Crash when using G.729 codec about imsdroid HOT 5 OPEN

Tried with Doubango r1246 and imsdroid 580 on GT-I9100/Android 4.1.2 calling 
iPhone6 but cannot reproduce the crash.
Please try with my debug apk (https://ns313841.ovh.net/IMSDroid_g729.apk) and 
tell us if you have same crash.

Tried with the provided debug apk using two GT-I9100/Android 4.1.2 devices 
calling each other using G.729 codec (we don't have an iPhone 6 yet). On both 
devices we disabled the "Enable STUN for ICE", "Enable AEC", "VAD" and "Noise 
reduction" options.

After about 50 mintues we got the same crash on one of the phones(logs attached 
are not taken from the start of the call because the AudioHardwareYamaha 
generates logs continously and filled the Logcat buffer).

Please find also attached logs of the same crash occurred after about 10 
minutes under the same conditions on a GT-I9505/Android 4.4.2 calling a 
GT-I9100/Android 4.1.2.

From the logs we see that before the app crash we get an error from the 
AudioRecord also some other native services die. It looks like a memory leak 
issue and testing long duration calls I noticed very few variations in the 
memory usage. The memory usage increase significantly each time we start a new 
call. The IMSDroid application won't free the leaked memory when you close it 
as the service will be running in the background. Use "shell top" to track 
memory usage and report it here.
Do you have the crash for the very first calls (after phone restart) or not?

Here the results of the following test:

- Got the Imsdroid apk provided installed on two GT-I9100 running Android 4.1.2
- Both phones have been rebooted
- After reboot, start Imsdroid and place a call between the two phones using 
G.729 codec.
- After few minutes Imsdroid crashed on one of the phones.

Please find attached the following log files captured using the following 
commands:

Logcat (w/o AudioHardwareYamaha logs): adb logcat -v time | grep --invert-match 
LVVEFS
Memory monitor: adb shell 'while true; do date && top -t -n 1 | grep imsdroid; 
sleep 1; done'