Fix the fix and formatting the pull request

src/lib/pageVideoStreamTypes.ts

@@ -117,7 +117,8 @@ export type PuppeteerScreenRecorderOptions = {
   /**
    * @name ffmpegAdditionalOptions
    * @member PuppeteerScreenRecorderOptions
-   * @description Allows you to pass additional options to the ffmpeg encoder - for example you might want to pass "-movflags +faststart"
+   * @description Allows you to pass additional options to the ffmpeg encoder - 
+   * @example you might want to pass "-movflags +faststart"
    */
   readonly ffmpegAdditionalOptions?: string[];
 
@@ -142,7 +143,7 @@ export type PuppeteerScreenRecorderOptions = {
    * @member PuppeteerScreenRecorderOptions
    * @description Specify metadata information as key value pairs.
    */
-  readonly metadata?: object
+  readonly metadata?: Record<string, string>;
 };
 
 /** @ignore */

src/lib/pageVideoStreamWriter.ts

@@ -210,8 +210,11 @@ export default class PageVideoStreamWriter extends EventEmitter {
       .on('progress', (progressDetails) => {
         this.duration = progressDetails.timemark;
       });
-    for(const key in this.options.metadata) {
-      outputStream.outputOptions('-metadata', `${key}=${this.options.metadata[key]}`);
+      for (const key in this.options.metadata) {
+      outputStream.outputOptions(
+        '-metadata',
+        `${key}=${this.options.metadata[key]}`
+      );
     }
 
     if (this.options.recordDurationLimit) {
@@ -309,29 +312,25 @@ export default class PageVideoStreamWriter extends EventEmitter {
   public write(data: Buffer, durationSeconds = 1): void {
     this.status = VIDEO_WRITE_STATUS.IN_PROGRESS;
 
-    const totalFrames =  durationSeconds * this.options.fps;
-    let floored = Math.floor(totalFrames);
+    const totalFrames = durationSeconds * this.options.fps;
+    const floored = Math.floor(totalFrames);
 
-    let numberOfFPS = Math.max(
-      floored,
-      1
-    );
+    let numberOfFPS = Math.max(floored, 1);
     if (floored === 0) {
       this.frameGain += 1 - totalFrames;
     } else {
       this.frameLoss += totalFrames - floored;
     }
 
-    while(1 < this.frameLoss) {
+    while (1 < this.frameLoss) {
       this.frameLoss--;
       numberOfFPS++;
     }
-    while(1 < this.frameGain) {
+    while (1 < this.frameGain) {
       this.frameGain--;
       numberOfFPS--;
     }
 
-
     for (let i = 0; i < numberOfFPS; i++) {
       this.videoMediatorStream.write(data);
     }