Firefly Media server on NMT

[gsolaro]

I tried to find any information about this, but i just find closed forums (like here). So, i started trying out some things.

I compiled successfully mt-daapd on my laptop, but i ran into a strange issue: when i try start it, reports cannot open songs.gdb and the strerror message is: File exists (???).

Now i stopped here, i doesn't have enough C knowledge to step over it. I searching anybody who can help me.

[pac^man]

Hello gsolaro,

you crosscompiled mt-daapd for the NMT on your laptop?
If you tell me how to setup the environment for compiling NMT apps I might be able to help you with this.

[gsolaro]

(08-16-2010 10:52 PM)pac^man Wrote:  Hello gsolaro,

you crosscompiled mt-daapd for the NMT on your laptop?
If you tell me how to setup the environment for compiling NMT apps I might be able to help you with this.

I upload my build environment for you but you will have a little problem with it: my laptop system is crashed in a last days, and the package contains files with wrong permissions (everything is executable). I currently cannot fix it (from windows), so this is will your job... sry.

Anyway, this is a working root, it contains a compiler, uClibC, and packages what i compiled for it.

I compiled:
- sqlite-3.6.23.1
- libid3tag-0.15.1b
- zlib-1.2.3
- gdbm-1.8.3 (probably buggy?)
- mt-daapd-0.2.4.2

I compiled everything as static lib.

But this is just a devel environment, i don't know how can i create a debug environment - i'm quite newbie in cross-compiling world.

You can download it from here

[pac^man]

(08-16-2010 11:59 PM)gsolaro Wrote:  I upload my build environment for you but you will have a little problem with it:...

You can download it from here

Thanks for uploading it.
But I'd rather prepare everything from scratch myself.
Do you have a HowTo somewhere according to which I could do this?

[dc11ab]

pac^man, if you just want to setup a crosscompiling environment for the 100-series there is info on the NMT wiki:
http://www.networkedmediatank.com/wiki/i...ox_for_NMT

and more if you search this board (for 200-series, etc).

[pac^man]

(08-16-2010 11:59 PM)gsolaro Wrote:  I compiled:
- sqlite-3.6.23.1
- libid3tag-0.15.1b
- zlib-1.2.3
- gdbm-1.8.3 (probably buggy?)
- mt-daapd-0.2.4.2

I compiled everything as static lib.

I compiled zlib, gdbm, libid3tag statically and now I'm stuck at the mt-daapd build.

How did you manage to build mt-daapd with the static libid3tag.a?
I can't seem to find the correct configure option and always end up with

Code:

checking for id3_file_open in -lid3tag... no
Must have libid3tag

[dc11ab]

Doesn't --with-id3tag=/path/to/the/libid3library do the trick?

[pac^man]

(08-17-2010 08:01 PM)dc11ab Wrote:  Doesn't --with-id3tag=/path/to/the/libid3library do the trick?

No, it didn't.
Actually I've never dealt with static libraries before and am therefore not sure on how to work with them here now.
So I restarted with dynamic libraries and seeing this in the configure output I feel more comfortable:

Code:

...
checking for gdbm.h... yes
checking for gdbm_open in -lgdbm... yes
Have gdbm
Adding dynamic libgdbm
checking id3tag.h usability... yes
checking id3tag.h presence... yes
checking for id3tag.h... yes
checking for id3_file_open in -lid3tag... yes
Have id3tag
Adding dynamic libid3tag
...

Unfortunately make fails now with the following error:

Code:

/nmt/usr/local/mips/bin/../lib/gcc/mipsel-linux-uclibc/4.0.4/../../../../mipsel-linux-uclibc/bin/ld: cannot find -lz
collect2: ld returned 1 exit status

which made me remember that I hadn't built a shared zlib.

So I went back into the zlib-1.2.5 directory and am stuck there now because I don't know how to built a shared zlib. I get the following error when doing the configure:

Code:

mipsel-linux-uclibc-gcc: ${exec_prefix}/lib/libz.1.dylib: No such file or directory
mipsel-linux-uclibc-gcc: 1: No such file or directory
mipsel-linux-uclibc-gcc: 1.2.5: No such file or directory
mipsel-linux-uclibc-gcc: unrecognized option '-compatibility_version'
mipsel-linux-uclibc-gcc: unrecognized option '-current_version'
No shared library support; try without defining CC and CFLAGS
Building static library libz.a version 1.2.5 with /nmt/usr/local/mips/bin/mipsel-linux-uclibc-gcc.

Now I don't have a clue how to proceed.

[dc11ab]

While trying for static, did you add: --enable-static ?

Would it be insane to add --disable-zlib ?

No help from ./configure --help ?

Perhaps you can edit the Makefile and do ugly stuff, like adding linking path to the libz.* ?


Sorry I can't be of much more help. I'm a compiling newbie.

[pac^man]

Disabling zlib is out of the question, there's "include zlib.h" in the mt-daapd source code
I'll wait for gsolaro before doing ugly stuff, after all he managed to compile it.

[dc11ab]

Here's a hint on how zlib was made, but I haven't read the thread and topic in context:
http://www.networkedmediatank.com/showth...3#pid96263

[volkris]

Has anyone had any luck with this? I started with gsolaro's tree and had even less success than he had.

