求助帖，望路过的大佬给指点一下，万分感谢
软件SDK: Tina4-V1.2 SDK
硬件平台：百问网V853-AICT开发板
需求：我想要测试一下AEC效果
当前操作过程：我编译运行了external/eyesee-mpp/middleware/sun8iw21/sample/sample_aec例程。程序运行结束后输出的ai_cap.wav只有一个wav头44byte大小。
AEC调试记录：
测试过程如下（异常是没有获取到aec后的音频帧，所以结果文件ai_cap.wav只写了个44byte的wav头）：
初步定位：sample_aec.c:311行的ret = AW_MPI_AI_GetFrame(pCtx->mAIODev, pCtx->mAIChn, &frame, &stAecFrm, 500);
返回值为ERR_AI_BUF_EMPTY，拿不到音频帧，所以ai_cap.wav输出为空文件。。。
root@TinaLinux:/mnt/UDISK# ls
bg0.wav lost+found sample_aec sample_aec.conf
root@TinaLinux:/mnt/UDISK# cat sample_aec.conf
########### paramter (ref to tulip_cedarx.conf)############
[parameter]
pcm_src_path = "/mnt/UDISK/bg0.wav"
pcm_dst_path = "/mnt/UDISK/ai_cap.wav"
pcm_aec_path = "/mnt/UDISK/ai_aec.wav"
pcm_sample_rate = 16000
pcm_channel_cnt = 1
pcm_bit_width = 16
pcm_frame_size = 1024
aec_en = 1
aec_bypass = 0
ans_en = 1
ans_mode = 0
agc_en = 0
agc_gain = 0
add_wav_header = 1
root@TinaLinux:/mnt/UDISK# ./sample_aec -path sample_aec.conf
>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Media Process Platform<<<<<<<<<<<<<<<<<<<<<<<<<<<<
modName : MPP-Platform
tag : V1.0 Release
branch: v5-dev
commit: 4eed413532ad87725895a8cb1ba75e22fc328233
date : 20170725
author: jenkins
[ISP]>>>>>>>>>>>>>>>>>>>> ISP VERSION INFO <<<<<<<<<<<<<<<<<<<
IPCORE: ISP600
branch: libisp-dev
commit: c3bfa4e23fb037123e65a04eaaa39f7876cfe1a6
date : Mon Apr 10 10:37:15 2023 +0800
author: <zhenghanjie@allwinnertech.com>
--------------------------------------------------------
I0101 08:27:30.621999 1359 hwdisplay.c:93] <hw_display_init>
I0101 08:27:30.622413 1359 hwdisplay.c:1008] <hwd_init> (hwd_init 1008)
I0101 08:27:30.622590 1359 hwdisplay.c:1063] <hwd_init> ret[0][2,0]ch[0]lyl[0] init: enable[0], screenwin[0,0, 0x0], zorder[0], alpha[mode:0, value:0]
I0101 08:27:41.067487 1359 hwdisplay.c:1077] <hwd_exit> (hwd_exit 1077)
root@TinaLinux:/mnt/UDISK# ls
ai_cap.wav lost+found sample_aec.conf
bg0.wav sample_aec
root@TinaLinux:/mnt/UDISK# ll ai_cap.wav
-rw-r--r-- 1 root root 44 Jan 1 08:27 ai_cap.wav
root@TinaLinux:/mnt/UDISK#
Log如下：
root@TinaLinux:/mnt/UDISK# ls
bg0.wav lost+found sample_aec sample_aec.conf
root@TinaLinux:/mnt/UDISK# ./sample_aec -path sample_aec.conf
I0101 08:44:57.602978 1423 sample_aec.c:537] <main> Hello, sample_aec!
I0101 08:44:57.603532 1423 sample_aec.c:123] <ParseCmdLine> sample ao path:[./sample_aec], arg number is [3]
I0101 08:44:57.604031 1423 confparser.c:60] <createConfParser> load conf file sample_aec.conf ok!
