Struct NALUnitType

#[repr(transparent)]
pub struct NALUnitType(pub u8);

NAL (Network Abstraction Layer) unit types as defined by ISO/IEC 14496-10:2022 (Table 7-1).

Decoder Behavior:

• Some NAL units may be ignored depending on the decoder.
• Decoders using Annex A must ignore unit types 14, 15, and 20.
• Types 0 and 24-31 are application-specific and do not affect decoding.
• Reserved values should be ignored.

IDR (Instantaneous Decoder Refresh) Pictures:

• If nal_unit_type is 5, the picture must not contain types 1-4.
• IdrPicFlag is 1 if nal_unit_type == 5, otherwise 0.

Tuple Fields

0: u8

Implementations

impl NALUnitType

pub const Unspecified1: Self

Unspecified (not used in decoding)

pub const NonIDRSliceLayerWithoutPartitioning: Self

Regular video slice (non-IDR picture)

pub const SliceDataPartitionALayer: Self

Coded slice data partition A

pub const SliceDataPartitionBLayer: Self

Coded slice data partition B

pub const SliceDataPartitionCLayer: Self

Coded slice data partition C

pub const IDRSliceLayerWithoutPartitioning: Self

IDR picture (used to refresh the video stream)

pub const SEI: Self

Extra metadata (Supplemental Enhancement Information)

pub const SPS: Self

Sequence Parameter Set (SPS) – contains video configuration details

pub const PPS: Self

Picture Parameter Set (PPS) – contains picture-specific settings

pub const AccessUnitDelimiter: Self

Marks the start of a new access unit (frame boundary)

pub const EndOfSeq: Self

End of video sequence

pub const EndOfStream: Self

End of video stream

pub const FillerData: Self

Extra filler data (can be ignored)

pub const SPSExtension: Self

Extension to SPS (used for advanced encoding features)

pub const PrefixNalUnit: Self

Prefix NAL unit (ignored by Annex A decoders)

pub const SubsetSPS: Self

Subset of SPS (ignored by Annex A decoders)

pub const DepthParameterSet: Self

Depth parameter set (used for 3D video)

pub const Reserved1: Self

Reserved (should be ignored)

pub const Reserved2: Self

Reserved (should be ignored)

pub const AuxCodedPictureSliceLayerWithoutPartitioning: Self

Auxiliary coded slice (may be ignored by some decoders)

pub const SliceLayerExtension: Self

Additional slice data for extended coding (ignored by Annex A decoders)

pub const SliceLayerExtension2: Self

Slice extension for depth/3D-AVC video (ignored by some decoders)

pub const Reserved3: Self

Reserved (should be ignored)

pub const Reserved4: Self

Reserved (should be ignored)

pub const Unspecified2: Self

Unspecified (application-defined use)

Trait Implementations

impl Clone for NALUnitType

fn clone(&self) -> NALUnitType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NALUnitType

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

Formats the value using the given formatter.

impl From<NALUnitType> for u8

fn from(value: NALUnitType) -> Self

Converts to this type from the input type.

impl From<u8> for NALUnitType

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Hash for NALUnitType

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 Ord for NALUnitType

fn cmp(&self, other: &NALUnitType) -> 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 for NALUnitType

fn eq(&self, other: &NALUnitType) -> 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 NALUnitType

fn partial_cmp(&self, other: &NALUnitType) -> 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 NALUnitType

impl Eq for NALUnitType

impl StructuralPartialEq for NALUnitType