FMOD_ERR_INTERNAL when trying to reload the same sound on android - FMOD Engine

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I’m developing a react native library for my upcoming android app using fmod. So far I’ve been testing it only with files coming from the android_asset folder ( file:///android_asset/sound.ogg ) and everything worked decently. Today I started integrating firebase to download some sounds from my cdn and store them in the app’s document folder at runtime (file:///data/user/0/com.dominickv.ambientify/files/sounds/downloaded/sound.ogg) … The first time I load the sound everything works, but when I reload the sound after it ends (I do this to prevent deleting the channel since I need to always reuse at least 15 channels, for functionality reasons) the app crashes without giving me any hints as to what went wrong. It only tells me something went wrong and I should contact support…
The repository for my code is public if you want to look at the code (disclaimer: it’s ugly and I’m not a professional c++ programmer, the link points to the line where the error shows up). This is the logs of the crash:
Type	Time	PID	Tag	Message
	14:05:09.416	3618	AmbientifySoundEngine	Loading channel 0
	14:05:09.416	3618	fmod	SystemI::createSoundInternal             : Create name='file:///data/user/0/com.dominickv.ambientify/files/sounds/downloaded/Crow_01.ogg', mode=0x00000082
	14:05:09.417	3618	fmod	SystemI::createSoundInternal             : Stream: name='(null)', format=2, channels=2, frequency=44100, lengthbytes=25357, lengthpcm=132936, pcmblocksize=0, loopstart=0, loopend=0, mode=0x00000000, channelmask=0x00000000, channelorder=0, peakvolume=0.000000.
	14:05:09.420	3618	fmod	Thread::initThread                       : Init FMOD file thread. Affinity: 0x4000000000000003, Priority: 0xFFFF7FFC, Stack Size: 65536, Semaphore: No, Sleep Time: 10, Looping: Yes.
	14:05:09.421	3618	AmbientifySoundEngine	Preparing channel 0
	14:05:09.466	3618	ReactNativeJS	'Rendered channel: ', 0
	14:05:10.836	3618	ReactNativeJS	Preview soundInstance unloaded succesfully.
	14:05:15.305	3618	ReactNativeJS	'Rendered channel: ', 0
	14:05:16.245	3618	unknown:ReactModalHost	Creating new dialog from context: com.dominickv.ambientify.MainActivity@e4a1084@239734916
	14:05:16.269	1460	SurfaceFlinger	duplicate layer name: changing com.dominickv.ambientify/com.dominickv.ambientify.MainActivity to com.dominickv.ambientify/com.dominickv.ambientify.MainActivity#1
	14:05:16.280	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 10108928
	14:05:16.287	1446	chatty	uid=1000(system) HwBinder:1446_2 identical 1 line
	14:05:16.299	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 10108928
	14:05:16.311	3618	unknown:ReactModalHost	Updating existing dialog with context: com.dominickv.ambientify.MainActivity@e4a1084@239734916
	14:05:16.325	3618	EGL_emulation	eglMakeCurrent: 0xdb6055c0: ver 3 1 (tinfo 0xc8bd2860)
	14:05:16.347	3618	chatty	uid=10059(com.dominickv.ambientify) RenderThread identical 2 lines
	14:05:16.352	3618	EGL_emulation	eglMakeCurrent: 0xdb6055c0: ver 3 1 (tinfo 0xc8bd2860)
	14:05:16.389	3618	ReactNativeJS	'Rendered channel: ', 0
	14:05:17.251	3618	EGL_emulation	eglMakeCurrent: 0xdb6055c0: ver 3 1 (tinfo 0xc8bd2860)
	14:05:17.873	3618	ReactNativeJS	'Rendered channel: ', 0
	14:05:18.337	3618	EGL_emulation	eglMakeCurrent: 0xdb6055c0: ver 3 1 (tinfo 0xc8bd2860)
	14:05:18.603	1711	zygote	Background concurrent copying GC freed 65221(3MB) AllocSpace objects, 21(868KB) LOS objects, 42% free, 6MB/10MB, paused 701us total 110.164ms
