Hi, I don't think I'm handling multiple client connections properly in my
camera's live rtsp server.
My camera has multiple streams and I derive a class from FramedSource for
each of my substreams, the constructor looks like this:-
StreamSource::StreamSource(UsageEnvironment &env,streamSubStream_t
*substream) :
FramedSource(env), m_substream(substream)
{
FUNCTION_TRACE;
substream->source = this;
m_listsources.push_back(this);
++referenceCount;
if (eventTriggerId == 0)
{
eventTriggerId =
envir().taskScheduler().createEventTrigger(deliverFrame0);
}
m_BufferOffset = 0;
m_NalIndex = 0;
INFO("StreamSource constructor, this=0x%p, ref count =%d, StreamIndex =
%d\r\n",
this, referenceCount, substream->iStreamNo);
}
So I'm saving a pointer to the source in a parameter I pass in. The trouble
is, I think, when a second client connects to the same stream, another
instance of the class is created, and this pointer gets overwritten with the
latest instance. Then, when I need to trigger the event when I have a NAL
unit to send, I call this function:-
void signalNewFrameData(StreamSource* source) {
TaskScheduler* ourScheduler = &(source->envir().taskScheduler());
StreamSource* ourDevice = source;
if (ourScheduler != NULL)
{ // sanity check
TRACE("About to trigger Deliver event\r\n");
ourScheduler->triggerEvent(StreamSource::eventTriggerId, ourDevice);
}
}
I only seem to call this function for the last source on this substream.
I've inherited a lot of this code but do I need to trigger the event for all
sources connected or am I totally misunderstanding this mechanism?
Thanks - David
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