diff --git a/api/RTCPeerConnection.json b/api/RTCPeerConnection.json
index e4e3cecd187c54..075b6590cd0dae 100644
--- a/api/RTCPeerConnection.json
+++ b/api/RTCPeerConnection.json
@@ -510,6 +510,152 @@
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "init_direction_parameter": {
+          "__compat": {
+            "description": "<code>init.direction</code> parameter",
+            "support": {
+              "chrome": {
+                "version_added": "69"
+              },
+              "chrome_android": {
+                "version_added": "69"
+              },
+              "edge": {
+                "version_added": "79"
+              },
+              "firefox": {
+                "version_added": "59"
+              },
+              "firefox_android": {
+                "version_added": "59"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "opera": {
+                "version_added": false
+              },
+              "opera_android": {
+                "version_added": false
+              },
+              "safari": {
+                "version_added": "11"
+              },
+              "safari_ios": {
+                "version_added": "11"
+              },
+              "samsunginternet_android": {
+                "version_added": "10.0"
+              },
+              "webview_android": {
+                "version_added": "69"
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "init_sendEncodings_parameter": {
+          "__compat": {
+            "description": "<code>init.sendEncodings</code> parameter",
+            "support": {
+              "chrome": {
+                "version_added": "69"
+              },
+              "chrome_android": {
+                "version_added": "69"
+              },
+              "edge": {
+                "version_added": "79"
+              },
+              "firefox": {
+                "version_added": false,
+                "notes": "<code>sendEncodings</code> is not yet implemented in Firefox. See <a href='https://bugzil.la/1396918'>bug 1396918</a>."
+              },
+              "firefox_android": {
+                "version_added": false,
+                "notes": "<code>sendEncodings</code> is not yet implemented in Firefox. See <a href='https://bugzil.la/1396918'>bug 1396918</a>."
+              },
+              "ie": {
+                "version_added": false
+              },
+              "opera": {
+                "version_added": false
+              },
+              "opera_android": {
+                "version_added": false
+              },
+              "safari": {
+                "version_added": "14.1"
+              },
+              "safari_ios": {
+                "version_added": "14.5"
+              },
+              "samsunginternet_android": {
+                "version_added": "10.0"
+              },
+              "webview_android": {
+                "version_added": "69"
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "init_streams_parameter": {
+          "__compat": {
+            "description": "<code>init.streams</code> parameter",
+            "support": {
+              "chrome": {
+                "version_added": "69"
+              },
+              "chrome_android": {
+                "version_added": "69"
+              },
+              "edge": {
+                "version_added": "79"
+              },
+              "firefox": {
+                "version_added": "59"
+              },
+              "firefox_android": {
+                "version_added": "59"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "opera": {
+                "version_added": false
+              },
+              "opera_android": {
+                "version_added": false
+              },
+              "safari": {
+                "version_added": "12.1"
+              },
+              "safari_ios": {
+                "version_added": "12.2"
+              },
+              "samsunginternet_android": {
+                "version_added": "10.0"
+              },
+              "webview_android": {
+                "version_added": "69"
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "canTrickleIceCandidates": {
diff --git a/api/RTCRtpTransceiverInit.json b/api/RTCRtpTransceiverInit.json
deleted file mode 100644
index 343bc611765791..00000000000000
--- a/api/RTCRtpTransceiverInit.json
+++ /dev/null
@@ -1,199 +0,0 @@
-{
-  "api": {
-    "RTCRtpTransceiverInit": {
-      "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiverInit",
-        "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiverinit",
-        "support": {
-          "chrome": {
-            "version_added": "69"
-          },
-          "chrome_android": {
-            "version_added": "69"
-          },
-          "edge": {
-            "version_added": "≤18"
-          },
-          "firefox": {
-            "version_added": "59"
-          },
-          "firefox_android": {
-            "version_added": "59"
-          },
-          "ie": {
-            "version_added": false
-          },
-          "opera": {
-            "version_added": null
-          },
-          "opera_android": {
-            "version_added": null
-          },
-          "safari": {
-            "version_added": "11"
-          },
-          "safari_ios": {
-            "version_added": "11"
-          },
-          "samsunginternet_android": {
-            "version_added": "10.0"
-          },
-          "webview_android": {
-            "version_added": "69"
-          }
-        },
-        "status": {
-          "experimental": false,
-          "standard_track": true,
-          "deprecated": false
-        }
-      },
-      "direction": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiverInit/direction",
-          "support": {
-            "chrome": {
-              "version_added": "69"
-            },
-            "chrome_android": {
-              "version_added": "69"
-            },
-            "edge": {
-              "version_added": "≤18"
-            },
-            "firefox": {
-              "version_added": "59"
-            },
-            "firefox_android": {
-              "version_added": "59"
-            },
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": null
-            },
-            "opera_android": {
-              "version_added": null
-            },
-            "safari": {
-              "version_added": "11"
-            },
-            "safari_ios": {
-              "version_added": "11"
-            },
-            "samsunginternet_android": {
-              "version_added": "10.0"
-            },
-            "webview_android": {
-              "version_added": "69"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "sendEncodings": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiverInit/sendEncodings",
-          "support": {
-            "chrome": {
-              "version_added": "69"
-            },
-            "chrome_android": {
-              "version_added": "69"
-            },
-            "edge": {
-              "version_added": "≤18"
-            },
-            "firefox": {
-              "version_added": false,
-              "notes": "<code>sendEncodings</code> is not yet implemented in Firefox. See <a href='https://bugzil.la/1396918'>bug 1396918</a>."
-            },
-            "firefox_android": {
-              "version_added": false,
-              "notes": "<code>sendEncodings</code> is not yet implemented in Firefox. See <a href='https://bugzil.la/1396918'>bug 1396918</a>."
-            },
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": null
-            },
-            "opera_android": {
-              "version_added": null
-            },
-            "safari": {
-              "version_added": "14.1"
-            },
-            "safari_ios": {
-              "version_added": "14.5"
-            },
-            "samsunginternet_android": {
-              "version_added": "10.0"
-            },
-            "webview_android": {
-              "version_added": "69"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "streams": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiverInit/streams",
-          "support": {
-            "chrome": {
-              "version_added": "69"
-            },
-            "chrome_android": {
-              "version_added": "69"
-            },
-            "edge": {
-              "version_added": "≤18"
-            },
-            "firefox": {
-              "version_added": "59"
-            },
-            "firefox_android": {
-              "version_added": "59"
-            },
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": null
-            },
-            "opera_android": {
-              "version_added": null
-            },
-            "safari": {
-              "version_added": "12.1"
-            },
-            "safari_ios": {
-              "version_added": "12.2"
-            },
-            "samsunginternet_android": {
-              "version_added": "10.0"
-            },
-            "webview_android": {
-              "version_added": "69"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}