File Extension: .f4v
Mime Type: video/mp4
Description: Video for Adobe Flash Player
Supported media types in F4V file format:
- Video: H.264
- Images (still frame of video data): GIF, PNG, JPEG
- Audio: AAC, HE-AAC, MP3
F4V file format is based on the ISO base media file format and is supported starting with Flash Player 9 update 3. F4V does not support Screen video, Sorenson Spark, VP6 video compression formats and ADPCM, Nellymoser audio compression formats. Authors of Flash Player strongly encourage everyone to embrace the new standard file format F4V (ISO base media file format). There are functional limits with the FLV structure when streaming H.264 or AAC which could not be overcome without a redesign of the file format. This is one reason why Adobe Systems is moving away from the traditional FLV file structure.