	14:05:18.622	3618		PlayerBase::~PlayerBase()
	14:05:20.404	3618	ReactNativeJS	'Rendered channel: ', 0
	14:05:20.734	3618	EGL_emulation	eglMakeCurrent: 0xdb6055c0: ver 3 1 (tinfo 0xc8bd2860)
	14:05:23.392	3618	AmbientifySoundEngine	_ch ended with id: 0
	14:05:23.392	3618	AmbientifySoundEngine	Loading channel 0
	14:05:23.392	3618	fmod	SystemI::createSoundInternal             : Create name='file:///data/user/0/com.dominickv.ambientify/files/sounds/downloaded/Crow_01.ogg', mode=0x00000081
	14:05:23.392	3618	fmod	FMOD_JNI_GetEnv                          : Native threads must be attached to the Java virtual machine, please call JavaVM::AttachCurrentThread before invocation.
	14:05:23.392	3618	AmbientifySoundEngine	EngineChannel.cpp(41): FMOD error 28 - An error occurred that wasn't supposed to.  Contact support.
	14:05:23.395	3618	libc	/buildbot/src/android/ndk-release-r21/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:72: abort_message: assertion "terminating with uncaught exception of type ambientify::commons::ASoundEngineException: EngineChannel.cpp(line 41): FMOD error 28 - An error occurred that wasn't supposed to.  Contact support." failed
	14:05:23.396	3618	libc	Fatal signal 6 (SIGABRT), code -6 in tid 3718 (mqt_js), pid 3618 (ickv.ambientify)
	14:05:23.459	3759	crash_dump32	obtaining output fd from tombstoned, type: kDebuggerdTombstone
	14:05:23.464	1593	/system/bin/tombstoned	received crash request for pid 3618
	14:05:23.466	3759	crash_dump32	performing dump of process 3618 (target tid = 3718)
	14:05:23.466	3759	DEBUG	*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
	14:05:23.466	3759	DEBUG	Build fingerprint: 'Android/sdk_phone_x86/generic_x86:8.1.0/OSM1.180201.023/4931629:userdebug/test-keys'
	14:05:23.466	3759	DEBUG	Revision: '0'
	14:05:23.466	3759	DEBUG	ABI: 'x86'
	14:05:23.467	3759	DEBUG	pid: 3618, tid: 3718, name: mqt_js  >>> com.dominickv.ambientify <<<
	14:05:23.467	3759	DEBUG	signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
	14:05:23.468	3759	DEBUG	Abort message: '/buildbot/src/android/ndk-release-r21/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:72: abort_message: assertion "terminating with uncaught exception of type ambientify::commons::ASoundEngineException: EngineChannel.cpp(line 41): FMOD error 28 - An error occurred that wasn't supposed to.  Contact support." failed'
	14:05:23.468	3759	DEBUG	    eax 00000000  ebx 00000e22  ecx 00000e86  edx 00000006
	14:05:23.468	3759	DEBUG	    esi e4de6638  edi 00000e22
	14:05:23.468	3759	DEBUG	    xcs 00000023  xds 0000002b  xes 0000002b  xfs 0000006b  xss 0000002b
	14:05:23.468	3759	DEBUG	    eip e7d4dae5  ebp 00000e86  esp b6c01b60  flags 00000286
	14:05:23.477	3759	DEBUG	
backtrace:
	14:05:23.477	3759	DEBUG	    #00 pc 00000ae5  [vdso:e7d4d000] (__kernel_vsyscall+5)
	14:05:23.477	3759	DEBUG	    #01 pc 0001edf8  /system/lib/libc.so (syscall+40)
	14:05:23.477	3759	DEBUG	    #02 pc 0001f073  /system/lib/libc.so (abort+115)
	14:05:23.477	3759	DEBUG	    #03 pc 0001f528  /system/lib/libc.so (__assert2+56)
	14:05:23.477	3759	DEBUG	    #04 pc 00099d94  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libc++_shared.so
	14:05:23.477	3759	DEBUG	    #05 pc 00099fee  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libc++_shared.so
	14:05:23.477	3759	DEBUG	    #06 pc 000b11a9  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libc++_shared.so
	14:05:23.477	3759	DEBUG	    #07 pc 000b05ae  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libc++_shared.so
