validate ¶

remove_split ¶

remove_split(
    current_stream: Stream,
    mapping: dict[Stream, Stream] = None,
) -> tuple[Stream, dict[Stream, Stream]]

Rebuild the graph with the given mapping.

Parameters:

Name	Type	Description	Default
`current_stream`	`Stream`	The stream to rebuild the graph with.	required
`mapping`	`dict[Stream, Stream]`	The mapping to rebuild the graph with.	`None`

Returns:

Type	Description
`tuple[Stream, dict[Stream, Stream]]`	A tuple of the new node and the new mapping.

add_split ¶

add_split(
    current_stream: Stream,
    down_node: Node = None,
    down_index: int = None,
    context: DAGContext = None,
    mapping: dict[
        tuple[Stream, Node | None, int | None], Stream
    ] = None,
) -> tuple[
    Stream,
    dict[tuple[Stream, Node | None, int | None], Stream],
]

Add split nodes to the graph.

Parameters:

Name	Type	Description	Default
`current_stream`	`Stream`	The stream to add split nodes to.	required
`down_node`	`Node`	The node use current_stream as input.	`None`
`down_index`	`int`	The index of the input stream in down_node.	`None`
`context`	`DAGContext`	The DAG context.	`None`
`mapping`	`dict[tuple[Stream, Node \| None, int \| None], Stream]`	The mapping to add split nodes to.	`None`

Returns:

Type	Description
`tuple[Stream, dict[tuple[Stream, Node \| None, int \| None], Stream]]`	A tuple of the new node and the new mapping.

fix_graph ¶

fix_graph(stream: Stream) -> Stream

Fix the graph by removing and adding split nodes.

Parameters:

Name	Type	Description	Default
`stream`	`Stream`	The stream to fix.	required

Returns:

Type	Description
`Stream`	The fixed stream.

Note

Fix the graph by resetting split nodes. This function is for internal use only.

validate ¶

validate(stream: Stream, auto_fix: bool = True) -> Stream

Validate the given DAG. If auto_fix is True, the graph will be automatically fixed to follow ffmpeg's rule.

Parameters:

Name	Type	Description	Default
`stream`	`Stream`	The DAG to validate.	required
`auto_fix`	`bool`	Whether to automatically fix the graph.	`True`

Returns:

Type	Description
`Stream`	The validated DAG context.