Blog Details

OTT Platform Delivery Formats

• Preferred video resolution is Full HD (1920 × 1080) or 4K (3840 × 2160).
  
• Aspect ratio is typically 16:9 for horizontal cinematic experience.
  
• File formats include MP4 (H.264) with AAC or Dolby audio encoding.
  
• Subtitles are delivered separately in formats like SRT or WebVTT.
  
• Closed captioning and loudness compliance are mandatory in most cases.
  

YouTube Content Delivery Formats

• Standard resolution ranges from HD (1280 × 720) to 4K (2160p).
  
• Recommended aspect ratio is 16:9, with adaptive support for vertical and square.
  
• File types include MP4 (H.264 codec) with stereo audio.
  
• Thumbnails are uploaded as separate JPEG or PNG images.
  
• Subtitles can be uploaded manually or generated as closed captions.
  

WhatsApp Reels and Short Videos

• Ideal resolution is 720 × 1280 for vertical full-screen viewing.
  
• Aspect ratio is 9:16, optimized for smartphone display.
  
• Video duration is generally under 60 seconds for faster sharing.
  
• MP4 format with H.264 compression and AAC audio is most compatible.
  
• File size should be kept under 16 MB for smooth sending without compression.
  

Audio and Frame Rate Standards

• Audio sample rate is 48 kHz for OTT and 44.1 kHz for web and mobile.
  
• Standard frame rate is 24, 25, or 30 FPS depending on the target platform.
  
• Variable bit rates are accepted, but constant bit rate ensures quality retention.
  
• Peak loudness and mix levels must adhere to platform-specific norms.
  
• Audio channels are stereo for web and mobile, 5.1 for OTT.
  

Metadata and Captioning Requirements

• OTT platforms require metadata like episode number, synopsis, and language.
  
• YouTube supports tagging, chapters, and end screen metadata.
  
• WhatsApp does not support external metadata but uses file name and preview.
  
• Subtitles and captions must be accurately time-coded and aligned.
  
• Descriptions, hashtags, and language tags enhance visibility across platforms.