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https://gitlab.crans.org/nounous/ghostream.git
synced 2024-12-22 15:02:19 +00:00
Make telnet output configurable
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parent
e640450d98
commit
61ae490a5d
@ -68,6 +68,23 @@ srt:
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# Max number of active SRT connections
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#maxClients: 64
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## Telnet server ##
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# The telnet server receive the stream and emit the stream as ASCII-art.
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telnet:
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# By default, this easter egg is disabled.
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# You must enable it to use it.
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#enable: false
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#listenAddress: :4242
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# Size is in characters. It is recommended to keep a 16x9 format.
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#width: 80
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#height: 45
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# Time in milliseconds that we should sleep between two images. By default, 20 FPS. Displaying text takes time...
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#delay: 50
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## Web server ##
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# The web server serves a WebRTC player.
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web:
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@ -3,6 +3,7 @@ package config
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import (
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"bytes"
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"gitlab.crans.org/nounous/ghostream/stream/telnet"
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"log"
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"net"
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"strings"
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@ -25,6 +26,7 @@ type Config struct {
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Forwarding forwarding.Options
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Monitoring monitoring.Options
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Srt srt.Options
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Telnet telnet.Options
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Web web.Options
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WebRTC webrtc.Options
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}
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@ -56,6 +58,13 @@ func New() *Config {
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ListenAddress: ":9710",
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MaxClients: 64,
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},
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Telnet: telnet.Options{
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Enabled: false,
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ListenAddress: ":4242",
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Width: 80,
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Height: 45,
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Delay: 50,
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},
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Web: web.Options{
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Enabled: true,
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Favicon: "/static/img/favicon.svg",
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2
main.go
2
main.go
@ -5,6 +5,7 @@
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package main
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import (
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"gitlab.crans.org/nounous/ghostream/stream/telnet"
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"log"
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"gitlab.crans.org/nounous/ghostream/auth"
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@ -50,6 +51,7 @@ func main() {
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go forwarding.Serve(forwardingChannel, cfg.Forwarding)
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go monitoring.Serve(&cfg.Monitoring)
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go srt.Serve(&cfg.Srt, authBackend, forwardingChannel, webrtcChannel)
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go telnet.Serve(&cfg.Telnet)
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go web.Serve(remoteSdpChan, localSdpChan, &cfg.Web)
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go webrtc.Serve(remoteSdpChan, localSdpChan, webrtcChannel, &cfg.WebRTC)
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@ -8,20 +8,34 @@ import (
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"time"
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)
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func asciiChar(pixel byte) string {
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asciiChars := []string{"@", "#", "$", "%", "?", "*", "+", ";", ":", ",", "."}
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return asciiChars[pixel/25]
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var (
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Cfg *Options
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currentMessage *string
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)
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// Options holds telnet package configuration
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type Options struct {
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Enabled bool
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ListenAddress string
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Width int
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Height int
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Delay int
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}
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// ServeAsciiArt starts a telnet server that send all packets as ASCII Art
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func ServeAsciiArt(reader io.Reader) {
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listener, err := net.Listen("tcp", ":4242")
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if err != nil {
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log.Printf("Error while listening to the port 4242: %s", err)
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func Serve(config *Options) {
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Cfg = config
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if !Cfg.Enabled {
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return
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}
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currentMessage := ""
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listener, err := net.Listen("tcp", Cfg.ListenAddress)
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if err != nil {
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log.Printf("Error while listening to the address %s: %s", Cfg.ListenAddress, err)
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return
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}
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currentMessage = new(string)
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go func() {
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for {
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@ -32,7 +46,7 @@ func ServeAsciiArt(reader io.Reader) {
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}
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go func(s net.Conn) {
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for {
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n, err := s.Write([]byte(currentMessage))
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n, err := s.Write([]byte(*currentMessage))
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if err != nil {
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log.Printf("Error while sending TCP data: %s", err)
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_ = s.Close()
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@ -42,13 +56,28 @@ func ServeAsciiArt(reader io.Reader) {
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_ = s.Close()
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break
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}
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time.Sleep(50 * time.Millisecond)
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time.Sleep(time.Duration(Cfg.Delay) * time.Millisecond)
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}
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}(s)
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}
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}()
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buff := make([]byte, 2048)
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log.Println("Telnet server initialized")
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}
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func asciiChar(pixel byte) string {
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asciiChars := []string{"@", "#", "$", "%", "?", "*", "+", ";", ":", ",", ".", " "}
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return asciiChars[(255-pixel)/23]
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}
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// ServeAsciiArt starts a telnet server that send all packets as ASCII Art
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func ServeAsciiArt(reader io.ReadCloser) {
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if !Cfg.Enabled {
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_ = reader.Close()
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return
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}
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buff := make([]byte, Cfg.Width*Cfg.Height)
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header := "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
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for {
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n, _ := reader.Read(buff)
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@ -56,13 +85,13 @@ func ServeAsciiArt(reader io.Reader) {
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break
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}
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imageStr := ""
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for j := 0; j < 18; j++ {
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for i := 0; i < 32; i++ {
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pixel := buff[32*j+i]
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for j := 0; j < Cfg.Height; j++ {
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for i := 0; i < Cfg.Width; i++ {
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pixel := buff[Cfg.Width*j+i]
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imageStr += asciiChar(pixel) + asciiChar(pixel)
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}
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imageStr += "\n"
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}
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currentMessage = header + imageStr
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*currentMessage = header + imageStr
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}
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}
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@ -3,6 +3,7 @@ package webrtc
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import (
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"bufio"
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"fmt"
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"gitlab.crans.org/nounous/ghostream/stream/telnet"
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"io"
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"log"
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@ -53,7 +54,7 @@ func ingestFrom(inputChannel chan srt.Packet) {
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"-f", "rtp", "rtp://127.0.0.1:5004",
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"-vn", "-acodec", "libopus", "-cpu-used", "5", "-deadline", "1", "-qmin", "10", "-qmax", "42", "-error-resilient", "1", "-auto-alt-ref", "1",
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"-f", "rtp", "rtp://127.0.0.1:5005",
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"-an", "-f", "rawvideo", "-vf", "scale=32x18", "-pix_fmt", "gray", "pipe:1")
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"-an", "-f", "rawvideo", "-vf", fmt.Sprintf("scale=%dx%d", telnet.Cfg.Width, telnet.Cfg.Height), "-pix_fmt", "gray", "pipe:1")
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input, err := ffmpeg.StdinPipe()
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if err != nil {
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