pythia.utils.gst#

Deepstream interface, utilities and customization.

pythia.utils.gst.element_repr(element: Object) → str[source]#

Compute element strig based on its hierarchy.

Parameters:: element – The gstreamer element.
Returns:: The element’s string representation.

Example

>>> from gi.repository import Gst
>>> Gst.init()
>>> pipeline = Gst.parse_launch(
...   "bin ( videotestsrc ! identity name=eye ) ! fakesink"
... )
>>> element_repr(pipeline.get_by_name("eye"))
'/Pipeline:pipeline0/Bin:bin1/GstIdentity:eye'

pythia.utils.gst.get_element(gst_bin: Bin, name) → Element[source]#

Get element from bin.

Parameters:

gst_bin – parent where the element is to be located.
name – name of the element to locate.

Returns:

The found element.

Raises:

NameError – internal gst getter returned None.

pythia.utils.gst.get_sinkpad(gst_bin: Bin, element_name: str) → Pad[source]#

Get sinkpad element from element.

Parameters:

gst_bin – parent where the element is to be located.
element_name – name of the element to locate the sink pad.

Returns:

The found source pad.

pythia.utils.gst.get_srcpad(gst_bin: Bin, element_name: str) → Pad[source]#

Get srcpad element from element.

Parameters:

gst_bin – parent where the element is to be located.
element_name – name of the element to locate the source pad.

Returns:

The found source pad.

pythia.utils.gst.get_static_pad(element: Element, direction: Literal['sink', 'src']) → Pad[source]#

Get static pad from element.

Parameters:

element – element where the pad is located.
direction – pad direction - “sink” or “source”.

Returns:

The found pad.

Raises:

ValueError – Unable to get the pad.

pythia.utils.gst.gst_init() → None[source]#: Initialize Gstreamer.

pythia.utils.gst.gst_iter(iterator: Iterator) → Iterator[source]#

Iterate pythonically over a Gst.Iterator.

Parameters:: iterator – the iterator which produces values.
Yields:: The values from the iterator