LiveWedge control library and samples

// Copyright 2015, Cerevo Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

This provides basic operations for the video switcher, "LiveWedge".

(See http://livewedge.cerevo.com/en/ about LiveWedge.)

This library is still alpha version. Compatiblity may break in future update.

Supported operations

• Screen transfer: Cut, Mix, Dip, Wipe
• Sub screen control: PinP, Chroma-key
• Start and stop recording and broadcasting
• Upload a still picture and use it as ch.4 input source
• Find LiveWedge within the same network

Not yet supported

Getting status from LiveWedge is still under construction. func (vsw Vsw) Request* are not yet fully documented.

Contents

libvsw

Common library for manupulating LiveWedge by network.

autotrans

Sample program to make video transition automatically. See samples/autotrans/00Readme.txt

samples/trans

Very simple program just to repeat cut and mix.

samples/wipe

Very simple program just to repeat wipe all pattern.

samples/pinp

Very simple program of Picture in Picture.

samples/chromakey

Very simple program of chroma key.

samples/rec

Very simple program just to send recording start/stop command with web UI.

samples/status

A sample program for getting status via UDP.

samples/find

A sample program for finding a LiveWedge within the same network.

How to build

0. Install go language.

Tested in linux/amd64,windows/amd64. Go version 1.14. I hope Mac works, too.

go get github.com/cerevo/LiveWedge_API/v2

Or

Write the code that loads the package and execute it.

import (
    "github.com/cerevo/LiveWedge_API/v2/libvsw"
)

go run .
go build .
go test .

API document

https://godoc.org/github.com/cerevo/LiveWedge_API/src/libvsw

How to use

At first, create vsw instance.

ip_address := "192.168.21.5" //ip address of LiveWedge
vsw, err := libvsw.NewVsw(ip_address)
if err != nil {
	fmt.Fprintf(os.Stderr, "Failed to open LiveWedge: %s\n", err)
	os.Exit(1)
}
defer vsw.Close()

Then, invoke method of vsw. For example, cut every 3 seconds.

i := 0
for {
	vsw.Cut(i + 1)  // src is {1..4}
	i = (i + 1) % 4
	time.Sleep(3 * time.Second)
}

See samples/trans/sample_trans.go for complete example.