GstSEIMetadata - Examples - Using Gstd

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The following is an example of how to insert metadata and receive a signal using gstd and the GstSEI plugin. Make sure you have gstd.

Now start the daemon

gstd -e

Start the client

gstd-client

Create a pipeline like this one.

pipeline_create p videotestsrc is-live=true ! x264enc ! seimetatester ! seiinject ! seiextract signal-new-metadata=true name=extract ! fakesink

Play it

pipeline_play p

Then receive the signal

signal_connect p extract new-metadata

The expected output is something similar to this:

{
  "code" : 0,
  "description" : "Success",
  "response" : {
    "name" : "new-metadata",
    "arguments" : [
        {
            "type" : "GstSeiExtract",
            "value" : "(GstSeiExtract) extract"
        },
        {
            "type" : "guint",
            "value" : 8
        },
        {
            "type" : "gpointer",
            "value" : "((gpointer) 0x7fdb9000fdc0)"
        }
    ]
}
}