/
main.go
174 lines (138 loc) · 3.64 KB
/
main.go
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package main
import (
"flag"
"fmt"
"html/template"
"log"
"net/http"
"os"
"os/exec"
"time"
"github.com/sclevine/agouti"
)
var data map[string]interface{}
var datas []map[string]interface{}
var videoSize = size{1280, 720}
var talksFile = flag.String("talks", "talks.yaml", "The talks file in yaml format")
var eventFile = flag.String("event", "event.yaml", "The event data file, in yaml format")
var sponsorsFile = flag.String("sponsors", "sponsors.yaml", "Sponsors metadata, in yaml format")
var eventName = "Golang Montréal"
func main() {
flag.Parse()
err := loadTalks(*talksFile)
if err != nil {
log.Fatalln("Error reading talks file:", err)
}
err = loadEvent(*eventFile)
if err != nil {
log.Fatalln("Error reading event file:", err)
}
err = loadSponsors(*sponsorsFile)
if err != nil {
log.Fatalln("Error reading sponsors file:", err)
}
go serveTemplates()
time.Sleep(100 * time.Millisecond)
launchVideoRecording()
}
func serveTemplates() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.FileServer(http.Dir(".")).ServeHTTP(w, r)
return
}
t, err := template.ParseFiles("template.html")
if err != nil {
log.Println("ERROR parsing template.html:", err)
http.Error(w, "ERROR parsing template.html: "+err.Error(), 500)
return
}
w.Header().Set("Content-Type", "text/html")
err = t.Execute(w, map[string]interface{}{
"talks": talks.Talks,
"event": event,
"eventName": eventName,
"baseurl": "http://" + r.Host,
"sponsors": sponsors,
})
if err != nil {
fmt.Fprintf(w, "\n\nERROR executing template: "+err.Error())
}
})
fmt.Println("Listening on 127.0.0.1:7777")
err := http.ListenAndServe(":7777", nil)
if err != nil {
log.Fatalln("Error serving:", err)
}
}
func launchVideoRecording() {
dr := agouti.ChromeDriver()
failOnError(dr.Start())
page, err := dr.NewPage()
if err != nil {
log.Fatalln("couldn't get Page")
}
failOnError(page.Size(videoSize.W+chrome.Left+chrome.Right, videoSize.H+chrome.Top+chrome.Bottom))
failOnError(page.Navigate("http://localhost:7777/"))
var screenOffset point
failOnError(page.RunScript(`
window.loadVideoAutomation();
return {x: window.screenX, y: window.screenY};
`, nil, &screenOffset))
for i := 0; i < 10; i++ {
// Wait for .capture to appear
for {
found, err := page.All(".capture").Count()
failOnError(err)
if found == 1 {
break
}
}
doneCh := launchFFMPEG(screenOffset.X+chrome.Left, screenOffset.Y+chrome.Top, videoSize.W, videoSize.H, fmt.Sprintf("/tmp/video-automation-%02d.mp4", i+1))
// Wait for .capture to disappear
for {
found, _ := page.All(".capture").Count()
if found == 0 {
break
}
}
doneCh <- true
time.Sleep(1 * time.Second)
}
dr.Stop()
}
type rect struct {
X, Y, W, H int
}
type point struct {
X, Y int
}
type size struct {
W, H int
}
type dim struct {
Top, Bottom, Left, Right int
}
//var chrome = dim{77, 5, 5, 5}
var chrome = dim{114, 0, 13, 0}
func launchFFMPEG(x, y, w, h int, filename string) (done chan bool) {
done = make(chan bool)
args := []string{"-video_size", fmt.Sprintf("%dx%d", w, h), "-framerate", "25", "-f", "x11grab", "-draw_mouse", "0", "-i", fmt.Sprintf(":0.0+%d,%d", x, y), "-vcodec", "libx264", "-preset", "veryfast", "-y", filename}
fmt.Printf("\n\nCommand: ffmpeg %s\n\n", args)
cmd := exec.Command("ffmpeg", args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
stdinPipe, err := cmd.StdinPipe()
failOnError(err)
go func() {
failOnError(cmd.Start())
<-done
stdinPipe.Write([]byte("q"))
}()
return done
}
func failOnError(err error) {
if err != nil {
log.Fatalln("Failed", err)
}
}