打開一個16位采樣率48000立體聲的pcm檔案，如何通過配置
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 in frame*/
HI_U32 u32PoolId[2];
} AUDIO_FRAME_S;
然后呼叫HI_S32 HI_MPI_AENC_SendFrame(AENC_CHN AeChn, const AUDIO_FRAME_S *pstFrm, const AEC_FRAME_S *pstAecFrm);進行編碼成aac，下面代碼應該怎樣配置音頻結構體資料
#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;
#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 >> stAioAttr.enSoundmode; //1
s32Ret = SAMPLE_COMM_AUDIO_StartAenc(s32AencChnCnt, &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+");
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(&stAecFrm, 0, sizeof(AEC_FRAME_S));
s32Ret = HI_MPI_AENC_SendFrame(0, &stFrame, &stAecFrm);
if (HI_SUCCESS != s32Ret )
{
printf("%s: HI_MPI_AENC_SendFrame, failed with %#x!\n", \
__FUNCTION__, s32Ret);
break;
}
s32GetRet = HI_MPI_AENC_GetStream(0, &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 <= 0)
{
break;
}
}
#endif
break;
}
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