On your mobile device, there are multiple ways upload a video that you have on your camera roll.

Click the gallery button in the lower left-hand corner, click "Choose a Video", and then choose the video you would like to upload.

On your desktop, simply select the "Files" option below the record button to upload the video file from wherever it is saved on your computer. Alternatively, you can drag and drop directly into Volley.

Note: There is a 50MB upload limit for any content uploaded.