Adding more options

src/index.ts

@@ -1,4 +1,4 @@
-import { ChildProcess, spawn } from "child_process"
+import { ChildProcess, spawn } from "child_process";
 import { EventEmitter } from "events";
 import { Writable } from "stream";
 import { IOptions } from "./options";
@@ -12,27 +12,37 @@ export class Rtsp extends EventEmitter {
   private _started: boolean;
   private _buffer: Buffer;
   private _options: IOptions;
+  private _paused: boolean;
 
   constructor(connectionString: string, options: IOptions) {
     super();
     this._started = false;
     this._connecteionString = connectionString;
     this._childProcess = undefined;
-        this._buffer = Buffer.from('');
+    this._buffer = Buffer.from("");
     this._options = options;
+    this._paused = false;
+
+    this.onData = this.onData.bind(this);
   }
 
   public get isStarted(): boolean {
     return this._started;
   }
 
+  public get isPaused(): boolean {
+    return this._paused;
+  }
+
   public start(): void {
     const argStrings = [
+      //   `-rtsp_transport tcp`,
       `-i ${this._connecteionString}`,
       `-r ${this._options.rate ?? 10}`,
-            `-f image2`,
-            `-codec:v ${this._options.codec ?? 'libx264'}`,
-            `-update 1 -`
+      this._options.image
+        ? `-f image2`
+        : `-codec:v ${this._options.codec ?? "libx264"}`,
+      `-update 1 -`,
     ];
     const args = argStrings.join(" ");
     this._childProcess = spawn("ffmpeg", args.split(/\s+/));
@@ -41,18 +51,26 @@ export class Rtsp extends EventEmitter {
       return;
     }
 
-        this._childProcess.stdout?.on('data', this.onData)
-        this._childProcess.on('exit', this.onExit);
-        this._childProcess.on('error', this.onError);
+    this._childProcess.stdout?.on("data", this.onData);
+    this._childProcess.on("exit", this.onExit);
+    this._childProcess.on("error", this.onError);
 
     if (this._childProcess.stderr) {
-            this._childProcess.stderr.on('data', this.onStdErrorData);
+      this._childProcess.stderr.on("data", this.onStdErrorData);
     }
   }
 
   public close(): void {
-        this._childProcess && this._childProcess.kill('SIGKILL');
-        this.emit('closed');
+    this._childProcess && this._childProcess.kill("SIGKILL");
+    this.emit("closed");
+  }
+
+  public pause(): void {
+    this._paused = true;
+  }
+
+  public resume(): void {
+    this._paused = false;
   }
 
   public getStdin(): Writable | null {
@@ -60,34 +78,42 @@ export class Rtsp extends EventEmitter {
   }
 
   private onError = (err: Error): void => {
-        this.emit('error', new Error('Failed to start stream: ' + err.message));
-    }
+    this.emit("error", new Error("Failed to start stream: " + err.message));
+  };
 
   private onStdErrorData = (data: any): void => {
     if (!this._started) {
       this._started = true;
-            
     }
     let msg = "";
-        data.toString().split(/\n/).forEach((line: string) => {
-            msg += `line\n`;
+    data
+      .toString()
+      .split(/\n/)
+      .forEach((line: string) => {
+        msg += `${line}\n`;
       });
 
     this.emit("error", msg);
-    }
+  };
 
   private onExit = (code: number, signal: NodeJS.Signals): void => {
-        const message = 'FFmpeg exited with code: ' + code + ' and signal: ' + signal;
-        this.emit('closed', message);
-    }
+    const message =
+      "FFmpeg exited with code: " + code + " and signal: " + signal;
+    this.emit("closed", message);
+  };
 
-    private onData = (data: Buffer): void  => {
-        if (data.length > 1) {
-            this._buffer = this._buffer ? Buffer.concat([this._buffer, data]) : this._buffer = Buffer.from(data);
+  private onData(data: Buffer): void {
+    if (!this._paused && data.length > 1) {
+      this._buffer = this._buffer
+        ? Buffer.concat([this._buffer, data])
+        : (this._buffer = Buffer.from(data));
       //End of image
-            if(data[data.length - 2].toString(16) == ef1 && data[data.length -1].toString(16) == ef2){
-                this.emit('data', this._buffer)
-                this._buffer = Buffer.from('');
+      if (
+        data[data.length - 2].toString(16) == ef1 &&
+        data[data.length - 1].toString(16) == ef2
+      ) {
+        this.emit("data", this._buffer);
+        this._buffer = Buffer.from("");
       }
     }
   }

src/options.ts

@@ -1,6 +1,7 @@
 export interface IOptions {
-    rate?: number,
-    quality?: number,
-    resolution?: string,
-    codec?: string,
+  rate?: number;
+  quality?: number;
+  resolution?: string;
+  codec?: string;
+  image?: boolean;
 }

workspace.code-workspace

@@ -0,0 +1,8 @@
+{
+  "folders": [
+    {
+      "path": "."
+    }
+  ],
+  "settings": {}
+}