Struct AV1CodecConfigurationRecord

pub struct AV1CodecConfigurationRecord {
    pub seq_profile: u8,
    pub seq_level_idx_0: u8,
    pub seq_tier_0: bool,
    pub high_bitdepth: bool,
    pub twelve_bit: bool,
    pub monochrome: bool,
    pub chroma_subsampling_x: bool,
    pub chroma_subsampling_y: bool,
    pub chroma_sample_position: u8,
    pub hdr_wcg_idc: u8,
    pub initial_presentation_delay_minus_one: Option<u8>,
    pub config_obu: Bytes,
}

AV1 Codec Configuration Record

https://aomediacodec.github.io/av1-isobmff/#av1codecconfigurationbox-syntax

Fields

seq_profile: u8

This field shall be coded according to the semantics defined in AV1.

3 bits

seq_level_idx_0: u8

This field shall be coded according to the semantics defined in AV1.

5 bits

seq_tier_0: bool

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

1 bit

high_bitdepth: bool

This field shall be coded according to the semantics defined in AV1.

1 bit

twelve_bit: bool

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

1 bit

monochrome: bool

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

1 bit

chroma_subsampling_x: bool

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

1 bit

chroma_subsampling_y: bool

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

1 bit

chroma_sample_position: u8

This field shall be coded according to the semantics defined in AV1, when present. If they are not present, they will be coded using the value inferred by the semantics.

2 bits

hdr_wcg_idc: u8

The value of this syntax element indicates the presence or absence of high dynamic range (HDR) and/or wide color gamut (WCG) video components in the associated PID according to the table below.

HDR/WCG IDC	Description
0	SDR
1	WCG only
2	HDR and WCG
3	No indication

2 bits

From a newer spec: https://aomediacodec.github.io/av1-mpeg2-ts/#av1-video-descriptor

initial_presentation_delay_minus_one: Option<u8>

Ignored for MPEG-2 TS use, included only to aid conversion to/from ISOBMFF.

4 bits

config_obu: Bytes

Zero or more OBUs. Refer to the linked specification for details.

8 bits

Implementations

impl AV1CodecConfigurationRecord

pub fn demux(reader: &mut Cursor<Bytes>) -> Result<Self>

Demuxes the AV1 Codec Configuration Record from the given reader.

pub fn size(&self) -> u64

Returns the size of the AV1 Codec Configuration Record.

pub fn mux<T: Write>(&self, writer: &mut T) -> Result<()>

Muxes the AV1 Codec Configuration Record to the given writer.

Trait Implementations

impl Clone for AV1CodecConfigurationRecord

fn clone(&self) -> AV1CodecConfigurationRecord

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AV1CodecConfigurationRecord

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

Formats the value using the given formatter.

impl PartialEq for AV1CodecConfigurationRecord

fn eq(&self, other: &AV1CodecConfigurationRecord) -> 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 StructuralPartialEq for AV1CodecConfigurationRecord