Question about caps, displayed in .dot files

[wl2776]

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:

video/mpeg 
  mpegversion: {1, 2} 
  systemstream: true
video/x-cdxa

at the typefind.source
and
ANY
at mpegpsdemux.sink

However, when I use playbin2, this link has only one label:

video/mpeg 
  mpegversion: {1, 2} 
  systemstream: true

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

[Stefan Sauer]

On 22.07.2010 12:12, wl2776 wrote:

> 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:
> video/mpeg
>   mpegversion: {1, 2}
>   systemstream: true
> video/x-cdxa
>
> at the typefind.source
> and
> ANY
> at mpegpsdemux.sink
>
> However, when I use playbin2, this link has only one label:
> video/mpeg
>   mpegversion: {1, 2}
>   systemstream: true
>
>
> Do two caps labels mean that the linked elements are not fully negotiated
> yet?
>
>  

yes.

Stefan

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