Bug 1754239 - Display CodecSupportInfo gfxVar in about:support r=media-playback-reviewers,fluent-reviewers,Gijs,alwu

Differential Revision: https://phabricator.services.mozilla.com/D147388

toolkit/content/aboutSupport.js

@@ -1052,6 +1052,12 @@ var snapshotFormatters = {
 
     // Media Capabilitites
     insertEnumerateDatabase();
+
+    // Codec decode/encode support information (inc. HW accel)
+    // Currently supported on Windows with Linux/OS X support under development
+    if (AppConstants.platform == "win") {
+      insertBasicInfo("media-codec-support-info", data.codecSupportInfo);
+    }
   },
 
   remoteAgent(data) {

toolkit/locales/en-US/toolkit/about/aboutSupport.ftl

@@ -164,6 +164,7 @@ media-device-channels = Channels
 media-device-rate = Rate
 media-device-latency = Latency
 media-capabilities-title = Media Capabilities
+media-codec-support-info = Codec Support Information
 # List all the entries of the database.
 media-capabilities-enumerate = Enumerate database
 

toolkit/modules/Troubleshoot.jsm

@@ -776,6 +776,22 @@ var dataProviders = {
         .audioDevices(Ci.nsIDOMWindowUtils.AUDIO_INPUT)
         .QueryInterface(Ci.nsIArray)
     );
+
+    data.codecSupportInfo = "Unknown";
+
+    // We initialize gfxInfo here in the same way as in the media
+    // section -- should we break this out into a separate function?
+    try {
+      // nsIGfxInfo may not be implemented on some platforms.
+      var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+      // Note: CodecSupportInfo is not populated until we have
+      // actually instantiated a PDM. We may want to add a button
+      // or some other means of allowing the user to manually
+      // instantiate a PDM to ensure that the data is available.
+      data.codecSupportInfo = gfxInfo.CodecSupportInfo;
+    } catch (e) {}
+
     done(data);
   },
 

toolkit/modules/tests/browser/browser_Troubleshoot.js

@@ -859,6 +859,10 @@ const SNAPSHOT_SCHEMA = {
             },
           },
         },
+        codecSupportInfo: {
+          required: false,
+          type: "string",
+        },
       },
     },
     accessibility: {