Struct AVFormatFlags

#[repr(transparent)]
pub struct AVFormatFlags(pub i32);

Format flags used in FFmpeg’s AVFormatContext configuration.

These flags are format-specific capabilities that describe the inherent characteristics and limitations of a format (container). They are read-only properties that indicate what features a format supports or doesn’t support.

For example, NoFile indicates the format doesn’t need a regular file (like network protocols), while GlobalHeader indicates the format uses global codec headers.

See the official FFmpeg documentation: https://ffmpeg.org/doxygen/trunk/avformat_8h.html

Tuple Fields

0: i32

Implementations

impl AVFormatFlags

pub const NoFile: Self

The format does not require a file to be opened explicitly.

• Used for: Protocol-based formats like rtmp://, http://
• Equivalent to: AVFMT_NOFILE

pub const NeedNumber: Self

Requires a numbered sequence of files (e.g., %03d in filenames).

• Used for: Image sequences, segment-based formats.
• Equivalent to: AVFMT_NEEDNUMBER

pub const Experimental: Self

The format is experimental and may be subject to changes.

• Used for: Newer formats that are not yet stable.
• Equivalent to: AVFMT_EXPERIMENTAL

pub const ShowIds: Self

Displays stream identifiers when logging or printing metadata.

• Equivalent to: AVFMT_SHOW_IDS

pub const GlobalHeader: Self

Uses a global header instead of individual packet headers.

• Used for: Codecs that require an extradata header (e.g., H.264, AAC in MP4).
• Equivalent to: AVFMT_GLOBALHEADER

pub const NoTimestamps: Self

The format does not store timestamps.

• Used for: Raw formats (e.g., raw audio, raw video).
• Equivalent to: AVFMT_NOTIMESTAMPS

pub const GenericIndex: Self

The format has a generic index.

• Used for: Formats that require seeking but don’t use timestamp-based indexing.
• Equivalent to: AVFMT_GENERIC_INDEX

pub const TsDiscontinuous: Self

The format supports discontinuous timestamps.

• Used for: Live streams where timestamps may reset (e.g., HLS, RTSP).
• Equivalent to: AVFMT_TS_DISCONT

pub const VariableFps: Self

The format supports variable frame rates.

• Used for: Video formats where frame duration varies (e.g., MKV, MP4).
• Equivalent to: AVFMT_VARIABLE_FPS

pub const NoDimensions: Self

The format does not store dimensions (width & height).

• Used for: Audio-only formats, raw formats.
• Equivalent to: AVFMT_NODIMENSIONS

pub const NoStreams: Self

The format does not contain any stream information.

• Used for: Metadata-only containers.
• Equivalent to: AVFMT_NOSTREAMS

pub const NoBinarySearch: Self

The format does not support binary search for seeking.

• Used for: Formats where linear scanning is required (e.g., live streams).
• Equivalent to: AVFMT_NOBINSEARCH

pub const NoGenericSearch: Self

The format does not support generic stream search.

• Used for: Specialized formats that require specific handling.
• Equivalent to: AVFMT_NOGENSEARCH

pub const NoByteSeek: Self

The format does not support byte-based seeking.

• Used for: Formats that only support timestamp-based seeking.
• Equivalent to: AVFMT_NO_BYTE_SEEK

pub const AllowFlush: Self

Allows flushing of buffered data.

• Used for: Streaming formats that support mid-stream flushing.
• Equivalent to: AVFMT_ALLOW_FLUSH

pub const TsNonStrict: Self

The format does not require strict timestamp ordering.

• Used for: Formats where out-of-order timestamps are common.
• Equivalent to: AVFMT_TS_NONSTRICT

pub const TsNegative: Self

The format allows negative timestamps.

• Used for: Certain formats that support negative PTS/DTS.
• Equivalent to: AVFMT_TS_NEGATIVE

pub const SeekToPts: Self

Seeks are performed relative to presentation timestamps (PTS).

• Used for: Formats that use PTS instead of DTS for seeking.
• Equivalent to: AVFMT_SEEK_TO_PTS

Trait Implementations

impl BitAnd for AVFormatFlags

type Output = AVFormatFlags

The resulting type after applying the & operator.

fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation.

impl BitAndAssign for AVFormatFlags

fn bitand_assign(&mut self, rhs: Self)

Performs the &= operation.

impl BitOr for AVFormatFlags

type Output = AVFormatFlags

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl BitOrAssign for AVFormatFlags

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl BitXor for AVFormatFlags

type Output = AVFormatFlags

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: Self) -> Self::Output

Performs the ^ operation.

impl BitXorAssign for AVFormatFlags

fn bitxor_assign(&mut self, rhs: Self)

Performs the ^= operation.

impl Clone for AVFormatFlags

fn clone(&self) -> AVFormatFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AVFormatFlags

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

Formats the value using the given formatter.

impl From<AVFormatFlags> for i32

fn from(value: AVFormatFlags) -> Self

Converts to this type from the input type.

impl From<AVFormatFlags> for u32

fn from(value: AVFormatFlags) -> Self

Converts to this type from the input type.

impl From<i32> for AVFormatFlags

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<u32> for AVFormatFlags

fn from(value: u32) -> Self

Converts to this type from the input type.

impl Hash for AVFormatFlags

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Not for AVFormatFlags

type Output = AVFormatFlags

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl Ord for AVFormatFlags

fn cmp(&self, other: &AVFormatFlags) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq<i32> for AVFormatFlags

fn eq(&self, other: &i32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for AVFormatFlags

fn eq(&self, other: &AVFormatFlags) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for AVFormatFlags

fn partial_cmp(&self, other: &AVFormatFlags) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for AVFormatFlags

impl Eq for AVFormatFlags

impl StructuralPartialEq for AVFormatFlags