[MPlayer-dev-eng] mplayer + codec(*.so)

[houdiney]

> -----邮件原件-----
> 发件人: Diego Biurrun [mailto:diego at biurrun.de] 
> 发送时间: 2008年12月27日 18:22PM cc
> 收件人: mplayer-dev-eng at mplayerhq.hu
> 主题: Re: [MPlayer-dev-eng] mplayer + codec(*.so)
> 
> On Sat, Dec 27, 2008 at 10:35:57AM +0800, houdiney wrote:
> > 
> > On Fri, Dec 26, 2008 at 09:26:59PM +0800, houdiney wrote:
> > >     I have been puzzled in a question: I wanna integrate
> > > a midi lib(libmidi.so) into mplayer, so in the directory
> > > .../mplayer/libmpcodecs/, I created file ad_midi.c like
> > > some other codec's(ex. ad_libmad.c), as follows:
> > >
> > > //-----------------------------------
> > > [...]  
> > > //-----------------------------------
> > > 
> > > then, in the file ad.c, I added :
> > > extern ad_functions_t mpcodecs_ad_libmidi; 
> > > in struct mpcodecs_ad_drivers:
> > > &mpcodecs_ad_libmidi 
> > > in file .../libmpcodecs/Makefile, add:
> > >   SRCS_COMMON-$(LIBMIDI)  += ad_libmidi.c 
> > > 
> > > then type "make" in a shell in directory mplayer, bu 
> error follows:
> > > ...
> > > libmpcodecs/libmpcodecs.a(ad.o):(.data+0x58): undefined 
> reference to `mpcodecs_ad_libmidi' 
> > > 
> > > Could someone give me an advise on what I should  do next ?
> > In this order of importance:
> > 1) Get a mail client that does not break threads.
> > 2) Learn what top-posting is and avoid it.
> > 3) Hook up ad_midi.c in the Makefile.
> > 
> > 
> > Thank you for your reply, and your order.
> > Am I in the right way to write and reply a post ?
> 
> You are getting closer, but your mail client is still 
> basically useless.
> It does not indent the quoted text, it does not break lines.  
> Get a new
> one.
> 
> > I have found the explain of "top-posting" at
> > http://www.idallen.com/topposting.html, thank you for your 
> pointing out!
> 
> I somewhat prefer the explanation linked to on our mailing list page
> (also the first hit on Google), from Wikipedia, where you will also
> learn what interleaved quoting is.
> 
> > Return to the question:
> > you said "Hook up ad_midi.c in the Makefile" yesterday , and I had
> > added it in file .../libmpcodecs/Makefile as:
> > 
> >     "SRCS_COMMON-$(LIBMIDI)  += ad_libmidi.c" 
> 
> Are you setting LIBMIDI in configure/config.mak?
yes, this problem has been sloved. I added ad_libmidi.c to SRCS_COMMON = \ ,
so it is compiled without check. 
> 
> > so, is there something else ?
> 
> I should have noticed earlier: You are using a version of MPlayer that
> is older than the sun.  Try Subversion HEAD.
> 
> Diego
> 
> P.S.: There is no need to CC me, I am subscribed.
> 
> 
Hi, Diego
Is this letter upder rules ?
Thanks a lot for your guide , which leads me to be close to a regular member of a great mail-list.
I found that mplayer's source does not include midi file's demuxer, so it maybe a hard work for me to intergrate 
midi codec into mplayer, but for implementing this aim , I should first master the method of adding a general codec .
any question, i would beg your help, ok? :)