How is the _src_create() call-back invoked?

[Tim Müller]

On Fri, 2015-07-03 at 08:32 -0600, John P Poet wrote:

Hi John,

> I am using:
> 
> gst-launch-1.0 picoloh264videosrc location="/mnt/picolo_u16"
> connector=0 ! h264parse ! queue ! mux. picoloh264audiosrc
> location="/mnt/picolo_u16" connector=0 ! audioconvert ! lamemp3enc !
> queue ! mux. mpegtsmux name=mux ! filesink location=picolo.ts
> 
> 
> Would it help to add some more queue elements?

I guess that shuold be ok as is, but try adding queues after the source
element as well.


>         > I came across gst_pad_push_list(), but I get the impress
>         that that is
>         > not usable from within a _src_create() call-back.  Is that
>         correct?
>         
>         That's correct. Also see
>         https://bugzilla.gnome.org/show_bug.cgi?id=750241
> 
> 
> 
> That looks useful.  Is it stable enough for me to try?

The patches are not entirely up-to-date. I don't think it's what you
need, in your scenario you should just output buffers. If that doesn't
work properly, there's some other problem, perhaps with the timestamping
of one or both of the streams.

Look at the GST_DEBUG=*mux*:6,*collect*:6 debug log to see what
timestamps the muxer pads are getting, the muxer might not be popping
off buffers from one of the input pads for some reason.

Cheers 
 -Tim

-- 
Tim Müller, Centricular Ltd - http://www.centricular.com