Struct VideoModeOptions 

pub struct VideoModeOptions(/* private fields */);

Optional video mode parameters.

Implementations

impl VideoModeOptions

pub const fn new() -> VideoModeOptions

Create new empty set of options.

pub const fn set_quantization_level(&mut self, level: u8)

Set video codec quantization level.

Non-zero value makes video encoding lossy. Typical value is between 0 and 4.

pub const fn quantization_level(&self) -> u8

Returns video codec quantization level.

pub const fn set_chroma_subsampling(&mut self, value: bool)

Enables/disables 4:2:0 chroma subsampling.

Chroma subsampling makes video encoding lossy.

pub const fn chroma_subsampling(&self) -> bool

Returns true when chroma subsampling is enabled.

pub const fn set_raw(&mut self, value: bool)

Sets raw mode.

When enabled, video frames are written in the original format without encoding.

This is useful when running the code in a RISCV interpreter.

pub const fn raw(&self) -> bool

Returns true when raw mode is enabled.

pub const fn as_u64(self) -> u64

Trait Implementations

impl Clone for VideoModeOptions

fn clone(&self) -> VideoModeOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VideoModeOptions

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

Formats the value using the given formatter.

impl Decode for VideoModeOptions

fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<VideoModeOptions, Error>

where __CodecInputEdqy: Input,

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Default for VideoModeOptions

fn default() -> VideoModeOptions

Returns the “default value” for a type.

impl Encode for VideoModeOptions

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

where __CodecOutputEdqy: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

where __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl MaxEncodedLen for VideoModeOptions

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl PartialEq for VideoModeOptions

fn eq(&self, other: &VideoModeOptions) -> 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 TryFrom<u64> for VideoModeOptions

type Error = ()

The type returned in the event of a conversion error.

fn try_from( other: u64, ) -> Result<VideoModeOptions, <VideoModeOptions as TryFrom<u64>>::Error>

Performs the conversion.

impl Copy for VideoModeOptions

impl EncodeLike for VideoModeOptions

impl Eq for VideoModeOptions

impl StructuralPartialEq for VideoModeOptions