FF130 Relnote: HTMLVideoElement.request/cancelVideoFrameCallback() su… (

mdn#35319) FF130 Relnote: HTMLVideoElement.request/cancelVideoFrameCallback() supported
pepelsbey · Aug 21, 2024 · 2ec002c · 2ec002c
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diff --git a/files/en-us/mozilla/firefox/experimental_features/index.md b/files/en-us/mozilla/firefox/experimental_features/index.md
@@ -1166,6 +1166,46 @@ This includes: `SVGPathSegList`, [SVGPathElement.getPathSegAtLength()](/en-US/do
 
 ### Graphics: Canvas, WebGL, and WebGPU
 
+#### Request video frame callbacks
+
+The {{domxref('HTMLVideoElement/requestVideoFrameCallback','requestVideoFrameCallback()')}} method of the {{domxref('HTMLVideoElement')}} interface registers a callback function that runs when a new video frame is sent to the compositor. Developers can use this to perform operations on each video frame, enabling more efficient painting to a canvas, video analysis, synchronization with external audio sources, and so on. The method returns a callback handle that can be passed to {{domxref('HTMLVideoElement.cancelVideoFrameCallback()')}} in order to cancel the outstanding callback request. ([Firefox bug 1800882](https://bugzil.la/1800882)).
+
+<table>
+  <thead>
+    <tr>
+      <th>Release channel</th>
+      <th>Version added</th>
+      <th>Enabled by default?</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <th>Nightly</th>
+      <td>130</td>
+      <td>Yes</td>
+    </tr>
+    <tr>
+      <th>Developer Edition</th>
+      <td>130</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Beta</th>
+      <td>130</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Release</th>
+      <td>130</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Preference name</th>
+      <td colspan="2"><code>media.rvfc.enabled</code></td>
+    </tr>
+  </tbody>
+</table>
+
 #### Hit regions
 
 Whether the mouse coordinates are within a particular area on the canvas is a common problem to solve. The hit region API allows you to define an area of your canvas and provides another possibility to expose interactive content on a canvas to accessibility tools.

diff --git a/files/en-us/mozilla/firefox/releases/130/index.md b/files/en-us/mozilla/firefox/releases/130/index.md
@@ -74,6 +74,11 @@ This article provides information about the changes in Firefox 130 that affect d
 
 These features are newly shipped in Firefox 130 but are disabled by default. To experiment with them, search for the appropriate preference on the `about:config` page and set it to `true`. You can find more such features on the [Experimental features](/en-US/docs/Mozilla/Firefox/Experimental_features) page.
 
+- **Request video frame callback:** `media.rvfc.enabled`.
+
+  The {{domxref('HTMLVideoElement/requestVideoFrameCallback','requestVideoFrameCallback()')}} method of the {{domxref('HTMLVideoElement')}} interface registers a callback function that runs when a new video frame is sent to the compositor. This enables developers to perform efficient operations on each video frame, such as video analysis, painting to a canvas, synchronization with external audio sources, and so on. The method returns a callback handle that can be passed to {{domxref('HTMLVideoElement.cancelVideoFrameCallback()')}} in order to cancel the outstanding callback request.
+  Both methods are are enabled by default on the nightly build. ([Firefox bug 1800882](https://bugzil.la/1800882)).
+
 ## Older versions
 
 {{Firefox_for_developers}}