Enum HardwareEncoder 

#[non_exhaustive]
pub enum HardwareEncoder {
    Auto,
    None,
    Nvenc,
    Qsv,
    Amf,
    VideoToolbox,
    Vaapi,
}

Hardware encoder type.

Specifies which hardware acceleration to use for encoding. Hardware encoding is generally faster and more power-efficient than software encoding, but may have slightly lower quality at the same bitrate.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Auto

Auto-detect available hardware encoder

None

Software encoding only (no hardware acceleration)

Nvenc

NVIDIA NVENC

Qsv

Intel Quick Sync Video

Amf

AMD Advanced Media Framework (AMF, formerly VCE)

VideoToolbox

Apple VideoToolbox

Vaapi

VA-API (Linux)

Implementations

impl HardwareEncoder

pub fn available() -> &'static [Self]

Get the list of concrete hardware encoder backends available on this system.

Returns only actual hardware backends (NVENC, QSV, AMF, VideoToolbox, VA-API). The control variants Auto and None are intentionally excluded — they are configuration options, not hardware backends.

The result is cached on first call for performance.

Examples

use ff_encode::HardwareEncoder;

let backends = HardwareEncoder::available();
if backends.is_empty() {
    println!("No hardware encoders detected");
} else {
    for hw in backends {
        println!("Available: {:?}", hw);
    }
}

pub fn is_available(self) -> bool

Check if this hardware encoder is available.

Queries FFmpeg to determine if the hardware encoder is available on the current system. This checks for both H.264 and H.265 support.

Examples

use ff_encode::HardwareEncoder;

if HardwareEncoder::Nvenc.is_available() {
    println!("NVENC is available on this system");
}

Trait Implementations

impl Clone for HardwareEncoder

fn clone(&self) -> HardwareEncoder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HardwareEncoder

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

Formats the value using the given formatter.

impl Default for HardwareEncoder

fn default() -> HardwareEncoder

Returns the “default value” for a type.

impl PartialEq for HardwareEncoder

fn eq(&self, other: &HardwareEncoder) -> 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 Copy for HardwareEncoder

impl Eq for HardwareEncoder

impl StructuralPartialEq for HardwareEncoder