OK, a preliminary version of my module is functional. It's way away from production grade:
* the producer segfaults on exit * if the producer dies while holding the lock, the whole thing freezes * if the consumer restarts, the running producer(s)'s reference to shared memory will become invalid But all of these are fixable, maybe getting rid of the lock and using something like zmq (or just unix sockets, to minimize dependencies) for syncronizations. Although this wouldn't fix the consumer dying scenario. In any case, the big issue I'm facing right now is sync on the consumer side. I'm using posix's clock_nanosleep to run the consumer thread every ((1 / fps) * 1000000000) nanoseconds, but it's running slightly slow. I've even stopped using the read lock on the producer's side in case write starvation was the issue (slightly dangerous, might get corrupted data if the frame changes while making a read, but hasn't seen it happen so far). https://github.com/inaes-tic/mlt/blob/posixshm/src/modules/posixshm/consumer_posixshm.c https://github.com/inaes-tic/mlt/blob/posixshm/src/modules/posixshm/producer_posixshm.c if anyone cares to take a look, I'm specially worried about my usage of rt_frame in consumer_start (I need to get the audio format in order to allocate the shared memory space), and the pool_alloc's I do in https://github.com/inaes-tic/mlt/blob/posixshm/src/modules/posixshm/producer_posixshm.c#L170 Is doing set_data with the destructor, and then setting it to NULL when I pass the data to the frame the right way to do it? I'm talking about making sure the memory will be freed in case the producer is closed. -- "The whole of Japan is pure invention. There is no such country, there are no such people" --Oscar Wilde |_|0|_| |_|_|0| |0|0|0| (\__/) (='.'=)This is Bunny. Copy and paste bunny (")_(") to help him gain world domination. ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
