status_t OMXNodeInstance::freeNode(OMXMaster *master) {
static int32_t kMaxNumIterations = 10;
// Transition the node from its current state all the way down
// to "Loaded".
// This ensures that all active buffers are properly freed even
// for components that don't do this themselves on a call to
// "FreeHandle".
// The code below may trigger some more events to be dispatched
// by the OMX component - we want to ignore them as our client
// does not expect them.
mDying = true;
OMX_STATETYPE state;
CHECK_EQ(OMX_GetState(mHandle, &state), OMX_ErrorNone);
switch (state) {
case OMX_StateExecuting:
{
ALOGV("forcing Executing->Idle");
sendCommand(OMX_CommandStateSet, OMX_StateIdle);
OMX_ERRORTYPE err;
int32_t iteration = 0;
while ((err = OMX_GetState(mHandle, &state)) == OMX_ErrorNone
&& state != OMX_StateIdle
&& state != OMX_StateInvalid) {
if (++iteration > kMaxNumIterations) {
ALOGE("component failed to enter Idle state, aborting.");
state = OMX_StateInvalid;
break;
}
usleep(100000);
}
CHECK_EQ(err, OMX_ErrorNone);
if (state == OMX_StateInvalid) {
break;
}
// fall through
}
case OMX_StateIdle:
{
ALOGV("forcing Idle->Loaded");
sendCommand(OMX_CommandStateSet, OMX_StateLoaded);
freeActiveBuffers();
OMX_ERRORTYPE err;
int32_t iteration = 0;
while ((err = OMX_GetState(mHandle, &state)) == OMX_ErrorNone
&& state != OMX_StateLoaded
&& state != OMX_StateInvalid) {
if (++iteration > kMaxNumIterations) {
ALOGE("component failed to enter Loaded state, aborting.");
state = OMX_StateInvalid;
break;
}
ALOGV("waiting for Loaded state...");
usleep(100000);
}
CHECK_EQ(err, OMX_ErrorNone);
// fall through
}
case OMX_StateLoaded:
case OMX_StateInvalid:
break;
default:
CHECK(!"should not be here, unknown state.");
break;
}
ALOGV("calling destroyComponentInstance");
OMX_ERRORTYPE err = master->destroyComponentInstance(
static_cast<OMX_COMPONENTTYPE *>(mHandle));
ALOGV("destroyComponentInstance returned err %d", err);
mHandle = NULL;
if (err != OMX_ErrorNone) {
ALOGE("FreeHandle FAILED with error 0x%08x.", err);
}
mOwner->invalidateNodeID(mNodeID);
mNodeID = NULL;
ALOGV("OMXNodeInstance going away.");
delete this;
return StatusFromOMXError(err);
}
status_t OMXNodeInstance::freeNode() {
// Transition the node from its current state all the way down
// to "Loaded".
// This ensures that all active buffers are properly freed even
// for components that don't do this themselves on a call to
// "FreeHandle".
OMX_STATETYPE state;
CHECK_EQ(OMX_GetState(mHandle, &state), OMX_ErrorNone);
switch (state) {
case OMX_StateExecuting:
{
LOGV("forcing Executing->Idle");
sendCommand(OMX_CommandStateSet, OMX_StateIdle);
OMX_ERRORTYPE err;
while ((err = OMX_GetState(mHandle, &state)) == OMX_ErrorNone
&& state != OMX_StateIdle) {
usleep(100000);
}
CHECK_EQ(err, OMX_ErrorNone);
// fall through
}
case OMX_StateIdle:
{
LOGV("forcing Idle->Loaded");
sendCommand(OMX_CommandStateSet, OMX_StateLoaded);
freeActiveBuffers();
OMX_ERRORTYPE err;
while ((err = OMX_GetState(mHandle, &state)) == OMX_ErrorNone
&& state != OMX_StateLoaded) {
LOGV("waiting for Loaded state...");
usleep(100000);
}
CHECK_EQ(err, OMX_ErrorNone);
// fall through
}
case OMX_StateLoaded:
case OMX_StateInvalid:
break;
default:
CHECK(!"should not be here, unknown state.");
break;
}
OMX_ERRORTYPE err = OMX_MasterFreeHandle(mHandle);
mHandle = NULL;
if (err != OMX_ErrorNone) {
LOGE("FreeHandle FAILED with error 0x%08x.", err);
}
mOwner->invalidateNodeID(mNodeID);
mNodeID = NULL;
LOGV("OMXNodeInstance going away.");
delete this;
return StatusFromOMXError(err);
}