[#OSSL_DECODER_INSTANCE_get_input_structure]
= OSSL&lowbar;DECODER&lowbar;INSTANCE&lowbar;get&lowbar;input&lowbar;structure
:mrdocs:

Return the input&hyphen;structure name configured for a decoder instance&period;

== Synopsis

Declared in `&lt;openssl&sol;decoder&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
OSSL&lowbar;DECODER&lowbar;INSTANCE&lowbar;get&lowbar;input&lowbar;structure(
    xref:OSSL_DECODER_INSTANCE.adoc[OSSL&lowbar;DECODER&lowbar;INSTANCE]* decoder&lowbar;inst,
    int* was&lowbar;set);
----

== Return Value

Input&hyphen;structure name string, or NULL if unset&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *decoder&lowbar;inst*
| Active decoder instance from a decode run&period;
| *was&lowbar;set*
| Optional output set to 1 if an input structure was explicitly configured&period;
|===


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