mpd player within Asus WL-500gP

[pheidrias]

Hello together!

Still on the search for a music streamer/player, I came back to try mpd from opkg.
Things work fine with MP3s when played with locally attached USB-Soundcard.

But when it comes to OGG-Files, there is only a once a second short crisp.
Seems to be a known (and fixed?) problem:
https://dev.openwrt.org/ticket/9280
https://forum.openwrt.org/viewtopic.php?id=29475
https://forum.openwrt.org/viewtopic.php?pid=133669

However in my case, OGGs are at least indexed. I use the opkg-version (0.16.5), which should have built-in the fix?

Second problem is the http-streaming. When started (with MP3 ;-) ), CPU load goes up in the sky and I get some milli-seconds of music every minute using VLC on my PC here. This is also documented (http://musicpd.org/mantis/view.php?id=3330 and many more) and reported to be fixed?

So any ideas, wether the actual wl500g-build may be broken?

I wanted to compile it on my own, but couldn't find a c-compiler in opkg - any solution to this?

And last but not least: is there any way, to get the binaries of the older versions to try wether there is some working version?

Thanks a lot for help,
pheidrias

[ryzhov_al]

I wanted to compile it on my own, but couldn't find a c-compiler in opkg - any solution to this?

opkg is a small program for managing existing packages, it does not include compiler or something else.

My mpd Makefile taken from OpenWRT trunk and mpd was built with OGG support. You may try to build your own mpd version, just follow this manual.

[pheidrias]

This refers to cross-compiling, then? It's supposed to be done on my linux machine?

If it could be done on the router, I do miss a svn-package :-(.

Are there any older mpd-versions from your opkg (remember to have read something on versioning with opkg)?

Thanks!

[!gm]

don't compile it on the router - you'll lose many hours/days preparing the system and compiling the openwrt packages

[pheidrias]

Okay...I tried to follow the HowTo (http://code.google.com/p/wl500g-repo.../trunk/INSTALL) by copy/pasting the instructions (took the newest revision instead of r3458).

Maybe I misunderstood it, but the last step failed

~/Soft/openwrt/trunk$ make package/compile V=99
make[1]: Entering directory `/home/guntram/Soft/openwrt/trunk'
make[2]: Entering directory `/home/guntram/Soft/openwrt/trunk/package/opkg'
make[2]: Leaving directory `/home/guntram/Soft/openwrt/trunk/package/opkg'
make[2]: Entering directory `/home/guntram/Soft/openwrt/trunk/package/base-files-network'
make[2]: Leaving directory `/home/guntram/Soft/openwrt/trunk/package/base-files-network'
make[2]: Entering directory `/home/guntram/Soft/openwrt/trunk/package/base-files'
cp -fpR /home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libuClibc-*.so /home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libcrypt-*.so /home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libm-*.so /home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libpthread-*.so /home/guntram/Soft/openwrt/trunk/build_dir/linux-rtn/base-files/
cp: cannot stat `/home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libuClibc-*.so': No such file or directory
cp: cannot stat `/home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libcrypt-*.so': No such file or directory
cp: cannot stat `/home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libm-*.so': No such file or directory
cp: cannot stat `/home/guntram/Soft/openwrt/trunk/staging_dir/toolchain-mipsel_gcc-4.6-linaro_uClibc-0.9.33/lib/libpthread-*.so': No such file or directory
make[2]: *** [/home/guntram/Soft/openwrt/trunk/build_dir/linux-rtn/base-files/.built] Error 1
make[2]: Leaving directory `/home/guntram/Soft/openwrt/trunk/package/base-files'
make[1]: *** [package/base-files/compile] Error 2
make[1]: Leaving directory `/home/guntram/Soft/openwrt/trunk'
make: *** [package/compile] Fehler 2

If I try make mpd-full/compile instead, it breaks down immediately (No rule to make target `mpd-full/compile')...
This will be the point where I have to tell him your posted make-file? How?

Thanks for further support!

Although I'm learning some things here - could someone of you guys please test, wether MPD on your routers is able to play OGG-files? Maybe its really a package problem and not just my personal fault...thank you!

[pheidrias]

Hello again!

