Snapdroid does not play any audio

[Nuesel]

When playing some audio with Snapdroid 24.0.0 on my Android 10 (LineageOS), my phone keeps being quiet. The audio perfectly plays on my RaspberryPi with Snapclient. I started playing while tracing the log of the app with: adb shell pidof -s de.badaix.snapcast adb logcat --pid=xxxxx The Android app cannot successfully contact the Snapserver, although everything is properly configured (see below). After hitting the play button in Snapdroid, it changes to a stop button but nothing else happens. Does anybody know, what might cause such a problem? Many thanks!

Nuesel

--------- beginning of main 04-10 19:41:10.401 26506 26506 W main : type=1400 audit(0.0:35480): avc: denied { write } for name="tasks" dev="tmpfs" ino=6046 scontext=u:r:zygote:s0 tcontext=u:object_r:device:s0 tclass=file permissive=0 app=de.badaix.snapcast 04-10 19:41:10.401 26506 26506 W main : type=1300 audit(0.0:35480): arch=40000028 syscall=334 per=8 success=no exit=-13 a0=ffffff9c a1=e7043a40 a2=2 a3=0 items=0 ppid=3439 auid=4294967295 uid=0 gid=10145 euid=0 suid=0 fsuid=0 egid=10145 sgid=10145 fsgid=10145 ses=4294967295 tty=(none) exe="/system/bin/app_process32" subj=u:r:zygote:s0 key=(null) app=de.badaix.snapcast 04-10 19:41:10.510 26506 26506 I MultiDex: VM with version 2.1.0 has multidex support 04-10 19:41:10.510 26506 26506 I MultiDex: Installing application 04-10 19:41:10.510 26506 26506 I MultiDex: VM has multidex support, MultiDex support library is disabled. 04-10 19:41:22.789 26506 26506 W ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@2af5461 04-10 19:41:24.588 26506 26506 D GroupList: onCreateView: GroupListFragment{85c511a (f380fd66-9b78-42f0-8ea8-23a0564f7216) id=0x7f09008e} 04-10 19:41:24.593 26506 26506 D Main : Samplerate: 8000 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 8000, buffer: 1408 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 11025 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 11025, buffer: 1920 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 16000 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 16000, buffer: 2816 04-10 19:41:24.597 26506 26506 D Main : Samplerate: 22050 04-10 19:41:24.598 26506 26506 D Main : Samplerate: 22050, buffer: 3840 04-10 19:41:24.598 26506 26506 D Main : Samplerate: 44100 04-10 19:41:24.598 26506 26506 D Main : Samplerate: 44100, buffer: 7552 04-10 19:41:24.598 26506 26506 D Main : Samplerate: 48000 04-10 19:41:24.598 26506 26506 D Main : Samplerate: 48000, buffer: 8192 04-10 19:41:24.599 26506 26506 D Main : Samplerate: 48000 04-10 19:41:24.613 26506 26630 D RC : onConnecting 04-10 19:41:24.694 26506 26626 D mali_winsys: EGLint new_window_surface(egl_winsys_display, void, EGLSurface, EGLConfig, egl_winsys_surface*, egl_color_buffer_format, EGLBoolean) returns 0x3000, [1080x1920]-format:1 04-10 19:41:24.700 26506 26626 W Gralloc3: mapper 3.x is not supported 04-10 19:41:24.702 26506 26630 D TCP : Connecting to 192.168.84.20:1705 04-10 19:41:24.704 26506 26626 E ion : ioctl c0044901 failed with code -1: Invalid argument 04-10 19:41:24.708 26506 26630 D RC : onConnected 04-10 19:41:24.710 26506 26646 D TCP : Sending: {"jsonrpc":"2.0","method":"Server.GetStatus","id":0} 04-10 19:41:24.718 26506 26630 D TCP : Received Message: '{"id":0,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":false,"host":{"arch":"aarch64","ip":"192.168.84.149","mac":"e4:5f:01:87:46:59","name":"Musikbox","os":"Debian GNU/Linux 11 (bullseye)"},"id":"e4:5f:01:87:46:59","lastSeen":{"sec":1649612299,"usec":9058},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.26.0"}},{"config":{"instance":1,"latency":0,"name":"Ubuntu Laptop","volume":{"muted":false,"percent":100}},"connected":false,"host":{"arch":"x86_64","ip":"192.168.84.110","mac":"98:2c:bc:39:06:57","name":"ubuntu","os":"Linux Mint 20.3"},"id":"98:2c:bc:39:06:57","lastSeen":{"sec":1644178156,"usec":25267},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.26.0"}}],"id":"59bc600a-2ea4-c332-e1af-b0aa759174fe","muted":false,"name":"","stream_id":"default"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"george","os":"Ubuntu 20.04.2 LTS"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.26.0"}},"streams":[{"id":"default","properties":{"canControl":false,"canGoNext":false,"canGoPrevious":false,"canPause":false,"canPlay":false,"canSeek":false},"status":"playing","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"40","codec":"flac","name":"default","sampleformat":"48000:16:2"},"raw":"pipe:////tmp/snapfifo?chunk_ms=40&codec=flac&name=default&sampleformat=48000:16:2","scheme":"pipe"}}]}}}' 04-10 19:41:24.719 26506 26630 D RC : Response to: Server.GetStatus 04-10 19:41:24.737 26506 26506 D Main : updateStartStopMenuItem: ic_media_play 04-10 19:41:35.009 26506 26506 D Service : start host: 192.168.84.20, port: 1704 04-10 19:41:35.010 26506 26506 D Service : Running on a non-TV Device 04-10 19:41:35.021 26506 26506 D Service : startProcess 04-10 19:41:35.022 26506 26506 I Service : Configured engine: Auto, active engine: oboe, sampleformat: 48000:16:* 04-10 19:41:35.041 26506 26659 D Main : onPlayerStart 04-10 19:41:35.041 26506 26506 D Main : updateStartStopMenuItem: ic_media_stop

[Nuesel]

Maybe the error Gralloc3: mapper 3.x is not supported is related with this problem: https://forum.qt.io/topic/123071/gralloc3-mapper-3-x-is-not-supported-error-with-chartview

I tried to compile Snapdroid on my own, but I got stuck with error message:

What went wrong: Could not determine the dependencies of task ':Snapcast:stripReleaseDebugSymbols'. Could not create task ':Snapcast:mergeReleaseNativeLibs'. Gradle project cmake.path is /home/nuesel/snapdroid/Snapcast/src/main/cpp/snapcast/CMakeLists.txt but that file doesn't exist

Obviously I am missing a dependency, but what? Is there any howto on building Snapdroid? Thanks for your help!

[badaix]

Did you check out the submodules: git submodule update --init --recursive. Snapcast is compiled with the NDK as native binary and the Snapclient source is linked as submodule. Snapdroid is built by the Github actions CI: https://github.com/badaix/snapdroid/blob/develop/.github/workflows/ubuntu.yml, maybe this file can give more hints on what might went wrong.

[Nuesel]

Thanks for the hint. Checking out the Snapclient submodule solves the compilation issue.

[Nuesel]

The last build on Github works without problems: https://github.com/badaix/snapdroid/actions/runs/1802461396 The same is true for my local build (master/head).

The current version 24.0.0 distributed on F-Droid shows the behavior described above. Maybe a new release would be reasonable? Thanks for your help!