmp -lrtmp -lssl
> -lcrypto -lz -lws2_32 -lwinmm -lgdi32
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\"   -O2   -c -o rtmpsrv.o rtmpsrv.c
> gcc -Wall  -o rtmpsrv.exe rtmpsrv.o thread.o  -Llibrtmp -lrtmp -lssl
> -lcrypto -lz -lws2_32 -lwinmm -lgdi32
> gcc -Wall   -DRTMPDUMP_VERSION=\"v2.4\"   -O2   -c -o rtmpsuck.o rtmpsuck.c
> gcc -Wall  -o rtmpsuck.exe rtmpsuck.o thread.o  -Llibrtmp -lrtmp -lssl
> -lcrypto -lz -lws2_32 -lwinmm -lgdi32


When I try to run I firstly get this error

C:/Repo/rtmpdump/rtmpdump.exe: error while loading shared libraries:
> librtmp-1.dll: cannot open shared object file: No such file or directory


When I copy this DLL out of the child folder and into the rtmpdump folder
it then seems to work, but then I get unexpected errors

If I use a DNS alias:

Connecting ...
> ERROR: Problem accessing the DNS.
> DEBUG: Closing connection.


If I use a direct IP:

Connecting ...
> ERROR: RTMP_Connect0, failed to create socket. Error: 22
> DEBUG: Closing connection.


Alternatively if anyone is actively developing still and can provide a new
Windows release, that would be appreciated.  However I would like to build
myself so I can attempt to debug/fix the errors I get.

Thanks,

Michael.
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