Enum TranscodeStageError 

#[non_exhaustive]
pub enum TranscodeStageError {
    Unsupported(&'static str),
    Backend {
        backend: &'static str,
        operation: &'static str,
        source: Box<dyn Error + Send + Sync + 'static>,
    },
    MemoryCapExceeded {
        requested: usize,
        cap: usize,
    },
    HostAllocationFailed {
        bytes: usize,
    },
    DeviceMemoryCapExceeded {
        backend: &'static str,
        what: &'static str,
        requested: usize,
        cap: usize,
    },
    DeviceAllocationFailed {
        backend: &'static str,
        what: &'static str,
        requested: usize,
    },
    DeviceUnavailable,
}

Error returned by accelerated transcode stage backends.

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.

Unsupported(&'static str)

The job shape, options, or environment are outside what this backend supports.

Backend

A backend accepted work and failed while executing it.

Fields

backend: &'static str

Stable backend name.

operation: &'static str

Stable backend operation name.

source: Box<dyn Error + Send + Sync + 'static>

Concrete adapter, runtime, or kernel source.

MemoryCapExceeded

The requested host workspace exceeds the shared process safety cap.

Fields

requested: usize

Requested host bytes.

cap: usize

Maximum permitted host bytes.

HostAllocationFailed

The host allocator could not reserve the requested workspace.

Fields

bytes: usize

Requested host bytes.

DeviceMemoryCapExceeded

A device allocation exceeds the backend’s checked safety cap.

Fields

backend: &'static str

Stable backend name.

what: &'static str

Logical device allocation purpose.

requested: usize

Requested device bytes.

cap: usize

Maximum permitted device bytes.

DeviceAllocationFailed

A cap-valid device allocation failed.

Fields

backend: &'static str

Stable backend name.

what: &'static str

Logical device allocation purpose.

requested: usize

Requested device bytes.

DeviceUnavailable

The device or runtime backing this accelerator is unavailable.

Implementations

impl TranscodeStageError

pub fn backend( backend: &'static str, operation: &'static str, source: impl Error + Send + Sync + 'static, ) -> Self

Retains a concrete backend, runtime, or kernel error source.

Trait Implementations

impl Debug for TranscodeStageError

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

Formats the value using the given formatter.

impl Display for TranscodeStageError

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

Formats the value using the given formatter.

impl Error for TranscodeStageError

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.