	14:05:23.477	3759	DEBUG	    #08 pc 000b0503  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libc++_shared.so (__cxa_throw+115)
	14:05:23.477	3759	DEBUG	    #09 pc 00044e80  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ERRCHECK_fn(FMOD_RESULT, char const*, int)+960)
	14:05:23.478	3759	DEBUG	    #10 pc 0008c489  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ambientify::EngineChannel::load(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char>> const*)+777)
	14:05:23.478	3759	DEBUG	    #11 pc 0008d670  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ambientify::EngineChannel::load(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char>> const*, bool)+80)
	14:05:23.478	3759	DEBUG	    #12 pc 0008fdb5  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ambientify::EngineChannel::onChannelEndCallback()+133)
	14:05:23.478	3759	DEBUG	    #13 pc 0007d1bf  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ambientify::SoundEngine::channelCallback(FMOD_CHANNELCONTROL*, FMOD_CHANNELCONTROL_TYPE, FMOD_CHANNELCONTROL_CALLBACK_TYPE, void*, void*)+559)
	14:05:23.478	3759	DEBUG	    #14 pc 00089ec0  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000)
	14:05:23.478	3759	DEBUG	    #15 pc 0008fc74  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000)
	14:05:23.478	3759	DEBUG	    #16 pc 000c4709  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000)
	14:05:23.478	3759	DEBUG	    #17 pc 000c4047  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000)
	14:05:23.478	3759	DEBUG	    #18 pc 000aac9e  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000)
	14:05:23.478	3759	DEBUG	    #19 pc 00159e0f  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libfmodL.so (offset 0x7e000) (FMOD::System::update()+71)
	14:05:23.478	3759	DEBUG	    #20 pc 0007dde1  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (ambientify::SoundEngine::update()+97)
	14:05:23.478	3759	DEBUG	    #21 pc 000856db  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so
	14:05:23.479	3759	DEBUG	    #22 pc 0008557c  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so
	14:05:23.479	3759	DEBUG	    #23 pc 00084bbf  /data/app/com.dominickv.ambientify-2cZgIeXEMj1F-WfyMHA-JQ==/lib/x86/libambientifySoundEngine.so (_ZNSt6__ndk114__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEMN10ambientify11SoundEngineEFvvEPS8_EEEEEPvSD_+207)
	14:05:23.479	3759	DEBUG	    #24 pc 00071445  /system/lib/libc.so (__pthread_start(void*)+53)
	14:05:23.479	3759	DEBUG	    #25 pc 000205db  /system/lib/libc.so (__start_thread+75)
	14:05:23.479	3759	DEBUG	    #26 pc 0001ec16  /system/lib/libc.so (__bionic_clone+70)
	14:05:23.951	1593	/system/bin/tombstoned	Tombstone written to: /data/tombstones/tombstone_00
	14:05:23.954	1711	BootReceiver	Copying /data/tombstones/tombstone_00 to DropBox (SYSTEM_TOMBSTONE)
	14:05:23.958	1711	ActivityManager	  Force finishing activity com.dominickv.ambientify/.MainActivity
	14:05:23.966	1447	hwcomposer	hw_composer sent 42 syncs in 103s
	14:05:23.968	1711	ActivityManager	Showing crash dialog for package com.dominickv.ambientify u0
	14:05:24.170	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 2801664
	14:05:24.250	1711	zygote	android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
	14:05:24.250	1711	OpenGLRenderer	Initialized EGL, version 1.4
	14:05:24.250	1711	OpenGLRenderer	Swap behavior 1
	14:05:24.250	1711	OpenGLRenderer	Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
	14:05:24.250	1711	OpenGLRenderer	Swap behavior 0
	14:05:24.270	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 2801664
