https://github.com/octu0/yuv

YUV(I420/yuv420 planar format) util written in Go.
https://github.com/octu0/yuv

go i420 ycbcr yuv yuv-tool yuv2rgb

Last synced: 26 days ago
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YUV(I420/yuv420 planar format) util written in Go.

• Host: GitHub
• URL: https://github.com/octu0/yuv
• Owner: octu0
• License: bsd-2-clause
• Created: 2019-09-28T16:15:53.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-10-03T18:17:10.000Z (over 5 years ago)
• Last Synced: 2024-11-08T00:44:54.845Z (3 months ago)
• Topics: go, i420, ycbcr, yuv, yuv-tool, yuv2rgb
• Language: HTML
• Homepage:
• Size: 262 KB
• Stars: 5
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# yuv

YUV(I420/yuv420p) utils.

this util feature:

- Convert I420 / YUV420 planar format data to rgb array

- Convert YCrCb to RGB

[example directory](https://github.com/octu0/yuv/tree/master/example) contains examples of converting yuv data to a format that can be expressed in HTML.

![browser debug](https://github.com/octu0/yuv/blob/master/example/screenshot_2019-09-29.png?raw=true)

# Usage

Prepare video data in YUV format and execute as below.

```

import(

  "github.com/octu0/yuv"

)

func main(){

  info    := decoder.Decode("foo.yuv")

  yuv420p := yuv.NewYUV420p(info.width, info.height, info.yStride, info.uvStride)

  for {

    frame := decoder.Next()

    decodedFrame(yuv420p, frame.Y, frame.U, frame.V)

  }

}

func decodedFrame(yuv420p *yuv.YUV420p, yPlane []byte, uPlane []byte, vPlane []byte) {

  rgb := yuv420p.ConvertRGBA(yPlane, uPlane, vPlane)

  i   := 0

  for y := 0; y < yuv420p.Height; y += 1 {

    for x := 0; x < yuv420p.Width; x += 1 {

      rgba := rgb[i]

      r, g, b := rgba.R, rgba.G, rgba.B

      fmt.Printf("r=%02x g=%02x b=%02x", r, g, b)

    }

    fmt.Println()

  }

}

```

see more [https://github.com/octu0/yuv/tree/master/example](example).

# License

BSD, see LICENSE file for details.