Enum VplError 

#[non_exhaustive]
pub enum VplError {
    NotFound {
        tried: String,
    },
    MissingSymbol {
        symbol: &'static str,
    },
    Status {
        call: &'static str,
        status: mfxStatus,
    },
}

Errors opening the MVP dispatcher or a oneVPL session on it.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NotFound

No candidate oneVPL implementation library loaded (see Loader::open’s search order).

Fields

tried: String

Candidate paths/names tried, joined with ", ", for diagnostics.

MissingSymbol

A required entry point was missing from an otherwise-loaded library — loaded the wrong DLL, or a genuinely incompatible/older runtime.

Fields

symbol: &'static str

The C symbol name that failed to resolve.

Status

A oneVPL call returned a negative (error) mfxStatus.

Fields

call: &'static str

Name of the failing MFX* call, for diagnostics.

status: mfxStatus

The raw mfxStatus value returned.

Trait Implementations

impl Debug for VplError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for VplError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for VplError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.