https://github.com/octu0/go-xevd

Go bindings for mpeg5/xevd
https://github.com/octu0/go-xevd

binding evc golang video-codec

Last synced: 8 days ago
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Go bindings for mpeg5/xevd

• Host: GitHub
• URL: https://github.com/octu0/go-xevd
• Owner: octu0
• License: bsd-3-clause
• Created: 2022-09-19T12:36:09.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-09-20T14:11:31.000Z (over 2 years ago)
• Last Synced: 2024-11-08T00:44:55.639Z (2 months ago)
• Topics: binding, evc, golang, video-codec
• Language: Go
• Homepage: https://pkg.go.dev/github.com/octu0/go-xevd
• Size: 319 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# `go-xevd`

[![License](https://img.shields.io/github/license/octu0/go-xevd)](https://github.com/octu0/go-xevd/blob/master/LICENSE)

[![GoDoc](https://godoc.org/github.com/octu0/go-xevd?status.svg)](https://godoc.org/github.com/octu0/go-xevd)

[![Go Report Card](https://goreportcard.com/badge/github.com/octu0/go-xevd)](https://goreportcard.com/report/github.com/octu0/go-xevd)

[![Releases](https://img.shields.io/github/v/release/octu0/go-xevd)](https://github.com/octu0/go-xevd/releases)

Go bindings for [mpeg5/xevd](https://github.com/mpeg5/xevd)  

MPEG-5 EVC decoder.

## Requirements

requires xevd [install](https://github.com/mpeg5/xevd#how-to-build) on your system

```

$ git clone https://github.com/mpeg5/xevd.git

$ cd xevd

$ mkdir build

$ cd build

$ cmake .. -DSET_PROF=BASE

$ make

$ make install

```

## Usage

### Decode

```go

import "github.com/octu0/go-xevd"

func main() {

	decoder, err := xevd.CreateDefaultBaselineDecoder()

	if err != nil {

		panic(err)

	}

	defer decoder.Close()

	f, err := os.Open("./testdata/src.evc")

	if err != nil {

		panic(err)

	}

	defer f.Close()

	br := bufio.NewReader(f)

	if err := decoder.DecodeStream(br, func(buf *xevd.DecodeImageBuffer) {

		defer buf.Close()

		fmt.Printf("Frame:%s Slice:%s color:%s\n", buf.NALUnit, buf.Slice, buf.ColorSpace)

		// => Frame:IDR Slice:I color:YCbCr420

		if err := saveImage(buf.Img); err != nil {

			panic(err)

		}

	}); err != nil {

		panic(err)

	}

}

func saveImage(img image.Image) (string, error) {

	out, err := os.CreateTemp("/tmp", "out*.png")

	if err != nil {

		return "", err

	}

	defer out.Close()

	if err := png.Encode(out, img); err != nil {

		return "", err

	}

	return out.Name(), nil

}

```