Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-12 Thread Dave McMordie
> > No, that happens only if the call to “isSSM()” returned True - i.e., only >> if the stream is ‘source-specific multicast’ - which is definitely not the >> case here (you’re streaming via unicast). So that’s a ‘red herring’. >> > > isSSM() is definitely returning true. > > > Then something is b

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-12 Thread Ross Finlayson
> No, that happens only if the call to “isSSM()” returned True - i.e., only if > the stream is ‘source-specific multicast’ - which is definitely not the case > here (you’re streaming via unicast). So that’s a ‘red herring’. > > isSSM() is definitely returning true. Then something is badly fuc

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-12 Thread Dave McMordie
> > > No, that happens only if the call to “isSSM()” returned True - i.e., only > if the stream is ‘source-specific multicast’ - which is definitely not the > case here (you’re streaming via unicast). So that’s a ‘red herring’. > isSSM() is definitely returning true. Any thoughts on what I could

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-08 Thread Ross Finlayson
> We were getting the datagrams, but code inside GroupSock.cpp line 314 was > checking that the address matched the advertised address, and returning with > bytesRead still equal to zero, despite a successful read. No, that happens only if the call to “isSSM()” returned True - i.e., only if th

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-08 Thread Dave McMordie
Okay, I think I have made some progress. I found two issues: 1. In-line with your firewall hypothesis, the server was announcing a 169.254.X.Y address, but I was playing from rtsp://127.0.0.1:5640/. When I pointed my rtsp URL to 169.254.X.Y instead of 127.0.0.1, the UDP packets start

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-08 Thread Ross Finlayson
> I spent some time going through older posts on this mailing list and noticed > the requirement that we not send multiple NALs to the > H264VideoStreamDiscreteFramer. I put in a test looking for multiple NALs by > matching the 0x0001 start code and found that most encoded frame buffers >

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-08 Thread Dave McMordie
On Fri, May 8, 2015 at 1:23 AM, Ross Finlayson wrote: > Having ruled out firewall and UDP transmission issues, what else could > cause RTP-over-UDP to fail when RTP-over-TCP works fine? > > > Nothing comes to mind, unfortunately. Assuming that you haven’t modified > the supplied code, I can’t th

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-08 Thread Ross Finlayson
> Having ruled out firewall and UDP transmission issues, what else could cause > RTP-over-UDP to fail when RTP-over-TCP works fine? Nothing comes to mind, unfortunately. Assuming that you haven’t modified the supplied code, I can’t think of any reason (other than firewalls) why RTP-over-TCP wo

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-07 Thread Dave McMordie
On Wed, May 6, 2015 at 5:23 PM, Ross Finlayson wrote: > Thanks for the quick response. I have upgraded both the client and server > to the May 3rd 2015 edition and the result appears to be the same. On > the receiving side I am still getting packets which appear to contain data > (or random gar

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-06 Thread Ross Finlayson
> Thanks for the quick response. I have upgraded both the client and server to > the May 3rd 2015 edition and the result appears to be the same. On the > receiving side I am still getting packets which appear to contain data (or > random garbage), and the head == tail, so the frame size is zer

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-06 Thread Dave McMordie
On Wed, May 6, 2015 at 2:57 PM, Ross Finlayson wrote: > I have a live555 on-demand RTSP server running locally (this is an older > version from about 2013) > > > Sorry, but old versions of our code are not supported - at all. > http://live555.com/liveMedia/faq.html#latest-version > Thanks for th

Re: [Live-devel] UDP packets appear to be empty, forcing switch to TCP in VLC

2015-05-06 Thread Ross Finlayson
> I have a live555 on-demand RTSP server running locally (this is an older > version from about 2013) Sorry, but old versions of our code are not supported - at all. http://live555.com/liveMedia/faq.html#latest-version Ross Finlayson Live Networks, Inc. http://www.live555.com/ _