Open a 16-bit sampling rate of 48000 stereo PCM file, how to configure
Typedef struct hiAUDIO_FRAME_S
{
AUDIO_BIT_WIDTH_E enBitwidth;/* audio frame bitwidth */
AUDIO_SOUND_MODE_E enSoundmode;/* audio frame momo or stereo mode */
HI_U8 * u64VirAddr [2];
HI_U64 u64PhyAddr [2].
HI_U64 u64TimeStamp;/* audio frame timestamp */
HI_U32 u32Seq;/* audio frame seq */
HI_U32 u32Len;/* data lenth per channel frame in */
HI_U32 u32PoolId [2].
} AUDIO_FRAME_S;

Then call HI_S32 HI_MPI_AENC_SendFrame (AENC_CHN AeChn, const AUDIO_FRAME_S * pstFrm, const AEC_FRAME_S * pstAecFrm); Encoded into aac, the following code should be how to configure the audio data structure

If # 1
AIO_ATTR_S stAioAttr;
HI_S32 s32AencChnCnt;
# ifdef HI_ACODEC_TYPE_TLV320AIC31
AUDIO_DEV AiDev=SAMPLE_AUDIO_EXTERN_AI_DEV;
AUDIO_DEV AoDev=SAMPLE_AUDIO_EXTERN_AO_DEV;
StAioAttr. EnSamplerate=AUDIO_SAMPLE_RATE_48000;
StAioAttr. EnBitwidth=AUDIO_BIT_WIDTH_16;
StAioAttr. EnWorkmode=AIO_MODE_I2S_MASTER;
StAioAttr. EnSoundmode=AUDIO_SOUND_MODE_STEREO;
StAioAttr. U32EXFlag=0;
StAioAttr. U32FrmNum=30;
StAioAttr. U32PtNumPerFrm=AACLC_SAMPLES_PER_FRAME;
StAioAttr. U32ChnCnt=2;
StAioAttr. U32ClkSel=1;
StAioAttr. EnI2sType=AIO_I2STYPE_EXTERN;
# the else
AUDIO_DEV AiDev=SAMPLE_AUDIO_INNER_AI_DEV;
AUDIO_DEV AoDev=SAMPLE_AUDIO_INNER_AO_DEV;
StAioAttr. EnSamplerate=AUDIO_SAMPLE_RATE_48000;
StAioAttr. EnBitwidth=AUDIO_BIT_WIDTH_16;
StAioAttr. EnWorkmode=AIO_MODE_I2S_MASTER;
StAioAttr. EnSoundmode=AUDIO_SOUND_MODE_STEREO;
StAioAttr. U32EXFlag=0;
StAioAttr. U32FrmNum=30;
StAioAttr. U32PtNumPerFrm=AACLC_SAMPLES_PER_FRAME;
StAioAttr. U32ChnCnt=2;
StAioAttr. U32ClkSel=0;
StAioAttr. EnI2sType=AIO_I2STYPE_INNERCODEC;
# endif
Gs_bAioReSample=HI_FALSE;
EnInSampleRate=AUDIO_SAMPLE_RATE_BUTT;
EnOutSampleRate=AUDIO_SAMPLE_RATE_BUTT;


S32AencChnCnt=stAioAttr. U32ChnCnt & gt;> StAioAttr. EnSoundmode;//1
S32Ret=SAMPLE_COMM_AUDIO_StartAenc (s32AencChnCnt, & amp; StAioAttr gs_enPayloadType);
If (s32Ret! HI_SUCCESS=)
{
SAMPLE_DBG (s32Ret);

}

AUDIO_FRAME_S stFrame;
AEC_FRAME_S stAecFrm;
AUDIO_STREAM_S stStream;
FILE * fp=fopen ("/MNT/playout_t. PCM ", "rb +");
The FILE * fp_down=fopen ("/MNT/audio. Aac, "" wb +");
Int nBytesRead=0;
Int s32GetRet=1;
Unsigned char * pbPCMBuffer=(unsigned char *) malloc (960);
StFrame. U64VirAddr [0]=(unsigned char *) malloc (960);
StFrame. EnBitwidth=1;
StFrame. EnSoundmode=1;

StFrame. U64TimeStamp=0;
While (1)
{
NBytesRead=fread (pbPCMBuffer, 1, 960, fp);
Printf (" nBytesRead=% d \ n ", nBytesRead);
StFrame. U32Len=nBytesRead;
Memcpy (stFrame u64VirAddr [0], pbPCMBuffer, nBytesRead);
StFrame. U32Len=nBytesRead;

Memset (& amp; StAecFrm, 0, sizeof (AEC_FRAME_S));
S32Ret=HI_MPI_AENC_SendFrame (0, & amp; StFrame, & amp; StAecFrm);
If (HI_SUCCESS!=s32Ret)
{
Printf (" % s: HI_MPI_AENC_SendFrame, failed with % # x! \ n ", \
__FUNCTION__ s32Ret);

break;

}

S32GetRet=HI_MPI_AENC_GetStream (0, & amp; StStream HI_FALSE);
If (HI_SUCCESS!=s32GetRet)
{
Printf (" % s: HI_MPI_AENC_GetStream, failed with % # x! \ n ", \
__FUNCTION__ s32GetRet);
}

Fwrite (stStream. PStream, 1, stStream u32Len, fp_down);

If (nBytesRead & lt;=0)
{
break;
}

}
# endif
break;
}