Re: [fluid-dev] Android Support

[Nick Heyworth]

I read http://fluidsynth.sourceforge.net/api/ and basically understand how to set the synthesizer up, but unfortunately I don’t have a clue what to send to fluid_synth_write_s16 if I don’t have a driver. What I actually want to do is load a specific sound font and play some notes. All I know about this audio stuff is how to send MIDI commands, so I guess I’m just missing too much information. Thanks for your time, though.

 

 

Best regards,

 

Nick

 

 

From: Philippe Simons

Sent: Sunday, January 7, 2018 9:09 PM

To: FluidSynth mailing list

Subject: Re: [fluid-dev] Android Support

 

https://github.com/VolcanoMobile/fluidsynth-android

 

this is my fork of Fluidsynth

 

basically, I removed the glib dep and all the drivers, so it's up to you to call fluid_synth_write_s16 to fill a buffer.

it can be a OpenSL buffer, AAudio, or even an AudioTrack

 

you can build it by calling ndk-build from the android directory. it will build the libfluidsynth.so that you can use in your project

 

hope it helps

 

On Sun, Jan 7, 2018 at 8:02 PM, Nick Heyworth <address@hidden> wrote:

If OpenSLES support were basically in place, I could contribute by testing it on Android, and with other Android-related stuff.

I have a lot of experience with C/C++, Java, JNI, Windows, and Android, but unfortunately I'm not very good at setting up builds in a Unix environment. I understand there's some dependency problem with glib that needs to be built first, and that it's complicated and needs cerbero. With Unix it always seems to me that in order to use one tool, I need to build it first, and learn a few others tools first in order to do that ;-)

For the Android app I'm working on, I will need to implement a JNI interface to call fluidsynch from Java, and I'm prepared to share that once it's done. The thing is, I first need to be able to build the fluidsynch .so files for Android, which is where I'm stuck.

So if anyone could integrate the OpenSLES drivers and provide an environment where building just works out of the box, I could probably look after it from there.

I was already briefly in contact with Atsushi, but no solution yet. Maybe one of you guys could poke him?


Best regards,

Nick

-----Original Message----- From: Tom M.
Sent: Sunday, January 7, 2018 7:17 PM
To: Nick Heyworth
Cc: address@hidden
Subject: Re: [fluid-dev] Android Support

Supporting OpenSLES would definitely be a nice feature and I already asked Atsushi to draft another PR at github, but no reaction so far:

https://sourceforge.net/p/fluidsynth/code-git/merge-requests/3/

Overall it looks quite well, however I have no means to actually test this, so any effort I put into integrating and polishing this would be meaningless. Thus I'd welcome anyone submitting a PR on github so this can be discussed and tested.


Tom



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