Help! Could not get microphone data on android platform with GStreamer

[julian]

i have the same problem, my pipeline is "openslessrc ! decodebin !
audioconvert ! audioresample ! audiobuffersplit alignment-threshold=20
strict-buffer-size=true ! mulawenc ! rtppcmupay ! udpsink host=192.1.1.1
port=50002 bind-address=" + ip + "  "

i have tired several conbinations of graddle ndk and gstreamer, the one used
here is:
5.6.4 android plugin 3.6.3, 
ndk/21.3.6528147, 
gstreamer-1.0-android-universal-1.17, 
minSdkVersion 22, targetSdkVersion 28



W/libOpenSLES: Conversion from OpenSL ES positional channel mask 0x4 to
Android mask 0 loses channels
I/libOpenSLES: Emulating old channel mask behavior (ignoring positional mask
0x4, using default mask 0x10 based on channel count of 1)
E/AudioRecord: AudioFlinger could not create record track, status: -1
E/libOpenSLES: android_audioRecorder_realize(0x78982c8000) error creating
AudioRecord object; status -1
W/libOpenSLES: Leaving Object::Realize (SL_RESULT_CONTENT_UNSUPPORTED)
E/GStreamer+opensles_ringbuffer: 0:00:01.534980729 0x7892aea770
../sys/opensles/openslesringbuffer.c:176:_opensles_recorder_acquire:<openslesringbuffer1>
recorder.Realize failed(0x00000009)
W/GStreamer+basesrc: 0:00:01.535117187 0x7892aea770
../libs/gst/base/gstbasesrc.c:3070:gst_base_src_loop:<autoaudiosrc0-actual-src-opensle>
error: Internal data stream error.
    0:00:01.535154166 0x7892aea770
../libs/gst/base/gstbasesrc.c:3070:gst_base_src_loop:<autoaudiosrc0-actual-src-opensle>
error: streaming stopped, reason not-negotiated (-4)
W/GStreamer+typefind: 0:00:01.535521875 0x7892aea770
../plugins/elements/gsttypefindelement.c:988:gst_type_find_element_chain_do_typefinding:<typefind>
error: Stream doesn't contain enough data.
    0:00:01.535606771 0x7892aea770
../plugins/elements/gsttypefindelement.c:988:gst_type_find_element_chain_do_typefinding:<typefind>
error: Can't typefind stream
E/libOpenSLES: Object::Destroy(0x78a9385400) for engine ignored; 1 total
active objects
    Object::Destroy(0x78a9385400) for engine ignored; active object ID 2 at
0x78982c8000



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