[rtmpdump] Pull request: -objEnc opt flag for rtmpdump

[Howard Chu]

Foy Savas wrote:
> I was recently dumping some videos for a client and found a major CDN
> disconnecting on me after streaming just a small bit of content.
>
> After extensively diff-ing the packet exchanges from rtmpdump with
> that of a working SWF through rtmpsuck, the only major difference was
> the SWF specifying AMF3 objectEncoding on connect. As odd as that may
> sound, when I forced rtmpdump to connect specifying AMF3, I no longer
> received any peer disconnects.
>
> Just in case others run into this same problem, here's a link to a
> commit modifying rtmpdump to more readily set objectEncoding via opt
> flag:
>
> https://github.com/foysavas/rtmpdump/commit/2c2ae7b79251c72303c4f4b1d94c8a25e7997707

Individual option flags for rtmpdump are being phased out. New options should 
be added to librtmp.