The specs for standard videos and mix width videos are…
File Type: Mp4/M4v/MOV
File Size: 2GB Max
Encoding: h.264/h 265
Length: 4 seconds - 15 minutes [recommended video length: 6-15 seconds]
Text: Title: up to 100 characters, Description: up to 500 characters,
Aspect Ratio: Recommendation for standard videos: 1:1 square or 2:5/9:16 vertical.