question on when sink element send message to motify state playing to paused complete?

[Marco Ballesio]

Hi,

On Thu, May 26, 2011 at 6:17 AM, bcxa sz <bcxa.sz at gmail.com> wrote:
> Hi Developers,
>
> when change the playbin2 pipeline from playing to paused, the sink
> element will change state from playing to paused asynchronously. My
> question is when the sink element complete the state change?

Because of the excellent documentation GStreamer provides, when
searching for this kind of information Google and grep are your best
friends ;) .

Here's a starter:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-elements-states.html

> The data
> pre-rolled? How to know the data has been pre-rolled?

Check here (you'd get the same by cloning the gstreamer-core repo):

http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/part-preroll.txt

I hope this will help.

Regards

The queued data
> reach one pre-defined buffer level? what's the value of this buffer
> level?
>
> best regards
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