Re: [Linphone-users] Re: cross-compiling linphone for w32 on fedora 11

[Simon Morlat]

Le jeudi 10 septembre 2009 21:42:47, address@hidden a écrit :
> Simon Morlat <address@hidden> writes:
> > Most distros disable video encoders in ffmpeg, for patent reasons.
> > You perhaps have one of your ffmpeg that has encoders disabled,
> > preventing one side to send any video packet.
>
> I compiled ffmpeg from source.
> The ffmpeg configure script claims all sorts of encoders, including
> payload 34, h263, that we are testing with.
>
> Can I query what codecs are available somehow in the mediastreamer api?
>
> Also, when things doesnt work we get a trace from this line in videoenc.c:
>
>               ms_error("Unsupported codec id %i",s->codec);
>
> the id reported is 2.
THis number matches the CodecID enum declared in libavcodec/avcodec.h.
Seems like ffmpeg isn't able to provide linphone with the requested codec.
Make sure you do not have two libavcodec.so or .a installed on your system 
(/usr/ or /usr/local). It is common that linphone is compiled with the 
distro's ffmpeg instead of the manually compiled ffmpeg, usually installed in 
/usr/local.


SImon

>
> > SImon
> >
> > Le jeudi 10 septembre 2009 15:57:19, address@hidden a écrit :
> >> address@hidden writes:
> >> > Simon Morlat <address@hidden> writes:
> >> >> Hi,
> >> >>
> >> >> Win32 cross-compilation is not supported.
> >> >> Linphone Win32 compilation is something difficult, I spent weeks on
> >> >> it. In the svn, it is documented in README.mingw, and following
> >> >> carefully this doc you should able to succeed within a day of work.
> >> >> I have little hope that cross-compilation could work someday. I tried
> >> >> a bit, but with my favourite distro the mingw cross compile tools are
> >> >> totally outdated (gcc-3.4) and have no chance of success.
> >> >
> >> > I got mediastreamer2/tests/mediastreamer.exe cross compiled, and it
> >> > sort of works.
> >> >
> >> > It shows my webcam video, and also the remote video streamed to me.
> >> > However, the remote side doesnt get any video.
> >> >
> >> > Have I forgot something obviuous? How shall I proceed with debugging?
> >>
> >> Forgot: theora video seems to work sometimes in both directions, h263
> >> only in one.
> >>
> >> >> Simon
> >> >>
> >> >> Le mercredi 2 septembre 2009 17:00:14, address@hidden a écrit :
> >> >>> I'm trying to cross compile linphone for w32 on a fedora 11 box
> >> >>> using mingw32, but its not going well.
> >> >>>
> >> >>> First I appear to need libosip and libexosip.
> >> >>>
> >> >>> libosip2 compiled fine with this:
> >> >>> ./configure --host=i686-pc-mingw32 --enable-mt=no
> >> >>> --prefix=/usr/i686-pc-mingw32/sys-root/mingw && sudo make install
> >> >>>
> >> >>> libexosip doesnt go too well though. I get lots of issues when
> >> >>> trying to include the w32 plattform sdk includes. Any hints?