[libbluray-devel] Found a JRE compiled for Android (ARM)

[Shaya Potter]

I also don't know if however you are setting up the env variable, actually
carries over to kodi (or what the 1 or a 0 would mean for setenv() )

but this PR might be a guide for a useful way to make it more generic
https://github.com/xbmc/xbmc/pull/4076

On Thu, Jan 21, 2021 at 12:11 AM Shaya Potter <spotter at gmail.com> wrote:

> I can't speak to any specifics, but there are some obvious issues that
> would prevent libbluray from loading it.
>
> libbluray searches for the the java root dir in a number of places
> (including the JAVA_HOME env)
>
> from the root dir, it searches in a number of subdir's for libjvm.so
>
> the dirs it searches are
>
>     static const char * const jvm_dir[]  = {"jre/lib/" JAVA_ARCH "/server",                                            "lib/server",                                            "lib/client",
>
>
> it turns out that none of those dirs are where this jvm stores libjvm.so.
> it stores it in "lib/arm/client".
>
> hence it can't find it.  a simple experiment would be for you to build
> your own libbluray and add "lib/arm/client" or perhaps even "lib" JAVA_ARCH
> "/client" (again, unsure) and see if that improves the situation.
>
> with that said, I have some skepticism that it can work when loaded into
> the shared data partition as google has gone through efforts to lock down
> executable code being stored there, with that said, I don't know how that
> impact dlopen and the like and might only impact Android Q users.
>
> but again, this is just low hanging fruit issues, dont really know what it
> would be.  (with that said, I think the holy grail for many people would be
> to have kodi be able to use java on android).
>
> The other issue is that these devs don't provide any source code for the
> jvm that they built.  as it's under the GPL and they aren't providing
> sources they built it from, they are arguably in violation of the license.
> that's going to prevent it from anyone putting significant effort into it.
>
>
> On Sat, Jan 2, 2021 at 4:35 AM Vitor Dall'Acqua <veggav at gmail.com> wrote:
>
>> Just wanted to share this with you,
>>
>> Someone made a JRE for Termux that runs on Android devices.
>> https://github.com/MasterDevX/Termux-Java
>>
>> I've tried to add this to Kodi and setenv
>>   setenv("JAVA_HOME", "/storage/emulated/0/JAVA/", 1);
>>
>> added the binaries and the *.jar files
>>
>> Libbluray still won't see it.
>>
>> DEBUG <general>: CBlurayCallback::Logger - bdj.c:746: BD-J check: Failed
>> to load JVM library
>>
>> I have little to no experience with Android and how paths are set but if
>> it's just a matter of figuring out how to set it, it would be really nice
>> to have.
>>
>> Hope someone shares the sentiment and feels like having a look at it.
>>
>> Regards
>> Vitor
>>
>> _______________________________________________
>> libbluray-devel mailing list
>> libbluray-devel at videolan.org
>> https://mailman.videolan.org/listinfo/libbluray-devel
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/libbluray-devel/attachments/20210121/043eccba/attachment-0001.html>