bool
RecordClient::
waitAndHandleReturnBuffers(sp<IImgBufQueue>const& rpBufQueue)
{
bool ret = false;
uint32_t i,size;
Vector<ImgBufQueNode> vQueNode;
//
MY_LOGD_IF(ENABLE_LOG_PER_FRAME, "+");
//
{
Mutex::Autolock _l(mModuleMtx);
//
size = mvRecBufInfo.size();
for(i=0; i<size; i++)
{
if(mvRecBufInfo[i].Sta == REC_BUF_STA_ENQUE)
{
break;
}
}
}
//
if(i == size)
{
MY_LOGW("No ENQUE buf");
usleep(NO_ENQUE_WAIT_TIME);
return ret;
}
//
// (1) deque buffers from processor.
rpBufQueue->dequeProcessor(vQueNode);
if ( vQueNode.empty() ) {
MY_LOGW("vQueNode.empty()");
usleep(EMPTY_QUE_WAIT_TIME);
goto lbExit;
}
//
// (2) handle buffers dequed from processor.
ret = handleReturnBuffers(vQueNode);
lbExit:
//
MY_LOGD_IF(ENABLE_LOG_PER_FRAME, "- ret(%d)", ret);
return ret;
}
/******************************************************************************
* buffer can be reached either by client enque back buffer
* or by previewclient.
*******************************************************************************/
bool
PREFEATUREABSE::
waitAndHandleReturnBuffers(sp<IImgBufQueue>const& rpBufQueue, ImgBufQueNode &rQueNode)
{
bool ret = false;
Vector<ImgBufQueNode> vQueNode;
//
MY_LOGD_IF(ENABLE_LOG_PER_FRAME, "+");
//
// (1) wait and deque from processor
rpBufQueue->dequeProcessor(vQueNode);
if ( vQueNode.empty() )
{
ret = false;
MY_LOGD("Deque from processor is empty. Suppose stopProcessor has been called");
goto lbExit;
}
// (2) check vQueNode:
// - TODO or CANCEL
// - get and keep the latest one with TODO tag;
// - otherwise, return to processors
for (size_t i = 0; i < vQueNode.size(); i++)
{
if (vQueNode[i].isDONE() && vQueNode[i].getImgBuf() != 0)
{
if (rQueNode.getImgBuf() != 0 ) // already got
{
handleReturnBuffers(rpBufQueue, rQueNode);
}
rQueNode = vQueNode[i]; // update a latest one
ret = true;
}
else
{
handleReturnBuffers(rpBufQueue, vQueNode[i]);
}
}
lbExit:
//
MY_LOGD_IF(ENABLE_LOG_PER_FRAME, "-");
return ret;
}
