https://github.com/image-rs/y4m

YUV4MPEG2 (.y4m) Encoder/Decoder
https://github.com/image-rs/y4m

Last synced: 3 months ago
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YUV4MPEG2 (.y4m) Encoder/Decoder

• Host: GitHub
• URL: https://github.com/image-rs/y4m
• Owner: image-rs
• License: mit
• Created: 2015-11-06T20:52:36.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2023-12-31T05:24:00.000Z (over 1 year ago)
• Last Synced: 2024-03-25T20:23:10.941Z (over 1 year ago)
• Language: Rust
• Homepage: https://docs.rs/y4m
• Size: 63.5 KB
• Stars: 33
• Watchers: 55
• Forks: 18
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# y4m [![Build Status](https://github.com/image-rs/y4m/actions/workflows/rust.yml/badge.svg)](https://github.com/image-rs/y4m/actions?query=branch%3Amaster) [![crates.io](https://img.shields.io/crates/v/y4m.svg)](https://crates.io/crates/y4m)

YUV4MPEG2 (.y4m) Encoder/Decoder. [Format specification](https://wiki.multimedia.cx/index.php?title=YUV4MPEG2).

## Usage

Simple stream copying:

```rust

extern crate y4m;

use std::io;

let mut infh = io::stdin();

let mut outfh = io::stdout();

let mut dec = y4m::decode(&mut infh).unwrap();

let mut enc = y4m::encode(dec.get_width(), dec.get_height(), dec.get_framerate())

    .with_colorspace(dec.get_colorspace())

    .write_header(&mut outfh)

    .unwrap();

loop {

    match dec.read_frame() {

        Ok(frame) => if enc.write_frame(&frame).is_err() { break },

        _ => break,

    }

}

```

See [API documentation](https://docs.rs/y4m) for overview of all available methods. See also [this example](examples/resize.rs) on how to resize input y4m into grayscale y4m of different resolution:

```bash

cargo build --release --example resize

ffmpeg -i in.mkv -f yuv4mpegpipe - | target/release/examples/resize - 640x360 - | mpv -

```

## License

Library is licensed under [MIT](LICENSE).