diff --git a/crates/ruma-common/src/events/room/message/audio.rs b/crates/ruma-common/src/events/room/message/audio.rs
index 4ec6e85a..7f187304 100644
--- a/crates/ruma-common/src/events/room/message/audio.rs
+++ b/crates/ruma-common/src/events/room/message/audio.rs
@@ -26,16 +26,21 @@ pub struct AudioMessageEventContent {
 }
 
 impl AudioMessageEventContent {
+    /// Creates a new `AudioMessageEventContent` with the given body and source.
+    pub fn new(body: String, source: MediaSource) -> Self {
+        Self { body, source, info: None }
+    }
+
     /// Creates a new non-encrypted `AudioMessageEventContent` with the given body, url and
     /// optional extra info.
-    pub fn plain(body: String, url: OwnedMxcUri, info: Option<Box<AudioInfo>>) -> Self {
-        Self { body, source: MediaSource::Plain(url), info }
+    pub fn plain(body: String, url: OwnedMxcUri) -> Self {
+        Self::new(body, MediaSource::Plain(url))
     }
 
     /// Creates a new encrypted `AudioMessageEventContent` with the given body and encrypted
     /// file.
     pub fn encrypted(body: String, file: EncryptedFile) -> Self {
-        Self { body, source: MediaSource::Encrypted(Box::new(file)), info: None }
+        Self::new(body, MediaSource::Encrypted(Box::new(file)))
     }
 }
 
diff --git a/crates/ruma-common/src/events/room/message/file.rs b/crates/ruma-common/src/events/room/message/file.rs
index 428ba623..60be19fb 100644
--- a/crates/ruma-common/src/events/room/message/file.rs
+++ b/crates/ruma-common/src/events/room/message/file.rs
@@ -30,16 +30,21 @@ pub struct FileMessageEventContent {
 }
 
 impl FileMessageEventContent {
+    /// Creates a new `FileMessageEventContent` with the given body and source.
+    pub fn new(body: String, source: MediaSource) -> Self {
+        Self { body, filename: None, source, info: None }
+    }
+
     /// Creates a new non-encrypted `FileMessageEventContent` with the given body, url and
     /// optional extra info.
-    pub fn plain(body: String, url: OwnedMxcUri, info: Option<Box<FileInfo>>) -> Self {
-        Self { body, filename: None, source: MediaSource::Plain(url), info }
+    pub fn plain(body: String, url: OwnedMxcUri) -> Self {
+        Self::new(body, MediaSource::Plain(url))
     }
 
     /// Creates a new encrypted `FileMessageEventContent` with the given body and encrypted
     /// file.
     pub fn encrypted(body: String, file: EncryptedFile) -> Self {
-        Self { body, filename: None, source: MediaSource::Encrypted(Box::new(file)), info: None }
+        Self::new(body, MediaSource::Encrypted(Box::new(file)))
     }
 }
 
diff --git a/crates/ruma-common/src/events/room/message/image.rs b/crates/ruma-common/src/events/room/message/image.rs
index b3fd114c..ef049a14 100644
--- a/crates/ruma-common/src/events/room/message/image.rs
+++ b/crates/ruma-common/src/events/room/message/image.rs
@@ -26,15 +26,19 @@ pub struct ImageMessageEventContent {
 }
 
 impl ImageMessageEventContent {
-    /// Creates a new non-encrypted `ImageMessageEventContent` with the given body, url and
-    /// optional extra info.
-    pub fn plain(body: String, url: OwnedMxcUri, info: Option<Box<ImageInfo>>) -> Self {
-        Self { body, source: MediaSource::Plain(url), info }
+    /// Creates a new `ImageMessageEventContent` with the given body and source.
+    pub fn new(body: String, source: MediaSource) -> Self {
+        Self { body, source, info: None }
+    }
+
+    /// Creates a new non-encrypted `ImageMessageEventContent` with the given body and url.
+    pub fn plain(body: String, url: OwnedMxcUri) -> Self {
+        Self::new(body, MediaSource::Plain(url))
     }
 
     /// Creates a new encrypted `ImageMessageEventContent` with the given body and encrypted
     /// file.
     pub fn encrypted(body: String, file: EncryptedFile) -> Self {
-        Self { body, source: MediaSource::Encrypted(Box::new(file)), info: None }
+        Self::new(body, MediaSource::Encrypted(Box::new(file)))
     }
 }
diff --git a/crates/ruma-common/src/events/room/message/video.rs b/crates/ruma-common/src/events/room/message/video.rs
index 21a788b0..32d68fc9 100644
--- a/crates/ruma-common/src/events/room/message/video.rs
+++ b/crates/ruma-common/src/events/room/message/video.rs
@@ -27,16 +27,21 @@ pub struct VideoMessageEventContent {
 }
 
 impl VideoMessageEventContent {
+    /// Creates a new `VideoMessageEventContent` with the given body and source.
+    pub fn new(body: String, source: MediaSource) -> Self {
+        Self { body, source, info: None }
+    }
+
     /// Creates a new non-encrypted `VideoMessageEventContent` with the given body, url and
     /// optional extra info.
-    pub fn plain(body: String, url: OwnedMxcUri, info: Option<Box<VideoInfo>>) -> Self {
-        Self { body, source: MediaSource::Plain(url), info }
+    pub fn plain(body: String, url: OwnedMxcUri) -> Self {
+        Self::new(body, MediaSource::Plain(url))
     }
 
     /// Creates a new encrypted `VideoMessageEventContent` with the given body and encrypted
     /// file.
     pub fn encrypted(body: String, file: EncryptedFile) -> Self {
-        Self { body, source: MediaSource::Encrypted(Box::new(file)), info: None }
+        Self::new(body, MediaSource::Encrypted(Box::new(file)))
     }
 }
 
diff --git a/crates/ruma-common/tests/events/room_message.rs b/crates/ruma-common/tests/events/room_message.rs
index cfb48fee..8cb28c0a 100644
--- a/crates/ruma-common/tests/events/room_message.rs
+++ b/crates/ruma-common/tests/events/room_message.rs
@@ -475,7 +475,6 @@ fn audio_msgtype_serialization() {
         RoomMessageEventContent::new(MessageType::Audio(AudioMessageEventContent::plain(
             "Upload: my_song.mp3".to_owned(),
             mxc_uri!("mxc://notareal.hs/file").to_owned(),
-            None,
         )));
 
     assert_eq!(
@@ -509,7 +508,6 @@ fn file_msgtype_plain_content_serialization() {
         RoomMessageEventContent::new(MessageType::File(FileMessageEventContent::plain(
             "Upload: my_file.txt".to_owned(),
             mxc_uri!("mxc://notareal.hs/file").to_owned(),
-            None,
         )));
 
     assert_eq!(
@@ -622,7 +620,6 @@ fn image_msgtype_serialization() {
         RoomMessageEventContent::new(MessageType::Image(ImageMessageEventContent::plain(
             "Upload: my_image.jpg".to_owned(),
             mxc_uri!("mxc://notareal.hs/file").to_owned(),
-            None,
         )));
 
     assert_eq!(
@@ -777,7 +774,6 @@ fn video_msgtype_serialization() {
         RoomMessageEventContent::new(MessageType::Video(VideoMessageEventContent::plain(
             "Upload: my_video.mp4".to_owned(),
             mxc_uri!("mxc://notareal.hs/file").to_owned(),
-            None,
         )));
 
     assert_eq!(