How add signal callback to rtspsrc

[elio.francesconi]

Hi all,

I need to add a signal to my pipeline... 

This is my pipeline:

pipeline = gst_parse_launch("rtspsrc location=rtsp://<ipaddress>/<url> latency=10 !  rtph264depay ! avdec_h264   ! autovideosink", &error);

and I need to implement the callback for "on-sdp" signal in grtsp element.

Someone can explain me how do that? Thanks a lot

Elio

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[Sebastian Dröge-3]

On Mo, 2016-03-14 at 12:33 +0100, elio francesconi wrote:
> Hi all,
> I need to add a signal to my pipeline... 
> This is my pipeline:
> pipeline = gst_parse_launch("rtspsrc
> location=rtsp://<ipaddress>/<url> latency=10 !  rtph264depay !
> avdec_h264   ! autovideosink", &error);
> and I need to implement the callback for "on-sdp" signal in grtsp
> element.
> Someone can explain me how do that? Thanks a lot

Give a name to rtspsrc by setting the name property, and then use
gst_bin_get_by_name() on the pipeline to get a pointer to the rtspsrc
instance. Then you can connect to the signal.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com


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[elio.francesconi]

Hi Sebastian 

thanks for your hint.

As you suggested I got the rtspBin element using:

 GstElement * rtspBin = gst_bin_get_by_name(GST_BIN(pipeline), "rtspsrc0");

AFAIK the name is  "rtspsrc0" and changes everytime I create a pipeline, it impossible for me detect the name because the second time the name is  "rtspsrc1"  the third  "rtspsrc2"...

Which is the correct behaviour to detect the name?

Or.. Can I get the rtspBin using gst_bin_get_by_interface?

In this case I can find files to include to be defined  GST_TYPE_RTSPSRC (I'm using GStreamer library 1.6.1 under iOS)

This is my code.

GstElement * rtspBin = gst_bin_get_by_interface(GST_BIN(pipeline), GST_TYPE_RTSPSRC);

Thanks for your time

Elio

2016-03-14 13:36 GMT+01:00 Sebastian Dröge <[hidden email]>:

On Mo, 2016-03-14 at 12:33 +0100, elio francesconi wrote:
> Hi all,
> I need to add a signal to my pipeline... 
> This is my pipeline:
> pipeline = gst_parse_launch("rtspsrc
> location=rtsp://<ipaddress>/<url> latency=10 !  rtph264depay !
> avdec_h264   ! autovideosink", &error);
> and I need to implement the callback for "on-sdp" signal in grtsp
> element.
> Someone can explain me how do that? Thanks a lot

Give a name to rtspsrc by setting the name property, and then use
gst_bin_get_by_name() on the pipeline to get a pointer to the rtspsrc
instance. Then you can connect to the signal.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com


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[Sebastian Dröge-3]

On Mo, 2016-03-14 at 16:49 +0100, elio francesconi wrote:
> Hi Sebastian 
> thanks for your hint.
> As you suggested I got the rtspBin element using:
>  GstElement * rtspBin = gst_bin_get_by_name(GST_BIN(pipeline),
> "rtspsrc0");
> AFAIK the name is  "rtspsrc0" and changes everytime I create a
> pipeline, it impossible for me detect the name because the second
> time the name is  "rtspsrc1"  the third  "rtspsrc2"...
> Which is the correct behaviour to detect the name?

"rtspsrc name=source location=rtsp://.... ! ..."

and then use "source" as the name.

> Or.. Can I get the rtspBin using gst_bin_get_by_interface?
> In this case I can find files to include to be defined
>  GST_TYPE_RTSPSRC (I'm using GStreamer library 1.6.1 under iOS)
>
> This is my code.
> GstElement * rtspBin = gst_bin_get_by_interface(GST_BIN(pipeline),
> GST_TYPE_RTSPSRC);

You should get a linker error with that, GST_TYPE_RTSPSRC is not part
of public headers or the libraries. Also it is not an interface type.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com


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