Created
August 30, 2024 10:43
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A Go program to serve HTML page & Video.. so can open in Chrome and Cast via Tab
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| /* | |
| ## way to run.. then open http://localhost:8888 in Chrome & Cast your Tab | |
| export SERVE_VIDEO_FILE="/path/to/video.mp4" ; \ | |
| export SERVE_HTTP_PORT=":8888" ; \ | |
| go run serve.go | |
| */ | |
| package main | |
| import ( | |
| "fmt" | |
| "log" | |
| "net/http" | |
| "os" | |
| "time" | |
| ) | |
| var ( | |
| ListenAt = os.Getenv("SERVE_HTTP_PORT") | |
| VidFile = os.Getenv("SERVE_VIDEO_FILE") | |
| indexHtml = ` | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| width: 95%; | |
| height: 95vh; | |
| display: flex; | |
| self-align: center; | |
| text-align: center; | |
| justify-align: center; | |
| } | |
| #video-player { | |
| width: 100%; | |
| height: 100%; | |
| margin: 0 auto; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <video id="video-player" controls controlsList="nodownload" preload="metadata" crossorigin="anonymous"> | |
| <source id="video-player-src" src="/video/stream" type="video/mp4"> | |
| </video> | |
| </div> | |
| </body> | |
| <script> | |
| var container = document.querySelector("#container"); | |
| document.onkeydown = function(event) { | |
| switch (event.keyCode) { | |
| case 37: | |
| event.preventDefault(); | |
| vid_currentTime = container.currentTime; | |
| container.currentTime = vid_currentTime - 5; | |
| break; | |
| case 39: | |
| event.preventDefault(); | |
| vid_currentTime = container.currentTime; | |
| container.currentTime = vid_currentTime + 5; | |
| break; | |
| } | |
| }; | |
| </script> | |
| </html> | |
| ` | |
| ) | |
| func ServeStrAsHtml(s string) http.Handler { | |
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | |
| w.Header().Add("Content-Type", "text/html; charset=utf-8") | |
| fmt.Fprintf(w, s) | |
| }) | |
| } | |
| func ServeVideo(vidFile string) http.Handler { | |
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | |
| video, err := os.Open(vidFile) | |
| if err != nil { | |
| log.Fatal(err) | |
| } | |
| defer video.Close() | |
| http.ServeContent(w, r, vidFile, time.Now(), video) | |
| }) | |
| } | |
| func main() { | |
| mux := http.NewServeMux() | |
| mux.Handle("/video/stream", ServeVideo(VidFile)) | |
| mux.Handle("/", ServeStrAsHtml(indexHtml)) | |
| log.Println("listening at", ListenAt) | |
| log.Fatal(http.ListenAndServe(ListenAt, mux)) | |
| } |
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