i.MX ProcessorsのトピックRe: I.MX6Q Mic. Recording Problem!!

I.MX6Q Mic. Recording Problem!!

jasonoh — Wed, 17 Oct 2018 09:26:10 GMT

Good Day!

My name is Jason Oh from Korea(South).

I have ported android 7.1.2 successfully to our custom i.mx6q board.

CPU : i.MX6Q

OS : Android 7.1.2 Nougat (N7.1.2_2.0.0, 4.9 kernel)

CODEC : WM8960

When I record microphone, it has recorded normally around 5 seconds, then errors occur.

Could someone help me to fix this problem?

If you need more infomation (schematic, source code, etc..), please tell me!

Thank You!!

*Logcat Output)

0-12 06:52:24.431   277   324 I audio_hw_primary: start_output_stream_primary... -1494403328, device 2
10-12 06:52:24.434   544   644 I MediaFocusControl: AudioFocus requestAudioFocus() from uid/pid 10051/1192 clientId=android.media.AudioManager@b96226f req=1 flags=0x0
10-12 06:52:24.460   277   605 W audio_hw_primary: get_input_buffer_size size = 48, channel_count = 1
10-12 06:52:24.461   277   605 W audio_hw_primary: In channels 1, rate 8000, devices 0x80000004
10-12 06:52:24.461   277   605 W audio_hw_primary: get_input_buffer_size size = 48, channel_count = 1
10-12 06:52:24.461   277   605 W audio_hw_primary: get_input_buffer_size size = 48, channel_count = 1
10-12 06:52:24.462   277 1230 I AudioFlinger: AudioFlinger's thread 0xa56833c0 ready to run
10-12 06:52:24.465   285   285 W AudioRecord: Server adjusted notificationFrames from 1024 to 160 for frameCount 2048
10-12 06:52:24.466   285 1231 I MediaPlayerService: MediaPlayerService::getOMX
10-12 06:52:24.467   285 1231 I OMXClient: MuxOMX ctor
10-12 06:52:24.467   282   297 I OMXMaster: makeComponentInstance(OMX.google.amrnb.encoder) in mediacodec process
10-12 06:52:24.470   285 1231 I MediaCodec: MediaCodec will operate in async mode
10-12 06:52:24.472   282   282 E OMXNodeInstance: setConfig(11a0038:google.amrnb.encoder, ConfigPriority(0x6f800002)) ERROR: Undefined(0x80001001)
10-12 06:52:24.472   285 1231 I ACodec : codec does not support config priority (err -2147483648)
10-12 06:52:24.478   285   285 I MPEG4Writer: limits: 4294967295/0 bytes/us, bit rate: 12200 bps and the estimated moov size 3195 bytes
10-12 06:52:24.479   285 1227 I MediaCodecSource: MediaCodecSource (audio) starting
10-12 06:52:24.709   277   324 W audio_hw_primary: card 0, port 0 device 0x2
10-12 06:52:24.709   277   324 W audio_hw_primary: rate 44100, channel 2 period_size 0xc0
10-12 06:52:24.710   277 1230 W audio_hw_primary: in_set_parameters input_source=1;routing=-2147483644
10-12 06:52:24.711   277 1229 W audio_hw_primary: start_input_stream....
10-12 06:52:24.712   285 1227 I MediaCodecSource: MediaCodecSource (audio) started
10-12 06:52:24.717   277 1229 W audio_hw_primary: card 0, port 0 device 0x4
10-12 06:52:24.717   277 1229 W audio_hw_primary: rate 44100, channel 2 format 0, period_size 0xc0
10-12 06:52:24.726   277   324 W AudioFlinger: write blocked for 295 msecs, 4 delayed writes, thread 0xa6983640
10-12 06:52:24.767   285 1236 I MPEG4Writer: setStartTimestampUs: 9827
10-12 06:52:24.767   285 1236 I MPEG4Writer: Earliest track starting time: 9827
10-12 06:52:27.806   277   324 W audio_hw_primary: do_out_standby... -1494403328
10-12 06:52:43.248   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -1
10-12 06:52:43.248   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -1
10-12 06:52:43.248   277 1229 W audio_hw_primary: ret -1, pcm read error cannot read stream data: I/O error.
10-12 06:52:43.254   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.254   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.254   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.260   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.260   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.260   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.267   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.267   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.267   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.273   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.273   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.273   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.279   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.279   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.279   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.285   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.285   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.285   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.
10-12 06:52:43.291   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_wrapper error -16
10-12 06:52:43.291   277 1229 E audio_hw_primary: get_next_buffer() pcm_read_convert error -16
10-12 06:52:43.291   277 1229 W audio_hw_primary: ret -16, pcm read error cannot prepare channel: Device or resource busy.

