/*
* 获取音频数据，格式为PCM
*/
int unidoli_aduio_read(AUDIO_DEV AiDev, AI_CHN AiChn, void *buf, uint32_t max_len, uint32_t *pts, uint32_t *id)
{
HI_S32 s32Ret;
AI_CHN_PARAM_S stAiChnPara;
s32Ret = HI_MPI_AI_GetChnParam(AiDev, AiChn, &stAiChnPara);
if (HI_SUCCESS != s32Ret) {
printf("%s: Get ai chn param failed\n", __FUNCTION__);
return -1;
}
stAiChnPara.u32UsrFrmDepth = 30;
s32Ret = HI_MPI_AI_SetChnParam(AiDev, AiChn, &stAiChnPara);
if (HI_SUCCESS != s32Ret) {
printf("%s: set ai chn param failed\n", __FUNCTION__);
return -1;
}
fd_set read_fds;
FD_ZERO(&read_fds);
HI_S32 AiFd = HI_MPI_AI_GetFd(AiDev, AiChn);
FD_SET(AiFd, &read_fds);
struct timeval TimeoutVal;
TimeoutVal.tv_sec = 1;
TimeoutVal.tv_usec = 0;
FD_ZERO(&read_fds);
FD_SET(AiFd, &read_fds);
s32Ret = select(AiFd + 1, &read_fds, NULL, NULL, &TimeoutVal);
if (s32Ret < 0) {
return -1;
} else if (0 == s32Ret) {
printf("%s: get ai frame select time out.\n", __FUNCTION__);
return -1;
}
int buf_len = 0;
if (FD_ISSET(AiFd, &read_fds)) {
/* get frame from ai chn */
AUDIO_FRAME_S stFrame;
AEC_FRAME_S stAecFrm;
memset(&stAecFrm, 0, sizeof(AEC_FRAME_S));
s32Ret = HI_MPI_AI_GetFrame(AiDev, AiChn, &stFrame, &stAecFrm, HI_FALSE);
if (HI_SUCCESS != s32Ret ) {
printf("%s: get ai frame failed.\n", __FUNCTION__);
return -1;
}
//printf("id:%d len:%d time:%lld\r\n", stFrame.u32Seq, stFrame.u32Len, stFrame.u64TimeStamp/1000);
buf_len = stFrame.u32Len;
*pts = stFrame.u64TimeStamp/1000;
*id = stFrame.u32Seq;
if(buf_len < max_len) {
memcpy(buf, stFrame.pVirAddr[0], buf_len);
} else {
printf("%s: max len failed.\n", __FUNCTION__);
return -1;
}
/* finally you must release the stream */
s32Ret = HI_MPI_AI_ReleaseFrame(AiDev, AiChn, &stFrame, &stAecFrm);
if (HI_SUCCESS != s32Ret ) {
printf("%s: HI_MPI_AI_ReleaseFrame(%d, %d), failed with %#x!\n", __FUNCTION__, AiDev, AiChn, s32Ret);
return -1;
}
}
return buf_len;
}
/******************************************************************************
* function : get frame from Ai, send it to Aenc or Ao
******************************************************************************/
void *SAMPLE_COMM_AUDIO_AiProc(void *parg)
{
HI_S32 s32Ret;
HI_S32 AiFd;
SAMPLE_AI_S *pstAiCtl = (SAMPLE_AI_S *)parg;
AUDIO_FRAME_S stFrame;
fd_set read_fds;
struct timeval TimeoutVal;
AI_CHN_PARAM_S stAiChnPara;
s32Ret = HI_MPI_AI_GetChnParam(pstAiCtl->AiDev, pstAiCtl->AiChn, &stAiChnPara);
if (HI_SUCCESS != s32Ret)
{
printf("%s: Get ai chn param failed\n", __FUNCTION__);
return NULL;
}
stAiChnPara.u32UsrFrmDepth = 30;
s32Ret = HI_MPI_AI_SetChnParam(pstAiCtl->AiDev, pstAiCtl->AiChn, &stAiChnPara);
if (HI_SUCCESS != s32Ret)
{
printf("%s: set ai chn param failed\n", __FUNCTION__);
return NULL;
}
FD_ZERO(&read_fds);
AiFd = HI_MPI_AI_GetFd(pstAiCtl->AiDev, pstAiCtl->AiChn);
FD_SET(AiFd,&read_fds);
while (pstAiCtl->bStart)
{
TimeoutVal.tv_sec = 1;
TimeoutVal.tv_usec = 0;
FD_ZERO(&read_fds);
FD_SET(AiFd,&read_fds);
s32Ret = select(AiFd+1, &read_fds, NULL, NULL, &TimeoutVal);
if (s32Ret < 0)
{
break;
}
else if (0 == s32Ret)
{
printf("%s: get ai frame select time out\n", __FUNCTION__);
break;
}
if (FD_ISSET(AiFd, &read_fds))
{
/* get frame from ai chn */
s32Ret = HI_MPI_AI_GetFrame(pstAiCtl->AiDev, pstAiCtl->AiChn,
&stFrame, NULL, HI_FALSE);
if (HI_SUCCESS != s32Ret )
{
printf("%s: HI_MPI_AI_GetFrame(%d, %d), failed with %#x!\n",\
__FUNCTION__, pstAiCtl->AiDev, pstAiCtl->AiChn, s32Ret);
pstAiCtl->bStart = HI_FALSE;
return NULL;
}
/* send frame to encoder */
if (HI_TRUE == pstAiCtl->bSendAenc)
{
HI_MPI_AENC_SendFrame(pstAiCtl->AencChn, &stFrame, NULL);
}
/* send frame to ao */
if (HI_TRUE == pstAiCtl->bSendAo)
{
HI_MPI_AO_SendFrame(pstAiCtl->AoDev, pstAiCtl->AoChn,
&stFrame, HI_TRUE);
}
/* finally you must release the stream */
HI_MPI_AI_ReleaseFrame(pstAiCtl->AiDev, pstAiCtl->AiChn,
&stFrame, NULL);
}
}
pstAiCtl->bStart = HI_FALSE;
return NULL;
}