GstSEIMetadata/User Guide: Difference between revisions

GstSEIMetadata/User Guide (view source)

Revision as of 14:37, 2 July 2021

2,369 bytes added , 2 July 2021

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→‎seiextract element

Fherrera

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 == seiextract element ==
+The expected output of running <pre>gst-inspect-1.0 seiextract</pre> is the following:
+<syntaxhighlight lang=bash>
+#gst-inspect-1.0 seiextract
-The following pipeline use the seiextract to add GstMeta to the output buffer with the message Hello World.
+Factory Details:
+  Rank                     none (0)
+  Long-name                SEI Extract Metadata
+  Klass                    Generic
+  Description              Extracts metadata from SEI NAL units
+  Author                   Fernando Herrera <fernando.herrera@ridgerun.com>
+Plugin Details:
+  Name                     sei
+  Description              Gstreamer plugin to add meta-data as SEI NAL units
+  Filename                 /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libsei.so
+  Version                  0.1.0
+  License                  Proprietary
+  Source module            gst-sei
+  Binary package           gst-sei
+  Origin URL               Unknown package origin
+GObject
+ +----GInitiallyUnowned
+       +----GstObject
+             +----GstElement
+                   +----GstBaseTransform
+                         +----GstSeiExtract
+Pad Templates:
+  SRC template: 'src'
+    Availability: Always
+    Capabilities:
+      video/x-h264
+          stream-format: { (string)byte-stream, (string)avc }
+  SINK template: 'sink'
+    Availability: Always
+    Capabilities:
+      video/x-h264
+          stream-format: { (string)byte-stream, (string)avc }
+Element has no clocking capabilities.
+Element has no URI handling capabilities.
+Pads:
+  SINK: 'sink'
+    Pad Template: 'sink'
+  SRC: 'src'
+    Pad Template: 'src'
+Element Properties:
+  name                : The name of the object
+                        flags: readable, writable
+                        String. Default: "seiextract0"
+  parent              : The parent of the object
+                        flags: readable, writable
+                        Object of type "GstObject"
+  qos                 : Handle Quality-of-Service events
+                        flags: readable, writable
+                        Boolean. Default: false
+  signal-new-metadata : Send a signal on new metadata
+                        flags: readable, writable
+                        Boolean. Default: false
+Element Signals:
+  "new-metadata" :  void user_function (GstElement* object,
+                                        guint arg0,
+                                        gpointer arg1,
+                                        gpointer user_data);
+</syntaxhighlight>
+The following pipeline use the seiextract element to add a GstMeta with the message "Hello World" to the output buffe.
 <pre>
 gst-launch-1.0 videotestsrc ! x264enc ! seiinject metadata="Hello World" ! seiextract ! filesink location=seiinject_videotestsrc.h264 -v