Air Player on Raspberry Pi 4

[mar1ram]

Can Air Player Desktop run a Raspberry Pi 4? There doesn't seem to be any issue with system requirements (Debian 32 bit, OpenGL 2.1).

I've replaced "arm64" by "armhf" in Setup.sh and got the libraries installed. But neither Bootloader nor AirPlayer would launch. I get the error "cannot execute binary file: Exec format error". Could it be that 32 bit is not actually supported?

I haven't tried flashing the SD card with the Air Player for RSPI image (would that even work on RSPI 4, system requirements only mention RSPI 2 and 3?), but I need to stick to the OS version I'm using.

On a related note, any plans to package a 32 bit version of Air Manager? Would be nice to run it on a Raspberry Pi too.

[Keith Baxter]

Can Air Player Desktop run a Raspberry Pi 4? There doesn't seem to be any issue with system requirements (Debian 32 bit, OpenGL 2.1).

I've replaced "arm64" by "armhf" in Setup.sh and got the libraries installed. But neither Bootloader or AirPlayer would launch. I get the error "cannot execute binary file: Exec format error". Could it be that 32 bit is not actually supported?

I haven't tried flashing the SD card with the Air Player for RSPI image (would that even work on RSPI 4, system requirements only mention RSPI 2 and 3?), but I need to stick to the OS version I'm using.

On a related note, any plans to package a 32 bit version of Air Manager? Would be nice to run it on a Raspberry Pi too.

Hi, welcome to the forum,

This thread will answer most of your questions.

viewtopic.php?f=32&t=2112

Keith

[mar1ram]

Thanks Keith, but I think everyone on that thread were flashing the image on an SD card. I'm trying to see if I can make the Air Player for Desktop (Linux) version work on my Raspberry Pi 4 instead.

-Marwan

[Keith Baxter]

Hi Marwin,

That @Corjan would only be able to help us with but my feeling is that the Pi is Too small. A RPi 3 battles to run some of the bigger instruments.
Interesting thought though.

Keith

[mar1ram]

@Corjan, any ideas on this one?

In a nutshell, the questions are:
- Is Air Player Desktop really compatible with Debian 32 bit systems? Binary file is non-executable on my Raspberry Pi 4.
- Can Air Manager Desktop be made compatible with 32 bit systems?

Thanks,
Marwan

[Corjan]

Hi,


Oops, looks like there was a fault on the wiki with the release notes.
Air Player for Linux is only 64 bits.

I think I read somewhere though that newer Operating systems for the Pi are also 64 bit?


Corjan

[mar1ram]

Hi @Corjan ,

Thanks for the reply and good to know Air Player for Linux is only for 64 bit systems.

I was able to install a 64 bit flavor of Ubuntu on my RSPI 4, but the executables seem to have been compiled for an AMD64 architecture, and not ARM64:

Code: Select all

ubuntu@ubuntu:~/Documents/Air Manager 3.7$ ./Bootloader
bash: ./Bootloader: cannot execute binary file: Exec format error

I then installed Bellsoft's Liberica Full JRE 14.0.1+8 ARM 64 bit for Linux, and tried java -jar AirManager.jar, but get the following error:

Code: Select all

ubuntu@ubuntu:~/Documents/Air Manager 3.7$ java -jar ./AirManager.jar 
** (java:13418): WARNING **: 16:17:35.050: AT-SPI: Could not obtain desktop path or name


** (java:13418): WARNING **: 16:17:35.119: atk-bridge: get_device_events_reply: unknown signature

** (java:13418): WARNING **: 16:17:35.119: atk-bridge: get_device_events_reply: unknown signature

** (java:13418): WARNING **: 16:17:35.119: atk-bridge: GetRegisteredEvents returned message with unknown signature

** (java:13418): WARNING **: 16:17:35.131: AT-SPI: Could not obtain desktop path or name


** (java:13418): WARNING **: 16:17:35.133: AT-SPI: Could not obtain desktop path or name

Exception in Application start method
Exception in Application stop method
java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
	at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.UnsatisfiedLinkError: Unable to load library 'AppBase': Native library (linux-aarch64/libAppBase.so) not found in resource path (./AirManager.jar)
	at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:277)
	at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:403)
	at com.sun.jna.Library$Handler.<init>(Library.java:147)
	at com.sun.jna.Native.loadLibrary(Native.java:502)
	at com.sun.jna.Native.loadLibrary(Native.java:481)
	at com.siminnovations.guientity.EBHandler.<init>(Unknown Source)
	at com.siminnovations.guientity.EntityManager.<clinit>(Unknown Source)
	at com.siminnovations.airmanager.AirManager.start(Unknown Source)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
	at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
	... 1 more
Exception running application com.siminnovations.airmanager.AirManager

I suspect that the .jar was compiled with OpenJDK 8 and not 14, but the problem is that there is no ARM64 version of a full OpenJDK 8 jre or jdk that includes Liberica FX. When I try running the jar with the standard OpenJDK 8 (without FX), I get:

Code: Select all

ubuntu@ubuntu:~/Documents/Air Manager 3.7$ sudo update-alternatives --config java
There are 2 choices for the alternative java (providing /usr/bin/java).

  Selection    Path                                                Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/bellsoft-java14-full-aarch64/bin/java   21400013  auto mode
  1            /usr/lib/jvm/bellsoft-java14-full-aarch64/bin/java   21400013  manual mode
* 2            /usr/lib/jvm/java-8-openjdk-arm64/jre/bin/java       1081      manual mode

Press <enter> to keep the current choice[*], or type selection number: 2
ubuntu@ubuntu:~/Documents/Air Manager 3.7$ java -jar AirManager.jar 
Error: JavaFX runtime components are missing, and are required to run this application

Could you please confirm the exact OpenJDK version Air Manager 3.7 uses? And if it's indeed full OpenJDK 8, do you have any ideas?

Thanks a lot!
Marwan

[Corjan]

Hi,


Oops, yes you are right, it is completely different platform. Weird that this did not cross my mind.

I'm afraid this is not possible then, since big parts of Air Manager is native code, it is not pure java. I also think performance would be bad anyways in desktop Linux.


Corjan

[mar1ram]

Thanks @Corjan. How about Air Player then? Would it be feasible to get an ARM64-compatible version that can run standalone (without flashing the full image)?

[Corjan]

Hi,


You can download the application here:
https://www.siminnovations.com/api3/dow ... n=HOME_USE

Note that this application can only run on a headless Linux version (I think). And there is very little documentation on how to get it going, although it is similar to the regular AMD64 Air Player for Linux.


Corjan