Re: I.MX6Q Mic. Recording Problem!!

igorpadykov — Thu, 18 Oct 2018 04:22:25 GMT

Hi Jason

please check Android audio codec porting guide on

How to port new audio codec into Android.doc

Best regards
igor
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Re: I.MX6Q Mic. Recording Problem!!

jasonoh — Sun, 21 Oct 2018 23:46:40 GMT

This is Jason Oh.

I have solved this issue.

1. S/W : Driver update.

2. H/W : 1 point ECO.

If you have any trouble like this, please tell me.

Thanks everyone.

Jason Oh.

Attached file is my solution.

I hope this help you.

Jason Oh.

Re: I.MX6Q Mic. Recording Problem!!

bo_li — Thu, 06 Dec 2018 02:48:52 GMT

Hi Jason,

I meet the same issue.Could you share your solution with me? Thank you.

Re: I.MX6Q Mic. Recording Problem!!

jasonoh — Fri, 07 Dec 2018 00:15:53 GMT

Hi bo.li,

This is Jason.

Please check your e-mail.

I hope it helps.

If you need more information, please let me know.

Thank you.

Jason Oh

Re: I.MX6Q Mic. Recording Problem!!

cxx2050 — Wed, 20 Feb 2019 09:59:34 GMT

Hi, Jason,

I meet the same issue. Could you share your solution with me? Many thanks!

my e-mail: cxx2050@163.com

I run my own recording APP for several days and the error occur.

Re: I.MX6Q Mic. Recording Problem!!

nxf39234 — Sun, 24 Mar 2019 07:59:37 GMT

Hi, Jason:

Could you share your solution with me! Thank you so much!

My e-mail: yuan.liu_2@nxp.com

Yuan Liu

Re: I.MX6Q Mic. Recording Problem!!

huzehua1985 — Tue, 11 Jun 2019 07:45:43 GMT

Hi, Jason,

I meet the same issue. Could you share your solution with me? thank you so much!

my e-mail: huzehua1985@163.com

I run my own recording APP for several days and the error -16 occur.

Re: I.MX6Q Mic. Recording Problem!!

zhouhuafeng — Fri, 23 Aug 2019 06:24:27 GMT

Hi, Jason,

I meet the same issue. Could you share your solution with me? thank you so much!

my e-mail: huafeng121@126.com

Re: I.MX6Q Mic. Recording Problem!!

zhouhuafeng — Fri, 23 Aug 2019 06:38:26 GMT

Hi, lvy:

I meet the same issue. Could you share this issue solution with me? thank you.

my e-mail: huafeng121@126.com

Re: I.MX6Q Mic. Recording Problem!!

WeiWeiBo — Thu, 31 Oct 2019 08:19:56 GMT

Hi Jason

I meet same question, could you share some useful information with me?

My email: victor851219@gmail.com

really thx

Re: I.MX6Q Mic. Recording Problem!!

WeiWeiBo — Thu, 31 Oct 2019 08:22:11 GMT

Hi Ivy

I meet the similar question, could you provide useful information with me

my email: victor851219@gmail.com

really thx

Re: I.MX6Q Mic. Recording Problem!!

ffffff2 — Mon, 09 Dec 2019 13:42:34 GMT

Hi Jason,

I meet the same issue. Would you please share your solution with me?

I run android recording application and the error -16 occur.

my e-mail: tech.win@outlook.com

Thank you so much!