[gst-devel] Question about caps, displayed in .dot files

wl2776 wl2776 at gmail.com
Thu Jul 22 11:12:25 CEST 2010

While using GST_DEBUG_BIN_TO_DOT_FILE macro I am getting different pictures. 
Sometimes links between elements have two caps definitions, and sometimes -
only one.

For example, when I build a pipeline using gst-launch, typefind and
mpegpsdemux have a link with two labels: 
  mpegversion: {1, 2} 
  systemstream: true

at the typefind.source 
at mpegpsdemux.sink

However, when I use playbin2, this link has only one label:
  mpegversion: {1, 2} 
  systemstream: true

Do two caps labels mean that the linked elements are not fully negotiated

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