OptionaldurationThe duration of the video in milliseconds.
OptionalhThe intended display height of the image in pixels. This may differ from the intrinsic dimensions of the image file.
OptionalmimetypeThe mimetype of the image, e.g. image/jpeg.
OptionalsizeSize of the image in bytes.
Optionalthumbnail_Information on the encrypted thumbnail file, as specified in End-to-end encryption. Only present if the thumbnail is encrypted.
Optionalthumbnail_Metadata about the image referred to in thumbnail_url.
Optionalthumbnail_The URL to the thumbnail of the file. Only present if the thumbnail is unencrypted.
OptionalwThe intended display width of the image in pixels. This may differ from the intrinsic dimensions of the image file.
Information on media attachments of msgtype
m.videoUsed within
m.room.messageevents that reference video files.See
https://spec.matrix.org/v1.11/client-server-api/#mvideo