[MPlayer-dev-eng] [PATCH] Network synchronized playback using UDP

[Laurent]

On Thu, Mar 19, 2009 at 11:02 AM, Uoti Urpala <uoti.urpala at pp1.inet.fi> wrote:
> On Thu, 2009-03-19 at 10:17 -0400, Laurent wrote:
>> I am one of those interested in such a synchronization feature.
>> Though, I don't like much the master-slave network synchronization approach
>> that tries to re-invent what NTP does.
>
> Just what are you calling "such a synchronization feature" if not the
> master-slave approach?
I just prefer synchronization as NTP can achieve, down to a few ms, rather than
master-slave synchronization as in this patch that is subject to
network latencies.

>
>> Also, IMO, speed adjustment is the only way to keep audio sync'ed between
>> players without disrupting the streams.
>
> Not sure what you're talking about here. Note that the patch in this
> thread does not try to sync audio output in the players at all (I
> assumed the slave players would not have individual audio output).
Yes... this patch does not address audio sync.
I think one should at least consider audio sync to ensure the proposed solution
will be expandable.

In addition, seeking is not a reliable way to sync video either, as
its precision could
be beyond several seconds, if not more, depending of the video.

Laurent