Video preroll (type: Video, objective: Reach, Video Views)

Device type: crossdevice format
Platform: social networks ok.ru, vk.com, VK projects, advertising network myTarget
Placement: preroll (in-stream)

Short video (up to 30 seconds) before watching the main video.

Video:

• no more than 30 seconds;
  
• file size - up to 10 Mb;
  
• resolution of the video - 640x360, 1280x720 or 1920x1080;
  
• do not show important information in the bottom 10% of the video, because there are player controls;
  
• should not mislead the user, contain buttons, duplicate services and other elements;
  
• should not contain visible artifacts, distortion of proportions and other errors;
  
• poor quality processing and high compression are not accepted.

Format:

• MP4 (MPEG-4): video codecs - H.264, audio codec - AAC.