Enum DemuxError 

pub enum DemuxError {
    Ffmpeg(Error),
    AttachmentAlloc {
        stream_index: usize,
    },
    ParametersMissing {
        stream_index: usize,
    },
    ParametersAlloc {
        stream_index: usize,
    },
    ParametersCopy {
        stream_index: usize,
        source: Error,
    },
    PacketBuffer {
        stream_index: usize,
        source: PacketBufferError,
    },
    ReaderPanic {
        message: SmolStr,
    },
}

Errors from FfmpegDemuxer.

Variants

Ffmpeg(Error)

The wrapped libavformat call reported an error — open, read or seek.

AttachmentAlloc

FFmpeg refused a buffer allocation while capturing an attachment’s payload at open time.

Fields

stream_index: usize

The AVStream.index whose payload could not be captured.

ParametersMissing

Codec parameters arrived that were never allocated.

ffmpeg_next::codec::Parameters has safe constructors that hand back a null-backed value when FFmpeg’s allocation failed, and they report nothing. Copying from one dereferences null, so it is refused where it arrives — at construction, and again in the copier — rather than crashing later somewhere that has forgotten the allocator ever failed.

Fields

stream_index: usize

The AVStream.index the parameters were offered for.

ParametersAlloc

Codec parameters for a track could not be allocated.

Fields

stream_index: usize

The AVStream.index whose parameters could not be copied.

ParametersCopy

Copying a track’s codec parameters failed part way.

Fields

stream_index: usize

The AVStream.index whose parameters could not be copied.

source: Error

What FFmpeg said.

PacketBuffer

A packet’s payload could not be referenced — the bytes are there and this layer could not carry them.

Never raised for a packet that simply has no payload: an empty packet is a marker some demuxers emit, and it is skipped in silence. Distinguishing the two is what keeps a refcount failure under memory pressure from looking like the file’s own word and dropping real compressed bytes.

Fields

stream_index: usize

The AVStream.index the packet belongs to.

source: PacketBufferError

What went wrong.

ReaderPanic

The Read + Seek source given to FfmpegDemuxer::open_reader panicked inside a libavformat callback.

The panic was caught before it could cross the extern "C" boundary and abort the process; this is what it said. The session is terminal — every later call reports the same panic.

Fields

message: SmolStr

What the panic payload said.

Trait Implementations

impl Clone for DemuxError

fn clone(&self) -> DemuxError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DemuxError

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

Formats the value using the given formatter.

impl Display for DemuxError

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

Formats the value using the given formatter.

impl Error for DemuxError

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<Error> for DemuxError

fn from(source: Error) -> Self

Converts to this type from the input type.