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[mpp]: Fix block input error

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1. put_packet support block mode now.
2. The EosTask should be insure to be block mode.
3. NOTE: When set to block mode use put_packet and get_frame in single
thread may cause deadlock for the info change or eos may be blocked and
the put_packet can not return.

Change-Id: I8cf73f833e5d29c3b330c4b56fbd6be8d7432e60
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
This commit is contained in:
Herman Chen
2021-04-26 14:22:18 +08:00
parent 7d8b6414c3
commit aed7c380c5
3 changed files with 37 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
mpp/base/mpp_task_impl.cpp
View File

@@ -171,31 +171,33 @@ MPP_RET _mpp_port_poll(const char *caller, MppPort port, MppPollType timeout)
* negtive - block
* positive - timeout value
*/
if (timeout != MPP_POLL_NON_BLOCK) {
if (timeout) {
mpp_assert(curr->cond);
Condition *cond = curr->cond;
if (timeout == MPP_POLL_BLOCK) {
if (timeout < 0) {
mpp_task_dbg_flow("mpp %p %s from %s poll %s port block wait start\n",
queue->mpp, queue->name, caller,
port_type_str[port_impl->type]);
cond->wait(queue->lock);
ret = (MPP_RET)cond->wait(queue->lock);
} else {
mpp_task_dbg_flow("mpp %p %s from %s poll %s port %d timeout wait start\n",
queue->mpp, queue->name, caller,
port_type_str[port_impl->type], timeout);
cond->timedwait(queue->lock, timeout);
ret = (MPP_RET)cond->timedwait(queue->lock, timeout);
}
if (curr->count) {
mpp_assert(!list_empty(&curr->list));
ret = (MPP_RET)curr->count;
}
} else if (ret > 0)
ret = MPP_NOK;
}
mpp_task_dbg_flow("mpp %p %s from %s poll %s port timeout %d ret %d\n",
queue->mpp, queue->name, caller,
port_type_str[port_impl->type], ret);
port_type_str[port_impl->type], timeout, ret);
}
RET:
mpp_task_dbg_func("leave\n");

2
mpp/inc/mpp.h
View File

@@ -164,6 +164,7 @@ public:
MppPollType mOutputTimeout;
MppTask mInputTask;
MppTask mEosTask;
MppDec mDec;
MppEnc mEnc;
@@ -180,7 +181,6 @@ private:
RK_U32 mMultiFrame;
RK_U32 mStatus;
RK_S32 mDecResTaskCnt;
/* decoder paramter before init */
MppDecCfgSet mDecInitcfg;

40
mpp/mpp.cpp
View File

@@ -80,6 +80,7 @@ Mpp::Mpp()
mInputTimeout(MPP_POLL_BUTT),
mOutputTimeout(MPP_POLL_BUTT),
mInputTask(NULL),
mEosTask(NULL),
mDec(NULL),
mEnc(NULL),
mEncVersion(0),
@@ -88,7 +89,6 @@ Mpp::Mpp()
mInitDone(0),
mMultiFrame(0),
mStatus(0),
mDecResTaskCnt(1),
mExtraPacket(NULL),
mDump(NULL)
{
@@ -291,9 +291,9 @@ MPP_RET Mpp::put_packet(MppPacket packet)
return MPP_ERR_INIT;
MPP_RET ret = MPP_NOK;
RK_U32 eos = mpp_packet_get_eos(packet);
MppPollType timeout = mInputTimeout;
MppTask task_dequeue = NULL;
RK_U32 pkt_copy = 0;
if (mExtraPacket) {
MppPacket extra = mExtraPacket;
@@ -302,20 +302,35 @@ MPP_RET Mpp::put_packet(MppPacket packet)
put_packet(extra);
}
/* handle eos packet on non-block mode */
if (!mEosTask) {
/* handle eos packet on block mode */
ret = poll(MPP_PORT_INPUT, MPP_POLL_BLOCK);
if (ret < 0)
goto RET;
dequeue(MPP_PORT_INPUT, &mEosTask);
if (NULL == mEosTask) {
mpp_err_f("fail to reserve eos task\n", ret);
ret = MPP_NOK;
goto RET;
}
}
if (mpp_packet_get_eos(packet)) {
mpp_assert(mEosTask);
task_dequeue = mEosTask;
mEosTask = NULL;
}
/* Use reserved task to send eos packet */
if (mInputTask) {
if (mInputTask && !task_dequeue) {
task_dequeue = mInputTask;
mInputTask = NULL;
}
if (NULL == task_dequeue) {
ret = poll(MPP_PORT_INPUT, timeout);
if (ret < 0)
goto RET;
/* non-eos packet should reserve one task for eos case */
if (!eos && ret <= mDecResTaskCnt) {
if (ret < 0) {
ret = MPP_ERR_BUFFER_FULL;
goto RET;
}
@@ -335,6 +350,7 @@ MPP_RET Mpp::put_packet(MppPacket packet)
mpp_packet_copy_init(&pkt_in, packet);
mpp_packet_set_length(packet, 0);
pkt_copy = 1;
packet = pkt_in;
ret = MPP_OK;
} else {
@@ -361,15 +377,15 @@ MPP_RET Mpp::put_packet(MppPacket packet)
mPacketPutCount++;
if (timeout)
if (timeout && !pkt_copy)
ret = poll(MPP_PORT_INPUT, timeout);
RET:
/* wait enqueued task finished */
if (NULL == mInputTask) {
MPP_RET cnt = poll(MPP_PORT_INPUT, mInputTimeout);
MPP_RET cnt = poll(MPP_PORT_INPUT, MPP_POLL_NON_BLOCK);
/* reserve one task for eos block mode */
if (cnt > mDecResTaskCnt) {
if (cnt >= 0) {
dequeue(MPP_PORT_INPUT, &mInputTask);
mpp_assert(mInputTask);
}