diff --git a/docs/raw-videos.md b/docs/raw-videos.md
index e3e33d50..a77d56c2 100644
--- a/docs/raw-videos.md
+++ b/docs/raw-videos.md
@@ -29,7 +29,9 @@ natively.  Accordingly, CyTube only supports a few codecs:
 
 **Video**
 
+  * MP4 (AV1)
   * MP4 (H.264)
+  * WebM (AV1)
   * WebM (VP8)
   * WebM (VP9)
   * Ogg/Theora
diff --git a/player/raw-file.coffee b/player/raw-file.coffee
index 1b036e2b..47b20dce 100644
--- a/player/raw-file.coffee
+++ b/player/raw-file.coffee
@@ -1,12 +1,13 @@
 codecToMimeType = (codec) ->
     switch codec
-        when 'mov/h264' then 'video/mp4'
+        when 'mov/h264', 'mov/av1' then 'video/mp4'
         when 'flv/h264' then 'video/flv'
-        when 'matroska/vp8', 'matroska/vp9' then 'video/webm'
+        when 'matroska/vp8', 'matroska/vp9', 'matroska/av1' then 'video/webm'
         when 'ogg/theora' then 'video/ogg'
         when 'mp3' then 'audio/mp3'
         when 'vorbis' then 'audio/ogg'
         when 'aac' then 'audio/aac'
+        when 'opus' then 'audio/opus'
         else 'video/flv'
 
 window.FilePlayer = class FilePlayer extends VideoJSPlayer
diff --git a/src/custom-media.js b/src/custom-media.js
index 9a1289cc..a43c920d 100644
--- a/src/custom-media.js
+++ b/src/custom-media.js
@@ -24,6 +24,7 @@ const SOURCE_CONTENT_TYPES = new Set([
     'audio/aac',
     'audio/ogg',
     'audio/mpeg',
+    'audio/opus',
     'video/mp4',
     'video/ogg',
     'video/webm'
diff --git a/src/ffmpeg.js b/src/ffmpeg.js
index 02225974..7d8e77a3 100644
--- a/src/ffmpeg.js
+++ b/src/ffmpeg.js
@@ -80,13 +80,16 @@ var acceptedCodecs = {
     "flv/h264": true,
     "matroska/vp8": true,
     "matroska/vp9": true,
-    "ogg/theora": true
+    "ogg/theora": true,
+    "mov/av1": true,
+    "matroska/av1": true
 };
 
 var acceptedAudioCodecs = {
     "mp3": true,
     "vorbis": true,
-    "aac": true
+    "aac": true,
+    "opus": true
 };
 
 var audioOnlyContainers = {