I0101 08:44:57.604217 1423 sample_aec.c:210] <loadSampleAecConfig> config:/mnt/UDISK/bg0.wav-16000-1-1-1-0
I0101 08:44:57.604614 1423 sample_aec.c:492] <ParseWavHeader> Be careful! wav header has chunk:[0x5453494c], size:802, skip
I0101 08:44:57.604757 1423 sample_aec.c:583] <main> parse wav header size:854, ChnNum[1], SampleRate[16000], BitsPerSample[16]
I0101 08:44:57.604879 1423 mpi_sys.c:842] <AW_MPI_SYS_SetConf> kfctmpdir is [/tmp]
>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Media Process Platform<<<<<<<<<<<<<<<<<<<<<<<<<<<<
modName : MPP-Platform
tag : V1.0 Release
branch: v5-dev
commit: 4eed413532ad87725895a8cb1ba75e22fc328233
date : 20170725
author: jenkins
I0101 08:44:57.608041 1423 mpi_sys.c:1455] <AW_MPI_SYS_Init> ISP init
[ISP]>>>>>>>>>>>>>>>>>>>> ISP VERSION INFO <<<<<<<<<<<<<<<<<<<
IPCORE: ISP600
branch: libisp-dev
commit: c3bfa4e23fb037123e65a04eaaa39f7876cfe1a6
date : Mon Apr 10 10:37:15 2023 +0800
author: <zhenghanjie@allwinnertech.com>
--------------------------------------------------------
I0101 08:44:57.608318 1423 mpi_sys.c:1457] <AW_MPI_SYS_Init> ISP init done
I0101 08:44:57.608639 1423 hwdisplay.c:93] <hw_display_init>
I0101 08:44:57.608776 1423 hwdisplay.c:1008] <hwd_init> (hwd_init 1008)
I0101 08:44:57.608948 1423 hwdisplay.c:1063] <hwd_init> ret[0][2,0]ch[0]lyl[0] init: enable[0], screenwin[0,0, 0x0], zorder[0], alpha[mode:0, value:0]
I0101 08:44:57.649944 1423 audio_hw.c:228] <MakeAllMixerElemsAvailable> pcm open and close, all MixerElems maybe exist.
I0101 08:44:57.650145 1423 alsa_interface.c:707] <alsaOpenMixer> open mixer:hw:0
I0101 08:44:57.654989 1423 alsa_interface.c:762] <alsaOpenMixer> set playback vol_val to value: 27
I0101 08:44:57.655528 1423 alsa_interface.c:707] <alsaOpenMixer> open mixer:hw:1
I0101 08:44:57.659887 1423 AOChannel_Component.c:1127] <AOChannel_ComponentInit> create AOChannel threadId[0xb6d19d50]
I0101 08:44:57.660155 1423 sample_aec.c:618] <main> create ao channel[0] success!
I0101 08:44:57.660454 1431 mpi_sys.c:1073] <MonitorEnvVarThread> detect user environment:
I0101 08:44:57.660578 1431 mpi_sys.c:1074] <MonitorEnvVarThread> /tmp/mpp_log_level
I0101 08:44:57.660650 1431 mpi_sys.c:1075] <MonitorEnvVarThread> /tmp/mpp_venc_sei_config_param
I0101 08:44:57.660859 1433 Clock_Component.c:1117] <Clock_ComponentThread> ClockComp state[0x1]->Idle!
I0101 08:44:57.661008 1423 sample_aec.c:657] <main> create clock channel[0] success!
