On 19 maj 2014, at 23:50, Ross Finlayson <finlay...@live555.com> wrote:
>> Here I only try to get the original stream to work through the replicator.
>> Based on the testReplicator example
>> all streams must be through a replicator, it's not possible to have one
>> stream use the replicator and one
>> stream use the normal way.
>
> That's correct. Only one object can be reading from a "FramedSource".
> (Otherwise, you'll see the "attempting to read more than once at the same
> time!" error message.) That's the whole reason why I developed the
> "StreamReplicator" class: To make it possible for data from a "FramedSource"
> to be delivered to more than one object.
It was a bit unclear that the StreamReplicator must be a central part of the
source-filter-sink chain,
instead of just "hooking in" to some part.
However, as soon as I add the StreamReplicator the video starts to stutter. I
leave it out, the stream
is fine. I don't actually do anything secondary yet, just trying to get the
main stream working through
it. To me it looks like frames get rendered like: 1 2 3 4 5 3 4 5 6 7 5 6 7 8
... The stutter is not
consistent though and does not happen every time I test, but it's there. The
stutter happens with:
m_replicator = StreamReplicator::createNew( envir(),
m_subsession->readSource(), False );
H264VideoStreamDiscreteFramer * framer =
H264VideoStreamDiscreteFramer::createNew( envir(),
m_replicator->createStreamReplica() );
if ( ! m_subsession->sink->startPlaying( *framer, ... ) {
Simply changing that to:
H264VideoStreamDiscreteFramer * framer =
H264VideoStreamDiscreteFramer::createNew( envir(), m_subsession->readSource() );
if ( ! m_subsession->sink->startPlaying( *framer, ... ) {
to remove StreamReplicator from the equation and there is no stutter anymore.
Switching where the replicator is like this:
H264VideoStreamDiscreteFramer * framer =
H264VideoStreamDiscreteFramer::createNew( envir(), m_subsession->readSource() );
m_replicator = StreamReplicator::createNew( envir(), framer, False );
if ( ! m_subsession->sink->startPlaying(
*m_replicator->createStreamReplica(), ... ) {
means no video is delivered at all anymore. So the replicator does something
fishy, it's not a 1:1 pass through and
duplicator.
--
Jan Ekholm
jan.ekh...@d-pointer.com
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