	14:05:24.270	1711	EGL_emulation	eglCreateContext: 0xd8ce1580: maj 3 min 1 rcv 4
	14:05:24.320	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 2801664
	14:05:24.330	1711	EGL_emulation	eglMakeCurrent: 0xd8ce1580: ver 3 1 (tinfo 0xc6f7a170)
	14:05:24.350	1711	eglCodecCommon	glUtilsParamSize: unknow param 0x000082da
	14:05:24.350	1711	eglCodecCommon	glUtilsParamSize: unknow param 0x000082da
	14:05:24.370	1711	ConnectivityService	ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ TRACK_DEFAULT id=12, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ], android.os.BinderProxy@ccf4d74)
	14:05:24.380	1711	ConnectivityService	releasing NetworkRequest [ TRACK_DEFAULT id=12, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] (release request)
	14:05:24.410	1711	WindowManager	WIN DEATH: Window{2c37367 u0 com.dominickv.ambientify/com.dominickv.ambientify.MainActivity}
	14:05:24.440	1711	ActivityManager	Process com.dominickv.ambientify (pid 3618) has died: fore TOP 
	14:05:24.440	1711	ActivityManager	Scheduling restart of crashed service com.dominickv.ambientify/app.notifee.core.ForegroundService in 1000ms
	14:05:24.450	1711	zygote	kill(-3618, 9) failed: No such process
	14:05:24.450	1711	WindowManager	WIN DEATH: Window{50c1323 u0 com.dominickv.ambientify/com.dominickv.ambientify.MainActivity}
	14:05:24.500	1711	ConnectivityService	ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ TRACK_DEFAULT id=13, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ], android.os.BinderProxy@4e2a312)
	14:05:24.500	1711	ConnectivityService	releasing NetworkRequest [ TRACK_DEFAULT id=13, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] (release request)
	14:05:24.600	1576	Zygote	Process 3618 exited due to signal (6)
	14:05:24.850	1711	ActivityManager	setHasOverlayUi called on unknown pid: 3618
	14:05:24.860	1711	zygote	kill(-3618, 9) failed: No such process
	14:05:24.860	1711	zygote	Successfully killed process cgroup uid 10059 pid 3618 in 41ms
	14:05:24.960	1711	EGL_emulation	eglMakeCurrent: 0xd8ce1580: ver 3 1 (tinfo 0xc6f7a170)
	14:05:24.120	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 10108928
	14:05:24.125	1446	chatty	uid=1000(system) HwBinder:1446_2 identical 1 line
	14:05:24.128	1446	gralloc_ranchu	gralloc_alloc: Creating ashmem region of size 10108928
	14:05:24.187	2355	EGL_emulation	eglMakeCurrent: 0xdb6042a0: ver 3 1 (tinfo 0xdb603550)
	14:05:24.215	1711	Looper	Dispatch took 162ms on android.ui, h=Handler (android.view.Choreographer$FrameHandler) {41b1ae3} cb=android.view.Choreographer$FrameDisplayEventReceiver@4dcce0 msg=0
	14:05:24.227	1856	EGL_emulation	eglMakeCurrent: 0xca16e9e0: ver 3 1 (tinfo 0xca1fb890)
	14:05:24.468	1856	chatty	uid=10024(com.android.systemui) RenderThread identical 21 lines
	14:05:24.479	1856	EGL_emulation	eglMakeCurrent: 0xca16e9e0: ver 3 1 (tinfo 0xca1fb890)
	14:05:24.652	2355	OpenGLRenderer	Incorrectly called buildLayer on View: ShortcutAndWidgetContainer, destroying layer...
	14:05:27.900	1711	TaskPersister	File error accessing recents directory (directory doesn't exist?).
	14:05:27.121	1439	audio_hw_generic	Not supplying enough data to HAL, expected position 10938437 , only wrote 8945280
I really, really don’t know why it’s crashing, I don’t expect anyone to read the code and understand everything but after many trials I’m pretty sure the only variable is the sound location. The same sound, same code, same emulator, same android version, same build of everything, it only crashes when trying to reload the same sound coming from the downloaded folder instead of the assets one.