I0101 08:44:57.661122 1433 cedarx_avs_counter.c:148] <avscounter_start> (f:avscounter_start, l:148) Avscounter status [pause]->[run], pauseDuration[0][0]ms
I0101 08:44:57.661348 1423 alsa_interface.c:1063] <alsaMixerSetVolume> playback setVolume:31, err:0
I0101 08:44:57.661470 1423 alsa_interface.c:990] <alsaMixerSetAudioCodecHubMode> aec_elem_audio_codec_hub_mode:tx hub mode-1
I0101 08:44:57.661611 1423 alsa_interface.c:1013] <alsaMixerSetDAudio0HubMode> aec_elem_daudio0_hub_mode:tx hub mode-1
I0101 08:44:57.661720 1423 alsa_interface.c:1036] <alsaMixerSetDAudio0LoopBackEn> aec_elem_daudio0_loopback_en:loopback debug-1
I0101 08:44:57.661802 1423 alsa_interface.c:873] <alsaMixerSetCapPlaySyncMode> aec_elem_sync_mode_switch:rx sync mode-1
I0101 08:44:57.661893 1423 alsa_interface.c:873] <alsaMixerSetCapPlaySyncMode> aec_elem_sync_mode_switch:rx sync mode-1
I0101 08:44:57.661986 1423 alsa_interface.c:471] <alsaOpenPcm> open pcm! card:[CaptureMic], pcmFlag:[0](0-cap;1-play)
I0101 08:44:57.670695 1423 alsa_interface.c:351] <alsaSetPcmParams> set pcm params
I0101 08:44:57.671389 1423 alsa_interface.c:432] <alsaSetPcmParams> ----------------ALSA setting----------------
I0101 08:44:57.671531 1423 alsa_interface.c:433] <alsaSetPcmParams> >>Channels: 2, BitWidth: 16,phsical_w: 16, SampRate: 16000
I0101 08:44:57.671614 1423 alsa_interface.c:434] <alsaSetPcmParams> >>ChunkBytes: 4096, ChunkSize: 1024, BufferSize: 8192
I0101 08:44:57.672376 1423 AIChannel_Component.c:1076] <AIChannel_ComponentInit> create AiChannel threadId:0xb6cb0d50
I0101 08:44:57.672622 1423 sample_aec.c:715] <main> create ai channel[0] success!
I0101 08:44:57.672943 1423 sample_aec.c:748] <main> pthread create send_pcm_ao_thread[0xb6c8dd50]!
I0101 08:44:57.673185 1423 sample_aec.c:758] <main> pthread create send_pcm_ao_thread[0xb6c8dd50]!
I0101 08:44:57.674071 1432 AOChannel_Component.c:1642] <AOChannel_ComponentThread> AO get first pcm from ADec, nBufferLen: 2048, nTimeStamp:0us, param[16000-1-0],use it to init AudioRenderHal
I0101 08:44:58.005693 1432 AOChannel_Component.c:1653] <AOChannel_ComponentThread> audioDev[0-0] is not config, config it now
E0101 08:44:58.005830 1432 audio_hw.c:2082] <audioHw_AO_SetChnPubAttr> ao_set_attr_chl:0,stat:0
I0101 08:44:58.005944 1432 alsa_interface.c:990] <alsaMixerSetAudioCodecHubMode> aec_elem_audio_codec_hub_mode:tx hub mode-1
I0101 08:44:58.006077 1432 alsa_interface.c:1013] <alsaMixerSetDAudio0HubMode> aec_elem_daudio0_hub_mode:tx hub mode-1
I0101 08:44:58.006202 1432 alsa_interface.c:1036] <alsaMixerSetDAudio0LoopBackEn> aec_elem_daudio0_loopback_en:loopback debug-1
I0101 08:44:58.006304 1432 AOChannel_Component.c:1659] <AOChannel_ComponentThread> audioDev[0-0] is not start, start it now
E0101 08:44:58.006390 1432 audio_hw.c:2177] <audioHw_AO_EnableChn> ao_enable_chl:0
W0101 08:44:58.006491 1432 audio_hw.c:2220] <audioHw_AO_EnableChn> params of play_daudio0 chn[0] must follow PlaybackRateDmix in asound.conf! [16000-1-960]
I0101 08:44:58.006586 1432 alsa_interface.c:471] <alsaOpenPcm> open pcm! card:[hw:1,0], pcmFlag:[1](0-cap;1-play)
I0101 08:44:57.673751 1439 sample_aec.c:295] <AiSaveDataThread> AiSaveDataThread cap data file: /mnt/UDISK/ai_cap.wav, dst_fp:0x11f3120
I0101 08:44:58.011462 1432 alsa_interface.c:351] <alsaSetPcmParams> set pcm params
I0101 08:44:58.022038 1432 alsa_interface.c:432] <alsaSetPcmParams> ----------------ALSA setting----------------
I0101 08:44:58.022231 1432 alsa_interface.c:433] <alsaSetPcmParams> >>Channels: 1, BitWidth: 16,phsical_w: 16, SampRate: 16000
I0101 08:44:58.022336 1432 alsa_interface.c:434] <alsaSetPcmParams> >>ChunkBytes: 2048, ChunkSize: 1024, BufferSize: 8192
I0101 08:44:58.022434 1432 alsa_interface.c:539] <alsaPreparePcm> prepare pcm
I0101 08:44:58.032639 1432 audio_hw.c:2266] <audioHw_AO_EnableChn> daudio0 chn:0 prepare pcm done.