I figured out, that the problem seems to stem from resampling. This takes too much CPU and therefore makes the playback quite impossible (CPU load > 95% for mpd when playing OGG).

Maybe there is some misconfiguration for mpd 0.16.5?
It worked when I was using mpd 0.15...

[ryzhov_al]

I figured out, that the problem seems to stem from resampling. This takes too much CPU and therefore makes the playback quite impossible (CPU load > 95% for mpd when playing OGG).

Unfortunately, our CPU have no FPU, only FPU emulation unit. This is why massive floating point calculations is painfully slow.
But! You may relink the mpd from libvorbis to libvorbisidec - a library with integer numbers only algorithms. See Makefile for details.

[!gm]

You may relink the mpd from libvorbis to libvorbisidec - a library with integer numbers only algorithms.

if thats working, all applications on our devices using this lib, should be relinked

I don't have any ogg-files now, but am willing to test it with minidlna this night...

[pheidrias]

But! You may relink the mpd from libvorbis to libvorbisidec - a library with integer numbers only algorithms. See Makefile for details.

Unfortunately the makefile doesn't tell me anything ...as my above post demonstrates, I'm still stuck on the last step of preparing my system for cross-compiling...

Or can I "symlink" the libraries?

I don't have any ogg-files now, but am willing to test it with minidlna this night...

Shall I send you one?
I even get those problems with madplay --> in case, minidlna doesn't produce problems (for other reasons?)...

[pheidrias]

@!gm: Have you had time to give it a try?

@ryzhov_al: Could you please help me in setting up this compiling/linking (see above post)?
As mpd seems to use ogg-reencoding for http-streaming, too, there seems to be a real need for this thing!

Thanks a lot,
pheidrias

[ryzhov_al]

@ryzhov_al: Could you please help me in setting up this compiling/linking (see above post)?

Sorry, I did not have enough time to teach each member of our forum. Please, refer my guide and this topic.

[pheidrias]

Sorry, I did not have enough time to teach each member of our forum.

Of course! You're already doing a great job in sharing your projects with us!
I didn't want to sound too demanding...sorry for this.

I posted the error message I get when trying to follow your HowTo in my earlier post (01-03-2012 12:24) - I don't understand what I've made wrong?

Thanks,
pheidrias

[!gm]

toolchain is not well installed.

did you read my success story?

http://wl500g.info/showpost.php?p=244468&postcount=19
http://wl500g.info/showpost.php?p=244521&postcount=23

^these are the most important posts

[pheidrias]

hmmm...my problem seems to be at another place...
However, I may have overseen the following error message the first time I tried the compilation.
When I do "make toolchain" it stops with:

Ausgecheckt, Revision 3458.
cp -f ../../toolchain-1.9.2.7-rtn-r3458/src/defconfig ../../toolchain-1.9.2.7-rtn-r3458/src/.config
sed -i 's,/home/lly/Wl500/rt-n/linux/linux-2.6/,/home/guntram/Soft/openwrt/rtn/toolchain/../../firmware-1.9.2.7-rtn-r3702/src/linux/linux-2.6,g' ../../toolchain-1.9.2.7-rtn-r3458/src/.config
Fixme: apply uClibc patches for ld.so*
cp -f ./999-ld-native-search-path.patch  ../../toolchain-1.9.2.7-rtn-r3458/src/toolchain/binutils/patches/2.21.1/
cp -f ./*-uclibc-*.patch  ../../toolchain-1.9.2.7-rtn-r3458/src/toolchain/uClibc/patches/0.9.32/
cp: Aufruf von stat für „./*-uclibc-*.patch“ nicht möglich: Datei oder Verzeichnis nicht gefunden
make[1]: *** [.toolchain_compiled] Fehler 1
make[1]: Verlasse Verzeichnis '/home/guntram/Soft/openwrt/rtn/toolchain'
make: *** [.toolchain_installed] Fehler 2

Do I have to get the missing patch somewhere manually?

[!gm]

Alexander changed the installation-routine in r384.

http://code.google.com/p/wl500g-repo/source/list

You may checkout latest trunk as he fixed some issues yesterday.
Or an revision < 384 and use a precompiled toolchain, as I did.