adding datetime stamp to location

[Nicolas Dufresne]

Le mercredi 08 septembre 2021 à 10:35 -0400, Dwight Kulkarni via gstreamer-devel
a écrit :
> Hi all,
> 
> I am trying to get my pipeline to add a datetime stamp to the location, as
> opposed to the numeric value. 
> 
> Previously I was using:  splitmuxsink location=video%02d.mkv
> 
> This is creating multiple files with video00.mkv etc. names.
> 
> Now I tried using: splitmuxsink location=video$(date +%s).mkv
> 
> This is creating only a single file with timestamp and appears to overwrite
> the previous files. 
> 
> 1) I see some examples where a callback is used. Should I use a callback or is
> there another way ?
> 
> 2) If I use callback, I have GstMediaFactory object where I assign the
> pipeline with:  gst_rtsp_media_factory_set_launch

You have to connect to the "media-configure" signal of your factory:

https://gitlab.freedesktop.org/gstreamer/gst-rtsp-server/-/blob/master/examples/test-appsrc.c#L123

And then use gst_rtps_media_get_element() to retreive the pipeline:

https://gitlab.freedesktop.org/gstreamer/gst-rtsp-server/-/blob/master/examples/test-appsrc.c#L66

regards,
Nicolas

> 
> I can't seem to find how to access the pipeline element in GstMediaFactory
> object.
> 
> I want to do something like this code:
> 
> static gchararray
> format_location_callback (GstElement * splitmux,
> guint fragment_id,
> gpointer udata)
> {
> static int i =0;
> gchararray myarray = g_strdup_printf("myvid%d.mp4", i);
> i += 1;
> 
> return myarray;
> }
> 
> g_signal_connect (G_OBJECT (bin->sink), "format-location",
> G_CALLBACK (format_location_callback), bin);
> 
> Any help is appreciated. Thanks !
> 

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