Enum SurfaceEncoderPreference 

pub enum SurfaceEncoderPreference {
    VulkanVideoH264,
    VulkanVideoAV1,
    H264Software,
    H264Vaapi,
    AV1Vaapi,
    NvencH264,
    NvencAV1,
    AV1Software,
}

Variants

VulkanVideoH264

VulkanVideoAV1

H264Software

H264Vaapi

AV1Vaapi

NvencH264

NvencAV1

AV1Software

Implementations

impl SurfaceEncoderPreference

pub fn parse(value: &str) -> Option<Self>

pub fn parse_list(value: &str) -> Result<Vec<Self>, String>

Parse a comma-separated list of encoder preferences.

pub fn defaults() -> Vec<Self>

Sensible default: hardware before software, NVENC preferred.

Override at runtime with BLIT_SURFACE_ENCODERS=h264-nvenc,h264-software (comma-separated list).

pub fn supported_by_client(self, codec_support: u8) -> bool

Returns true if the given codec_support bitmask allows this encoder. A codec_support of 0 means “accept anything”.

pub fn supports_444_by_client(self, codec_support: u8) -> bool

Returns true if the client announced 4:4:4 chroma support for this encoder’s codec family. Legacy clients (codec_support == 0) are assumed to lack 4:4:4 support since the resulting Professional Profile bitstreams are not universally decodable.

pub fn max_dimensions(self) -> Option<(u16, u16)>

Maximum surface dimensions the encoder can handle. Returns None if there is no practical limit.

pub fn max_dimensions_for_list(prefs: &[Self]) -> Option<(u16, u16)>

Tightest max dimensions across a list of preferences.

pub fn is_vulkan_video(self) -> bool

Whether this encoder runs in the compositor via Vulkan Video.

pub fn vulkan_codec(self) -> u8

Vulkan Video codec byte: 0x01 = H.264, 0x02 = AV1.

pub fn codec_flag(self) -> u8

Codec flag matching SURFACE_FRAME_CODEC_* constants.

Trait Implementations

impl Clone for SurfaceEncoderPreference

fn clone(&self) -> SurfaceEncoderPreference

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SurfaceEncoderPreference

impl Debug for SurfaceEncoderPreference

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

Formats the value using the given formatter.

impl Eq for SurfaceEncoderPreference

impl Hash for SurfaceEncoderPreference

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 PartialEq for SurfaceEncoderPreference

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SurfaceEncoderPreference