I0101 08:44:58.032795 1432 alsa_interface.c:471] <alsaOpenPcm> open pcm! card:[plug:PlaybackRateDmix], pcmFlag:[1](0-cap;1-play)
I0101 08:44:58.059717 1432 alsa_interface.c:351] <alsaSetPcmParams> set pcm params
I0101 08:44:58.082430 1432 alsa_interface.c:432] <alsaSetPcmParams> ----------------ALSA setting----------------
I0101 08:44:58.082617 1432 alsa_interface.c:433] <alsaSetPcmParams> >>Channels: 1, BitWidth: 16,phsical_w: 16, SampRate: 16000
I0101 08:44:58.082722 1432 alsa_interface.c:434] <alsaSetPcmParams> >>ChunkBytes: 2048, ChunkSize: 1024, BufferSize: 8192
I0101 08:44:58.082812 1432 alsa_interface.c:539] <alsaPreparePcm> prepare pcm
I0101 08:44:58.082922 1432 AOChannel_Component.c:1663] <AOChannel_ComponentThread> audio render hal init and run ok:0!
W0101 08:44:58.507748 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:44:59.008080 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:44:59.508420 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:00.008745 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:00.509076 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:01.009436 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:01.509773 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:02.010105 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:02.510436 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:03.010768 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:03.511103 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:04.011434 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
W0101 08:45:04.511764 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
I0101 08:45:04.579367 1438 sample_aec.c:402] <SendPcmAoThread> read file finish!
I0101 08:45:04.579592 1438 AOChannel_Component.c:172] <AOSetStreamEof> AO end flag is set! drain pcm flag:1!
I0101 08:45:04.579739 1432 AOChannel_Component.c:1605] <AOChannel_ComponentThread> A. AOChn[0-0] notify player eof!
I0101 08:45:04.579846 1432 AOChannel_Component.c:1608] <AOChannel_ComponentThread> AOChn[0-0] drain pcm ring buf!
W0101 08:45:05.012097 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
I0101 08:45:05.091085 1432 AOChannel_Component.c:1621] <AOChannel_ComponentThread> AOChn[0-0] drain pcm ring buf done, cost[511]ms!
I0101 08:45:05.091392 1432 sample_aec.c:66] <SampleAec_CallbackWrapper> AO channel notify APP that play complete!
I0101 08:45:05.091578 1432 AOChannel_Component.c:1566] <AOChannel_ComponentThread> AO EOF!
I0101 08:45:05.180292 1423 sample_aec.c:772] <main> sendPcmAoTid[0xb6c8dd50] is joined!
W0101 08:45:05.512420 1439 sample_aec.c:340] <AiSaveDataThread> Be careful! ai getFrame timeout?