[roteeuwen]

Man, that would be great! If somebody has the firefly media server working on the NMT please help (or another server that supports eing a iTunes Server).

Kind regards,

[gsolaro]

Hey guys,

Sorry for a big silence. I have really no time for this project sadly.

The good news is I successfully compiled and started the mt-daapd on my BluePanther Syvio 200A mediaplayer!

So, the needed steps is following:

- Grab the previously linked toolchain, that is only one what I could make work.
- Grab and compile the dependencies, in order:

Code:

## Preparation
mkdir -p $HOME/tmp/sysroot # Here goes the stuffs what we will scp to our mediacenter
export D=$HOME/tmp/sysroot

## Compilations. Before dollar sign, you can see the current dir, what informs you what we compiling currently. This and the dollar sign is not a part of the command!

zlib-1.2.6 $ CC=/opt/toolchain-mipsel_gcc3.4.6/bin/mipsel-linux-uclibc-gcc LD=/opt/toolchain-mipsel_gcc3.4.6/bin/mipsel-linux-uclibc-ld ./configure --static --prefix=/mnt/custom && make && make DESTDIR=$D install

sqlite-autoconf-3071000 $ ./configure --host=mipsel-linux-uclibc --target=mipsel-linux-uclibc CC=mipsel-linux-uclibc-gcc --disable-readline --disable-shared --enable-static --disable-dynamic-extensions --disable-threadsafe --libdir=/mnt/custom/lib --prefix=/mnt/custom && make && DESTDIR=$D install

libid3tag-0.15.1b $ ./configure --host=mipsel-linux-uclibc --target=mipsel-linux-uclibc CC=mipsel-linux-uclibc-gcc  --disable-shared --enable-static  CFLAGS="-I${D}/usr/local/include" CPPFLAGS="-I${D}/usr/local/include"  LDFLAGS="-L${D}/usr/local/lib" && make && DESTDIR=$D install

The tricky thing is the mt-daapd itself. The configure line is the following:

Code:

./configure --host=mipsel-linux-uclibc --target=mipsel-linux-uclibc CC=mipsel-linux-uclibc-gcc  --disable-shared --enable-static --enable-gdbm  --enable-sqlite3 --with-sqlite3-includes=$D/mnt/custom/include --with-sqlite3-libs=$D/mnt/custom/lib --with-id3tag=$D/mnt/custom   --enable-mdns --disable-iconv --prefix=/mnt/custom LDFLAGS="-static $D/mnt/custom/lib/libz.a" CFLAGS="-D__USE_UNIX98" CPPFLAGS="-D__USE_UNIX98 -DSETPGRP_VOID" ac_cv_lib_id3tag_id3_file_open=yes ac_cv_func_setpgrp_void=yes

But, before issue make command, edit the /opt/toolchain-mipsel_gcc3.4.6/include/bits/pthreadtypes.h and comment out L97 and L117 (just these lines, the lines between them leave untouched!).
Next, edit src/main.c and around L94 you will see the following (the following code contains line numbers):

Code:

90 #ifndef DEFAULT_CONFIGFILE
91 #ifdef NSLU2
92 #define DEFAULT_CONFIGFILE "/opt/etc/mt-daapd/mt-daapd.conf"
93 #else
94 #define DEFAULT_CONFIGFILE "/etc/mt-daapd.conf"
95 #endif
96 #endif

As you see, the L94 contains the fallback config file location. You can edit it for your fits. I targeted it to /mnt/custom/mt-daapd.conf but if you want to edit it from SMB then point it to /opt/sybhttpd/localhost.drives/HARD_DISK/mt-daapd.conf

Next, start make, and see the make command is failing. But no worries!
There is a final command (you must execute it after make failing:

Code:

mipsel-linux-uclibc-gcc  -D__USE_UNIX98  -static /home/hron/build/nmt/sysroot/mnt/custom/lib/libz.a  -L/home/hron/build/nmt/sysroot/mnt/custom/lib -o mt-daapd  main.o uici.o webserver.o configfile.o err.o restart.o daap-proto.o daap.o db-gdbm.o mp3-scanner.o playlist.o lexer.o parser.o strcasestr.o strsep.o redblack.o dynamic-art.o query.o mDNS.o mDNSPosix.o mDNSUNP.o rend-posix.o rend-unix.o -lgdbm -lid3tag -lz -lpthread

The trick what I did there is the reordering of arguments, moving -l switches to the end of command is solves the limitations of GCC 3.x.

Finally, you can execute

Code:

make DESTDIR=$D install

. After this, you will get ~6MB directory at $HOME/tmp/sysroot. You can upload this directory's content to your mediacenter's root:

Code:

scp -r $D/mnt/custom root@YOUR_MC_IP:/mnt/

Then, create a mt-daapd.conf and upload where you specified in main.c. After it, you can start mt-daapd with executing the binary without arguments. It forks to background, no worries.

Tip: mt-daapd currently have an mdns-advertisement feature, so you do not need to start mDNSresp-mips utility for it, mt-daapd can advertise itself alone.

And that's all. If there is a question about it, please drop me a PM because I am not active on this forum.