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GstInterpipe: Difference between revisions
→Buffer Forwarding
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=== Buffer Forwarding === | === Buffer Forwarding === | ||
The main purpose of the GstInterpipe Project is to communicate buffers from one pipeline to another. This can be done in a safe way, without worrying about the states or events of any of the pipelines. To set an interpipesrc (listener) to listen to a specific interpipesink (node), all it is needed is to set the ''listen-to'' property. A NULL or empty ''listen-to'' will disconnect the listener from any node. | The main purpose of the GstInterpipe Project is to communicate buffers from one pipeline to another. This can be done in a safe way, without worrying about the states or events of any of the pipelines. To set an interpipesrc (listener) to listen to a specific interpipesink (node), all it is needed is to set the ''listen-to'' property. A NULL or empty ''listen-to'' will disconnect the listener from any node. The following table summarises the properties involved in buffer transfer. | ||
{| class="wikitable" style="margin:auto;" | {| class="wikitable" style="margin:auto;" | ||
|- | |- | ||
! colspan="3" | Property | ! colspan="3" | Property | ||
|- | |||
| '''Element''' || colspan="2" | interpipesrc | |||
|- | |- | ||
| '''Name''' || colspan="2" | listen-to | | '''Name''' || colspan="2" | listen-to | ||
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| '''Description''' || colspan="2" | The name of the node to listen to | | '''Description''' || colspan="2" | The name of the node to listen to | ||
|- | |- | ||
| rowspan=" | | rowspan="2" | '''Special Values''' || NULL || Stop listening | ||
|- | |- | ||
| (empty) || Stop listening | | (empty) || Stop listening | ||
|} | |} | ||
<br> | |||
{| class="wikitable" style="margin:auto;" | |||
|- | |||
! colspan="3" | Property | |||
|- | |||
| '''Element''' || colspan="2" | interpipesink | |||
|- | |||
| '''Name''' || colspan="2" | name | |||
|- | |||
| '''Description''' || colspan="2" | The name of the node | |||
|- | |||
| '''Special Values''' || colspan="2" | |||
|} | |||
The following figures, and their respective gst-launch pipelines illustrate this concept: | The following figures, and their respective gst-launch pipelines illustrate this concept: | ||
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[[File:Buffer_transfer_not_connected.png|600px|framed|center|Detached pipelines]] | [[File:Buffer_transfer_not_connected.png|600px|framed|center|Detached pipelines]] | ||
gst-launch-1.0 interpipesrc listen-to="" ! | gst-launch-1.0 interpipesrc listen-to="" ! fakesink | ||
[[File:Buffer_transfer_connected.png|600px|framed|center|Attached pipelines]] | [[File:Buffer_transfer_connected.png|600px|framed|center|Attached pipelines]] | ||