Any help would be much appreciated… I was getting so close to shipping my app…

Tombstone attached below

tombstone_00.txt (487.1 KB)
              Nothing obvious is jumping out at me from the code you have shared. I have a few questions:
What version of FMOD are you using?
Do non-streaming sounds have the same problem?
Do both looping and non-looping sounds have this same problem?
I just downloaded the latest 0x00020209 2.02
Yes, it doesn’t matter the mode, it happens with compressed, sample and stream.
If by looping you mean the loop mode then if it is set to FMOD_LOOP_NORMAL it doesn’t crash since it never has to reload the sound.
              Thank you for the additional information. I have not been able to reproduce this issue with sounds loaded from the Downloads folder.

FMOD_ERR_INTERNAL is usually accompanied by a log. To see this log however you need to use the logging libs (libfmodL.so instead of libfmod.so) and call Debug_Initialize(FMOD_DEBUG_LEVEL_LOG) at the start of your application.

Can you please try getting that setup and share the log after this crash?
              Just to be sure, what i meant by “downloaded” folder is this folder I create after downloading a sound:

file:///data/user/0/com.my.app/files/sounds/downloaded/sound.ogg, not the Downloads folder in the storage.
attached the logs from fmod copied from logcat. If you meant that a log file should’ve been written I don’t know where it is and there is no mention of it… I tried using FMOD_DEBUG_MODE_FILE, but I couldn’t figure out what to put in the filename argument (I couldn’t find any additional info on the docs about it and I tried both a path on my machine and on the emulator and crashed with “file not found”)

I called
    result = FMOD::Debug_Initialize(
                                    FMOD_DEBUG_LEVEL_LOG |
                                    FMOD_DEBUG_TYPE_MEMORY |
                                    FMOD_DEBUG_TYPE_FILE |
                                    FMOD_DEBUG_TYPE_CODEC |
                                    FMOD_DEBUG_TYPE_TRACE |
                                    FMOD_DEBUG_DISPLAY_TIMESTAMPS |
                                    FMOD_DEBUG_DISPLAY_LINENUMBERS |
                                    FMOD_DEBUG_DISPLAY_THREAD  ,FMOD_DEBUG_MODE_TTY,  0, 0);
fmodlog.txt (259.8 KB)
              Thank you for sending over the log, I can see the accompanying message for this error is:
TID 3277 : 178910 ms +1606 : [LOG] SystemI::createSoundInternal : Create name='file:///data/user/0/com.dominickv.ambientify/files/sounds/downloaded/animals%3Ebirds%3ECrow_01.ogg', mode=0x00000081
TID 3277 : 178910 ms +0    : [ERR] FMOD_JNI_GetEnv : Native threads must be attached to the Java virtual machine, please call JavaVM::AttachCurrentThread before invocation.
Note the thread id is different to the one previously used for createSound:
TID 3232 : 166871 ms +0    : [LOG] SystemI::createSoundInternal : Stream: name='(null)', format=2, channels=2, frequency=44100, lengthbytes=25357, lengthpcm=132936, pcmblocksize=0, loopstart=0, loopend=0, mode=0x00000000, channelmask=0x00000000, channelorder=0, peakvolume=0.000000.
I see you are loading sounds in a promise, which internally is creating a new thread and means you would need to call JavaVM::AttachCurrentThread. It should just be a matter of calling AttachCurrentThread inside your “createChannelAsync” lambda and passing in the java vm your are holding in cpp-adapter.cpp.
              Oh, wow, thank you so so so much for your help. It worked — technically, I had to call AttachCurrentThread in my update method, which is also on another thread, not on my async lambdas. But thank you again, and I apologize for my bad code.
Although I still have no idea why this only happens with files outside the android assets folder since, as I said, everything worked with those, and I never had this happen.
              Thank you for confirming that is working now. I am seeing a difference between the implementations when loading from  “file:///android_asset/” and “file:///” by itself that might explain why this is happening. This is probably a bug- I have passed this onto the dev team to investigate in more detail. Thank you for bringing this to our attention.

EDIT: After discussion with the dev team they have pointed out that this is expected behaviour, and it is a requirement that all calls into FMOD from a native thread need to be attached using JavaVM::AttachCurrentThread.