feat: DEV-4028: Use $fps from task for frameRate (#1141)

* feat: DEV-4028: Use $fps from task for frameRate

* Get back to always string frameRate

* Fix default value

* Another small fix, Label Stream was broken

Author: hlomzik

Diff for: src/tags/object/Video/Video.js

@@ -1,13 +1,14 @@
 import { getRoot, types } from 'mobx-state-tree';
 import React from 'react';
 
+import { isTimeRelativelySimilar } from '../../../lib/AudioUltra';
 import { AnnotationMixin } from '../../../mixins/AnnotationMixin';
+import IsReadyMixin from '../../../mixins/IsReadyMixin';
 import ProcessAttrsMixin from '../../../mixins/ProcessAttrs';
-import ObjectBase from '../Base';
 import { SyncMixin } from '../../../mixins/SyncMixin';
-import IsReadyMixin from '../../../mixins/IsReadyMixin';
-import { isTimeRelativelySimilar } from '../../../lib/AudioUltra';
+import { parseValue } from '../../../utils/data';
 import { FF_DEV_2715, isFF } from '../../../utils/feature-flags';
+import ObjectBase from '../Base';
 
 const isFFDev2715 = isFF(FF_DEV_2715);
 
@@ -40,7 +41,7 @@ const isFFDev2715 = isFF(FF_DEV_2715);
  * @meta_description Customize Label Studio with the Video tag for basic video annotation tasks for machine learning and data science projects.
  * @param {string} name Name of the element
  * @param {string} value URL of the video
- * @param {number} [frameRate=24] videp frame rate per second; default is 24
+ * @param {number} [frameRate=24] video frame rate per second; default is 24; can use task data like `$fps`
  * @param {string} [sync] object name to sync with
  * @param {boolean} [muted=false] muted video
  * @param {number} [height=600] height of the video
@@ -114,10 +115,11 @@ const Model = types
 
     return {
       afterCreate() {
-        const { framerate } = self;
+        const framerate = Number(parseValue(self.framerate, self.store.task?.dataObj));
 
-        if (!framerate) self.framerate = 24;
-        else if (framerate < 1) self.framerate = 1 / framerate;
+        if (!framerate || isNaN(framerate)) self.framerate = '24';
+        else if (framerate < 1) self.framerate = String(1 / framerate);
+        else self.framerate = String(framerate);
       },
 
       triggerSyncPlay() {