hls: fix redirected stream name

[ham3r]

Fixes on_publish redirection to the new stream name based on the location header

[ham3r]

Resolves issue: #713 #777

[victory7]

You just changed the line of one module name located in the config file and the issue fixed ?!
How?

[ham3r]

Well, event callback chain of the sub-modules is defined statically. As you can see in the ngx_rtmp_(.*)_postconfiguration function implementation, it replaces ngx_rtmp_publish static pointer, like below:

next_publish = ngx_rtmp_publish;
ngx_rtmp_publish = ngx_rtmp_(.*)_publish;

Any new, configured sub-module uses their own callback as the new "head" of the chain, pushing others further. So, compilation order matters, and it's resolved in reverse order.

To workaround HLS/DASH issue, moving notification sub-module lower in the configuration allows it to be placed closer the beginning of the chain and therefore allows to be evaluated before HLS/DASH sub-module starts their own job.

[victory7]

Thanks!
So, I'm going to check it out.

[victory7]

Awesome, it worked well.