I0101 08:45:05.512938 1423 sample_aec.c:781] <main> aiSaveDataTidPcm[0xb6c6ad50] is joined!
I0101 08:45:05.513210 1433 Clock_Component.c:1117] <Clock_ComponentThread> ClockComp state[0x3]->Idle!
I0101 08:45:05.513378 1432 AOChannel_Component.c:1419] <AOChannel_ComponentThread> release all frames to ADec, when state[0x2]->[0x1]
I0101 08:45:05.513515 1423 AOChannel_Component.c:896] <AOChannel_ComponentDeInit> wait AO channel component exit!...
I0101 08:45:05.513763 1423 AOChannel_Component.c:965] <AOChannel_ComponentDeInit> AO component exited!
I0101 08:45:05.513895 1423 audio_hw.c:2350] <audioHw_AO_DisableChn> close pcm! current AoCardType:[0-0]
I0101 08:45:05.526581 1423 audio_hw.c:2367] <audioHw_AO_DisableChn> close daudio0 pcm! current AoCardType:[0-0], daudio0:[0-0]
E0101 08:45:08.105403 1436 alsa_interface.c:585] <alsaReadPcm> read error: I/O error
E0101 08:45:08.105638 1436 audio_hw.c:1006] <audioHw_AI_CapThread> aec fatal error! mainChn fail to read pcm 4096 bytes-2--1
E0101 08:45:08.105772 1436 audio_hw.c:1036] <audioHw_AI_CapThread> Be careful! aec mainChn trigger result[-1] is not -EPIPE. Treated as EPIPE
I0101 08:45:08.105880 1436 audio_hw.c:1053] <audioHw_AI_CapThread> aec trigger fail[-1]:[1658080848]us, continue
I0101 08:45:08.105960 1436 audio_hw.c:1241] <audioHw_AI_CapThread> AI_CapThread exit!
W0101 08:45:08.107680 1423 AIChannel_Component.c:832] <AIChannel_ComponentDeInit> Be careful! aiDev[0]Chn[0] discard audio block num:0, discard audio data len:0
I0101 08:45:08.108138 1423 AIChannel_Component.c:866] <AIChannel_ComponentDeInit> Ai component exited!
I0101 08:45:08.108316 1423 alsa_interface.c:810] <alsaCloseMixer> close mixer
I0101 08:45:08.108635 1423 alsa_interface.c:810] <alsaCloseMixer> close mixer
I0101 08:45:08.108816 1423 hwdisplay.c:1077] <hwd_exit> (hwd_exit 1077)
I0101 08:45:08.662381 1431 mpi_sys.c:1080] <MonitorEnvVarThread> MonitorEnvVar thread will exit!
I0101 08:45:08.662796 1423 sample_aec.c:810] <main> ./sample_aec test result: success
root@TinaLinux:/mnt/UDISK#
我当前的menuconfig配置如下：
我当前的asound.conf配置如下：
pcm.!default {
type asym
playback.pcm “hw:{CARD=audiocodec, DEV=0}”
capture.pcm “hw:0,0”
}
pcm.PlaybackRateDmix {
type plug
slave {
pcm {
type dmix
ipc_key 1111
ipc_perm 0666
slave {
pcm “hw:0,0”
format S16_LE
rate 16000
channels 1
period_size 1024
periods 8
}
}
}
rate_converter “linear”
}
#pcm.resample rely on alsa-plugin and libspeexdsp. Select them in menuconfig if we want to use plugin pcm.resample.
pcm.resample {
type plug
slave {
pcm “hw:0,0”
format S16_LE
rate 16000
channels 1
}
rate_converter “speexrate”
}
pcm.CaptureMic {
type hooks
slave.pcm “hw:0,0”
hooks.0 {
type ctl_elems
hook_args [
{
name “MIC1 Switch”
preserve true
optional true
value 1
}
]
}
}
pcm.eq {
type awequal
slave.pcm “hw:0,0”
config_file “/etc/awequal.conf”
tuning_support true
