Compile SqueezeOS for "Baby" - missing babydsp.so (BB/Poky recipe - Private_SVN)

[rbudde]

> I've managed to workaround the missing private babydsp sources to
> successfully build the radio firmware.

Let me start by saying you're crazy.

What's the motivation to build your own firmware? You're obviously aware
of the missing features (AAC/WMA)...

--

Michael

[rbudde]

Compile SqueezeOS for "Baby" - missing babydsp.so (BB/Poky recipe - Private_SVN)

Hello Developers,

coming from http://forums.slimdevices.com/showth...ages-available I am trying to compile SqueezeOS for "baby" (Squeezebox Radio). I checked out http://svn.slimdevices.com/repos/jive/7.8/trunk/ and follwed the instructions at http://wiki.slimdevices.com/index.ph...d_Instructions as well as http://wiki.slimdevices.com/index.ph...ezeos_Building (using the scripts in the parabuild subdirectory).

I selected MACHINE=baby to build for the Squeezebox Radio and figured out some minor problems like the missing fakeroot 1.9.4. I am now stuck at the stage were squeezeplay is compiled. At some point it looks like bitbake tries to "bake" squeezeos-dsp-src_svn.bb, which can not succeed as I did not set "SQUEEZEOS_PRIVATE_SVN".

I would be very thankful for some advice! (or an baby-UBI-firmware-image)

Best regards
Robert

[ralphy]

I've managed to workaround the missing private babydsp sources to successfully build the radio firmware.

Copy /usr/lib/alsa-lib/libasound_module_pcm_babydsp.so from a radio to your poky build system and rename it using scp.

$ scp -p [email protected]:/usr/lib/alsa-lib/libasound_module_pcm_babydsp.so libasound_module_pcm_babydsp.so.0.0.0

libasound_module_pcm_babydsp.so      100%   33KB  33.5KB/s   00:00

Create a tar file which contains the renamed babydsp module in the correct folder structure. I included the firmware version of the radio where the shared library came from in the filename.

$ tar -tzvf babydsp-7.7.3r16676.tar.gz

drwxr-xr-x ralphy/ralphy     0 2020-02-05 16:31 squeezeos_dsp/
drwxr-xr-x ralphy/ralphy     0 2020-02-05 16:10 squeezeos_dsp/.libs/
-rw-r--r-- ralphy/ralphy 34271 1969-12-31 19:00 squeezeos_dsp/.libs/libasound_module_pcm_babydsp.so.0.0.0

Create an md5 checksum file

md5sum babydsp-7.7.3r16676.tar.gz > babydsp-7.7.3r16676.tar.gz.md5

Put both files in the poky/sources folder

Update squeezeos-dsp-src_svn.bb. We only want bitbake to perform the install step. File attached.

I used a url to a local apache server running on my build VM in the SRC_URI to host the files, but bitbake won't try to download them as long as the tar and md5 files are already in poky/sources.

DESCRIPTION = "SqueezeOS DSP - Private code"
LICENSE = "Confidential"

PV = "${DISTRO_VERSION}+svnr${SRCREV}"
PR = "r3"

PROVIDES = "squeezeos-dsp"

DEPENDS += "alsa-lib"

# no thumb here thanks!
ARM_INSTRUCTION_SET = "arm"

# SRC_URI="${SQUEEZEOS_PRIVATE_SVN};module=squeezeos_dsp"
SRC_URI="http://poky/babydsp-7.7.3r16676.tar.gz;module=squeezeos_dsp"

S = "${WORKDIR}/squeezeos_dsp"

#inherit autotools

#do_configure_prepend() {
#	cd ${S}/openmax
#	tar -xzf openmax-arm-98665.tgz
#	cd ${S}
#}

do_install() {
	mkdir -p ${D}/${libdir}/alsa-lib
	pwd
	install -m 0644 .libs/libasound_module_pcm_babydsp.so.0.0.0 ${D}/${libdir}/alsa-lib/libasound_module_pcm_babydsp.so
}

PACKAGES = "squeezeos-dsp squeezeos-dsp-dbg"

FILES_squeezeos-dsp = "${libdir}/alsa-lib"
FILES_squeezeos-dsp-dbg = "${libdir}/alsa-lib/.debug"

Set MACHINE ?= "baby" in poky/build/conf/local.conf

Setup your bitbake environment variables and run bitbake.

[mrw]

What's the motivation to build your own firmware? You're obviously aware
of the missing features (AAC/WMA)...

Perhaps, to quote (or misquote) George Mallory, "Because it's there".

In my case, motivation is/was to explore ways to ameliorate a "Bass amp problem".

[ralphy]

> I've managed to workaround the missing private babydsp sources to
> successfully build the radio firmware.

Let me start by saying you're crazy.

What's the motivation to build your own firmware? You're obviously aware
of the missing features (AAC/WMA)...

--

Michael

LOL. That's twice now you've called me crazy for attempting this!

I already have squeezelite running on the radio so the missing decoders, spotify and other private music services support don't matter.