GES: Questions related to the new "gessrc" element

[David Ing]

bug filed here:
https://gitlab.freedesktop.org/gstreamer/gst-editing-services/issues/73

On Fri, Aug 2, 2019 at 9:48 AM David Ing <ding at panopto.com> wrote:

> It was an excellent suggestion to try it, but it doesn't work.
>
> As a repro, I have an xges file and media files here:
> https://drive.google.com/file/d/1rUqC2v55_uLk1J2sEfi1FGyxEfW_RJw_/view?usp=sharing
>
> You can extract the files into a folder, but the xges file has absolute
> file paths; so you will need to replace my path with yours.  Mine is
> "/home/ding/mess/xges_repro/fedora_30-1.16.0".
>
> You can run a command to prove that this is a valid xges file as follows:
>
> ges-launch-1.0 --load=04.xges
>
> Next you can run the command using playbin, and it just hangs.  It never
> plays.
>
> gst-launch-1.0 playbin uri=ges://04.xges
>
> I'm on Fedora 30, and I built 1.16.0 using gst-build.
>
> On Fri, Aug 2, 2019 at 3:05 AM Philippe Normand <phil at base-art.net> wrote:
>
>> On Thu, 2019-08-01 at 09:00 -0700, David Ing wrote:
>> > I am famliar with the GES Launch command which loads a timeline file
>> > in
>> > xges format.  The syntax is something like this:
>> >
>> > ges-launch-1.0 --load=MY_FILE.xges
>> >
>> >
>> > My first question is:
>> >
>> > Now I am wondering if there is a similar kind of command using GST
>> > Launch (
>> > *gst*-launch-1.0).  Specifically I am wondering if this is now
>> > possible via
>> > the new "gessrc" element.
>> >
>> >
>> > My second question is:
>> >
>> > I am wondering how the "gessrc" element is supposed to be used.
>> >
>> > The reason I ask is:  I have some C++ code which builds a GstPipeline
>> > which
>> > contains a GESTimeline.  Now I wonder if it is better to put a GESSrc
>> > inside of the GstPipeline (where the GESSrc contains the
>> > GESTimeline).
>>
>> gessrc seems to fit with your use-case indeed.
>> Set the playbin uri to ges:// and in the source-setup signal handler
>> set the timeline property on the element, as demonstrated in this C
>> example:
>>
>>
>> https://gitlab.freedesktop.org/gstreamer/gst-editing-services/blob/master/examples/c/gessrc.c
>>
>> Philippe
>>
>> > _______________________________________________
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>> > gstreamer-devel at lists.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>> _______________________________________________
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>
>
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