/******************************************************************************
* function : get stream from Aenc, send it to Adec & save it to file
******************************************************************************/
void *SAMPLE_COMM_AUDIO_AencProc(void *parg) {
HI_S32 s32Ret;
HI_S32 AencFd;
SAMPLE_AENC_S *pstAencCtl = (SAMPLE_AENC_S *) parg;
AUDIO_STREAM_S stStream;
fd_set read_fds;
struct timeval TimeoutVal;
FD_ZERO(&read_fds);
AencFd = HI_MPI_AENC_GetFd(pstAencCtl->AeChn);
FD_SET(AencFd, &read_fds);
while (pstAencCtl->bStart) {
TimeoutVal.tv_sec = 1;
TimeoutVal.tv_usec = 0;
FD_ZERO(&read_fds);
FD_SET(AencFd, &read_fds);
s32Ret = select(AencFd + 1, &read_fds, NULL, NULL, &TimeoutVal);
if (s32Ret < 0) {
break;
} else if (0 == s32Ret) {
printf("%s: get aenc stream select time out\n", __FUNCTION__);
break;
}
if (FD_ISSET(AencFd, &read_fds)) {
/* get stream from aenc chn */
s32Ret = HI_MPI_AENC_GetStream(pstAencCtl->AeChn, &stStream,
HI_FALSE);
if (HI_SUCCESS != s32Ret) {
printf("%s: HI_MPI_AENC_GetStream(%d), failed with %#x!\n",
__FUNCTION__, pstAencCtl->AeChn, s32Ret);
pstAencCtl->bStart = HI_FALSE;
return NULL;
}
/* send stream to decoder and play for testing */
if (HI_TRUE == pstAencCtl->bSendAdChn) {
HI_MPI_ADEC_SendStream(pstAencCtl->AdChn, &stStream, HI_TRUE);
}
/* save audio stream to file */
fwrite(stStream.pStream, 1, stStream.u32Len, pstAencCtl->pfd);
/* finally you must release the stream */
HI_MPI_AENC_ReleaseStream(pstAencCtl->AeChn, &stStream);
}
}
fclose(pstAencCtl->pfd);
pstAencCtl->bStart = HI_FALSE;
return NULL;
}
LiveAudioStreamSource
::LiveAudioStreamSource(UsageEnvironment& env, StreamChannel chn)
: FramedSource(env), fChannelNo(chn)
{
TaskScheduler &scheduler = envir().taskScheduler();
aencFd = HI_MPI_AENC_GetFd(fChannelNo);
ClearAudioStreamBuffer(fChannelNo);
scheduler.setBackgroundHandling(aencFd, SOCKET_READABLE,
(TaskScheduler::BackgroundHandlerProc*)deliverFrame0,
this);
}
static HI_VOID * audio_thread(void * pParam)
{
prctl(PR_SET_NAME, __FUNCTION__);
HI_S32 s32Ret = HI_FAILURE;
HI_S32 AencFd = -1;
AUDIO_STREAM_S stStream;
memset(&stStream, 0, sizeof(stStream));
fd_set read_fds;
FD_ZERO(&read_fds);
struct timeval TimeoutVal = {0, 0};
AENC_CHN AeChn = 0;
AencFd = HI_MPI_AENC_GetFd(AeChn);
CHECK(AencFd > 0, NULL, "Error with %#x.\n", s32Ret);
int header_size = HIS_AUDIO_FRAME_HEADER_LEN;
if (PT_LPCM == get_payload_type())
{
header_size = 0;
}
while (g_audio_args->running)
{
int pass_time = util_time_pass(&g_audio_args->last_aw8733a_time);
if (pass_time > 30*1000)
{
if (g_audio_args->last_aw8733a_stat > 0)
{
g_audio_args->last_aw8733a_stat = 0;
s32Ret = audio_aw8733a(g_audio_args->last_aw8733a_stat);
CHECK(s32Ret == HI_SUCCESS, NULL, "Error with %#x.\n", s32Ret);
}
}
TimeoutVal.tv_sec = 0;
TimeoutVal.tv_usec = 100*1000;
FD_ZERO(&read_fds);
FD_SET(AencFd, &read_fds);
memset(&stStream, 0, sizeof(stStream));
s32Ret = select(AencFd + 1, &read_fds, NULL, NULL, &TimeoutVal);
if (s32Ret < 0)
{
ERR("select error: %s\n", strerror(errno));
break;
}
else if (0 == s32Ret)
{
WRN("select time out...\n");
continue;
}
if (FD_ISSET(AencFd, &read_fds))
{
/* get stream from aenc chn */
int timeout = 0; // 非阻塞
s32Ret = HI_MPI_AENC_GetStream(AeChn, &stStream, timeout);
CHECK(s32Ret == HI_SUCCESS, NULL, "Error with %#x.\n", s32Ret);
if (stStream.u32Len > header_size)
{
s32Ret = aenc_write_cb((HI_CHAR *)stStream.pStream+header_size, stStream.u32Len-header_size, stStream.u64TimeStamp);
CHECK(s32Ret == HI_SUCCESS, NULL, "Error with %#x.\n", s32Ret);
}
s32Ret = HI_MPI_AENC_ReleaseStream(AeChn, &stStream);
CHECK(s32Ret == HI_SUCCESS, NULL, "Error with %#x.\n", s32Ret);
}
}
return NULL;
}