Flowchart
Video uploading
Video is uploaded to storage directly, not passing web server to save bandwidth.
Video preprocessing - Chain of responsibilities
Content and duplication check
Make sure videos have good quality and not malformed.
Thumbnails
Thumbnail: Can be manually uploaded by the user or automatically generated by the system.
Watermark
An image overlay on top of your video contains identifying information about your video.
Transcoding
Video transcoding: Videos are converted to support different container/codec. Video transcoding is to
Raw video consumes large amount of storage space.
Many browsers and devices only support certain form of encoding.
Video could be encoded into different resolution frames. In terms of which frames to play, it could be decided based on the network speed.
Video search
when videos are uploaded, metadata (user, video title, etc) will be used to generate the inverse index.
When client app plays video, it could play the video on the fly using protocols such as MPEG-DASH.
Last updated
