Android (Java) application with new/modified WebRTC libraries in APK

[Werner Dittmann]

In one of our projects we do some experiments with WebRTC (network code mainly). Thus we 

modify/test some code inside WebRTC itself. We tested these modifications already with the Linux

example app.

The Android example app does not contain the full WeRTC lib but only a small libjingle*.so and then

Android seems to magically link the platform's WebRTC libraries to the example app/libjingle, at least this

is my understanding how it works :-) 

Because we change some code inside WebRTC an Android test app would need the new/modified

WebRTC lib linked in, not the platform's libs. IMHO this is somewhat similar to this discussion:

https://groups.google.com/d/msgid/discuss-webrtc/e03d4d29-214b-4707-a342-217afc0adb7b%40googlegroups.com

The main difference is that we build a normal Android app using Java or Kotlin and would like to

use our modified WebRTC lib and have them bundled with the app's APK. I know that would be a

large APK, however we my find ways to reduce the overall size later if we can manage to link

our modified WebRTC lib

Is this even possible? If yes - any ideas how to modify the build scrips (gn) to accommodate this?

Searching the discussion here and asking the mighty Google ;-) did not reveal much information.

Werner

[Sami Kalliomäki]

We don't use any "platform WebRTC libraries". All WebRTC native code necessary is contained in libjingle_peerconnection.so.

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[Werner Dittmann]

Hi Sami, thanks for the fast feedback.

Seems that we need to review/crosscheck our build script once more :-) .

We looked at the sizes of the libs and found that the Android libs are much smaller than the Linux (x86) libs, also

the example applications have a big difference in size - thus we assumed that libjingle uses some platform libs or

functions. The differences in sizes are really big.

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