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video.go
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video.go
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/*
This example will connect to the Bebop and stream it's video to a webpage
via ffserver. This requires you to have both ffmpeg and ffserver installed
on your computer.
In order to run this example you will first need to start ffserver with:
$ ffserver -f ff.conf
then in a separate terminal run this program:
$ go run video.go
You will then be able to view the video feed by navigatin to
http://localhost:8090/bebop.mjpeg in a web browser. *NOTE* firefox works
best for viewing the video feed.
*/
package main
import (
"fmt"
"io/ioutil"
"os/exec"
"time"
"github.com/hybridgroup/gobot/platforms/bebop/client"
)
func main() {
bebop := client.New()
if err := bebop.Connect(); err != nil {
fmt.Println(err)
return
}
ffmpeg := exec.Command("ffmpeg", "-i", "pipe:0", "http://localhost:8090/bebop.ffm")
ffmpegErr, err := ffmpeg.StderrPipe()
if err != nil {
fmt.Println(err)
return
}
ffmpegIn, err := ffmpeg.StdinPipe()
if err != nil {
fmt.Println(err)
return
}
if err := ffmpeg.Start(); err != nil {
fmt.Println(err)
return
}
go func() {
for {
buf, err := ioutil.ReadAll(ffmpegErr)
if err != nil {
fmt.Println(err)
}
if len(buf) > 0 {
fmt.Println(string(buf))
}
}
}()
go func() {
for {
if _, err := ffmpegIn.Write(<-bebop.Video()); err != nil {
fmt.Println(err)
}
}
}()
<-time.After(99 * time.Second)
}