Enum FilterGraphParseError 

#[non_exhaustive]
pub enum FilterGraphParseError {
    OutOfMemory,
    InvalidArgument,
    EndOfFile,
    IOError,
    InvalidData,
    NotImplemented,
    PermissionDenied,
    NotSocket,
    OptionNotFound,
    InvalidFileIndexInFg(usize, String),
    InvalidFileIndexInOutput(usize, String),
    InvalidFilterSpecifier(String),
    OutputUnconnected(String, usize, String),
    UnknownError(i32),
}

Errors from parsing a filtergraph description and wiring its inputs and outputs.

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.

OutOfMemory

Memory allocation failed (AVERROR(ENOMEM)).

InvalidArgument

FFmpeg rejected an argument as invalid (AVERROR(EINVAL)).

EndOfFile

End of file was reached during parsing (AVERROR_EOF).

IOError

A low-level I/O error occurred (AVERROR(EIO)).

InvalidData

Invalid data was encountered during parsing (AVERROR_INVALIDDATA).

NotImplemented

The functionality or filter is not supported by the linked FFmpeg build (AVERROR(ENOSYS)).

PermissionDenied

Permission was denied — e.g. by a filter that opens files, such as movie= (AVERROR(EACCES)).

NotSocket

A socket operation was attempted on a non-socket by a filter touching network resources (AVERROR(ENOTSOCK)).

OptionNotFound

A filter option named in the description does not exist (AVERROR_OPTION_NOT_FOUND).

InvalidFileIndexInFg(usize, String)

Returned when a stream reference in the filtergraph description names an input file index that does not exist; fields are the index and the description.

InvalidFileIndexInOutput(usize, String)

Returned when an output URL references an input file index that does not exist; fields are the index and the URL.

InvalidFilterSpecifier(String)

Returned when a stream specifier in the filtergraph description is malformed; the payload is the offending text.

OutputUnconnected(String, usize, String)

Returned when a filtergraph output pad is not connected to any output; fields are the filter name, the pad index, and its link label.

UnknownError(i32)

Any other failure; the payload is the raw FFmpeg error code.

Trait Implementations

impl Debug for FilterGraphParseError

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

Formats the value using the given formatter.

impl Display for FilterGraphParseError

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

Formats the value using the given formatter.

impl Error for FilterGraphParseError

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.

impl From<FilterGraphParseError> for Error

fn from(source: FilterGraphParseError) -> Self

Converts to this type from the input type.

impl From<i32> for FilterGraphParseError

fn from(err_code: i32) -> Self

Converts to this type from the input type.