Expected pre-recorded video file format

Container 

 MP4 

 

 

 File extension 

 .mp4 

 

 

 Video codec 

 H264 (Profil High, Level 4.2) 

 

 

 Video resolution 

 1920x1080 (1080x1920 for 9:16 ratio)  

 

 

 Video interlacing 

 Progressive 

 

 

 Video frame rate 

 25 or 30 fps  

 

 

 Video bitrate 

 10 to 17 Mbps - Constant Bitrate (CBR) 

 

 

 Audio codec 

 AAC 

 

 

 Audio tracks / Channels 

 

 1 track / 1 or 2 channels 

 

 

 

 Audio sampling rate 

 44,1 - 48kHz 

 

 

 Audio bitrate 

 128 - 256 kbps  

 

 

 

 These parameters are intentionally chosen to provide the best balance between quality, compatibility and performance : Excellent visual quality for Full HD (1080p) content Maximum device compatibility (desktop, mobile, tablets, smart TVs, set‑top boxes) Predictable playback performance , including hardware decoding Optimized storage, bandwidth usage and transfer times 

 For video content with alpha channel a Apple ProRes 4444 encoding is requiererd