Struct AsyncVideoDecoderBuilder 

pub struct AsyncVideoDecoderBuilder { /* private fields */ }

Async builder for AsyncVideoDecoder that mirrors the options available on the synchronous VideoDecoderBuilder.

Obtain one with AsyncVideoDecoder::builder. Call build to open the file asynchronously on a spawn_blocking thread.

Examples

use ff_decode::AsyncVideoDecoder;
use ff_format::PixelFormat;

let decoder = AsyncVideoDecoder::builder("video.mp4")
    .output_format(PixelFormat::Rgb24)
    .build()
    .await?;

Implementations

impl AsyncVideoDecoderBuilder

pub fn output_format(self, format: PixelFormat) -> Self

Sets the output pixel format for decoded frames.

Equivalent to VideoDecoderBuilder::output_format.

pub fn output_size(self, width: u32, height: u32) -> Self

Scales decoded frames to exact dimensions.

Equivalent to VideoDecoderBuilder::output_size.

pub fn output_width(self, width: u32) -> Self

Scales decoded frames to the given width, preserving the aspect ratio.

Equivalent to VideoDecoderBuilder::output_width.

pub fn output_height(self, height: u32) -> Self

Scales decoded frames to the given height, preserving the aspect ratio.

Equivalent to VideoDecoderBuilder::output_height.

pub async fn build(self) -> Result<AsyncVideoDecoder, DecodeError>

Opens the file and builds the async decoder.

File I/O and codec initialisation run on a spawn_blocking thread so the async executor is not blocked. All errors from VideoDecoderBuilder::build are propagated transparently.

Errors

Returns DecodeError if the file is missing, contains no video stream, uses an unsupported codec, or has invalid output dimensions.